diff --git a/guava/pom.xml b/guava/pom.xml
index f06ceb95767b..7a20f68ff9d9 100644
--- a/guava/pom.xml
+++ b/guava/pom.xml
@@ -160,7 +160,7 @@
               <!-- Default is supress all index checker warnings. -->
               <arg>-AsuppressWarnings=${checkerframework.suppress}</arg>
               <arg>-XDignore.symbol.file</arg>  <!-- suppress any warnings for using 'Unsafe' -->
-              <arg>-AuseDefaultsForUncheckedCode=source,bytecode</arg>
+              <arg>-AuseConservativeDefaultsForUncheckedCode=-source,-bytecode</arg>
               <arg>-AshowSuppressWarningsStrings</arg>
               <arg>-AwarnUnneededSuppressions</arg>
             </compilerArgs>
@@ -385,14 +385,14 @@
           <artifactId>checker-qual</artifactId>
           <version>0.0.0</version>
           <scope>system</scope>
-          <systemPath>${CHECKERFRAMEWORK}/checker/dist/checker-qual.jar</systemPath>
+          <systemPath>/Users/aosenxiong/waterloo/eisop/checker-framework/checker/dist/checker-qual.jar</systemPath>
         </dependency>
         <dependency>
           <groupId>io.github.eisop</groupId>
           <artifactId>checker</artifactId>
           <version>0.0.0</version>
           <scope>system</scope>
-          <systemPath>${CHECKERFRAMEWORK}/checker/dist/checker.jar</systemPath>
+          <systemPath>/Users/aosenxiong/waterloo/eisop/checker-framework/checker/dist/checker.jar</systemPath>
         </dependency>
       </dependencies>
     </profile>
diff --git a/guava/src/com/google/common/base/Ascii.java b/guava/src/com/google/common/base/Ascii.java
index d5d1266a9cff..c4ac70ac09a1 100644
--- a/guava/src/com/google/common/base/Ascii.java
+++ b/guava/src/com/google/common/base/Ascii.java
@@ -39,6 +39,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Ascii {
 
   private Ascii() {}
diff --git a/guava/src/com/google/common/base/CharMatcher.java b/guava/src/com/google/common/base/CharMatcher.java
index 1dbdf5ea8403..9d78f13ddd3a 100644
--- a/guava/src/com/google/common/base/CharMatcher.java
+++ b/guava/src/com/google/common/base/CharMatcher.java
@@ -23,6 +23,7 @@
 import com.google.common.annotations.VisibleForTesting;
 import java.util.Arrays;
 import java.util.BitSet;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.index.qual.GTENegativeOne;
 import org.checkerframework.checker.index.qual.IndexOrHigh;
 import org.checkerframework.checker.index.qual.IndexOrLow;
@@ -69,6 +70,7 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class CharMatcher implements Predicate<Character> {
   /*
    *           N777777777NO
@@ -320,7 +322,7 @@ public static CharMatcher isNot(final char match) {
    * The CharSequence is not mutated, therefore after checking its length,
    * accesses to lower indices are safe.
    */
-  public static CharMatcher anyOf(final CharSequence sequence) {
+  public static CharMatcher anyOf(final @Readonly CharSequence sequence) {
     switch (sequence.length()) {
       case 0:
         return none();
@@ -339,7 +341,7 @@ public static CharMatcher anyOf(final CharSequence sequence) {
    * Returns a {@code char} matcher that matches any BMP character not present in the given
    * character sequence. Returns a bogus matcher if the sequence contains supplementary characters.
    */
-  public static CharMatcher noneOf(CharSequence sequence) {
+  public static CharMatcher noneOf(@Readonly CharSequence sequence) {
     return anyOf(sequence).negate();
   }
 
@@ -503,7 +505,7 @@ void setBits(BitSet table) {
    * @return {@code true} if this matcher matches at least one character in the sequence
    * @since 8.0
    */
-  public boolean matchesAnyOf(CharSequence sequence) {
+  public boolean matchesAnyOf(@Readonly CharSequence sequence) {
     return !matchesNoneOf(sequence);
   }
 
@@ -517,7 +519,7 @@ public boolean matchesAnyOf(CharSequence sequence) {
    * @return {@code true} if this matcher matches every character in the sequence, including when
    *     the sequence is empty
    */
-  public boolean matchesAllOf(CharSequence sequence) {
+  public boolean matchesAllOf(@Readonly CharSequence sequence) {
     for (int i = sequence.length() - 1; i >= 0; i--) {
       if (!matches(sequence.charAt(i))) {
         return false;
@@ -537,7 +539,7 @@ public boolean matchesAllOf(CharSequence sequence) {
    * @return {@code true} if this matcher matches no characters in the sequence, including when the
    *     sequence is empty
    */
-  public boolean matchesNoneOf(CharSequence sequence) {
+  public boolean matchesNoneOf(@Readonly CharSequence sequence) {
     return indexIn(sequence) == -1;
   }
 
@@ -551,7 +553,7 @@ public boolean matchesNoneOf(CharSequence sequence) {
    * @param sequence the character sequence to examine from the beginning
    * @return an index, or {@code -1} if no character matches
    */
-  public @IndexOrLow("#1") int indexIn(CharSequence sequence) {
+  public @IndexOrLow("#1") int indexIn(@Readonly CharSequence sequence) {
     return indexIn(sequence, 0);
   }
 
@@ -570,7 +572,7 @@ public boolean matchesNoneOf(CharSequence sequence) {
    * @throws IndexOutOfBoundsException if start is negative or greater than {@code
    *     sequence.length()}
    */
-  public @IndexOrLow("#1") int indexIn(CharSequence sequence, @IndexOrHigh("#1") int start) {
+  public @IndexOrLow("#1") int indexIn(@Readonly CharSequence sequence, @IndexOrHigh("#1") int start) {
     int length = sequence.length();
     checkPositionIndex(start, length);
     for (int i = start; i < length; i++) {
@@ -591,7 +593,7 @@ public boolean matchesNoneOf(CharSequence sequence) {
    * @param sequence the character sequence to examine from the end
    * @return an index, or {@code -1} if no character matches
    */
-  public @IndexOrLow("#1") int lastIndexIn(CharSequence sequence) {
+  public @IndexOrLow("#1") int lastIndexIn(@Readonly CharSequence sequence) {
     for (int i = sequence.length() - 1; i >= 0; i--) {
       if (matches(sequence.charAt(i))) {
         return i;
@@ -608,7 +610,7 @@ public boolean matchesNoneOf(CharSequence sequence) {
   /*
    * count is incremented at most sequence.length() times
    */
-  public @IndexOrHigh("#1") int countIn(CharSequence sequence) {
+  public @IndexOrHigh("#1") int countIn(@Readonly CharSequence sequence) {
     @IndexOrHigh("#1") int count = 0;
     for (int i = 0; i < sequence.length(); i++) {
       if (matches(sequence.charAt(i))) {
@@ -628,7 +630,7 @@ public boolean matchesNoneOf(CharSequence sequence) {
    *
    * ... returns {@code "bzr"}.
    */
-  public String removeFrom(CharSequence sequence) {
+  public String removeFrom(@Readonly  CharSequence sequence) {
     String string = sequence.toString();
     @GTENegativeOne @LTEqLengthOf("string") int pos = indexIn(string);
     if (pos == -1) {
@@ -667,7 +669,7 @@ public String removeFrom(CharSequence sequence) {
    *
    * ... returns {@code "aaa"}.
    */
-  public String retainFrom(CharSequence sequence) {
+  public String retainFrom(@Readonly CharSequence sequence) {
     return negate().removeFrom(sequence);
   }
 
@@ -690,7 +692,7 @@ public String retainFrom(CharSequence sequence) {
    *     character in {@code sequence}
    * @return the new string
    */
-  public String replaceFrom(CharSequence sequence, char replacement) {
+  public String replaceFrom(@Readonly CharSequence sequence, char replacement) {
     String string = sequence.toString();
     int pos = indexIn(string);
     if (pos == -1) {
@@ -729,7 +731,7 @@ public String replaceFrom(CharSequence sequence, char replacement) {
    * replacementLen should be @IndexOrHigh("replacement")
    * indexIn should return @IndexOrLow("#1")
    */
-  public String replaceFrom(CharSequence sequence, CharSequence replacement) {
+  public String replaceFrom(@Readonly CharSequence sequence, @Readonly CharSequence replacement) {
     int replacementLen = replacement.length();
     if (replacementLen == 0) {
       return removeFrom(sequence);
@@ -777,7 +779,7 @@ public String replaceFrom(CharSequence sequence, CharSequence replacement) {
    *
    * ... is equivalent to {@link String#trim()}.
    */
-  public String trimFrom(CharSequence sequence) {
+  public String trimFrom(@Readonly CharSequence sequence) {
     int len = sequence.length();
     @IndexOrHigh("sequence") int first;
     int last;
@@ -806,7 +808,7 @@ public String trimFrom(CharSequence sequence) {
    *
    * ... returns {@code "catbab"}.
    */
-  public String trimLeadingFrom(CharSequence sequence) {
+  public String trimLeadingFrom(@Readonly CharSequence sequence) {
     int len = sequence.length();
     for (int first = 0; first < len; first++) {
       if (!matches(sequence.charAt(first))) {
@@ -826,7 +828,7 @@ public String trimLeadingFrom(CharSequence sequence) {
    *
    * ... returns {@code "abacat"}.
    */
-  public String trimTrailingFrom(CharSequence sequence) {
+  public String trimTrailingFrom(@Readonly CharSequence sequence) {
     int len = sequence.length();
     for (int last = len - 1; last >= 0; last--) {
       if (!matches(sequence.charAt(last))) {
diff --git a/guava/src/com/google/common/base/Equivalence.java b/guava/src/com/google/common/base/Equivalence.java
index 12228dfb2527..cbdb0db24482 100644
--- a/guava/src/com/google/common/base/Equivalence.java
+++ b/guava/src/com/google/common/base/Equivalence.java
@@ -22,6 +22,7 @@
 import java.util.function.BiPredicate;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -41,6 +42,7 @@
  * The type parameter is <T> rather than <T extends @Nullable> so that we can use T in the
  * doEquivalent and doHash methods to indicate that the parameter cannot be null.
  */
+@SuppressWarnings("pico")
 public abstract class Equivalence<T> implements BiPredicate<@Nullable T, @Nullable T> {
   /** Constructor for use by subclasses. */
   protected Equivalence() {}
@@ -363,7 +365,7 @@ public String toString() {
    * @since 8.0 (in Equivalences with null-friendly behavior)
    * @since 4.0 (in Equivalences)
    */
-  public static Equivalence<Object> equals() {
+  public static Equivalence<@Readonly Object> equals() {
     return Equals.INSTANCE;
   }
 
diff --git a/guava/src/com/google/common/base/Function.java b/guava/src/com/google/common/base/Function.java
index caa74141215e..5eff57dae235 100644
--- a/guava/src/com/google/common/base/Function.java
+++ b/guava/src/com/google/common/base/Function.java
@@ -18,6 +18,8 @@
 import com.google.errorprone.annotations.CanIgnoreReturnValue;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -46,7 +48,8 @@
 @AnnotatedFor({"nullness"})
 @FunctionalInterface
 @ElementTypesAreNonnullByDefault
-public interface Function<F extends @Nullable Object, T extends @Nullable Object>
+@ReceiverDependentMutable
+public interface Function<F extends @Nullable @Readonly Object, T extends @Nullable @Readonly Object>
     extends java.util.function.Function<F, T> {
   @Override
   @CanIgnoreReturnValue // TODO(kevinb): remove this
@@ -66,5 +69,5 @@ public interface Function<F extends @Nullable Object, T extends @Nullable Object
    */
   @Pure
   @Override
-  boolean equals(@CheckForNull Object object);
+  boolean equals(@CheckForNull @Readonly Object object);
 }
diff --git a/guava/src/com/google/common/base/Functions.java b/guava/src/com/google/common/base/Functions.java
index 9916c7ec11b5..4d5754ead98b 100644
--- a/guava/src/com/google/common/base/Functions.java
+++ b/guava/src/com/google/common/base/Functions.java
@@ -43,6 +43,7 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Functions {
   private Functions() {}
 
diff --git a/guava/src/com/google/common/base/Joiner.java b/guava/src/com/google/common/base/Joiner.java
index 836092879e44..2834a50a3bf0 100644
--- a/guava/src/com/google/common/base/Joiner.java
+++ b/guava/src/com/google/common/base/Joiner.java
@@ -70,6 +70,7 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public class Joiner {
   /** Returns a joiner which automatically places {@code separator} between consecutive elements. */
   public static Joiner on(String separator) {
diff --git a/guava/src/com/google/common/base/MoreObjects.java b/guava/src/com/google/common/base/MoreObjects.java
index 865a9366ec17..be689aa64d24 100644
--- a/guava/src/com/google/common/base/MoreObjects.java
+++ b/guava/src/com/google/common/base/MoreObjects.java
@@ -28,6 +28,7 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * Helper functions that operate on any {@code Object}, and are not already provided in {@link
@@ -130,7 +131,7 @@ public static <T> T firstNonNull(@CheckForNull T first, T second) {
    *     class name
    * @since 18.0 (since 2.0 as {@code Objects.toStringHelper()}).
    */
-  public static ToStringHelper toStringHelper(Object self) {
+  public static ToStringHelper toStringHelper(@Readonly Object self) {
     return new ToStringHelper(self.getClass().getSimpleName());
   }
 
@@ -350,7 +351,7 @@ public ToStringHelper addValue(long value) {
       return addUnconditionalHolder(String.valueOf(value));
     }
 
-    private static boolean isEmpty(Object value) {
+    private static boolean isEmpty(@Readonly Object value) {
       // Put types estimated to be most frequent first.
       if (value instanceof CharSequence) {
         return ((CharSequence) value).length() == 0;
@@ -421,13 +422,13 @@ private ValueHolder addHolder() {
       return valueHolder;
     }
 
-    private ToStringHelper addHolder(@CheckForNull Object value) {
+    private ToStringHelper addHolder(@CheckForNull @Readonly Object value) {
       ValueHolder valueHolder = addHolder();
       valueHolder.value = value;
       return this;
     }
 
-    private ToStringHelper addHolder(String name, @CheckForNull Object value) {
+    private ToStringHelper addHolder(String name, @CheckForNull @Readonly Object value) {
       ValueHolder valueHolder = addHolder();
       valueHolder.value = value;
       valueHolder.name = checkNotNull(name);
@@ -440,13 +441,13 @@ private UnconditionalValueHolder addUnconditionalHolder() {
       return valueHolder;
     }
 
-    private ToStringHelper addUnconditionalHolder(Object value) {
+    private ToStringHelper addUnconditionalHolder(@Readonly Object value) {
       UnconditionalValueHolder valueHolder = addUnconditionalHolder();
       valueHolder.value = value;
       return this;
     }
 
-    private ToStringHelper addUnconditionalHolder(String name, Object value) {
+    private ToStringHelper addUnconditionalHolder(String name, @Readonly Object value) {
       UnconditionalValueHolder valueHolder = addUnconditionalHolder();
       valueHolder.value = value;
       valueHolder.name = checkNotNull(name);
@@ -456,7 +457,7 @@ private ToStringHelper addUnconditionalHolder(String name, Object value) {
     // Holder object for values that might be null and/or empty.
     private static class ValueHolder {
       @CheckForNull String name;
-      @CheckForNull Object value;
+      @CheckForNull @Readonly Object value;
       @CheckForNull ValueHolder next;
     }
 
diff --git a/guava/src/com/google/common/base/Objects.java b/guava/src/com/google/common/base/Objects.java
index 13bc37f797a1..8b05a0da1ad4 100644
--- a/guava/src/com/google/common/base/Objects.java
+++ b/guava/src/com/google/common/base/Objects.java
@@ -18,6 +18,7 @@
 import java.util.Arrays;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -54,7 +55,7 @@ private Objects() {}
    * <p><b>Note for Java 7 and later:</b> This method should be treated as deprecated; use {@link
    * java.util.Objects#equals} instead.
    */
-  public static boolean equal(@CheckForNull @PolySigned Object a, @CheckForNull @PolySigned Object b) {
+  public static boolean equal(@CheckForNull @PolySigned @Readonly Object a, @CheckForNull @PolySigned @Readonly Object b) {
     return a == b || (a != null && a.equals(b));
   }
 
@@ -80,7 +81,7 @@ public static boolean equal(@CheckForNull @PolySigned Object a, @CheckForNull @P
    * java.util.Objects#hash} instead.
    */
   @Pure
-  public static int hashCode(@CheckForNull @Nullable Object... objects) {
+  public static int hashCode(@CheckForNull @Nullable @Readonly Object @Readonly ... objects) {
     return Arrays.hashCode(objects);
   }
 }
diff --git a/guava/src/com/google/common/base/Optional.java b/guava/src/com/google/common/base/Optional.java
index 8700b4977b55..ad69f2d7e15c 100644
--- a/guava/src/com/google/common/base/Optional.java
+++ b/guava/src/com/google/common/base/Optional.java
@@ -91,6 +91,7 @@
 @DoNotMock("Use Optional.of(value) or Optional.absent()")
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class Optional<T> implements Serializable {
   /**
    * Returns an {@code Optional} instance with no contained reference.
diff --git a/guava/src/com/google/common/base/Preconditions.java b/guava/src/com/google/common/base/Preconditions.java
index 9205fcbee305..63655cb1813d 100644
--- a/guava/src/com/google/common/base/Preconditions.java
+++ b/guava/src/com/google/common/base/Preconditions.java
@@ -23,6 +23,7 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.dataflow.qual.AssertMethod;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -151,7 +152,7 @@ public static void checkArgument(boolean expression) {
    */
   @AssertMethod(IllegalArgumentException.class)
   @Pure
-  public static void checkArgument(boolean expression, @CheckForNull Object errorMessage) {
+  public static void checkArgument(boolean expression, @CheckForNull @Readonly Object errorMessage) {
     if (!expression) {
       throw new IllegalArgumentException(String.valueOf(errorMessage));
     }
@@ -175,7 +176,7 @@ public static void checkArgument(boolean expression, @CheckForNull Object errorM
   public static void checkArgument(
       boolean expression,
       String errorMessageTemplate,
-      @CheckForNull @Nullable Object... errorMessageArgs) {
+      @CheckForNull @Nullable @Readonly Object... errorMessageArgs) {
     if (!expression) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, errorMessageArgs));
     }
@@ -236,7 +237,7 @@ public static void checkArgument(boolean b, String errorMessageTemplate, long p1
   @AssertMethod(IllegalArgumentException.class)
   @Pure
   public static void checkArgument(
-      boolean b, String errorMessageTemplate, @CheckForNull Object p1) {
+      boolean b, String errorMessageTemplate, @CheckForNull @Readonly Object p1) {
     if (!b) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1));
     }
@@ -297,7 +298,7 @@ public static void checkArgument(boolean b, String errorMessageTemplate, char p1
   @AssertMethod(IllegalArgumentException.class)
   @Pure
   public static void checkArgument(
-      boolean b, String errorMessageTemplate, char p1, @CheckForNull Object p2) {
+      boolean b, String errorMessageTemplate, char p1, @CheckForNull @Readonly Object p2) {
     if (!b) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -358,7 +359,7 @@ public static void checkArgument(boolean b, String errorMessageTemplate, int p1,
   @AssertMethod(IllegalArgumentException.class)
   @Pure
   public static void checkArgument(
-      boolean b, String errorMessageTemplate, int p1, @CheckForNull Object p2) {
+      boolean b, String errorMessageTemplate, int p1, @CheckForNull @Readonly Object p2) {
     if (!b) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -419,7 +420,7 @@ public static void checkArgument(boolean b, String errorMessageTemplate, long p1
   @AssertMethod(IllegalArgumentException.class)
   @Pure
   public static void checkArgument(
-      boolean b, String errorMessageTemplate, long p1, @CheckForNull Object p2) {
+      boolean b, String errorMessageTemplate, long p1, @CheckForNull @Readonly Object p2) {
     if (!b) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -435,7 +436,7 @@ public static void checkArgument(
   @AssertMethod(IllegalArgumentException.class)
   @Pure
   public static void checkArgument(
-      boolean b, String errorMessageTemplate, @CheckForNull Object p1, char p2) {
+      boolean b, String errorMessageTemplate, @CheckForNull @Readonly Object p1, char p2) {
     if (!b) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -451,7 +452,7 @@ public static void checkArgument(
   @AssertMethod(IllegalArgumentException.class)
   @Pure
   public static void checkArgument(
-      boolean b, String errorMessageTemplate, @CheckForNull Object p1, int p2) {
+      boolean b, String errorMessageTemplate, @CheckForNull @Readonly Object p1, int p2) {
     if (!b) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -467,7 +468,7 @@ public static void checkArgument(
   @AssertMethod(IllegalArgumentException.class)
   @Pure
   public static void checkArgument(
-      boolean b, String errorMessageTemplate, @CheckForNull Object p1, long p2) {
+      boolean b, String errorMessageTemplate, @CheckForNull @Readonly Object p1, long p2) {
     if (!b) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -483,7 +484,7 @@ public static void checkArgument(
   @AssertMethod(IllegalArgumentException.class)
   @Pure
   public static void checkArgument(
-      boolean b, String errorMessageTemplate, @CheckForNull Object p1, @CheckForNull Object p2) {
+      boolean b, String errorMessageTemplate, @CheckForNull @Readonly Object p1, @CheckForNull @Readonly Object p2) {
     if (!b) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -501,9 +502,9 @@ public static void checkArgument(
   public static void checkArgument(
       boolean b,
       String errorMessageTemplate,
-      @CheckForNull Object p1,
-      @CheckForNull Object p2,
-      @CheckForNull Object p3) {
+      @CheckForNull @Readonly Object p1,
+      @CheckForNull @Readonly Object p2,
+      @CheckForNull @Readonly Object p3) {
     if (!b) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2, p3));
     }
@@ -521,10 +522,10 @@ public static void checkArgument(
   public static void checkArgument(
       boolean b,
       String errorMessageTemplate,
-      @CheckForNull Object p1,
-      @CheckForNull Object p2,
-      @CheckForNull Object p3,
-      @CheckForNull Object p4) {
+      @CheckForNull @Readonly Object p1,
+      @CheckForNull @Readonly Object p2,
+      @CheckForNull @Readonly Object p3,
+      @CheckForNull @Readonly Object p4) {
     if (!b) {
       throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2, p3, p4));
     }
@@ -558,7 +559,7 @@ public static void checkState(boolean expression) {
    */
   @AssertMethod(IllegalStateException.class)
   @Pure
-  public static void checkState(boolean expression, @CheckForNull Object errorMessage) {
+  public static void checkState(boolean expression, @CheckForNull @Readonly Object errorMessage) {
     if (!expression) {
       throw new IllegalStateException(String.valueOf(errorMessage));
     }
@@ -592,7 +593,7 @@ public static void checkState(
        * that user first.
        */
       @CheckForNull String errorMessageTemplate,
-      @CheckForNull @Nullable Object... errorMessageArgs) {
+      @CheckForNull @Nullable @Readonly Object... errorMessageArgs) {
     if (!expression) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, errorMessageArgs));
     }
@@ -656,7 +657,7 @@ public static void checkState(boolean b, String errorMessageTemplate, long p1) {
    */
   @AssertMethod(IllegalStateException.class)
   @Pure
-  public static void checkState(boolean b, String errorMessageTemplate, @CheckForNull Object p1) {
+  public static void checkState(boolean b, String errorMessageTemplate, @CheckForNull @Readonly Object p1) {
     if (!b) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, p1));
     }
@@ -721,7 +722,7 @@ public static void checkState(boolean b, String errorMessageTemplate, char p1, l
   @AssertMethod(IllegalStateException.class)
   @Pure
   public static void checkState(
-      boolean b, String errorMessageTemplate, char p1, @CheckForNull Object p2) {
+      boolean b, String errorMessageTemplate, char p1, @CheckForNull @Readonly Object p2) {
     if (!b) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -786,7 +787,7 @@ public static void checkState(boolean b, String errorMessageTemplate, int p1, lo
   @AssertMethod(IllegalStateException.class)
   @Pure
   public static void checkState(
-      boolean b, String errorMessageTemplate, int p1, @CheckForNull Object p2) {
+      boolean b, String errorMessageTemplate, int p1, @CheckForNull @Readonly Object p2) {
     if (!b) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -851,7 +852,7 @@ public static void checkState(boolean b, String errorMessageTemplate, long p1, l
   @AssertMethod(IllegalStateException.class)
   @Pure
   public static void checkState(
-      boolean b, String errorMessageTemplate, long p1, @CheckForNull Object p2) {
+      boolean b, String errorMessageTemplate, long p1, @CheckForNull @Readonly Object p2) {
     if (!b) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -868,7 +869,7 @@ public static void checkState(
   @AssertMethod(IllegalStateException.class)
   @Pure
   public static void checkState(
-      boolean b, String errorMessageTemplate, @CheckForNull Object p1, char p2) {
+      boolean b, String errorMessageTemplate, @CheckForNull @Readonly Object p1, char p2) {
     if (!b) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -885,7 +886,7 @@ public static void checkState(
   @AssertMethod(IllegalStateException.class)
   @Pure
   public static void checkState(
-      boolean b, String errorMessageTemplate, @CheckForNull Object p1, int p2) {
+      boolean b, String errorMessageTemplate, @CheckForNull @Readonly Object p1, int p2) {
     if (!b) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -902,7 +903,7 @@ public static void checkState(
   @AssertMethod(IllegalStateException.class)
   @Pure
   public static void checkState(
-      boolean b, String errorMessageTemplate, @CheckForNull Object p1, long p2) {
+      boolean b, String errorMessageTemplate, @CheckForNull @Readonly Object p1, long p2) {
     if (!b) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -919,7 +920,7 @@ public static void checkState(
   @AssertMethod(IllegalStateException.class)
   @Pure
   public static void checkState(
-      boolean b, String errorMessageTemplate, @CheckForNull Object p1, @CheckForNull Object p2) {
+      boolean b, String errorMessageTemplate, @CheckForNull @Readonly Object p1, @CheckForNull @Readonly Object p2) {
     if (!b) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -938,9 +939,9 @@ public static void checkState(
   public static void checkState(
       boolean b,
       String errorMessageTemplate,
-      @CheckForNull Object p1,
-      @CheckForNull Object p2,
-      @CheckForNull Object p3) {
+      @CheckForNull @Readonly Object p1,
+      @CheckForNull @Readonly Object p2,
+      @CheckForNull @Readonly Object p3) {
     if (!b) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, p1, p2, p3));
     }
@@ -959,10 +960,10 @@ public static void checkState(
   public static void checkState(
       boolean b,
       String errorMessageTemplate,
-      @CheckForNull Object p1,
-      @CheckForNull Object p2,
-      @CheckForNull Object p3,
-      @CheckForNull Object p4) {
+      @CheckForNull @Readonly Object p1,
+      @CheckForNull @Readonly Object p2,
+      @CheckForNull @Readonly Object p3,
+      @CheckForNull @Readonly Object p4) {
     if (!b) {
       throw new IllegalStateException(lenientFormat(errorMessageTemplate, p1, p2, p3, p4));
     }
@@ -1011,7 +1012,7 @@ public static <T> T checkNotNull(@CheckForNull T reference) {
    */
   @CanIgnoreReturnValue
   @Pure
-  public static <T> T checkNotNull(@CheckForNull T reference, @CheckForNull Object errorMessage) {
+  public static <T> T checkNotNull(@CheckForNull T reference, @CheckForNull @Readonly Object errorMessage) {
     if (reference == null) {
       throw new NullPointerException(String.valueOf(errorMessage));
     }
@@ -1038,7 +1039,7 @@ public static <T> T checkNotNull(@CheckForNull T reference, @CheckForNull Object
   public static <T> T checkNotNull(
       @CheckForNull T reference,
       String errorMessageTemplate,
-      @CheckForNull @Nullable Object... errorMessageArgs) {
+      @CheckForNull @Nullable @Readonly Object... errorMessageArgs) {
     if (reference == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, errorMessageArgs));
     }
@@ -1103,7 +1104,7 @@ public static <T> T checkNotNull(@CheckForNull T obj, String errorMessageTemplat
   @CanIgnoreReturnValue
   @Pure
   public static <T> T checkNotNull(
-      @CheckForNull T obj, String errorMessageTemplate, @CheckForNull Object p1) {
+      @CheckForNull T obj, String errorMessageTemplate, @CheckForNull @Readonly Object p1) {
     if (obj == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, p1));
     }
@@ -1171,7 +1172,7 @@ public static <T> T checkNotNull(
   @CanIgnoreReturnValue
   @Pure
   public static <T> T checkNotNull(
-      @CheckForNull T obj, String errorMessageTemplate, char p1, @CheckForNull Object p2) {
+      @CheckForNull T obj, String errorMessageTemplate, char p1, @CheckForNull @Readonly Object p2) {
     if (obj == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -1239,7 +1240,7 @@ public static <T> T checkNotNull(
   @CanIgnoreReturnValue
   @Pure
   public static <T> T checkNotNull(
-      @CheckForNull T obj, String errorMessageTemplate, int p1, @CheckForNull Object p2) {
+      @CheckForNull T obj, String errorMessageTemplate, int p1, @CheckForNull @Readonly Object p2) {
     if (obj == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -1307,7 +1308,7 @@ public static <T> T checkNotNull(
   @CanIgnoreReturnValue
   @Pure
   public static <T> T checkNotNull(
-      @CheckForNull T obj, String errorMessageTemplate, long p1, @CheckForNull Object p2) {
+      @CheckForNull T obj, String errorMessageTemplate, long p1, @CheckForNull @Readonly Object p2) {
     if (obj == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -1324,7 +1325,7 @@ public static <T> T checkNotNull(
   @CanIgnoreReturnValue
   @Pure
   public static <T> T checkNotNull(
-      @CheckForNull T obj, String errorMessageTemplate, @CheckForNull Object p1, char p2) {
+      @CheckForNull T obj, String errorMessageTemplate, @CheckForNull @Readonly Object p1, char p2) {
     if (obj == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -1341,7 +1342,7 @@ public static <T> T checkNotNull(
   @CanIgnoreReturnValue
   @Pure
   public static <T> T checkNotNull(
-      @CheckForNull T obj, String errorMessageTemplate, @CheckForNull Object p1, int p2) {
+      @CheckForNull T obj, String errorMessageTemplate, @CheckForNull @Readonly Object p1, int p2) {
     if (obj == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -1358,7 +1359,7 @@ public static <T> T checkNotNull(
   @CanIgnoreReturnValue
   @Pure
   public static <T> T checkNotNull(
-      @CheckForNull T obj, String errorMessageTemplate, @CheckForNull Object p1, long p2) {
+      @CheckForNull T obj, String errorMessageTemplate, @CheckForNull @Readonly Object p1, long p2) {
     if (obj == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -1377,8 +1378,8 @@ public static <T> T checkNotNull(
   public static <T> T checkNotNull(
       @CheckForNull T obj,
       String errorMessageTemplate,
-      @CheckForNull Object p1,
-      @CheckForNull Object p2) {
+      @CheckForNull @Readonly Object p1,
+      @CheckForNull @Readonly Object p2) {
     if (obj == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, p1, p2));
     }
@@ -1397,9 +1398,9 @@ public static <T> T checkNotNull(
   public static <T> T checkNotNull(
       @CheckForNull T obj,
       String errorMessageTemplate,
-      @CheckForNull Object p1,
-      @CheckForNull Object p2,
-      @CheckForNull Object p3) {
+      @CheckForNull @Readonly Object p1,
+      @CheckForNull @Readonly Object p2,
+      @CheckForNull @Readonly Object p3) {
     if (obj == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, p1, p2, p3));
     }
@@ -1418,10 +1419,10 @@ public static <T> T checkNotNull(
   public static <T> T checkNotNull(
       @CheckForNull T obj,
       String errorMessageTemplate,
-      @CheckForNull Object p1,
-      @CheckForNull Object p2,
-      @CheckForNull Object p3,
-      @CheckForNull Object p4) {
+      @CheckForNull @Readonly Object p1,
+      @CheckForNull @Readonly Object p2,
+      @CheckForNull @Readonly Object p3,
+      @CheckForNull @Readonly Object p4) {
     if (obj == null) {
       throw new NullPointerException(lenientFormat(errorMessageTemplate, p1, p2, p3, p4));
     }
diff --git a/guava/src/com/google/common/base/Predicate.java b/guava/src/com/google/common/base/Predicate.java
index 5aa88e761687..adeda30e4b5d 100644
--- a/guava/src/com/google/common/base/Predicate.java
+++ b/guava/src/com/google/common/base/Predicate.java
@@ -18,6 +18,8 @@
 import com.google.errorprone.annotations.CanIgnoreReturnValue;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -43,11 +45,13 @@
  * @author Kevin Bourrillion
  * @since 2.0
  */
+@SuppressWarnings("pico")
 @FunctionalInterface
 @GwtCompatible
 @AnnotatedFor({"nullness"})
 @ElementTypesAreNonnullByDefault
-public interface Predicate<T extends @Nullable Object> extends java.util.function.Predicate<T> {
+@ReceiverDependentMutable
+public interface Predicate<T extends @Nullable @Readonly Object> extends java.util.function.Predicate<T> {
   /**
    * Returns the result of applying this predicate to {@code input} (Java 8 users, see notes in the
    * class documentation above). This method is <i>generally expected</i>, but not absolutely
@@ -78,7 +82,7 @@ public interface Predicate<T extends @Nullable Object> extends java.util.functio
    */
   @Pure
   @Override
-  boolean equals(@CheckForNull Object object);
+  boolean equals(@CheckForNull @Readonly Object object);
 
   @Override
   default boolean test(@ParametricNullness T input) {
diff --git a/guava/src/com/google/common/base/Predicates.java b/guava/src/com/google/common/base/Predicates.java
index c6f219597f80..0b085cd0af9d 100644
--- a/guava/src/com/google/common/base/Predicates.java
+++ b/guava/src/com/google/common/base/Predicates.java
@@ -27,6 +27,7 @@
 import java.util.regex.Pattern;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -45,6 +46,7 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Predicates {
   private Predicates() {}
 
@@ -53,13 +55,13 @@ private Predicates() {}
 
   /** Returns a predicate that always evaluates to {@code true}. */
   @GwtCompatible(serializable = true)
-  public static <T extends @Nullable Object> Predicate<T> alwaysTrue() {
+  public static <T extends @Nullable @Readonly Object> Predicate<T> alwaysTrue() {
     return ObjectPredicate.ALWAYS_TRUE.withNarrowedType();
   }
 
   /** Returns a predicate that always evaluates to {@code false}. */
   @GwtCompatible(serializable = true)
-  public static <T extends @Nullable Object> Predicate<T> alwaysFalse() {
+  public static <T extends @Nullable @Readonly Object> Predicate<T> alwaysFalse() {
     return ObjectPredicate.ALWAYS_FALSE.withNarrowedType();
   }
 
@@ -68,7 +70,7 @@ private Predicates() {}
    * null.
    */
   @GwtCompatible(serializable = true)
-  public static <T extends @Nullable Object> Predicate<T> isNull() {
+  public static <T extends @Nullable @Readonly Object> Predicate<T> isNull() {
     return ObjectPredicate.IS_NULL.withNarrowedType();
   }
 
@@ -77,7 +79,7 @@ private Predicates() {}
    * null.
    */
   @GwtCompatible(serializable = true)
-  public static <T extends @Nullable Object> Predicate<T> notNull() {
+  public static <T extends @Nullable @Readonly Object> Predicate<T> notNull() {
     return ObjectPredicate.NOT_NULL.withNarrowedType();
   }
 
@@ -85,7 +87,7 @@ private Predicates() {}
    * Returns a predicate that evaluates to {@code true} if the given predicate evaluates to {@code
    * false}.
    */
-  public static <T extends @Nullable Object> Predicate<T> not(Predicate<T> predicate) {
+  public static <T extends @Nullable @Readonly Object> Predicate<T> not(Predicate<T> predicate) {
     return new NotPredicate<>(predicate);
   }
 
@@ -96,7 +98,7 @@ private Predicates() {}
    * changes to it won't alter the behavior of this predicate. If {@code components} is empty, the
    * returned predicate will always evaluate to {@code true}.
    */
-  public static <T extends @Nullable Object> Predicate<T> and(
+  public static <T extends @Nullable @Readonly Object> Predicate<T> and(
       Iterable<? extends Predicate<? super T>> components) {
     return new AndPredicate<>(defensiveCopy(components));
   }
@@ -109,7 +111,7 @@ private Predicates() {}
    * returned predicate will always evaluate to {@code true}.
    */
   @SafeVarargs
-  public static <T extends @Nullable Object> Predicate<T> and(Predicate<? super T>... components) {
+  public static <T extends @Nullable @Readonly Object> Predicate<T> and(Predicate<? super T>... components) {
     return new AndPredicate<T>(defensiveCopy(components));
   }
 
@@ -118,7 +120,7 @@ private Predicates() {}
    * true}. The components are evaluated in order, and evaluation will be "short-circuited" as soon
    * as a false predicate is found.
    */
-  public static <T extends @Nullable Object> Predicate<T> and(
+  public static <T extends @Nullable @Readonly Object> Predicate<T> and(
       Predicate<? super T> first, Predicate<? super T> second) {
     return new AndPredicate<>(Predicates.<T>asList(checkNotNull(first), checkNotNull(second)));
   }
@@ -130,7 +132,7 @@ private Predicates() {}
    * changes to it won't alter the behavior of this predicate. If {@code components} is empty, the
    * returned predicate will always evaluate to {@code false}.
    */
-  public static <T extends @Nullable Object> Predicate<T> or(
+  public static <T extends @Nullable @Readonly Object> Predicate<T> or(
       Iterable<? extends Predicate<? super T>> components) {
     return new OrPredicate<>(defensiveCopy(components));
   }
@@ -143,7 +145,7 @@ private Predicates() {}
    * returned predicate will always evaluate to {@code false}.
    */
   @SafeVarargs
-  public static <T extends @Nullable Object> Predicate<T> or(Predicate<? super T>... components) {
+  public static <T extends @Nullable @Readonly Object> Predicate<T> or(Predicate<? super T>... components) {
     return new OrPredicate<T>(defensiveCopy(components));
   }
 
@@ -152,7 +154,7 @@ private Predicates() {}
    * {@code true}. The components are evaluated in order, and evaluation will be "short-circuited"
    * as soon as a true predicate is found.
    */
-  public static <T extends @Nullable Object> Predicate<T> or(
+  public static <T extends @Nullable @Readonly Object> Predicate<T> or(
       Predicate<? super T> first, Predicate<? super T> second) {
     return new OrPredicate<>(Predicates.<T>asList(checkNotNull(first), checkNotNull(second)));
   }
@@ -161,7 +163,7 @@ private Predicates() {}
    * Returns a predicate that evaluates to {@code true} if the object being tested {@code equals()}
    * the given target or both are null.
    */
-  public static <T extends @Nullable Object> Predicate<T> equalTo(@ParametricNullness T target) {
+  public static <T extends @Nullable @Readonly Object> Predicate<T> equalTo(@ParametricNullness T target) {
     return (target == null)
         ? Predicates.<T>isNull()
         : new IsEqualToPredicate(target).withNarrowedType();
@@ -181,7 +183,7 @@ private Predicates() {}
    * instances {@code Lists.newArrayList(1)} and {@code Arrays.asList(1)}.
    */
   @GwtIncompatible // Class.isInstance
-  public static <T extends @Nullable Object> Predicate<T> instanceOf(Class<?> clazz) {
+  public static <T extends @Nullable @Readonly Object> Predicate<T> instanceOf(Class<?> clazz) {
     return new InstanceOfPredicate<>(clazz);
   }
 
@@ -216,7 +218,7 @@ public static Predicate<Class<?>> subtypeOf(Class<?> clazz) {
    *
    * @param target the collection that may contain the function input
    */
-  public static <T extends @Nullable Object> Predicate<T> in(Collection<? extends T> target) {
+  public static <T extends @Nullable @Readonly Object> Predicate<T> in(Collection<? extends T> target) {
     return new InPredicate<>(target);
   }
 
@@ -226,7 +228,7 @@ public static Predicate<Class<?>> subtypeOf(Class<?> clazz) {
    *
    * @return the composition of the provided function and predicate
    */
-  public static <A extends @Nullable Object, B extends @Nullable Object> Predicate<A> compose(
+  public static <A extends @Nullable @Readonly Object, B extends @Nullable @Readonly Object> Predicate<A> compose(
       Predicate<B> predicate, Function<A, ? extends B> function) {
     return new CompositionPredicate<>(predicate, function);
   }
@@ -310,13 +312,13 @@ public String toString() {
     };
 
     @SuppressWarnings("unchecked") // safe contravariant cast
-    <T extends @Nullable Object> Predicate<T> withNarrowedType() {
+    <T extends @Nullable @Readonly Object> Predicate<T> withNarrowedType() {
       return (Predicate<T>) this;
     }
   }
 
   /** @see Predicates#not(Predicate) */
-  private static class NotPredicate<T extends @Nullable Object>
+  private static class NotPredicate<T extends @Nullable @Readonly Object>
       implements Predicate<T>, Serializable {
     final Predicate<T> predicate;
 
@@ -355,7 +357,7 @@ public String toString() {
   }
 
   /** @see Predicates#and(Iterable) */
-  private static class AndPredicate<T extends @Nullable Object>
+  private static class AndPredicate<T extends @Nullable @Readonly Object>
       implements Predicate<T>, Serializable {
     private final List<? extends Predicate<? super T>> components;
 
@@ -401,7 +403,7 @@ public String toString() {
   }
 
   /** @see Predicates#or(Iterable) */
-  private static class OrPredicate<T extends @Nullable Object>
+  private static class OrPredicate<T extends @Nullable @Readonly Object>
       implements Predicate<T>, Serializable {
     private final List<? extends Predicate<? super T>> components;
 
@@ -497,14 +499,14 @@ public String toString() {
     private static final long serialVersionUID = 0;
 
     @SuppressWarnings("unchecked") // safe contravariant cast
-    <T extends @Nullable Object> Predicate<T> withNarrowedType() {
+    <T extends @Nullable @Readonly Object> Predicate<T> withNarrowedType() {
       return (Predicate<T>) this;
     }
   }
 
   /** @see Predicates#instanceOf(Class) */
   @GwtIncompatible // Class.isInstance
-  private static class InstanceOfPredicate<T extends @Nullable Object>
+  private static class InstanceOfPredicate<T extends @Nullable @Readonly Object>
       implements Predicate<T>, Serializable {
     private final Class<?> clazz;
 
@@ -579,7 +581,7 @@ public String toString() {
   }
 
   /** @see Predicates#in(Collection) */
-  private static class InPredicate<T extends @Nullable Object>
+  private static class InPredicate<T extends @Nullable @Readonly Object>
       implements Predicate<T>, Serializable {
     private final Collection<?> target;
 
@@ -622,7 +624,7 @@ public String toString() {
   }
 
   /** @see Predicates#compose(Predicate, Function) */
-  private static class CompositionPredicate<A extends @Nullable Object, B extends @Nullable Object>
+  private static class CompositionPredicate<A extends @Nullable @Readonly Object, B extends @Nullable @Readonly Object>
       implements Predicate<A>, Serializable {
     final Predicate<B> p;
     final Function<A, ? extends B> f;
@@ -727,7 +729,7 @@ public String toString() {
     private static final long serialVersionUID = 0;
   }
 
-  private static <T extends @Nullable Object> List<Predicate<? super T>> asList(
+  private static <T extends @Nullable @Readonly Object> List<Predicate<? super T>> asList(
       Predicate<? super T> first, Predicate<? super T> second) {
     // TODO(kevinb): understand why we still get a warning despite @SafeVarargs!
     return Arrays.<Predicate<? super T>>asList(first, second);
diff --git a/guava/src/com/google/common/base/Present.java b/guava/src/com/google/common/base/Present.java
index 60eef32d8398..282d96081620 100644
--- a/guava/src/com/google/common/base/Present.java
+++ b/guava/src/com/google/common/base/Present.java
@@ -27,6 +27,7 @@
 /** Implementation of an {@link Optional} containing a reference. */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class Present<T> extends Optional<T> {
   private final T reference;
 
diff --git a/guava/src/com/google/common/base/Splitter.java b/guava/src/com/google/common/base/Splitter.java
index cc606763956c..97f3fad82025 100644
--- a/guava/src/com/google/common/base/Splitter.java
+++ b/guava/src/com/google/common/base/Splitter.java
@@ -107,6 +107,7 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Splitter {
   private final CharMatcher trimmer;
   private final boolean omitEmptyStrings;
diff --git a/guava/src/com/google/common/base/Strings.java b/guava/src/com/google/common/base/Strings.java
index 7ac3abf8f2cd..9cfd7e33c852 100644
--- a/guava/src/com/google/common/base/Strings.java
+++ b/guava/src/com/google/common/base/Strings.java
@@ -28,6 +28,9 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.EnsuresNonNullIf;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 import org.checkerframework.framework.qual.EnsuresQualifierIf;
 
 /**
@@ -36,6 +39,7 @@
  * @author Kevin Bourrillion
  * @since 3.0
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
 public final class Strings {
@@ -153,6 +157,7 @@ public static String padEnd(String string, int minLength, char padChar) {
    */
   @InlineMe(replacement = "string.repeat(count)")
   @InlineMeValidationDisabled("Java 11+ API only")
+  @SuppressWarnings("pico:argument.type.incompatible") // cast from @Unique @Mutable to @Immutable
   public static String repeat(String string, @NonNegative int count) {
     checkNotNull(string); // eager for GWT.
 
@@ -186,7 +191,7 @@ public static String repeat(String string, @NonNegative int count) {
    *
    * @since 11.0
    */
-  public static String commonPrefix(CharSequence a, CharSequence b) {
+  public static String commonPrefix(@Readonly CharSequence a, @Readonly CharSequence b) {
     checkNotNull(a);
     checkNotNull(b);
 
@@ -209,7 +214,7 @@ public static String commonPrefix(CharSequence a, CharSequence b) {
    *
    * @since 11.0
    */
-  public static String commonSuffix(CharSequence a, CharSequence b) {
+  public static String commonSuffix(@Readonly CharSequence a, @Readonly CharSequence b) {
     checkNotNull(a);
     checkNotNull(b);
 
@@ -230,7 +235,7 @@ public static String commonSuffix(CharSequence a, CharSequence b) {
    * Out-of-range indexes return false.
    */
   @VisibleForTesting
-  static boolean validSurrogatePairAt(CharSequence string, int index) {
+  static boolean validSurrogatePairAt(@Readonly CharSequence string, int index) {
     return index >= 0
         && index <= (string.length() - 2)
         && Character.isHighSurrogate(string.charAt(index))
@@ -271,11 +276,11 @@ static boolean validSurrogatePairAt(CharSequence string, int index) {
    */
   // TODO(diamondm) consider using Arrays.toString() for array parameters
   public static String lenientFormat(
-      @CheckForNull String template, @CheckForNull @Nullable Object... args) {
+      @CheckForNull String template, @CheckForNull @Nullable @Readonly Object... args) {
     template = String.valueOf(template); // null -> "null"
 
     if (args == null) {
-      args = new Object[] {"(Object[])null"};
+      args = new @Immutable Object[] {"(Object[])null"};
     } else {
       for (int i = 0; i < args.length; i++) {
         args[i] = lenientToString(args[i]);
@@ -311,7 +316,7 @@ public static String lenientFormat(
     return builder.toString();
   }
 
-  private static String lenientToString(@CheckForNull Object o) {
+  private static String lenientToString(@CheckForNull @Readonly Object o) {
     if (o == null) {
       return "null";
     }
diff --git a/guava/src/com/google/common/base/Supplier.java b/guava/src/com/google/common/base/Supplier.java
index b0724803c200..7d2f780e2845 100644
--- a/guava/src/com/google/common/base/Supplier.java
+++ b/guava/src/com/google/common/base/Supplier.java
@@ -17,6 +17,8 @@
 import com.google.common.annotations.GwtCompatible;
 import com.google.errorprone.annotations.CanIgnoreReturnValue;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -41,7 +43,9 @@
 @GwtCompatible
 @FunctionalInterface
 @ElementTypesAreNonnullByDefault
-public interface Supplier<T extends @Nullable Object> extends java.util.function.Supplier<T> {
+@ReceiverDependentMutable
+@SuppressWarnings("pico")
+public interface Supplier<T extends @Nullable @Readonly Object> extends java.util.function.Supplier<T> {
   /**
    * Retrieves an instance of the appropriate type. The returned object may or may not be a new
    * instance, depending on the implementation.
diff --git a/guava/src/com/google/common/base/Suppliers.java b/guava/src/com/google/common/base/Suppliers.java
index 4b12eae90f45..5ed0f48fec12 100644
--- a/guava/src/com/google/common/base/Suppliers.java
+++ b/guava/src/com/google/common/base/Suppliers.java
@@ -40,6 +40,7 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Suppliers {
   private Suppliers() {}
 
diff --git a/guava/src/com/google/common/base/internal/Finalizer.java b/guava/src/com/google/common/base/internal/Finalizer.java
index 574d49526506..11968cd16d75 100644
--- a/guava/src/com/google/common/base/internal/Finalizer.java
+++ b/guava/src/com/google/common/base/internal/Finalizer.java
@@ -46,6 +46,7 @@
  * stop itself.
  */
 @AnnotatedFor({"nullness"})
+@SuppressWarnings("pico")
 // no @ElementTypesAreNonNullByDefault for the reasons discussed above
 public class Finalizer implements Runnable {
 
diff --git a/guava/src/com/google/common/cache/AbstractLoadingCache.java b/guava/src/com/google/common/cache/AbstractLoadingCache.java
index 489597c51843..6b81ade38075 100644
--- a/guava/src/com/google/common/cache/AbstractLoadingCache.java
+++ b/guava/src/com/google/common/cache/AbstractLoadingCache.java
@@ -39,6 +39,7 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class AbstractLoadingCache<K, V> extends AbstractCache<K, V>
     implements LoadingCache<K, V> {
 
diff --git a/guava/src/com/google/common/cache/Cache.java b/guava/src/com/google/common/cache/Cache.java
index 8755595a075d..b75d88360b84 100644
--- a/guava/src/com/google/common/cache/Cache.java
+++ b/guava/src/com/google/common/cache/Cache.java
@@ -27,6 +27,13 @@
 import java.util.concurrent.ExecutionException;
 import javax.annotation.CheckForNull;
 
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
+
 /**
  * A semi-persistent mapping from keys to values. Cache entries are manually added using {@link
  * #get(Object, Callable)} or {@link #put(Object, Object)}, and are stored in the cache until either
@@ -40,10 +47,12 @@
  * @author Charles Fry
  * @since 10.0
  */
+@AnnotatedFor("pico")
 @DoNotMock("Use CacheBuilder.newBuilder().build()")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public interface Cache<K, V> {
+@ReceiverDependentMutable
+public interface Cache<K extends @Immutable Object, V> {
 
   /**
    * Returns the value associated with {@code key} in this cache, or {@code null} if there is no
@@ -52,7 +61,7 @@ public interface Cache<K, V> {
    * @since 11.0
    */
   @CheckForNull
-  V getIfPresent(@CompatibleWith("K") Object key);
+  V getIfPresent(@Readonly Cache<K, V> this, @CompatibleWith("K") @Readonly Object key);
 
   /**
    * Returns the value associated with {@code key} in this cache, obtaining that value from {@code
@@ -100,7 +109,7 @@ public interface Cache<K, V> {
    * @throws ExecutionError if an error was thrown while loading the value
    * @since 11.0
    */
-  V get(K key, Callable<? extends V> loader) throws ExecutionException;
+  V get(@Readonly Cache<K, V> this, K key, Callable<? extends V> loader) throws ExecutionException;
 
   /**
    * Returns a map of the values associated with {@code keys} in this cache. The returned map will
@@ -112,7 +121,7 @@ public interface Cache<K, V> {
    * <? extends Object> is mostly the same as <?> to plain Java. But to nullness checkers, they
    * differ: <? extends Object> means "non-null types," while <?> means "all types."
    */
-  ImmutableMap<K, V> getAllPresent(Iterable<? extends Object> keys);
+  ImmutableMap<K, V> getAllPresent(@Readonly Cache<K, V> this, @Readonly Iterable<? extends Object> keys);
 
   /**
    * Associates {@code value} with {@code key} in this cache. If the cache previously contained a
@@ -123,7 +132,7 @@ public interface Cache<K, V> {
    *
    * @since 11.0
    */
-  void put(K key, V value);
+  void put(@Mutable Cache<K, V> this, K key, V value);
 
   /**
    * Copies all of the mappings from the specified map to the cache. The effect of this call is
@@ -133,10 +142,10 @@ public interface Cache<K, V> {
    *
    * @since 12.0
    */
-  void putAll(Map<? extends K, ? extends V> m);
+  void putAll(@Mutable Cache<K, V> this,  @Readonly Map<? extends K, ? extends V> m);
 
   /** Discards any cached value for key {@code key}. */
-  void invalidate(@CompatibleWith("K") Object key);
+  void invalidate(@Mutable Cache<K, V> this, @CompatibleWith("K") @Readonly Object key);
 
   /**
    * Discards any cached values for keys {@code keys}.
@@ -144,14 +153,14 @@ public interface Cache<K, V> {
    * @since 11.0
    */
   // For discussion of <? extends Object>, see getAllPresent.
-  void invalidateAll(Iterable<? extends Object> keys);
+  void invalidateAll(@Mutable Cache<K, V> this, @Readonly Iterable<? extends Object> keys);
 
   /** Discards all entries in the cache. */
-  void invalidateAll();
+  void invalidateAll(@Mutable Cache<K, V> this);
 
   /** Returns the approximate number of entries in this cache. */
   @CheckReturnValue
-  long size();
+  long size(@Readonly Cache<K, V> this);
 
   /**
    * Returns a current snapshot of this cache's cumulative statistics, or a set of default values if
@@ -165,7 +174,7 @@ public interface Cache<K, V> {
    *
    */
   @CheckReturnValue
-  CacheStats stats();
+  CacheStats stats(@Readonly Cache<K, V> this);
 
   /**
    * Returns a view of the entries stored in this cache as a thread-safe map. Modifications made to
@@ -176,11 +185,11 @@ public interface Cache<K, V> {
    * created, it is undefined which of the changes (if any) will be reflected in that iterator.
    */
   @CheckReturnValue
-  ConcurrentMap<K, V> asMap();
+  @PolyMutable ConcurrentMap<K, V> asMap(@PolyMutable Cache<K, V> this);
 
   /**
    * Performs any pending maintenance operations needed by the cache. Exactly which activities are
    * performed -- if any -- is implementation-dependent.
    */
-  void cleanUp();
+  void cleanUp(@Mutable Cache<K, V> this);
 }
diff --git a/guava/src/com/google/common/cache/CacheBuilder.java b/guava/src/com/google/common/cache/CacheBuilder.java
index 668769b6ecfa..09c19a142218 100644
--- a/guava/src/com/google/common/cache/CacheBuilder.java
+++ b/guava/src/com/google/common/cache/CacheBuilder.java
@@ -193,6 +193,7 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class CacheBuilder<K, V> {
   private static final int DEFAULT_INITIAL_CAPACITY = 16;
   private static final int DEFAULT_CONCURRENCY_LEVEL = 4;
diff --git a/guava/src/com/google/common/cache/CacheBuilderSpec.java b/guava/src/com/google/common/cache/CacheBuilderSpec.java
index b8447a38a001..de23b3ae976f 100644
--- a/guava/src/com/google/common/cache/CacheBuilderSpec.java
+++ b/guava/src/com/google/common/cache/CacheBuilderSpec.java
@@ -80,7 +80,7 @@
  * @author Adam Winer
  * @since 12.0
  */
-@SuppressWarnings("GoodTime") // lots of violations (nanosecond math)
+@SuppressWarnings({"GoodTime", "pico"}) // lots of violations (nanosecond math)
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
 public final class CacheBuilderSpec {
diff --git a/guava/src/com/google/common/cache/CacheLoader.java b/guava/src/com/google/common/cache/CacheLoader.java
index 7a5e017d03d4..ca67c3281cfd 100644
--- a/guava/src/com/google/common/cache/CacheLoader.java
+++ b/guava/src/com/google/common/cache/CacheLoader.java
@@ -56,6 +56,7 @@
  * @author Charles Fry
  * @since 10.0
  */
+@SuppressWarnings("pico")
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
 public abstract class CacheLoader<K, V> {
diff --git a/guava/src/com/google/common/cache/CacheStats.java b/guava/src/com/google/common/cache/CacheStats.java
index 4ed0854314be..9509f1bc0284 100644
--- a/guava/src/com/google/common/cache/CacheStats.java
+++ b/guava/src/com/google/common/cache/CacheStats.java
@@ -24,6 +24,7 @@
 import java.util.concurrent.Callable;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.checker.pico.qual.Immutable;
 
 /**
  * Statistics about the performance of a {@link Cache}. Instances of this class are immutable.
@@ -59,6 +60,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@Immutable
 public final class CacheStats {
   private final long hitCount;
   private final long missCount;
diff --git a/guava/src/com/google/common/cache/ForwardingCache.java b/guava/src/com/google/common/cache/ForwardingCache.java
index f118977b09a3..b0f923e5947d 100644
--- a/guava/src/com/google/common/cache/ForwardingCache.java
+++ b/guava/src/com/google/common/cache/ForwardingCache.java
@@ -24,6 +24,8 @@
 import java.util.concurrent.ExecutionException;
 import javax.annotation.CheckForNull;
 
+import org.checkerframework.checker.pico.qual.Immutable;
+
 /**
  * A cache which forwards all its method calls to another cache. Subclasses should override one or
  * more methods to modify the behavior of the backing cache as desired per the <a
@@ -34,7 +36,7 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingCache<K, V> extends ForwardingObject implements Cache<K, V> {
+public abstract class ForwardingCache<K extends @Immutable Object, V> extends ForwardingObject implements Cache<K, V> {
 
   /** Constructor for use by subclasses. */
   protected ForwardingCache() {}
@@ -120,7 +122,8 @@ public void cleanUp() {
    *
    * @since 10.0
    */
-  public abstract static class SimpleForwardingCache<K, V> extends ForwardingCache<K, V> {
+
+  public abstract static class SimpleForwardingCache<K extends @Immutable Object, V> extends ForwardingCache<K, V> {
     private final Cache<K, V> delegate;
 
     protected SimpleForwardingCache(Cache<K, V> delegate) {
diff --git a/guava/src/com/google/common/cache/ForwardingLoadingCache.java b/guava/src/com/google/common/cache/ForwardingLoadingCache.java
index ecd44ca8d8a9..f6da8aec6136 100644
--- a/guava/src/com/google/common/cache/ForwardingLoadingCache.java
+++ b/guava/src/com/google/common/cache/ForwardingLoadingCache.java
@@ -19,6 +19,9 @@
 import com.google.common.collect.ImmutableMap;
 import java.util.concurrent.ExecutionException;
 
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+
 /**
  * A cache which forwards all its method calls to another cache. Subclasses should override one or
  * more methods to modify the behavior of the backing cache as desired per the <a
@@ -32,7 +35,9 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingLoadingCache<K, V> extends ForwardingCache<K, V>
+@ReceiverDependentMutable
+@SuppressWarnings("pico")
+public abstract class ForwardingLoadingCache<K extends @Immutable Object, V> extends ForwardingCache<K, V>
     implements LoadingCache<K, V> {
 
   /** Constructor for use by subclasses. */
@@ -72,11 +77,12 @@ public void refresh(K key) {
    *
    * @since 10.0
    */
-  public abstract static class SimpleForwardingLoadingCache<K, V>
+  @ReceiverDependentMutable
+  public abstract static class SimpleForwardingLoadingCache<K extends @Immutable Object, V>
       extends ForwardingLoadingCache<K, V> {
     private final LoadingCache<K, V> delegate;
 
-    protected SimpleForwardingLoadingCache(LoadingCache<K, V> delegate) {
+    protected SimpleForwardingLoadingCache(@ReceiverDependentMutable LoadingCache<K, V> delegate) {
       this.delegate = Preconditions.checkNotNull(delegate);
     }
 
diff --git a/guava/src/com/google/common/cache/LoadingCache.java b/guava/src/com/google/common/cache/LoadingCache.java
index e338ac4c3733..3e19c5805cd0 100644
--- a/guava/src/com/google/common/cache/LoadingCache.java
+++ b/guava/src/com/google/common/cache/LoadingCache.java
@@ -22,6 +22,13 @@
 import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.ExecutionException;
 
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
+
 /**
  * A semi-persistent mapping from keys to values. Values are automatically loaded by the cache, and
  * are stored in the cache until either evicted or manually invalidated. The common way to build
@@ -38,9 +45,11 @@
  * @author Charles Fry
  * @since 11.0
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public interface LoadingCache<K, V> extends Cache<K, V>, Function<K, V> {
+@ReceiverDependentMutable
+public interface LoadingCache<K extends @Immutable Object, V> extends Cache<K, V>, Function<K, V> {
 
   /**
    * Returns the value associated with {@code key} in this cache, first loading that value if
@@ -67,7 +76,7 @@ public interface LoadingCache<K, V> extends Cache<K, V>, Function<K, V> {
    *     value
    * @throws ExecutionError if an error was thrown while loading the value
    */
-  V get(K key) throws ExecutionException;
+  V get(@Readonly LoadingCache<K, V> this, K key) throws ExecutionException;
 
   /**
    * Returns the value associated with {@code key} in this cache, first loading that value if
@@ -93,7 +102,7 @@ public interface LoadingCache<K, V> extends Cache<K, V>, Function<K, V> {
    *     explained in the last paragraph above, this should be an unchecked exception only.)
    * @throws ExecutionError if an error was thrown while loading the value
    */
-  V getUnchecked(K key);
+  V getUnchecked(@Readonly LoadingCache<K, V> this, K key);
 
   /**
    * Returns a map of the values associated with {@code keys}, creating or retrieving those values
@@ -119,7 +128,7 @@ public interface LoadingCache<K, V> extends Cache<K, V>, Function<K, V> {
    * @throws ExecutionError if an error was thrown while loading the values
    * @since 11.0
    */
-  ImmutableMap<K, V> getAll(Iterable<? extends K> keys) throws ExecutionException;
+  ImmutableMap<K, V> getAll(@Readonly LoadingCache<K, V> this, @Readonly Iterable<? extends K> keys) throws ExecutionException;
 
   /**
    * @deprecated Provided to satisfy the {@code Function} interface; use {@link #get} or {@link
@@ -130,7 +139,7 @@ public interface LoadingCache<K, V> extends Cache<K, V>, Function<K, V> {
    */
   @Deprecated
   @Override
-  V apply(K key);
+  V apply(@Readonly LoadingCache<K, V> this, K key);
 
   /**
    * Loads a new value for {@code key}, possibly asynchronously. While the new value is loading the
@@ -150,7 +159,7 @@ public interface LoadingCache<K, V> extends Cache<K, V>, Function<K, V> {
    *
    * @since 11.0
    */
-  void refresh(K key);
+  void refresh(@Mutable LoadingCache<K, V> this, K key);
 
   /**
    * {@inheritDoc}
@@ -159,5 +168,5 @@ public interface LoadingCache<K, V> extends Cache<K, V>, Function<K, V> {
    * cause entries to be automatically loaded.</b>
    */
   @Override
-  ConcurrentMap<K, V> asMap();
+  @PolyMutable ConcurrentMap<K, V> asMap(@PolyMutable LoadingCache<K, V> this);
 }
diff --git a/guava/src/com/google/common/cache/LocalCache.java b/guava/src/com/google/common/cache/LocalCache.java
index c9462c62a5c6..cef13fd596cf 100644
--- a/guava/src/com/google/common/cache/LocalCache.java
+++ b/guava/src/com/google/common/cache/LocalCache.java
@@ -89,6 +89,8 @@
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
@@ -105,10 +107,11 @@
 @SuppressWarnings({
   "GoodTime", // lots of violations (nanosecond math)
   "nullness", // too much trouble for the payoff
+        "pico"
 })
 @GwtCompatible(emulated = true)
 // TODO(cpovirk): Annotate for nullness.
-class LocalCache<K, V> extends AbstractMap<K, V> implements ConcurrentMap<K, V> {
+class LocalCache<K extends @Immutable Object, V> extends AbstractMap<K, V> implements ConcurrentMap<K, V> {
 
   /*
    * The basic strategy is to subdivide the table among Segments, each of which itself is a
@@ -403,7 +406,7 @@ Equivalence<Object> defaultEquivalence() {
     },
     SOFT {
       @Override
-      <K, V> ValueReference<K, V> referenceValue(
+      <K extends @Immutable Object, V> ValueReference<K, V> referenceValue(
           Segment<K, V> segment, ReferenceEntry<K, V> entry, V value, int weight) {
         return (weight == 1)
             ? new SoftValueReference<K, V>(segment.valueReferenceQueue, value, entry)
@@ -418,7 +421,7 @@ Equivalence<Object> defaultEquivalence() {
     },
     WEAK {
       @Override
-      <K, V> ValueReference<K, V> referenceValue(
+      <K extends @Immutable Object, V> ValueReference<K, V> referenceValue(
           Segment<K, V> segment, ReferenceEntry<K, V> entry, V value, int weight) {
         return (weight == 1)
             ? new WeakValueReference<K, V>(segment.valueReferenceQueue, value, entry)
@@ -427,13 +430,13 @@ <K, V> ValueReference<K, V> referenceValue(
       }
 
       @Override
-      Equivalence<Object> defaultEquivalence() {
+      Equivalence<@Readonly Object> defaultEquivalence() {
         return Equivalence.identity();
       }
     };
 
     /** Creates a reference for the given value according to this value strength. */
-    abstract <K, V> ValueReference<K, V> referenceValue(
+    abstract <K extends @Immutable Object, V> ValueReference<K, V> referenceValue(
         Segment<K, V> segment, ReferenceEntry<K, V> entry, V value, int weight);
 
     /**
@@ -441,27 +444,27 @@ abstract <K, V> ValueReference<K, V> referenceValue(
      * at this strength. This strategy will be used unless the user explicitly specifies an
      * alternate strategy.
      */
-    abstract Equivalence<Object> defaultEquivalence();
+    abstract Equivalence<@Readonly Object> defaultEquivalence();
   }
 
   /** Creates new entries. */
   enum EntryFactory {
     STRONG {
       @Override
-      <K, V> ReferenceEntry<K, V> newEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> newEntry(
           Segment<K, V> segment, K key, int hash, @Nullable ReferenceEntry<K, V> next) {
         return new StrongEntry<>(key, hash, next);
       }
     },
     STRONG_ACCESS {
       @Override
-      <K, V> ReferenceEntry<K, V> newEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> newEntry(
           Segment<K, V> segment, K key, int hash, @Nullable ReferenceEntry<K, V> next) {
         return new StrongAccessEntry<>(key, hash, next);
       }
 
       @Override
-      <K, V> ReferenceEntry<K, V> copyEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> copyEntry(
           Segment<K, V> segment, ReferenceEntry<K, V> original, ReferenceEntry<K, V> newNext) {
         ReferenceEntry<K, V> newEntry = super.copyEntry(segment, original, newNext);
         copyAccessEntry(original, newEntry);
@@ -470,13 +473,13 @@ <K, V> ReferenceEntry<K, V> copyEntry(
     },
     STRONG_WRITE {
       @Override
-      <K, V> ReferenceEntry<K, V> newEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> newEntry(
           Segment<K, V> segment, K key, int hash, @Nullable ReferenceEntry<K, V> next) {
         return new StrongWriteEntry<>(key, hash, next);
       }
 
       @Override
-      <K, V> ReferenceEntry<K, V> copyEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> copyEntry(
           Segment<K, V> segment, ReferenceEntry<K, V> original, ReferenceEntry<K, V> newNext) {
         ReferenceEntry<K, V> newEntry = super.copyEntry(segment, original, newNext);
         copyWriteEntry(original, newEntry);
@@ -485,13 +488,13 @@ <K, V> ReferenceEntry<K, V> copyEntry(
     },
     STRONG_ACCESS_WRITE {
       @Override
-      <K, V> ReferenceEntry<K, V> newEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> newEntry(
           Segment<K, V> segment, K key, int hash, @Nullable ReferenceEntry<K, V> next) {
         return new StrongAccessWriteEntry<>(key, hash, next);
       }
 
       @Override
-      <K, V> ReferenceEntry<K, V> copyEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> copyEntry(
           Segment<K, V> segment, ReferenceEntry<K, V> original, ReferenceEntry<K, V> newNext) {
         ReferenceEntry<K, V> newEntry = super.copyEntry(segment, original, newNext);
         copyAccessEntry(original, newEntry);
@@ -501,20 +504,20 @@ <K, V> ReferenceEntry<K, V> copyEntry(
     },
     WEAK {
       @Override
-      <K, V> ReferenceEntry<K, V> newEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> newEntry(
           Segment<K, V> segment, K key, int hash, @Nullable ReferenceEntry<K, V> next) {
         return new WeakEntry<>(segment.keyReferenceQueue, key, hash, next);
       }
     },
     WEAK_ACCESS {
       @Override
-      <K, V> ReferenceEntry<K, V> newEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> newEntry(
           Segment<K, V> segment, K key, int hash, @Nullable ReferenceEntry<K, V> next) {
         return new WeakAccessEntry<>(segment.keyReferenceQueue, key, hash, next);
       }
 
       @Override
-      <K, V> ReferenceEntry<K, V> copyEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> copyEntry(
           Segment<K, V> segment, ReferenceEntry<K, V> original, ReferenceEntry<K, V> newNext) {
         ReferenceEntry<K, V> newEntry = super.copyEntry(segment, original, newNext);
         copyAccessEntry(original, newEntry);
@@ -523,13 +526,13 @@ <K, V> ReferenceEntry<K, V> copyEntry(
     },
     WEAK_WRITE {
       @Override
-      <K, V> ReferenceEntry<K, V> newEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> newEntry(
           Segment<K, V> segment, K key, int hash, @Nullable ReferenceEntry<K, V> next) {
         return new WeakWriteEntry<>(segment.keyReferenceQueue, key, hash, next);
       }
 
       @Override
-      <K, V> ReferenceEntry<K, V> copyEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> copyEntry(
           Segment<K, V> segment, ReferenceEntry<K, V> original, ReferenceEntry<K, V> newNext) {
         ReferenceEntry<K, V> newEntry = super.copyEntry(segment, original, newNext);
         copyWriteEntry(original, newEntry);
@@ -538,13 +541,13 @@ <K, V> ReferenceEntry<K, V> copyEntry(
     },
     WEAK_ACCESS_WRITE {
       @Override
-      <K, V> ReferenceEntry<K, V> newEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> newEntry(
           Segment<K, V> segment, K key, int hash, @Nullable ReferenceEntry<K, V> next) {
         return new WeakAccessWriteEntry<>(segment.keyReferenceQueue, key, hash, next);
       }
 
       @Override
-      <K, V> ReferenceEntry<K, V> copyEntry(
+      <K extends @Immutable Object, V> ReferenceEntry<K, V> copyEntry(
           Segment<K, V> segment, ReferenceEntry<K, V> original, ReferenceEntry<K, V> newNext) {
         ReferenceEntry<K, V> newEntry = super.copyEntry(segment, original, newNext);
         copyAccessEntry(original, newEntry);
@@ -588,7 +591,7 @@ static EntryFactory getFactory(
      * @param hash of the key
      * @param next entry in the same bucket
      */
-    abstract <K, V> ReferenceEntry<K, V> newEntry(
+    abstract <K extends @Immutable Object, V> ReferenceEntry<K, V> newEntry(
         Segment<K, V> segment, K key, int hash, @Nullable ReferenceEntry<K, V> next);
 
     /**
@@ -598,13 +601,13 @@ abstract <K, V> ReferenceEntry<K, V> newEntry(
      * @param newNext entry in the same bucket
      */
     // Guarded By Segment.this
-    <K, V> ReferenceEntry<K, V> copyEntry(
+    <K extends @Immutable Object, V> ReferenceEntry<K, V> copyEntry(
         Segment<K, V> segment, ReferenceEntry<K, V> original, ReferenceEntry<K, V> newNext) {
       return newEntry(segment, original.getKey(), original.getHash(), newNext);
     }
 
     // Guarded By Segment.this
-    <K, V> void copyAccessEntry(ReferenceEntry<K, V> original, ReferenceEntry<K, V> newEntry) {
+    <K extends @Immutable Object, V> void copyAccessEntry(ReferenceEntry<K, V> original, ReferenceEntry<K, V> newEntry) {
       // TODO(fry): when we link values instead of entries this method can go
       // away, as can connectAccessOrder, nullifyAccessOrder.
       newEntry.setAccessTime(original.getAccessTime());
@@ -616,7 +619,7 @@ <K, V> void copyAccessEntry(ReferenceEntry<K, V> original, ReferenceEntry<K, V>
     }
 
     // Guarded By Segment.this
-    <K, V> void copyWriteEntry(ReferenceEntry<K, V> original, ReferenceEntry<K, V> newEntry) {
+    <K extends @Immutable Object, V> void copyWriteEntry(ReferenceEntry<K, V> original, ReferenceEntry<K, V> newEntry) {
       // TODO(fry): when we link values instead of entries this method can go
       // away, as can connectWriteOrder, nullifyWriteOrder.
       newEntry.setWriteTime(original.getWriteTime());
@@ -629,7 +632,7 @@ <K, V> void copyWriteEntry(ReferenceEntry<K, V> original, ReferenceEntry<K, V> n
   }
 
   /** A reference to a value. */
-  interface ValueReference<K, V> {
+  interface ValueReference<K extends @Immutable Object, V> {
     /** Returns the value. Does not block or throw exceptions. */
     @Nullable
     V get();
@@ -685,8 +688,8 @@ ValueReference<K, V> copyFor(
   }
 
   /** Placeholder. Indicates that the value hasn't been set yet. */
-  static final ValueReference<Object, Object> UNSET =
-      new ValueReference<Object, Object>() {
+  static final ValueReference<@Immutable Object, @Readonly Object> UNSET =
+      new ValueReference<@Immutable Object, @Readonly Object>() {
         @Override
         public Object get() {
           return null;
@@ -1497,7 +1500,7 @@ public V waitForValue() {
   }
 
   /** References a soft value. */
-  static class SoftValueReference<K, V> extends SoftReference<V> implements ValueReference<K, V> {
+  static class SoftValueReference<K extends @Immutable Object, V> extends SoftReference<V> implements ValueReference<K, V> {
     final ReferenceEntry<K, V> entry;
 
     SoftValueReference(ReferenceQueue<V> queue, V referent, ReferenceEntry<K, V> entry) {
@@ -1835,7 +1838,7 @@ final Segment<K, V>[] newSegmentArray(int ssize) {
    * opportunistically, just to simplify some locking and avoid separate construction.
    */
   @SuppressWarnings("serial") // This class is never serialized.
-  static class Segment<K, V> extends ReentrantLock {
+  static class Segment<K extends @Immutable Object, V> extends ReentrantLock {
 
     /*
      * TODO(fry): Consider copying variables (like evictsBySize) from outer class into this class.
diff --git a/guava/src/com/google/common/cache/ReferenceEntry.java b/guava/src/com/google/common/cache/ReferenceEntry.java
index 8ff2e6c9b4ff..1f52ae7027f0 100644
--- a/guava/src/com/google/common/cache/ReferenceEntry.java
+++ b/guava/src/com/google/common/cache/ReferenceEntry.java
@@ -40,6 +40,7 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 interface ReferenceEntry<K, V> {
   /** Returns the value reference from this entry. */
   @CheckForNull
diff --git a/guava/src/com/google/common/cache/RemovalNotification.java b/guava/src/com/google/common/cache/RemovalNotification.java
index b96fc570911f..dabb0f7c3d77 100644
--- a/guava/src/com/google/common/cache/RemovalNotification.java
+++ b/guava/src/com/google/common/cache/RemovalNotification.java
@@ -34,6 +34,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class RemovalNotification<K, V>
     extends SimpleImmutableEntry<@Nullable K, @Nullable V> {
   private final RemovalCause cause;
diff --git a/guava/src/com/google/common/cache/Striped64.java b/guava/src/com/google/common/cache/Striped64.java
index 0d2d75b9f384..be63673d8963 100644
--- a/guava/src/com/google/common/cache/Striped64.java
+++ b/guava/src/com/google/common/cache/Striped64.java
@@ -23,6 +23,7 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 abstract class Striped64 extends Number {
   /*
    * This class maintains a lazily-initialized table of atomically
diff --git a/guava/src/com/google/common/collect/AbstractBiMap.java b/guava/src/com/google/common/collect/AbstractBiMap.java
index 2461e956cf30..45ceecd59374 100644
--- a/guava/src/com/google/common/collect/AbstractBiMap.java
+++ b/guava/src/com/google/common/collect/AbstractBiMap.java
@@ -36,9 +36,17 @@
 import java.util.Set;
 import java.util.function.BiFunction;
 import javax.annotation.CheckForNull;
+
+import org.checkerframework.checker.initialization.qual.UnderInitialization;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
@@ -55,42 +63,43 @@
  * @author Kevin Bourrillion
  * @author Mike Bostock
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-abstract class AbstractBiMap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+abstract class AbstractBiMap<K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
     extends ForwardingMap<K, V> implements BiMap<K, V>, Serializable {
 
   private transient Map<K, V> delegate;
   @RetainedWith transient AbstractBiMap<V, K> inverse;
 
   /** Package-private constructor for creating a map-backed bimap. */
-  AbstractBiMap(Map<K, V> forward, Map<V, K> backward) {
+  AbstractBiMap(@ReceiverDependentMutable Map<K, V> forward, @ReceiverDependentMutable Map<V, K> backward) {
     setDelegates(forward, backward);
   }
 
   /** Private constructor for inverse bimap. */
-  private AbstractBiMap(Map<K, V> backward, AbstractBiMap<V, K> forward) {
+  private AbstractBiMap(@ReceiverDependentMutable Map<K, V> backward, @ReceiverDependentMutable AbstractBiMap<V, K> forward) {
     delegate = backward;
     inverse = forward;
   }
 
   @Override
-  protected Map<K, V> delegate() {
+  protected @PolyMutable Map<K, V> delegate(@PolyMutable AbstractBiMap<K,V> this) {
     return delegate;
   }
 
   /** Returns its input, or throws an exception if this is not a valid key. */
   @CanIgnoreReturnValue
   @ParametricNullness
-  K checkKey(@ParametricNullness K key) {
+  K checkKey(@Readonly AbstractBiMap<K,V> this,  @ParametricNullness K key) {
     return key;
   }
 
   /** Returns its input, or throws an exception if this is not a valid value. */
   @CanIgnoreReturnValue
   @ParametricNullness
-  V checkValue(@ParametricNullness V value) {
+  V checkValue(@Readonly AbstractBiMap<K,V> this, @ParametricNullness V value) {
     return value;
   }
 
@@ -98,7 +107,7 @@ V checkValue(@ParametricNullness V value) {
    * Specifies the delegate maps going in each direction. Called by the constructor and by
    * subclasses during deserialization.
    */
-  void setDelegates(Map<K, V> forward, Map<V, K> backward) {
+  void setDelegates(@UnderInitialization AbstractBiMap<K, V> this, @ReceiverDependentMutable Map<K, V> forward, @ReceiverDependentMutable Map<V, K> backward) {
     checkState(delegate == null);
     checkState(inverse == null);
     checkArgument(forward.isEmpty());
@@ -108,11 +117,11 @@ void setDelegates(Map<K, V> forward, Map<V, K> backward) {
     inverse = makeInverse(backward);
   }
 
-  AbstractBiMap<V, K> makeInverse(Map<V, K> backward) {
-    return new Inverse<>(backward, this);
+  @ReceiverDependentMutable AbstractBiMap<V, K> makeInverse(@ReceiverDependentMutable Map<V, K> backward) {
+    return new @ReceiverDependentMutable Inverse<>(backward, this);
   }
 
-  void setInverse(AbstractBiMap<V, K> inverse) {
+  void setInverse(@UnderInitialization AbstractBiMap<K, V> this, @ReceiverDependentMutable AbstractBiMap<V, K> inverse) {
     this.inverse = inverse;
   }
 
@@ -120,7 +129,7 @@ void setInverse(AbstractBiMap<V, K> inverse) {
 
   @Pure
   @Override
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@Readonly AbstractBiMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
     return inverse.containsKey(value);
   }
 
@@ -129,19 +138,19 @@ public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V put(@ParametricNullness K key, @ParametricNullness V value) {
+  public V put(@Mutable AbstractBiMap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
     return putInBothMaps(key, value, false);
   }
 
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V forcePut(@ParametricNullness K key, @ParametricNullness V value) {
+  public V forcePut(@Mutable AbstractBiMap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
     return putInBothMaps(key, value, true);
   }
 
   @CheckForNull
-  private V putInBothMaps(@ParametricNullness K key, @ParametricNullness V value, boolean force) {
+  private V putInBothMaps(@Mutable AbstractBiMap<K, V> this, @ParametricNullness K key, @ParametricNullness V value, boolean force) {
     checkKey(key);
     checkValue(value);
     boolean containedKey = containsKey(key);
@@ -159,6 +168,7 @@ private V putInBothMaps(@ParametricNullness K key, @ParametricNullness V value,
   }
 
   private void updateInverseMap(
+          @Mutable AbstractBiMap<K, V> this,
       @ParametricNullness K key,
       boolean containedKey,
       @CheckForNull V oldValue,
@@ -173,34 +183,34 @@ private void updateInverseMap(
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V remove(@CheckForNull @UnknownSignedness Object key) {
+  public V remove(@Mutable AbstractBiMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     return containsKey(key) ? removeFromBothMaps(key) : null;
   }
 
   @CanIgnoreReturnValue
   @ParametricNullness
-  private V removeFromBothMaps(@CheckForNull Object key) {
+  private V removeFromBothMaps(@Mutable AbstractBiMap<K, V> this, @CheckForNull @Readonly Object key) {
     // The cast is safe because the callers of this method first check that the key is present.
     V oldValue = uncheckedCastNullableTToT(delegate.remove(key));
     removeFromInverseMap(oldValue);
     return oldValue;
   }
 
-  private void removeFromInverseMap(@ParametricNullness V oldValue) {
+  private void removeFromInverseMap(@Mutable AbstractBiMap<K, V> this, @ParametricNullness V oldValue) {
     inverse.delegate.remove(oldValue);
   }
 
   // Bulk Operations
 
   @Override
-  public void putAll(Map<? extends K, ? extends V> map) {
+  public void putAll(@Mutable AbstractBiMap<K, V> this, @Readonly Map<? extends K, ? extends V> map) {
     for (Entry<? extends K, ? extends V> entry : map.entrySet()) {
       put(entry.getKey(), entry.getValue());
     }
   }
 
   @Override
-  public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
+  public void replaceAll(@Mutable AbstractBiMap<K, V> this, BiFunction<? super K, ? super V, ? extends V> function) {
     this.delegate.replaceAll(function);
     inverse.delegate.clear();
     Entry<K, V> broken = null;
@@ -223,7 +233,7 @@ public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable AbstractBiMap<K, V> this) {
     delegate.clear();
     inverse.delegate.clear();
   }
@@ -231,33 +241,35 @@ public void clear() {
   // Views
 
   @Override
-  public BiMap<V, K> inverse() {
+  public @PolyMutable BiMap<V, K> inverse(@PolyMutable AbstractBiMap<K, V> this) {
     return inverse;
   }
 
-  @CheckForNull private transient Set<K> keySet;
+  @CFComment("Change to @LazyFinal later")
+  @CheckForNull private transient @Assignable Set<K> keySet;
 
   @SideEffectFree
   @Override
-  public Set<@KeyFor({"this"}) K> keySet() {
+  public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable AbstractBiMap<K, V> this) {
     Set<K> result = keySet;
     return (result == null) ? keySet = new KeySet() : result;
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   private class KeySet extends ForwardingSet<K> {
     @Override
-    protected Set<K> delegate() {
+    protected @PolyMutable Set<K> delegate(@PolyMutable KeySet this) {
       return delegate.keySet();
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable KeySet this) {
       AbstractBiMap.this.clear();
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object key) {
+    public boolean remove(@Mutable KeySet this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       if (!contains(key)) {
         return false;
       }
@@ -266,26 +278,27 @@ public boolean remove(@CheckForNull @UnknownSignedness Object key) {
     }
 
     @Override
-    public boolean removeAll(Collection<?> keysToRemove) {
+    public boolean removeAll(@Mutable KeySet this, @Readonly Collection<?> keysToRemove) {
       return standardRemoveAll(keysToRemove);
     }
 
     @Override
-    public boolean retainAll(Collection<?> keysToRetain) {
+    public boolean retainAll(@Mutable KeySet this, @Readonly Collection<?> keysToRetain) {
       return standardRetainAll(keysToRetain);
     }
 
     @Override
-    public Iterator<K> iterator() {
+    public Iterator<K> iterator(@Readonly KeySet this) {
       return Maps.keyIterator(entrySet().iterator());
     }
   }
 
-  @CheckForNull private transient Set<V> valueSet;
+  @CFComment("Change to @LazyFinal later")
+  @CheckForNull private transient @Assignable Set<V> valueSet;
 
   @SideEffectFree
   @Override
-  public Set<V> values() {
+  public @PolyMutable Set<V> values(@PolyMutable AbstractBiMap<K, V> this) {
     /*
      * We can almost reuse the inverse's keySet, except we have to fix the
      * iteration order so that it is consistent with the forward map.
@@ -295,16 +308,17 @@ public Set<V> values() {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   private class ValueSet extends ForwardingSet<V> {
     final Set<V> valuesDelegate = inverse.keySet();
 
     @Override
-    protected Set<V> delegate() {
+    protected @PolyMutable Set<V> delegate(@PolyMutable ValueSet this) {
       return valuesDelegate;
     }
 
     @Override
-    public Iterator<V> iterator() {
+    public Iterator<V> iterator(@Readonly ValueSet this) {
       return Maps.valueIterator(entrySet().iterator());
     }
 
@@ -316,7 +330,7 @@ public Iterator<V> iterator() {
 
     @Override
     @SuppressWarnings("nullness") // bug in our checker's handling of toArray signatures
-    public <T extends @Nullable @UnknownSignedness Object> T[] toArray(T[] array) {
+    public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(T[] array) {
       return standardToArray(array);
     }
 
@@ -327,29 +341,31 @@ public String toString() {
     }
   }
 
-  @CheckForNull private transient Set<Entry<K, V>> entrySet;
+  @CFComment("Change to @LazyFinal later")
+  @CheckForNull private transient @Assignable Set<Entry<K, V>> entrySet;
 
   @SideEffectFree
   @Override
-  public Set<Entry<@KeyFor({"this"}) K, V>> entrySet() {
+  public @PolyMutable Set<Entry<@KeyFor({"this"}) K, V>> entrySet(@PolyMutable AbstractBiMap<K, V> this) {
     Set<Entry<K, V>> result = entrySet;
     return (result == null) ? entrySet = new EntrySet() : result;
   }
 
+  @ReceiverDependentMutable
   class BiMapEntry extends ForwardingMapEntry<K, V> {
     private final Entry<K, V> delegate;
 
-    BiMapEntry(Entry<K, V> delegate) {
+    BiMapEntry(@ReceiverDependentMutable Entry<K, V> delegate) {
       this.delegate = delegate;
     }
 
     @Override
-    protected Entry<K, V> delegate() {
+    protected @PolyMutable Entry<K, V> delegate(@PolyMutable BiMapEntry this) {
       return delegate;
     }
 
     @Override
-    public V setValue(V value) {
+    public V setValue(@Mutable BiMapEntry this, V value) {
       checkValue(value);
       // Preconditions keep the map and inverse consistent.
       checkState(entrySet().contains(this), "entry no longer in map");
@@ -365,7 +381,7 @@ public V setValue(V value) {
     }
   }
 
-  Iterator<Entry<K, V>> entrySetIterator() {
+  Iterator<Entry<K, V>> entrySetIterator(@Readonly AbstractBiMap<K, V> this) {
     final Iterator<Entry<K, V>> iterator = delegate.entrySet().iterator();
     return new Iterator<Entry<K, V>>() {
       @CheckForNull Entry<K, V> entry;
@@ -395,21 +411,22 @@ public void remove() {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   private class EntrySet extends ForwardingSet<Entry<K, V>> {
     final Set<Entry<K, V>> esDelegate = delegate.entrySet();
 
     @Override
-    protected Set<Entry<K, V>> delegate() {
+    protected Set<Entry<K, V>> delegate(@PolyMutable EntrySet this) {
       return esDelegate;
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable EntrySet this) {
       AbstractBiMap.this.clear();
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object object) {
+    public boolean remove(@Mutable EntrySet this,  @CheckForNull @UnknownSignedness @Readonly Object object) {
       /*
        * `o instanceof Entry` is guaranteed by `contains`, but we check it here to satisfy our
        * nullness checker.
@@ -430,7 +447,7 @@ public boolean remove(@CheckForNull @UnknownSignedness Object object) {
     }
 
     @Override
-    public Iterator<Entry<K, V>> iterator() {
+    public Iterator<Entry<K, V>> iterator(@Readonly EntrySet this) {
       return entrySetIterator();
     }
 
@@ -451,37 +468,38 @@ public Iterator<Entry<K, V>> iterator() {
 
     @Override
     @SuppressWarnings("nullness") // bug in our checker's handling of toArray signatures
-    public <T extends @Nullable @UnknownSignedness Object> T[] toArray(T[] array) {
+    public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(T[] array) {
       return standardToArray(array);
     }
 
     @Pure
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly EntrySet this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       return Maps.containsEntryImpl(delegate(), o);
     }
 
     @Pure
     @Override
-    public boolean containsAll(Collection<?> c) {
+    public boolean containsAll(@Readonly EntrySet this, @Readonly Collection<?> c) {
       return standardContainsAll(c);
     }
 
     @Override
-    public boolean removeAll(Collection<?> c) {
+    public boolean removeAll(@Mutable EntrySet this, @Readonly Collection<?> c) {
       return standardRemoveAll(c);
     }
 
     @Override
-    public boolean retainAll(Collection<?> c) {
+    public boolean retainAll(@Mutable EntrySet this, @Readonly Collection<?> c) {
       return standardRetainAll(c);
     }
   }
 
   /** The inverse of any other {@code AbstractBiMap} subclass. */
-  static class Inverse<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class Inverse<K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
       extends AbstractBiMap<K, V> {
-    Inverse(Map<K, V> backward, AbstractBiMap<V, K> forward) {
+    Inverse(@ReceiverDependentMutable Map<K, V> backward, @ReceiverDependentMutable AbstractBiMap<V, K> forward) {
       super(backward, forward);
     }
 
@@ -496,13 +514,13 @@ static class Inverse<K extends @Nullable Object, V extends @Nullable Object>
 
     @Override
     @ParametricNullness
-    K checkKey(@ParametricNullness K key) {
+    K checkKey(@Readonly Inverse<K, V> this, @ParametricNullness K key) {
       return inverse.checkValue(key);
     }
 
     @Override
     @ParametricNullness
-    V checkValue(@ParametricNullness V value) {
+    V checkValue(@Readonly Inverse<K, V> this, @ParametricNullness V value) {
       return inverse.checkKey(value);
     }
 
diff --git a/guava/src/com/google/common/collect/AbstractIndexedListIterator.java b/guava/src/com/google/common/collect/AbstractIndexedListIterator.java
index b4872137b70d..8751325996fc 100644
--- a/guava/src/com/google/common/collect/AbstractIndexedListIterator.java
+++ b/guava/src/com/google/common/collect/AbstractIndexedListIterator.java
@@ -23,6 +23,11 @@
 import java.util.NoSuchElementException;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * This class provides a skeletal implementation of the {@link ListIterator} interface across a
@@ -31,16 +36,19 @@
  *
  * @author Jared Levy
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class AbstractIndexedListIterator<E extends @Nullable Object>
+@CFComment("AOSEN: Is this a design issue?")
+@ReceiverDependentMutable
+abstract class AbstractIndexedListIterator<E extends @Nullable @Readonly Object>
     extends UnmodifiableListIterator<E> {
   private final int size;
   private int position;
 
   /** Returns the element with the specified index. This method is called by {@link #next()}. */
   @ParametricNullness
-  protected abstract E get(int index);
+  protected abstract E get(@Readonly AbstractIndexedListIterator<E> this, int index);
 
   /**
    * Constructs an iterator across a sequence of the given size whose initial position is 0. That
@@ -70,13 +78,13 @@ protected AbstractIndexedListIterator(int size, int position) {
   }
 
   @Override
-  public final boolean hasNext() {
+  public final boolean hasNext(@Readonly AbstractIndexedListIterator<E> this) {
     return position < size;
   }
 
   @Override
   @ParametricNullness
-  public final E next() {
+  public final E next(@Mutable AbstractIndexedListIterator<E> this) {
     if (!hasNext()) {
       throw new NoSuchElementException();
     }
@@ -84,18 +92,18 @@ public final E next() {
   }
 
   @Override
-  public final @NonNegative int nextIndex() {
+  public final @NonNegative int nextIndex(@Readonly AbstractIndexedListIterator<E> this) {
     return position;
   }
 
   @Override
-  public final boolean hasPrevious() {
+  public final boolean hasPrevious(@Readonly AbstractIndexedListIterator<E> this) {
     return position > 0;
   }
 
   @Override
   @ParametricNullness
-  public final E previous() {
+  public final E previous(@Mutable AbstractIndexedListIterator<E> this) {
     if (!hasPrevious()) {
       throw new NoSuchElementException();
     }
@@ -103,7 +111,7 @@ public final E previous() {
   }
 
   @Override
-  public final @NonNegative int previousIndex() {
+  public final @NonNegative int previousIndex(@Readonly AbstractIndexedListIterator<E> this) {
     return position - 1;
   }
 }
diff --git a/guava/src/com/google/common/collect/AbstractIterator.java b/guava/src/com/google/common/collect/AbstractIterator.java
index 1db85d67351a..3b67474b1d81 100644
--- a/guava/src/com/google/common/collect/AbstractIterator.java
+++ b/guava/src/com/google/common/collect/AbstractIterator.java
@@ -24,7 +24,11 @@
 import java.util.NoSuchElementException;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * This class provides a skeletal implementation of the {@code Iterator} interface, to make this
@@ -63,10 +67,12 @@
  */
 // When making changes to this class, please also update the copy at
 // com.google.common.base.AbstractIterator
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class AbstractIterator<T extends @Nullable Object> extends UnmodifiableIterator<T> {
+@CFComment("AOSEN: Is this a design issue?")
+@ReceiverDependentMutable
+public abstract class AbstractIterator<T extends @Nullable @Readonly Object> extends UnmodifiableIterator<T> {
   private State state = State.NOT_READY;
 
   /** Constructor for use by subclasses. */
@@ -113,7 +119,7 @@ private enum State {
    *     IllegalStateException}.
    */
   @CheckForNull
-  protected abstract T computeNext();
+  protected abstract T computeNext(@Mutable AbstractIterator<T> this);
 
   /**
    * Implementations of {@link #computeNext} <b>must</b> invoke this method when there are no
@@ -124,14 +130,14 @@ private enum State {
    */
   @CanIgnoreReturnValue
   @CheckForNull
-  protected final T endOfData() {
+  protected final T endOfData(@Mutable AbstractIterator<T> this) {
     state = State.DONE;
     return null;
   }
 
   @CanIgnoreReturnValue // TODO(kak): Should we remove this? Some people are using it to prefetch?
   @Override
-  public final boolean hasNext() {
+  public final boolean hasNext(@Readonly AbstractIterator<T> this) {
     checkState(state != State.FAILED);
     switch (state) {
       case DONE:
@@ -143,7 +149,7 @@ public final boolean hasNext() {
     return tryToComputeNext();
   }
 
-  private boolean tryToComputeNext() {
+  private boolean tryToComputeNext(@Mutable AbstractIterator<T> this) {
     state = State.FAILED; // temporary pessimism
     next = computeNext();
     if (state != State.DONE) {
@@ -156,7 +162,7 @@ private boolean tryToComputeNext() {
   @CanIgnoreReturnValue // TODO(kak): Should we remove this?
   @Override
   @ParametricNullness
-  public final T next() {
+  public final T next(@Mutable AbstractIterator<T> this) {
     if (!hasNext()) {
       throw new NoSuchElementException();
     }
@@ -175,7 +181,7 @@ public final T next() {
    * implement {@code PeekingIterator}.
    */
   @ParametricNullness
-  public final T peek() {
+  public final T peek(@Readonly AbstractIterator<T> this) {
     if (!hasNext()) {
       throw new NoSuchElementException();
     }
diff --git a/guava/src/com/google/common/collect/AbstractListMultimap.java b/guava/src/com/google/common/collect/AbstractListMultimap.java
index 35cb3322fbe1..628b8b48a751 100644
--- a/guava/src/com/google/common/collect/AbstractListMultimap.java
+++ b/guava/src/com/google/common/collect/AbstractListMultimap.java
@@ -24,6 +24,11 @@
 import java.util.Map;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -38,14 +43,15 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class AbstractListMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+abstract class AbstractListMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractMapBasedMultimap<K, V> implements ListMultimap<K, V> {
   /**
    * Creates a new multimap that uses the provided map.
    *
    * @param map place to store the mapping from each key to its corresponding values
    */
-  protected AbstractListMultimap(Map<K, Collection<V>> map) {
+  protected AbstractListMultimap(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map) {
     super(map);
   }
 
@@ -53,12 +59,12 @@ protected AbstractListMultimap(Map<K, Collection<V>> map) {
   abstract List<V> createCollection();
 
   @Override
-  List<V> createUnmodifiableEmptyCollection() {
+  @Immutable List<V> createUnmodifiableEmptyCollection() {
     return Collections.emptyList();
   }
 
   @Override
-  <E extends @Nullable Object> Collection<E> unmodifiableCollectionSubclass(
+  <E extends @Nullable @Readonly Object> @Immutable Collection<E> unmodifiableCollectionSubclass(
       Collection<E> collection) {
     return Collections.unmodifiableList((List<E>) collection);
   }
@@ -78,8 +84,8 @@ Collection<V> wrapCollection(@ParametricNullness K key, Collection<V> collection
    * Multimap} interface.
    */
   @Override
-  public List<V> get(@ParametricNullness K key) {
-    return (List<V>) super.get(key);
+  public @PolyMutable List<V> get(@PolyMutable AbstractListMultimap<K,V> this, @ParametricNullness K key) {
+    return (@PolyMutable List<V>) super.get(key);
   }
 
   /**
@@ -91,8 +97,8 @@ public List<V> get(@ParametricNullness K key) {
    */
   @CanIgnoreReturnValue
   @Override
-  public List<V> removeAll(@CheckForNull Object key) {
-    return (List<V>) super.removeAll(key);
+  public @Readonly List<V> removeAll(@Mutable AbstractListMultimap<K,V> this, @CheckForNull @Readonly Object key) {
+    return (@Readonly List<V>) super.removeAll(key);
   }
 
   /**
@@ -104,8 +110,8 @@ public List<V> removeAll(@CheckForNull Object key) {
    */
   @CanIgnoreReturnValue
   @Override
-  public List<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
-    return (List<V>) super.replaceValues(key, values);
+  public @Readonly List<V> replaceValues(@Mutable AbstractListMultimap<K,V> this, @ParametricNullness K key, Iterable<? extends V> values) {
+    return (@Readonly List<V>) super.replaceValues(key, values);
   }
 
   /**
@@ -117,7 +123,7 @@ public List<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> va
    */
   @CanIgnoreReturnValue
   @Override
-  public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
+  public boolean put(@Mutable AbstractListMultimap<K,V> this, @ParametricNullness K key, @ParametricNullness V value) {
     return super.put(key, value);
   }
 
@@ -128,7 +134,7 @@ public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
    * values.
    */
   @Override
-  public Map<K, Collection<V>> asMap() {
+  public @PolyMutable Map<K, @PolyMutable Collection<V>> asMap(@PolyMutable AbstractListMultimap<K,V> this) {
     return super.asMap();
   }
 
@@ -140,7 +146,7 @@ public Map<K, Collection<V>> asMap() {
    */
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@Readonly AbstractListMultimap<K,V> this, @CheckForNull @Readonly Object object) {
     return super.equals(object);
   }
 
diff --git a/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java b/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java
index 16f9cadc337e..cc1227593e36 100644
--- a/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java
+++ b/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java
@@ -48,7 +48,14 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * Basic implementation of the {@link Multimap} interface. This class represents a multimap as a map
@@ -88,9 +95,11 @@
  * @author Jared Levy
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class AbstractMapBasedMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+abstract class AbstractMapBasedMultimap<K extends @Nullable @Immutable Object, V extends @Readonly @Nullable Object>
     extends AbstractMultimap<K, V> implements Serializable {
   /*
    * Here's an outline of the overall design.
@@ -111,7 +120,7 @@ abstract class AbstractMapBasedMultimap<K extends @Nullable Object, V extends @N
    * an entry for the provided key, and if so replaces the delegate.
    */
 
-  private transient Map<K, Collection<V>> map;
+  private transient Map<K, @ReceiverDependentMutable Collection<V>> map;
   private transient int totalSize;
 
   /**
@@ -120,13 +129,13 @@ abstract class AbstractMapBasedMultimap<K extends @Nullable Object, V extends @N
    * @param map place to store the mapping from each key to its corresponding values
    * @throws IllegalArgumentException if {@code map} is not empty
    */
-  protected AbstractMapBasedMultimap(Map<K, Collection<V>> map) {
+  protected AbstractMapBasedMultimap(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map) {
     checkArgument(map.isEmpty());
     this.map = map;
   }
 
   /** Used during deserialization only. */
-  final void setMap(Map<K, Collection<V>> map) {
+  final void setMap(@Mutable AbstractMapBasedMultimap<K, V> this, Map<K, Collection<V>> map) {
     this.map = map;
     totalSize = 0;
     for (Collection<V> values : map.values()) {
@@ -140,7 +149,7 @@ final void setMap(Map<K, Collection<V>> map) {
    *
    * <p>This is used in {@link #removeAll} on an empty key.
    */
-  Collection<V> createUnmodifiableEmptyCollection() {
+  @Readonly Collection<V> createUnmodifiableEmptyCollection(@Readonly AbstractMapBasedMultimap<K, V> this) {
     return unmodifiableCollectionSubclass(createCollection());
   }
 
@@ -154,7 +163,7 @@ Collection<V> createUnmodifiableEmptyCollection() {
    *
    * @return an empty collection of values
    */
-  abstract Collection<V> createCollection();
+  abstract @PolyMutable Collection<V> createCollection(@PolyMutable AbstractMapBasedMultimap<K, V> this);
 
   /**
    * Creates the collection of values for an explicitly provided key. By default, it simply calls
@@ -164,30 +173,30 @@ Collection<V> createUnmodifiableEmptyCollection() {
    * @param key key to associate with values in the collection
    * @return an empty collection of values
    */
-  Collection<V> createCollection(@ParametricNullness K key) {
+  @PolyMutable Collection<V> createCollection(@PolyMutable AbstractMapBasedMultimap<K, V> this, @ParametricNullness K key) {
     return createCollection();
   }
 
-  Map<K, Collection<V>> backingMap() {
+  @PolyMutable Map<K, @PolyMutable Collection<V>> backingMap(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     return map;
   }
 
   // Query Operations
 
   @Override
-  public int size() {
+  public int size(@Readonly AbstractMapBasedMultimap<K, V> this) {
     return totalSize;
   }
 
   @Override
-  public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+  public boolean containsKey(@Readonly AbstractMapBasedMultimap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     return map.containsKey(key);
   }
 
   // Modification Operations
 
   @Override
-  public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
+  public boolean put(@Mutable AbstractMapBasedMultimap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
     Collection<V> collection = map.get(key);
     if (collection == null) {
       collection = createCollection(key);
@@ -206,7 +215,7 @@ public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
     }
   }
 
-  private Collection<V> getOrCreateCollection(@ParametricNullness K key) {
+  private Collection<V> getOrCreateCollection(@Mutable AbstractMapBasedMultimap<K, V> this, @ParametricNullness K key) {
     Collection<V> collection = map.get(key);
     if (collection == null) {
       collection = createCollection(key);
@@ -223,7 +232,7 @@ private Collection<V> getOrCreateCollection(@ParametricNullness K key) {
    * <p>The returned collection is immutable.
    */
   @Override
-  public Collection<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+  public @Readonly Collection<V> replaceValues(@Mutable AbstractMapBasedMultimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values) {
     Iterator<? extends V> iterator = values.iterator();
     if (!iterator.hasNext()) {
       return removeAll(key);
@@ -252,7 +261,7 @@ public Collection<V> replaceValues(@ParametricNullness K key, Iterable<? extends
    * <p>The returned collection is immutable.
    */
   @Override
-  public Collection<V> removeAll(@CheckForNull Object key) {
+  public @Readonly Collection<V> removeAll(@Mutable AbstractMapBasedMultimap<K, V> this, @CheckForNull @Readonly Object key) {
     Collection<V> collection = map.remove(key);
 
     if (collection == null) {
@@ -267,13 +276,14 @@ public Collection<V> removeAll(@CheckForNull Object key) {
     return unmodifiableCollectionSubclass(output);
   }
 
-  <E extends @Nullable Object> Collection<E> unmodifiableCollectionSubclass(
-      Collection<E> collection) {
+  <E extends @Nullable @Readonly Object> @Readonly Collection<E> unmodifiableCollectionSubclass(
+        @Readonly AbstractMapBasedMultimap<K, V> this,
+        @Readonly Collection<E> collection) {
     return Collections.unmodifiableCollection(collection);
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable AbstractMapBasedMultimap<K, V> this) {
     // Clear each collection, to make previously returned collections empty.
     for (Collection<V> collection : map.values()) {
       collection.clear();
@@ -290,7 +300,7 @@ public void clear() {
    * <p>The returned collection is not serializable.
    */
   @Override
-  public Collection<V> get(@ParametricNullness K key) {
+  public @PolyMutable Collection<V> get(@PolyMutable AbstractMapBasedMultimap<K, V> this, @ParametricNullness K key) {
     Collection<V> collection = map.get(key);
     if (collection == null) {
       collection = createCollection(key);
@@ -302,15 +312,15 @@ public Collection<V> get(@ParametricNullness K key) {
    * Generates a decorated collection that remains consistent with the values in the multimap for
    * the provided key. Changes to the multimap may alter the returned collection, and vice versa.
    */
-  Collection<V> wrapCollection(@ParametricNullness K key, Collection<V> collection) {
-    return new WrappedCollection(key, collection, null);
+  @PolyMutable Collection<V> wrapCollection(@PolyMutable AbstractMapBasedMultimap<K, V> this, @ParametricNullness K key, @PolyMutable Collection<V> collection) {
+    return new @PolyMutable WrappedCollection(key, collection, null);
   }
 
-  final List<V> wrapList(
-      @ParametricNullness K key, List<V> list, @CheckForNull WrappedCollection ancestor) {
+  final @PolyMutable List<V> wrapList(
+      @ParametricNullness K key, @PolyMutable List<V> list, @CheckForNull WrappedCollection ancestor) {
     return (list instanceof RandomAccess)
-        ? new RandomAccessWrappedList(key, list, ancestor)
-        : new WrappedList(key, list, ancestor);
+        ? new @PolyMutable RandomAccessWrappedList(key, list, ancestor)
+        : new @PolyMutable WrappedList(key, list, ancestor);
   }
 
   /**
@@ -329,6 +339,7 @@ final List<V> wrapList(
    * the corresponding methods of the full wrapped collection.
    */
   @WeakOuter
+  @ReceiverDependentMutable
   class WrappedCollection extends AbstractCollection<V> {
     @ParametricNullness final K key;
     Collection<V> delegate;
@@ -337,8 +348,8 @@ class WrappedCollection extends AbstractCollection<V> {
 
     WrappedCollection(
         @ParametricNullness K key,
-        Collection<V> delegate,
-        @CheckForNull WrappedCollection ancestor) {
+        @ReceiverDependentMutable Collection<V> delegate,
+        @CheckForNull @ReceiverDependentMutable WrappedCollection ancestor) {
       this.key = key;
       this.delegate = delegate;
       this.ancestor = ancestor;
@@ -352,7 +363,7 @@ class WrappedCollection extends AbstractCollection<V> {
      * <p>For a subcollection, refresh its ancestor and validate that the ancestor delegate hasn't
      * changed.
      */
-    void refreshIfEmpty() {
+    void refreshIfEmpty(@Mutable WrappedCollection this) {
       if (ancestor != null) {
         ancestor.refreshIfEmpty();
         if (ancestor.getDelegate() != ancestorDelegate) {
@@ -370,7 +381,7 @@ void refreshIfEmpty() {
      * If collection is empty, remove it from {@code AbstractMapBasedMultimap.this.map}. For
      * subcollections, check whether the ancestor collection is empty.
      */
-    void removeIfEmpty() {
+    void removeIfEmpty(@Mutable WrappedCollection this) {
       if (ancestor != null) {
         ancestor.removeIfEmpty();
       } else if (delegate.isEmpty()) {
@@ -379,7 +390,7 @@ void removeIfEmpty() {
     }
 
     @ParametricNullness
-    K getKey() {
+    K getKey(@Readonly WrappedCollection this) {
       return key;
     }
 
@@ -389,7 +400,7 @@ K getKey() {
      *
      * <p>Subcollection add the ancestor's delegate instead.
      */
-    void addToMap() {
+    void addToMap(@Mutable WrappedCollection this) {
       if (ancestor != null) {
         ancestor.addToMap();
       } else {
@@ -398,13 +409,13 @@ void addToMap() {
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly WrappedCollection this) {
       refreshIfEmpty();
       return delegate.size();
     }
 
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object object) {
+    public boolean equals(@Readonly WrappedCollection this, @CheckForNull @UnknownSignedness @Readonly Object object) {
       if (object == this) {
         return true;
       }
@@ -413,34 +424,37 @@ public boolean equals(@CheckForNull @UnknownSignedness Object object) {
     }
 
     @Override
-    public int hashCode(@UnknownSignedness WrappedCollection this) {
+    public int hashCode(@UnknownSignedness @Readonly WrappedCollection this) {
       refreshIfEmpty();
       return delegate.hashCode();
     }
 
     @Override
-    public String toString() {
+    public String toString(@Readonly WrappedCollection this) {
       refreshIfEmpty();
       return delegate.toString();
     }
 
-    Collection<V> getDelegate() {
+    @PolyMutable Collection<V> getDelegate(@PolyMutable WrappedCollection this) {
       return delegate;
     }
 
     @Override
-    public Iterator<V> iterator() {
+    @SuppressWarnings("pico:method.invocation.invalid") // refreshIfEmpty mutates 'this'
+    public Iterator<V> iterator(@Readonly WrappedCollection this) {
       refreshIfEmpty();
       return new WrappedIterator();
     }
 
     @Override
-    public Spliterator<V> spliterator() {
+    @SuppressWarnings("pico:method.invocation.invalid") // refreshIfEmpty mutates 'this'
+    public Spliterator<V> spliterator(@Readonly WrappedCollection this) {
       refreshIfEmpty();
       return delegate.spliterator();
     }
 
     /** Collection iterator for {@code WrappedCollection}. */
+    @ReceiverDependentMutable
     class WrappedIterator implements Iterator<V> {
       final Iterator<V> delegateIterator;
       final Collection<V> originalDelegate = delegate;
@@ -449,7 +463,7 @@ class WrappedIterator implements Iterator<V> {
         delegateIterator = iteratorOrListIterator(delegate);
       }
 
-      WrappedIterator(Iterator<V> delegateIterator) {
+      WrappedIterator(@ReceiverDependentMutable Iterator<V> delegateIterator) {
         this.delegateIterator = delegateIterator;
       }
 
@@ -551,7 +565,7 @@ public void clear() {
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable  @CheckForNull @UnknownSignedness @Readonly Object o) {
       refreshIfEmpty();
       boolean changed = delegate.remove(o);
       if (changed) {
@@ -590,7 +604,7 @@ public boolean retainAll(Collection<?> c) {
     }
   }
 
-  private static <E extends @Nullable Object> Iterator<E> iteratorOrListIterator(
+  private static <E extends @Nullable @Readonly Object> Iterator<E> iteratorOrListIterator(
       Collection<E> collection) {
     return (collection instanceof List)
         ? ((List<E>) collection).listIterator()
@@ -599,13 +613,14 @@ public boolean retainAll(Collection<?> c) {
 
   /** Set decorator that stays in sync with the multimap values for a key. */
   @WeakOuter
+  @ReceiverDependentMutable
   class WrappedSet extends WrappedCollection implements Set<V> {
-    WrappedSet(@ParametricNullness K key, Set<V> delegate) {
+    WrappedSet(@ParametricNullness K key, @ReceiverDependentMutable Set<V> delegate) {
       super(key, delegate, null);
     }
 
     @Override
-    public boolean removeAll(Collection<?> c) {
+    public boolean removeAll(@Mutable WrappedSet this, @Readonly Collection<?> c) {
       if (c.isEmpty()) {
         return false;
       }
@@ -626,11 +641,12 @@ public boolean removeAll(Collection<?> c) {
 
   /** SortedSet decorator that stays in sync with the multimap values for a key. */
   @WeakOuter
+  @ReceiverDependentMutable
   class WrappedSortedSet extends WrappedCollection implements SortedSet<V> {
     WrappedSortedSet(
         @ParametricNullness K key,
-        SortedSet<V> delegate,
-        @CheckForNull WrappedCollection ancestor) {
+        @ReceiverDependentMutable SortedSet<V> delegate,
+        @CheckForNull @ReceiverDependentMutable WrappedCollection ancestor) {
       super(key, delegate, ancestor);
     }
 
@@ -687,17 +703,18 @@ public SortedSet<V> tailSet(@ParametricNullness V fromElement) {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   class WrappedNavigableSet extends WrappedSortedSet implements NavigableSet<V> {
     WrappedNavigableSet(
         @ParametricNullness K key,
-        NavigableSet<V> delegate,
-        @CheckForNull WrappedCollection ancestor) {
+        @ReceiverDependentMutable NavigableSet<V> delegate,
+        @CheckForNull @ReceiverDependentMutable WrappedCollection ancestor) {
       super(key, delegate, ancestor);
     }
 
     @Override
-    NavigableSet<V> getSortedSetDelegate() {
-      return (NavigableSet<V>) super.getSortedSetDelegate();
+    @PolyMutable NavigableSet<V> getSortedSetDelegate(@PolyMutable WrappedNavigableSet this) {
+      return (@PolyMutable NavigableSet<V>) super.getSortedSetDelegate();
     }
 
     @Override
@@ -773,9 +790,10 @@ public NavigableSet<V> tailSet(@ParametricNullness V fromElement, boolean inclus
 
   /** List decorator that stays in sync with the multimap values for a key. */
   @WeakOuter
+  @ReceiverDependentMutable
   class WrappedList extends WrappedCollection implements List<V> {
     WrappedList(
-        @ParametricNullness K key, List<V> delegate, @CheckForNull WrappedCollection ancestor) {
+        @ParametricNullness K key, @ReceiverDependentMutable List<V> delegate, @CheckForNull WrappedCollection ancestor) {
       super(key, delegate, ancestor);
     }
 
@@ -869,6 +887,7 @@ public List<V> subList(int fromIndex, int toIndex) {
     }
 
     /** ListIterator decorator. */
+    @ReceiverDependentMutable
     private class WrappedListIterator extends WrappedIterator implements ListIterator<V> {
       WrappedListIterator() {}
 
@@ -922,31 +941,33 @@ public void add(@ParametricNullness V value) {
    * List decorator that stays in sync with the multimap values for a key and supports rapid random
    * access.
    */
+  @ReceiverDependentMutable
   private class RandomAccessWrappedList extends WrappedList implements RandomAccess {
     RandomAccessWrappedList(
-        @ParametricNullness K key, List<V> delegate, @CheckForNull WrappedCollection ancestor) {
+        @ParametricNullness K key, @ReceiverDependentMutable List<V> delegate, @CheckForNull WrappedCollection ancestor) {
       super(key, delegate, ancestor);
     }
   }
 
   @Override
-  Set<K> createKeySet() {
-    return new KeySet(map);
+  @PolyMutable Set<K> createKeySet(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
+    return new @PolyMutable KeySet(map);
   }
 
-  final Set<K> createMaybeNavigableKeySet() {
+  final @PolyMutable Set<K> createMaybeNavigableKeySet(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     if (map instanceof NavigableMap) {
-      return new NavigableKeySet((NavigableMap<K, Collection<V>>) map);
+      return new @PolyMutable NavigableKeySet((@PolyMutable NavigableMap<K, @PolyMutable Collection<V>>) map);
     } else if (map instanceof SortedMap) {
-      return new SortedKeySet((SortedMap<K, Collection<V>>) map);
+      return new @PolyMutable SortedKeySet((@PolyMutable SortedMap<K, @PolyMutable Collection<V>>) map);
     } else {
-      return new KeySet(map);
+      return new @PolyMutable KeySet(map);
     }
   }
 
   @WeakOuter
-  private class KeySet extends Maps.KeySet<K, Collection<V>> {
-    KeySet(final Map<K, Collection<V>> subMap) {
+  @ReceiverDependentMutable
+  private class KeySet extends Maps.KeySet<K, @ReceiverDependentMutable Collection<V>> {
+    KeySet(final @ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> subMap) {
       super(subMap);
     }
 
@@ -988,7 +1009,7 @@ public Spliterator<K> spliterator() {
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object key) {
+    public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object key) {
       int count = 0;
       Collection<V> collection = map().remove(key);
       if (collection != null) {
@@ -1010,17 +1031,18 @@ public boolean containsAll(Collection<?> c) {
     }
 
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object object) {
+    public boolean equals(@CheckForNull @UnknownSignedness @Readonly Object object) {
       return this == object || this.map().keySet().equals(object);
     }
 
     @Override
-    public int hashCode(@UnknownSignedness KeySet this) {
+    public int hashCode(@UnknownSignedness @Readonly KeySet this) {
       return map().keySet().hashCode();
     }
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   private class SortedKeySet extends KeySet implements SortedSet<K> {
 
     SortedKeySet(SortedMap<K, Collection<V>> subMap) {
@@ -1066,6 +1088,7 @@ public SortedSet<K> tailSet(@ParametricNullness K fromElement) {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   class NavigableKeySet extends SortedKeySet implements NavigableSet<K> {
     NavigableKeySet(NavigableMap<K, Collection<V>> subMap) {
       super(subMap);
@@ -1160,7 +1183,7 @@ public NavigableSet<K> tailSet(@ParametricNullness K fromElement, boolean inclus
   }
 
   /** Removes all values for the provided key. */
-  private void removeValuesForKey(@CheckForNull Object key) {
+  private void removeValuesForKey(@CheckForNull @Readonly Object key) {
     Collection<V> collection = Maps.safeRemove(map, key);
 
     if (collection != null) {
@@ -1170,7 +1193,8 @@ private void removeValuesForKey(@CheckForNull Object key) {
     }
   }
 
-  private abstract class Itr<T extends @Nullable Object> implements Iterator<T> {
+  @ReceiverDependentMutable
+  private abstract class Itr<T extends @Nullable @Readonly Object> implements Iterator<T> {
     final Iterator<Entry<K, Collection<V>>> keyIterator;
     @CheckForNull K key;
     @CheckForNull Collection<V> collection;
@@ -1226,17 +1250,18 @@ public void remove() {
    * by the values of a second key, and so on.
    */
   @Override
-  public Collection<V> values() {
+  public @PolyMutable Collection<V> values(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     return super.values();
   }
 
   @Override
-  Collection<V> createValues() {
+  @PolyMutable Collection<V> createValues(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     return new Values();
   }
 
   @Override
-  Iterator<V> valueIterator() {
+  @CFComment("PICO: follow super's polymutable")
+  Iterator<V> valueIterator(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     return new Itr<V>() {
       @Override
       @ParametricNullness
@@ -1247,7 +1272,8 @@ V output(@ParametricNullness K key, @ParametricNullness V value) {
   }
 
   @Override
-  Spliterator<V> valueSpliterator() {
+  @CFComment("PICO: follow super's polymutable")
+  Spliterator<V> valueSpliterator(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     return CollectSpliterators.flatMap(
         map.values().spliterator(), Collection::spliterator, Spliterator.SIZED, size());
   }
@@ -1259,7 +1285,7 @@ Spliterator<V> valueSpliterator() {
    */
 
   @Override
-  Multiset<K> createKeys() {
+  @PolyMutable Multiset<K> createKeys(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     return new Multimaps.Keys<K, V>(this);
   }
 
@@ -1273,12 +1299,12 @@ Multiset<K> createKeys() {
    * time the entry is returned by a method call to the collection or its iterator.
    */
   @Override
-  public Collection<Entry<K, V>> entries() {
+  public @PolyMutable Collection<@PolyMutable Entry<K, V>> entries(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     return super.entries();
   }
 
   @Override
-  Collection<Entry<K, V>> createEntries() {
+  @PolyMutable Collection<@PolyMutable Entry<K, V>> createEntries(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     if (this instanceof SetMultimap) {
       return new EntrySet();
     } else {
@@ -1295,17 +1321,17 @@ Collection<Entry<K, V>> createEntries() {
    * @return an iterator across map entries
    */
   @Override
-  Iterator<Entry<K, V>> entryIterator() {
-    return new Itr<Entry<K, V>>() {
+  Iterator<@PolyMutable Entry<K, V>> entryIterator(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
+    return new Itr<@PolyMutable Entry<K, V>>() {
       @Override
-      Entry<K, V> output(@ParametricNullness K key, @ParametricNullness V value) {
+      @Immutable Entry<K, V> output(@ParametricNullness K key, @ParametricNullness V value) {
         return Maps.immutableEntry(key, value);
       }
     };
   }
 
   @Override
-  Spliterator<Entry<K, V>> entrySpliterator() {
+  Spliterator<@PolyMutable Entry<K, V>> entrySpliterator(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     return CollectSpliterators.flatMap(
         map.entrySet().spliterator(),
         keyToValueCollectionEntry -> {
@@ -1326,11 +1352,11 @@ public void forEach(BiConsumer<? super K, ? super V> action) {
   }
 
   @Override
-  Map<K, Collection<V>> createAsMap() {
+  @PolyMutable Map<K, @PolyMutable Collection<V>> createAsMap(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     return new AsMap(map);
   }
 
-  final Map<K, Collection<V>> createMaybeNavigableAsMap() {
+  final Map<K, @PolyMutable Collection<V>> createMaybeNavigableAsMap(@PolyMutable AbstractMapBasedMultimap<K, V> this) {
     if (map instanceof NavigableMap) {
       return new NavigableAsMap((NavigableMap<K, Collection<V>>) map);
     } else if (map instanceof SortedMap) {
@@ -1341,32 +1367,33 @@ final Map<K, Collection<V>> createMaybeNavigableAsMap() {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   private class AsMap extends ViewCachingAbstractMap<K, Collection<V>> {
     /**
      * Usually the same as map, but smaller for the headMap(), tailMap(), or subMap() of a
      * SortedAsMap.
      */
-    final transient Map<K, Collection<V>> submap;
+    final transient Map<K, @ReceiverDependentMutable  Collection<V>> submap;
 
-    AsMap(Map<K, Collection<V>> submap) {
+    AsMap(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable  Collection<V>> submap) {
       this.submap = submap;
     }
 
     @Override
-    protected Set<Entry<K, Collection<V>>> createEntrySet() {
+    protected @PolyMutable Set<@PolyMutable Entry<K, @PolyMutable Collection<V>>> createEntrySet(@PolyMutable AsMap this) {
       return new AsMapEntries();
     }
 
     // The following methods are included for performance.
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@Readonly AsMap this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return Maps.safeContainsKey(submap, key);
     }
 
     @Override
     @CheckForNull
-    public Collection<V> get(@CheckForNull @UnknownSignedness Object key) {
+    public @PolyMutable Collection<V> get(@PolyMutable AsMap this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       Collection<V> collection = Maps.safeGet(submap, key);
       if (collection == null) {
         return null;
@@ -1377,18 +1404,18 @@ public Collection<V> get(@CheckForNull @UnknownSignedness Object key) {
     }
 
     @Override
-    public Set<@KeyFor({"this"}) K> keySet() {
+    public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable AsMap this) {
       return AbstractMapBasedMultimap.this.keySet();
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly AsMap this) {
       return submap.size();
     }
 
     @Override
     @CheckForNull
-    public Collection<V> remove(@CheckForNull @UnknownSignedness Object key) {
+    public Collection<V> remove(@Mutable AsMap this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       Collection<V> collection = submap.remove(key);
       if (collection == null) {
         return null;
@@ -1402,22 +1429,22 @@ public Collection<V> remove(@CheckForNull @UnknownSignedness Object key) {
     }
 
     @Override
-    public boolean equals(@CheckForNull Object object) {
+    public boolean equals(@Readonly AsMap this, @CheckForNull @Readonly Object object) {
       return this == object || submap.equals(object);
     }
 
     @Override
-    public int hashCode(@UnknownSignedness AsMap this) {
+    public int hashCode(@UnknownSignedness @Readonly AsMap this) {
       return submap.hashCode();
     }
 
     @Override
-    public String toString() {
+    public String toString(@Readonly AsMap this) {
       return submap.toString();
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable AsMap this) {
       if (submap == map) {
         AbstractMapBasedMultimap.this.clear();
       } else {
@@ -1425,20 +1452,21 @@ public void clear() {
       }
     }
 
-    Entry<K, Collection<V>> wrapEntry(Entry<K, Collection<V>> entry) {
+    @Immutable Entry<K, Collection<V>> wrapEntry(Entry<K, Collection<V>> entry) {
       K key = entry.getKey();
       return Maps.immutableEntry(key, wrapCollection(key, entry.getValue()));
     }
 
     @WeakOuter
-    class AsMapEntries extends Maps.EntrySet<K, Collection<V>> {
+    @ReceiverDependentMutable
+    class AsMapEntries extends Maps.EntrySet<K, @ReceiverDependentMutable Collection<V>> {
       @Override
-      Map<K, Collection<V>> map() {
+      @PolyMutable Map<K, @PolyMutable Collection<V>> map(@PolyMutable AsMapEntries this) {
         return AsMap.this;
       }
 
       @Override
-      public Iterator<Entry<K, Collection<V>>> iterator() {
+      public Iterator<Entry<K, Collection<V>>> iterator(@PolyMutable AsMapEntries this) {
         return new AsMapIterator();
       }
 
@@ -1450,12 +1478,12 @@ public Spliterator<Entry<K, Collection<V>>> spliterator() {
       // The following methods are included for performance.
 
       @Override
-      public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+      public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object o) {
         return Collections2.safeContains(submap.entrySet(), o);
       }
 
       @Override
-      public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+      public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object o) {
         if (!contains(o)) {
           return false;
         }
@@ -1495,47 +1523,48 @@ public void remove() {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   private class SortedAsMap extends AsMap implements SortedMap<K, Collection<V>> {
-    SortedAsMap(SortedMap<K, Collection<V>> submap) {
+    SortedAsMap(@ReceiverDependentMutable SortedMap<K, Collection<V>> submap) {
       super(submap);
     }
 
-    SortedMap<K, Collection<V>> sortedMap() {
-      return (SortedMap<K, Collection<V>>) submap;
+    @PolyMutable SortedMap<K, @PolyMutable Collection<V>> sortedMap(@PolyMutable SortedAsMap this) {
+      return (@PolyMutable SortedMap<K, @PolyMutable Collection<V>>) submap;
     }
 
     @Override
     @CheckForNull
-    public Comparator<? super K> comparator() {
+    public Comparator<? super K> comparator(@Readonly SortedAsMap this) {
       return sortedMap().comparator();
     }
 
     @Override
     @ParametricNullness
-    public @KeyFor("this") K firstKey() {
+    public @KeyFor("this") K firstKey(@Readonly SortedAsMap this) {
       return sortedMap().firstKey();
     }
 
     @Override
     @ParametricNullness
-    public @KeyFor("this") K lastKey() {
+    public @KeyFor("this") K lastKey(@Readonly SortedAsMap this) {
       return sortedMap().lastKey();
     }
 
     @Override
-    public SortedMap<K, Collection<V>> headMap(@ParametricNullness K toKey) {
+    public @PolyMutable SortedMap<K, @PolyMutable Collection<V>> headMap(@PolyMutable SortedAsMap this, @ParametricNullness K toKey) {
       return new SortedAsMap(sortedMap().headMap(toKey));
     }
 
     @Override
-    public SortedMap<K, Collection<V>> subMap(
+    public @PolyMutable SortedMap<K, @PolyMutable Collection<V>> subMap(
         @ParametricNullness K fromKey, @ParametricNullness K toKey) {
-      return new SortedAsMap(sortedMap().subMap(fromKey, toKey));
+      return new @PolyMutable SortedAsMap(sortedMap().subMap(fromKey, toKey));
     }
 
     @Override
-    public SortedMap<K, Collection<V>> tailMap(@ParametricNullness K fromKey) {
-      return new SortedAsMap(sortedMap().tailMap(fromKey));
+    public @PolyMutable SortedMap<K, @PolyMutable Collection<V>> tailMap(@ParametricNullness K fromKey) {
+      return new @PolyMutable SortedAsMap(sortedMap().tailMap(fromKey));
     }
 
     @CheckForNull SortedSet<K> sortedKeySet;
@@ -1543,108 +1572,109 @@ public SortedMap<K, Collection<V>> tailMap(@ParametricNullness K fromKey) {
     // returns a SortedSet, even though returning a Set would be sufficient to
     // satisfy the SortedMap.keySet() interface
     @Override
-    public SortedSet<@KeyFor({"this"}) K> keySet() {
+    public @PolyMutable SortedSet<@KeyFor({"this"}) K> keySet(@PolyMutable SortedAsMap this) {
       SortedSet<K> result = sortedKeySet;
       return (result == null) ? sortedKeySet = createKeySet() : result;
     }
 
     @Override
-    SortedSet<K> createKeySet() {
-      return new SortedKeySet(sortedMap());
+    @PolyMutable SortedSet<K> createKeySet(@PolyMutable SortedAsMap this) {
+      return new @PolyMutable SortedKeySet(sortedMap());
     }
   }
 
-  class NavigableAsMap extends SortedAsMap implements NavigableMap<K, Collection<V>> {
+  @ReceiverDependentMutable
+  class NavigableAsMap extends SortedAsMap implements NavigableMap<K, @ReceiverDependentMutable Collection<V>> {
 
-    NavigableAsMap(NavigableMap<K, Collection<V>> submap) {
+    NavigableAsMap(NavigableMap<K, @ReceiverDependentMutable Collection<V>> submap) {
       super(submap);
     }
 
     @Override
-    NavigableMap<K, Collection<V>> sortedMap() {
-      return (NavigableMap<K, Collection<V>>) super.sortedMap();
+    NavigableMap<K, @PolyMutable Collection<V>> sortedMap(@PolyMutable NavigableAsMap this) {
+      return (NavigableMap<K, @PolyMutable Collection<V>>) super.sortedMap();
     }
 
     @Override
     @CheckForNull
-    public Entry<K, Collection<V>> lowerEntry(@ParametricNullness K key) {
-      Entry<K, Collection<V>> entry = sortedMap().lowerEntry(key);
+    public @PolyMutable Entry<K, @PolyMutable Collection<V>> lowerEntry(@PolyMutable NavigableAsMap this, @ParametricNullness K key) {
+      Entry<K, @PolyMutable Collection<V>> entry = sortedMap().lowerEntry(key);
       return (entry == null) ? null : wrapEntry(entry);
     }
 
     @Override
     @CheckForNull
-    public K lowerKey(@ParametricNullness K key) {
+    public K lowerKey(@Readonly NavigableAsMap this, @ParametricNullness K key) {
       return sortedMap().lowerKey(key);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, Collection<V>> floorEntry(@ParametricNullness K key) {
-      Entry<K, Collection<V>> entry = sortedMap().floorEntry(key);
+    public @PolyMutable Entry<K, @PolyMutable Collection<V>> floorEntry(@PolyMutable NavigableAsMap this, @ParametricNullness K key) {
+        @PolyMutable Entry<K, @PolyMutable Collection<V>> entry = sortedMap().floorEntry(key);
       return (entry == null) ? null : wrapEntry(entry);
     }
 
     @Override
     @CheckForNull
-    public K floorKey(@ParametricNullness K key) {
+    public K floorKey(@Readonly NavigableAsMap this, @ParametricNullness K key) {
       return sortedMap().floorKey(key);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, Collection<V>> ceilingEntry(@ParametricNullness K key) {
-      Entry<K, Collection<V>> entry = sortedMap().ceilingEntry(key);
+    public Entry<K, @PolyMutable Collection<V>> ceilingEntry(@PolyMutable NavigableAsMap this, @ParametricNullness K key) {
+      Entry<K, @PolyMutable Collection<V>> entry = sortedMap().ceilingEntry(key);
       return (entry == null) ? null : wrapEntry(entry);
     }
 
     @Override
     @CheckForNull
-    public K ceilingKey(@ParametricNullness K key) {
+    public K ceilingKey(@Readonly NavigableAsMap this, @ParametricNullness K key) {
       return sortedMap().ceilingKey(key);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, Collection<V>> higherEntry(@ParametricNullness K key) {
-      Entry<K, Collection<V>> entry = sortedMap().higherEntry(key);
+    public Entry<K, @PolyMutable Collection<V>> higherEntry(@PolyMutable NavigableAsMap this, @ParametricNullness K key) {
+      Entry<K, @PolyMutable Collection<V>> entry = sortedMap().higherEntry(key);
       return (entry == null) ? null : wrapEntry(entry);
     }
 
     @Override
     @CheckForNull
-    public K higherKey(@ParametricNullness K key) {
+    public K higherKey(@Readonly NavigableAsMap this, @ParametricNullness K key) {
       return sortedMap().higherKey(key);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, Collection<V>> firstEntry() {
-      Entry<K, Collection<V>> entry = sortedMap().firstEntry();
+    public Entry<K, @PolyMutable Collection<V>> firstEntry(@PolyMutable NavigableAsMap this) {
+      Entry<K, @PolyMutable Collection<V>> entry = sortedMap().firstEntry();
       return (entry == null) ? null : wrapEntry(entry);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, Collection<V>> lastEntry() {
-      Entry<K, Collection<V>> entry = sortedMap().lastEntry();
+    public Entry<K, @PolyMutable Collection<V>> lastEntry(@PolyMutable NavigableAsMap this) {
+      Entry<K, @PolyMutable Collection<V>> entry = sortedMap().lastEntry();
       return (entry == null) ? null : wrapEntry(entry);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, Collection<V>> pollFirstEntry() {
+    public @Immutable Entry<K, Collection<V>> pollFirstEntry(@Mutable NavigableAsMap this) {
       return pollAsMapEntry(entrySet().iterator());
     }
 
     @Override
     @CheckForNull
-    public Entry<K, Collection<V>> pollLastEntry() {
+    public @Immutable Entry<K, Collection<V>> pollLastEntry(@Mutable NavigableAsMap this) {
       return pollAsMapEntry(descendingMap().entrySet().iterator());
     }
 
     @CheckForNull
-    Entry<K, Collection<V>> pollAsMapEntry(Iterator<Entry<K, Collection<V>>> entryIterator) {
+    @Immutable Entry<K, Collection<V>> pollAsMapEntry(@Mutable NavigableAsMap this, Iterator<Entry<K, Collection<V>>> entryIterator) {
       if (!entryIterator.hasNext()) {
         return null;
       }
@@ -1656,64 +1686,67 @@ Entry<K, Collection<V>> pollAsMapEntry(Iterator<Entry<K, Collection<V>>> entryIt
     }
 
     @Override
-    public NavigableMap<K, Collection<V>> descendingMap() {
-      return new NavigableAsMap(sortedMap().descendingMap());
+    public @PolyMutable NavigableMap<K, @PolyMutable Collection<V>> descendingMap(@PolyMutable NavigableAsMap this) {
+      return new @PolyMutable NavigableAsMap(sortedMap().descendingMap());
     }
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> keySet() {
-      return (NavigableSet<K>) super.keySet();
+    public @PolyMutable NavigableSet<@KeyFor({"this"}) K> keySet(@PolyMutable NavigableAsMap this) {
+      return (@PolyMutable NavigableSet<K>) super.keySet();
     }
 
     @Override
-    NavigableSet<K> createKeySet() {
-      return new NavigableKeySet(sortedMap());
+    @PolyMutable NavigableSet<K> createKeySet(@PolyMutable NavigableAsMap this) {
+      return new @PolyMutable NavigableKeySet(sortedMap());
     }
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> navigableKeySet() {
+    public @PolyMutable NavigableSet<@KeyFor({"this"}) K> navigableKeySet(@PolyMutable NavigableAsMap this) {
       return keySet();
     }
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> descendingKeySet() {
+    public @PolyMutable NavigableSet<@KeyFor({"this"}) K> descendingKeySet(@PolyMutable NavigableAsMap this) {
       return descendingMap().navigableKeySet();
     }
 
     @Override
-    public NavigableMap<K, Collection<V>> subMap(
+    public @PolyMutable NavigableMap<K, @PolyMutable Collection<V>> subMap(
+            @PolyMutable NavigableAsMap this,
         @ParametricNullness K fromKey, @ParametricNullness K toKey) {
       return subMap(fromKey, true, toKey, false);
     }
 
     @Override
-    public NavigableMap<K, Collection<V>> subMap(
+    public @PolyMutable NavigableMap<K, @PolyMutable Collection<V>> subMap(
+            @PolyMutable NavigableAsMap this,
         @ParametricNullness K fromKey,
         boolean fromInclusive,
         @ParametricNullness K toKey,
         boolean toInclusive) {
-      return new NavigableAsMap(sortedMap().subMap(fromKey, fromInclusive, toKey, toInclusive));
+      return new @PolyMutable NavigableAsMap(sortedMap().subMap(fromKey, fromInclusive, toKey, toInclusive));
     }
 
     @Override
-    public NavigableMap<K, Collection<V>> headMap(@ParametricNullness K toKey) {
+    public @PolyMutable NavigableMap<K, @PolyMutable Collection<V>> headMap(@PolyMutable NavigableAsMap this, @ParametricNullness K toKey) {
       return headMap(toKey, false);
     }
 
     @Override
-    public NavigableMap<K, Collection<V>> headMap(@ParametricNullness K toKey, boolean inclusive) {
-      return new NavigableAsMap(sortedMap().headMap(toKey, inclusive));
+    public @PolyMutable NavigableMap<K, @PolyMutable Collection<V>> headMap(@PolyMutable NavigableAsMap this, @ParametricNullness K toKey, boolean inclusive) {
+      return new @PolyMutable NavigableAsMap(sortedMap().headMap(toKey, inclusive));
     }
 
     @Override
-    public NavigableMap<K, Collection<V>> tailMap(@ParametricNullness K fromKey) {
+    public @PolyMutable NavigableMap<K, @PolyMutable Collection<V>> tailMap(@PolyMutable NavigableAsMap this, @ParametricNullness K fromKey) {
       return tailMap(fromKey, true);
     }
 
     @Override
-    public NavigableMap<K, Collection<V>> tailMap(
+    public @PolyMutable NavigableMap<K, @PolyMutable Collection<V>> tailMap(
+            @PolyMutable NavigableAsMap this,
         @ParametricNullness K fromKey, boolean inclusive) {
-      return new NavigableAsMap(sortedMap().tailMap(fromKey, inclusive));
+      return new @PolyMutable NavigableAsMap(sortedMap().tailMap(fromKey, inclusive));
     }
   }
 
diff --git a/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java b/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java
index 10f52a9edafd..81c0e7d2a167 100644
--- a/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java
+++ b/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java
@@ -38,6 +38,10 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -54,7 +58,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-abstract class AbstractMapBasedMultiset<E extends @Nullable Object> extends AbstractMultiset<E>
+@ReceiverDependentMutable
+abstract class AbstractMapBasedMultiset<E extends @Nullable @Immutable Object> extends AbstractMultiset<E>
     implements Serializable {
   // TODO(lowasser): consider overhauling this back to Map<E, Integer>
   private transient Map<E, Count> backingMap;
@@ -67,13 +72,13 @@ abstract class AbstractMapBasedMultiset<E extends @Nullable Object> extends Abst
   private transient long size;
 
   /** Standard constructor. */
-  protected AbstractMapBasedMultiset(Map<E, Count> backingMap) {
+  protected AbstractMapBasedMultiset(@ReceiverDependentMutable Map<E, Count> backingMap) {
     checkArgument(backingMap.isEmpty());
     this.backingMap = backingMap;
   }
 
   /** Used during deserialization only. The backing map must be empty. */
-  void setBackingMap(Map<E, Count> backingMap) {
+  void setBackingMap(@ReceiverDependentMutable Map<E, Count> backingMap) {
     this.backingMap = backingMap;
   }
 
@@ -205,6 +210,7 @@ public Iterator<E> iterator() {
    * retrieve the Map.Entry<E, Count> entry, which can then be used for
    * a more efficient remove() call.
    */
+  @ReceiverDependentMutable
   private class MapBasedMultisetIterator implements Iterator<E> {
     final Iterator<Map.Entry<E, Count>> entryIterator;
     @CheckForNull Map.Entry<E, Count> currentEntry;
@@ -256,7 +262,7 @@ public void remove() {
   }
 
   @Override
-  public @NonNegative int count(@CheckForNull @UnknownSignedness Object element) {
+  public @NonNegative int count(@Readonly AbstractMapBasedMultiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object element) {
     Count frequency = Maps.safeGet(backingMap, element);
     return (frequency == null) ? 0 : frequency.get();
   }
@@ -271,7 +277,7 @@ public void remove() {
    */
   @CanIgnoreReturnValue
   @Override
-  public int add(@ParametricNullness E element, int occurrences) {
+  public int add(@Mutable AbstractMapBasedMultiset<E> this, @ParametricNullness E element, int occurrences) {
     if (occurrences == 0) {
       return count(element);
     }
@@ -293,7 +299,7 @@ public int add(@ParametricNullness E element, int occurrences) {
 
   @CanIgnoreReturnValue
   @Override
-  public int remove(@CheckForNull Object element, int occurrences) {
+  public int remove(@Mutable AbstractMapBasedMultiset<E> this, @CheckForNull @Readonly Object element, int occurrences) {
     if (occurrences == 0) {
       return count(element);
     }
@@ -321,7 +327,7 @@ public int remove(@CheckForNull Object element, int occurrences) {
   // Roughly a 33% performance improvement over AbstractMultiset.setCount().
   @CanIgnoreReturnValue
   @Override
-  public int setCount(@ParametricNullness E element, int count) {
+  public int setCount(@Mutable AbstractMapBasedMultiset<E> this, @ParametricNullness E element, int count) {
     checkNonnegative(count, "count");
 
     Count existingCounter;
diff --git a/guava/src/com/google/common/collect/AbstractMapEntry.java b/guava/src/com/google/common/collect/AbstractMapEntry.java
index 5819710f3c5a..62501ddfbe13 100644
--- a/guava/src/com/google/common/collect/AbstractMapEntry.java
+++ b/guava/src/com/google/common/collect/AbstractMapEntry.java
@@ -22,6 +22,10 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -31,31 +35,32 @@
  *
  * @author Jared Levy
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class AbstractMapEntry<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+abstract class AbstractMapEntry<K extends @Nullable @Immutable Object, V extends @Readonly @Nullable Object>
     implements Entry<K, V> {
 
   @Pure
   @Override
   @ParametricNullness
-  public abstract K getKey();
+  public abstract K getKey(@Readonly AbstractMapEntry<K, V> this);
 
   @Pure
   @Override
   @ParametricNullness
-  public abstract V getValue();
+  public abstract V getValue(@Readonly AbstractMapEntry<K, V> this);
 
   @Override
   @ParametricNullness
-  public V setValue(@ParametricNullness V value) {
+  public V setValue(@Mutable AbstractMapEntry<K, V> this, @ParametricNullness V value) {
     throw new UnsupportedOperationException();
   }
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@Readonly AbstractMapEntry<K, V> this, @CheckForNull @Readonly Object object) {
     if (object instanceof Entry) {
       Entry<?, ?> that = (Entry<?, ?>) object;
       return Objects.equal(this.getKey(), that.getKey())
@@ -66,7 +71,7 @@ public boolean equals(@CheckForNull Object object) {
 
   @Pure
   @Override
-  public int hashCode(@UnknownSignedness AbstractMapEntry<K, V> this) {
+  public int hashCode(@UnknownSignedness @Readonly AbstractMapEntry<K, V> this) {
     K k = getKey();
     V v = getValue();
     return ((k == null) ? 0 : k.hashCode()) ^ ((v == null) ? 0 : v.hashCode());
@@ -75,7 +80,7 @@ public int hashCode(@UnknownSignedness AbstractMapEntry<K, V> this) {
   /** Returns a string representation of the form {@code {key}={value}}. */
   @Pure
   @Override
-  public String toString() {
+  public String toString(@Readonly AbstractMapEntry<K, V> this) {
     return getKey() + "=" + getValue();
   }
 }
diff --git a/guava/src/com/google/common/collect/AbstractMultimap.java b/guava/src/com/google/common/collect/AbstractMultimap.java
index db5a67f88e80..d8ddb398da09 100644
--- a/guava/src/com/google/common/collect/AbstractMultimap.java
+++ b/guava/src/com/google/common/collect/AbstractMultimap.java
@@ -34,29 +34,37 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * A skeleton {@code Multimap} implementation, not necessarily in terms of a {@code Map}.
  *
  * @author Louis Wasserman
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class AbstractMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+abstract class AbstractMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     implements Multimap<K, V> {
   @Pure
   @Override
-  public boolean isEmpty() {
+  public boolean isEmpty(@Readonly AbstractMultimap<K, V> this) {
     return size() == 0;
   }
 
   @Pure
   @Override
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@Readonly AbstractMultimap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
     for (Collection<V> collection : asMap().values()) {
       if (collection.contains(value)) {
         return true;
@@ -68,27 +76,27 @@ public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
 
   @Pure
   @Override
-  public boolean containsEntry(@CheckForNull Object key, @CheckForNull Object value) {
+  public boolean containsEntry(@Readonly AbstractMultimap<K, V> this, @CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
     Collection<V> collection = asMap().get(key);
     return collection != null && collection.contains(value);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean remove(@CheckForNull Object key, @CheckForNull Object value) {
+  public boolean remove(@Mutable AbstractMultimap<K, V> this, @CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
     Collection<V> collection = asMap().get(key);
     return collection != null && collection.remove(value);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
+  public boolean put(@Mutable AbstractMultimap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
     return get(key).add(value);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean putAll(@ParametricNullness K key, Iterable<? extends V> values) {
+  public boolean putAll(@Mutable AbstractMultimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values) {
     checkNotNull(values);
     // make sure we only call values.iterator() once
     // and we only call get(key) if values is nonempty
@@ -103,7 +111,7 @@ public boolean putAll(@ParametricNullness K key, Iterable<? extends V> values) {
 
   @CanIgnoreReturnValue
   @Override
-  public boolean putAll(Multimap<? extends K, ? extends V> multimap) {
+  public boolean putAll(@Mutable AbstractMultimap<K, V> this, Multimap<? extends K, ? extends V> multimap) {
     boolean changed = false;
     for (Entry<? extends K, ? extends V> entry : multimap.entries()) {
       changed |= put(entry.getKey(), entry.getValue());
@@ -113,150 +121,157 @@ public boolean putAll(Multimap<? extends K, ? extends V> multimap) {
 
   @CanIgnoreReturnValue
   @Override
-  public Collection<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+  public Collection<V> replaceValues(@Mutable AbstractMultimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values) {
     checkNotNull(values);
     Collection<V> result = removeAll(key);
     putAll(key, values);
     return result;
   }
 
-  @LazyInit @CheckForNull private transient Collection<Entry<K, V>> entries;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @CheckForNull private transient @Assignable Collection<@ReceiverDependentMutable Entry<K, V>> entries;
 
   @SideEffectFree
   @Override
-  public Collection<Entry<K, V>> entries() {
-    Collection<Entry<K, V>> result = entries;
+  public @PolyMutable Collection<@PolyMutable Entry<K, V>> entries(@PolyMutable AbstractMultimap<K, V> this) {
+    Collection<@PolyMutable Entry<K, V>> result = entries;
     return (result == null) ? entries = createEntries() : result;
   }
 
-  abstract Collection<Entry<K, V>> createEntries();
+  abstract @PolyMutable Collection<@PolyMutable Entry<K, V>> createEntries(@PolyMutable AbstractMultimap<K, V> this);
 
   @WeakOuter
+  @ReceiverDependentMutable
   class Entries extends Multimaps.Entries<K, V> {
     @Override
-    Multimap<K, V> multimap() {
+    @PolyMutable Multimap<K, V> multimap(@PolyMutable AbstractMultimap<K,V>.Entries this) {
       return AbstractMultimap.this;
     }
 
     @Override
-    public Iterator<Entry<K, V>> iterator() {
+    public Iterator<@PolyMutable Entry<K, V>> iterator(@PolyMutable AbstractMultimap<K,V>.Entries this) {
       return entryIterator();
     }
 
     @Override
-    public Spliterator<Entry<K, V>> spliterator() {
+    public Spliterator<@PolyMutable Entry<K, V>> spliterator(@PolyMutable AbstractMultimap<K,V>.Entries this) {
       return entrySpliterator();
     }
   }
 
   @WeakOuter
-  class EntrySet extends Entries implements Set<Entry<K, V>> {
+  @ReceiverDependentMutable
+  class EntrySet extends Entries implements Set<@ReceiverDependentMutable Entry<K, V>> {
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness EntrySet this) {
+    public int hashCode(@UnknownSignedness @Readonly EntrySet this) {
       return Sets.hashCodeImpl(this);
     }
 
     @Pure
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object obj) {
+    public boolean equals(@Readonly EntrySet this, @CheckForNull @UnknownSignedness @Readonly Object obj) {
       return Sets.equalsImpl(this, obj);
     }
   }
 
-  abstract Iterator<Entry<K, V>> entryIterator();
+  abstract Iterator<@PolyMutable Entry<K, V>> entryIterator(@PolyMutable AbstractMultimap<K, V> this);
 
-  Spliterator<Entry<K, V>> entrySpliterator() {
+  Spliterator<@PolyMutable Entry<K, V>> entrySpliterator(@PolyMutable AbstractMultimap<K, V> this) {
     return Spliterators.spliterator(
         entryIterator(), size(), (this instanceof SetMultimap) ? Spliterator.DISTINCT : 0);
   }
 
-  @LazyInit @CheckForNull private transient Set<K> keySet;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @CheckForNull private transient @Assignable Set<K> keySet;
 
   @SideEffectFree
   @Override
-  public Set<K> keySet() {
+  public @PolyMutable Set<K> keySet(@PolyMutable AbstractMultimap<K, V> this) {
     Set<K> result = keySet;
     return (result == null) ? keySet = createKeySet() : result;
   }
 
   @SideEffectFree
-  abstract Set<K> createKeySet();
+  abstract @PolyMutable Set<K> createKeySet(@PolyMutable AbstractMultimap<K, V> this);
 
-  @LazyInit @CheckForNull private transient Multiset<K> keys;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @CheckForNull private transient @Assignable Multiset<K> keys;
 
   @Override
-  public Multiset<K> keys() {
+  public @PolyMutable Multiset<K> keys(@PolyMutable AbstractMultimap<K, V> this) {
     Multiset<K> result = keys;
     return (result == null) ? keys = createKeys() : result;
   }
 
-  abstract Multiset<K> createKeys();
+  abstract @PolyMutable Multiset<K> createKeys(@PolyMutable AbstractMultimap<K, V> this);
 
-  @LazyInit @CheckForNull private transient Collection<V> values;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @CheckForNull private transient @Assignable Collection<V> values;
 
   @SideEffectFree
   @Override
-  public Collection<V> values() {
+  public @PolyMutable Collection<V> values(@PolyMutable AbstractMultimap<K, V> this) {
     Collection<V> result = values;
     return (result == null) ? values = createValues() : result;
   }
 
-  abstract Collection<V> createValues();
+  abstract @PolyMutable Collection<V> createValues(@PolyMutable AbstractMultimap<K, V> this);
 
   @WeakOuter
+  @ReceiverDependentMutable
   class Values extends AbstractCollection<V> {
     @Override
-    public Iterator<V> iterator() {
+    public Iterator<V> iterator(@Readonly Values this) {
       return valueIterator();
     }
 
     @Pure
     @Override
-    public Spliterator<V> spliterator() {
+    public Spliterator<V> spliterator(@Readonly Values this) {
       return valueSpliterator();
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly Values this) {
       return AbstractMultimap.this.size();
     }
 
     @Pure
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly Values this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       return AbstractMultimap.this.containsValue(o);
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable Values this) {
       AbstractMultimap.this.clear();
     }
   }
 
-  Iterator<V> valueIterator() {
+  Iterator<V> valueIterator(@PolyMutable AbstractMultimap<K, V> this) {
     return Maps.valueIterator(entries().iterator());
   }
 
-  Spliterator<V> valueSpliterator() {
+  Spliterator<V> valueSpliterator(@PolyMutable AbstractMultimap<K, V> this) {
     return Spliterators.spliterator(valueIterator(), size(), 0);
   }
 
-  @LazyInit @CheckForNull private transient Map<K, Collection<V>> asMap;
+  @LazyInit @CheckForNull private transient @Assignable Map<K, @ReceiverDependentMutable Collection<V>> asMap;
 
   @Override
-  public Map<K, Collection<V>> asMap() {
-    Map<K, Collection<V>> result = asMap;
+  public @PolyMutable Map<K, @PolyMutable Collection<V>> asMap(@PolyMutable AbstractMultimap<K, V> this) {
+    Map<K, @PolyMutable Collection<V>> result = asMap;
     return (result == null) ? asMap = createAsMap() : result;
   }
 
-  abstract Map<K, Collection<V>> createAsMap();
+  abstract @PolyMutable Map<K, @PolyMutable Collection<V>> createAsMap(@PolyMutable AbstractMultimap<K, V> this);
 
   // Comparison and hashing
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@Readonly AbstractMultimap<K, V> this, @CheckForNull @Readonly Object object) {
     return Multimaps.equalsImpl(this, object);
   }
 
@@ -270,7 +285,7 @@ public boolean equals(@CheckForNull Object object) {
    */
   @Pure
   @Override
-  public int hashCode(@UnknownSignedness AbstractMultimap<K, V> this) {
+  public int hashCode(@UnknownSignedness @Readonly AbstractMultimap<K, V> this) {
     return asMap().hashCode();
   }
 
@@ -282,7 +297,7 @@ public int hashCode(@UnknownSignedness AbstractMultimap<K, V> this) {
    */
   @Pure
   @Override
-  public String toString() {
+  public String toString(@Readonly AbstractMultimap<K, V> this) {
     return asMap().toString();
   }
 }
diff --git a/guava/src/com/google/common/collect/AbstractMultiset.java b/guava/src/com/google/common/collect/AbstractMultiset.java
index 4266d7a318b1..7fc972efb3bb 100644
--- a/guava/src/com/google/common/collect/AbstractMultiset.java
+++ b/guava/src/com/google/common/collect/AbstractMultiset.java
@@ -29,10 +29,15 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * This class provides a skeletal implementation of the {@link Multiset} interface. A new multiset
@@ -47,60 +52,61 @@
  * @author Kevin Bourrillion
  * @author Louis Wasserman
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class AbstractMultiset<E extends @Nullable Object> extends AbstractCollection<E>
+@ReceiverDependentMutable
+abstract class AbstractMultiset<E extends @Nullable @Readonly Object> extends AbstractCollection<E>
     implements Multiset<E> {
   // Query Operations
 
   @Pure
   @Override
-  public boolean isEmpty() {
+  public boolean isEmpty(@Readonly AbstractMultiset<E> this) {
     return entrySet().isEmpty();
   }
 
   @Pure
   @Override
-  public boolean contains(@CheckForNull @UnknownSignedness Object element) {
+  public boolean contains(@Readonly AbstractMultiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object element) {
     return count(element) > 0;
   }
 
   // Modification Operations
   @CanIgnoreReturnValue
   @Override
-  public final boolean add(@ParametricNullness E element) {
+  public final boolean add(@Mutable AbstractMultiset<E> this, @ParametricNullness E element) {
     add(element, 1);
     return true;
   }
 
   @CanIgnoreReturnValue
   @Override
-  public int add(@ParametricNullness E element, int occurrences) {
+  public int add(@Mutable AbstractMultiset<E> this, @ParametricNullness E element, int occurrences) {
     throw new UnsupportedOperationException();
   }
 
   @CanIgnoreReturnValue
   @Override
-  public final boolean remove(@CheckForNull @UnknownSignedness Object element) {
+  public final boolean remove(@Mutable AbstractMultiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object element) {
     return remove(element, 1) > 0;
   }
 
   @CanIgnoreReturnValue
   @Override
-  public int remove(@CheckForNull Object element, int occurrences) {
+  public int remove(@Mutable AbstractMultiset<E> this, @CheckForNull @Readonly Object element, int occurrences) {
     throw new UnsupportedOperationException();
   }
 
   @CanIgnoreReturnValue
   @Override
-  public int setCount(@ParametricNullness E element, int count) {
+  public int setCount(@Mutable AbstractMultiset<E> this, @ParametricNullness E element, int count) {
     return setCountImpl(this, element, count);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean setCount(@ParametricNullness E element, int oldCount, int newCount) {
+  public boolean setCount(@Mutable AbstractMultiset<E> this, @ParametricNullness E element, int oldCount, int newCount) {
     return setCountImpl(this, element, oldCount, newCount);
   }
 
@@ -114,32 +120,32 @@ public boolean setCount(@ParametricNullness E element, int oldCount, int newCoun
    */
   @CanIgnoreReturnValue
   @Override
-  public final boolean addAll(Collection<? extends E> elementsToAdd) {
+  public final boolean addAll(@Mutable AbstractMultiset<E> this, @Readonly Collection<? extends E> elementsToAdd) {
     return Multisets.addAllImpl(this, elementsToAdd);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public final boolean removeAll(Collection<?> elementsToRemove) {
+  public final boolean removeAll(@Mutable AbstractMultiset<E> this, @Readonly Collection<?> elementsToRemove) {
     return Multisets.removeAllImpl(this, elementsToRemove);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public final boolean retainAll(Collection<?> elementsToRetain) {
+  public final boolean retainAll(@Mutable AbstractMultiset<E> this, @Readonly Collection<?> elementsToRetain) {
     return Multisets.retainAllImpl(this, elementsToRetain);
   }
 
   @Override
-  public abstract void clear();
+  public abstract void clear(@Mutable AbstractMultiset<E> this);
 
   // Views
 
-  @LazyInit @CheckForNull private transient Set<E> elementSet;
+  @LazyInit @CheckForNull private transient @Assignable Set<E> elementSet;
 
   @SideEffectFree
   @Override
-  public Set<E> elementSet() {
+  public @PolyMutable Set<E> elementSet(@PolyMutable AbstractMultiset<E> this) {
     Set<E> result = elementSet;
     if (result == null) {
       elementSet = result = createElementSet();
@@ -151,31 +157,33 @@ public Set<E> elementSet() {
    * Creates a new instance of this multiset's element set, which will be returned by {@link
    * #elementSet()}.
    */
-  Set<E> createElementSet() {
-    return new ElementSet();
+  @PolyMutable Set<E> createElementSet(@PolyMutable AbstractMultiset<E> this) {
+    return new @PolyMutable ElementSet();
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   class ElementSet extends Multisets.ElementSet<E> {
     @Override
-    Multiset<E> multiset() {
+    @PolyMutable Multiset<E> multiset(@PolyMutable AbstractMultiset<E>.ElementSet this) {
       return AbstractMultiset.this;
     }
 
     @Override
-    public Iterator<E> iterator() {
+    public Iterator<E> iterator(@Readonly ElementSet this) {
       return elementIterator();
     }
   }
 
-  abstract Iterator<E> elementIterator();
+  abstract Iterator<E> elementIterator(@Readonly AbstractMultiset<E> this);
 
-  @LazyInit @CheckForNull private transient Set<Entry<E>> entrySet;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @CheckForNull private transient @Assignable Set<Entry<E>> entrySet;
 
   @SideEffectFree
   @Override
-  public Set<Entry<E>> entrySet() {
-    Set<Entry<E>> result = entrySet;
+  public @PolyMutable Set<@PolyMutable Entry<E>> entrySet(@PolyMutable AbstractMultiset<E> this) {
+    Set<@PolyMutable Entry<E>> result = entrySet;
     if (result == null) {
       entrySet = result = createEntrySet();
     }
@@ -183,30 +191,31 @@ public Set<Entry<E>> entrySet() {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   class EntrySet extends Multisets.EntrySet<E> {
     @Override
-    Multiset<E> multiset() {
+    @PolyMutable  Multiset<E> multiset(@PolyMutable AbstractMultiset<E>.EntrySet this) {
       return AbstractMultiset.this;
     }
 
     @Override
-    public Iterator<Entry<E>> iterator() {
+    public Iterator<@PolyMutable Entry<E>> iterator(@PolyMutable AbstractMultiset<E>.EntrySet this) {
       return entryIterator();
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly EntrySet this) {
       return distinctElements();
     }
   }
 
-  Set<Entry<E>> createEntrySet() {
+  @PolyMutable Set<@PolyMutable Entry<E>> createEntrySet(@PolyMutable AbstractMultiset<E> this) {
     return new EntrySet();
   }
 
-  abstract Iterator<Entry<E>> entryIterator();
+  abstract Iterator<@PolyMutable Entry<E>> entryIterator(@PolyMutable AbstractMultiset<E> this);
 
-  abstract int distinctElements();
+  abstract int distinctElements(@Readonly AbstractMultiset<E> this);
 
   // Object methods
 
@@ -218,7 +227,7 @@ Set<Entry<E>> createEntrySet() {
    */
   @Pure
   @Override
-  public final boolean equals(@CheckForNull @UnknownSignedness Object object) {
+  public final boolean equals(@Readonly AbstractMultiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object object) {
     return Multisets.equalsImpl(this, object);
   }
 
@@ -229,7 +238,7 @@ public final boolean equals(@CheckForNull @UnknownSignedness Object object) {
    */
   @Pure
   @Override
-  public final int hashCode(@UnknownSignedness AbstractMultiset<E> this) {
+  public final int hashCode(@Readonly @UnknownSignedness AbstractMultiset<E> this) {
     return entrySet().hashCode();
   }
 
@@ -241,7 +250,7 @@ public final int hashCode(@UnknownSignedness AbstractMultiset<E> this) {
    */
   @Pure
   @Override
-  public final String toString() {
+  public final String toString(@Readonly AbstractMultiset<E> this) {
     return entrySet().toString();
   }
 }
diff --git a/guava/src/com/google/common/collect/AbstractNavigableMap.java b/guava/src/com/google/common/collect/AbstractNavigableMap.java
index 973b533d9dc7..487fed5f21a8 100644
--- a/guava/src/com/google/common/collect/AbstractNavigableMap.java
+++ b/guava/src/com/google/common/collect/AbstractNavigableMap.java
@@ -27,49 +27,57 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Skeletal implementation of {@link NavigableMap}.
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-abstract class AbstractNavigableMap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+abstract class AbstractNavigableMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends IteratorBasedAbstractMap<K, V> implements NavigableMap<K, V> {
 
   @Override
   @CheckForNull
-  public abstract V get(@CheckForNull @UnknownSignedness Object key);
+  public abstract V get(@Readonly AbstractNavigableMap<K,V> this, @CheckForNull @UnknownSignedness @Readonly Object key);
 
   @Override
   @CheckForNull
-  public Entry<K, V> firstEntry() {
+  public @PolyMutable Entry<K, V> firstEntry(@PolyMutable AbstractNavigableMap<K,V> this) {
     return Iterators.getNext(entryIterator(), null);
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> lastEntry() {
+  public @PolyMutable Entry<K, V> lastEntry(@PolyMutable AbstractNavigableMap<K,V> this) {
     return Iterators.getNext(descendingEntryIterator(), null);
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> pollFirstEntry() {
+  public Entry<K, V> pollFirstEntry(@Mutable AbstractNavigableMap<K,V> this) {
     return Iterators.pollNext(entryIterator());
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> pollLastEntry() {
+  public Entry<K, V> pollLastEntry(@Mutable AbstractNavigableMap<K,V> this) {
     return Iterators.pollNext(descendingEntryIterator());
   }
 
   @Override
   @ParametricNullness
-  public @KeyFor("this") K firstKey() {
+  public @KeyFor("this") K firstKey(@Readonly AbstractNavigableMap<K,V> this) {
     Entry<K, V> entry = firstEntry();
     if (entry == null) {
       throw new NoSuchElementException();
@@ -80,7 +88,7 @@ public Entry<K, V> pollLastEntry() {
 
   @Override
   @ParametricNullness
-  public @KeyFor("this") K lastKey() {
+  public @KeyFor("this") K lastKey(@Readonly AbstractNavigableMap<K,V> this) {
     Entry<K, V> entry = lastEntry();
     if (entry == null) {
       throw new NoSuchElementException();
@@ -91,97 +99,98 @@ public Entry<K, V> pollLastEntry() {
 
   @Override
   @CheckForNull
-  public Entry<K, V> lowerEntry(@ParametricNullness K key) {
+  public @PolyMutable Entry<K, V> lowerEntry(@PolyMutable AbstractNavigableMap<K,V> this, @ParametricNullness K key) {
     return headMap(key, false).lastEntry();
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> floorEntry(@ParametricNullness K key) {
+  public @PolyMutable Entry<K, V> floorEntry(@PolyMutable AbstractNavigableMap<K,V> this, @ParametricNullness K key) {
     return headMap(key, true).lastEntry();
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> ceilingEntry(@ParametricNullness K key) {
+  public @PolyMutable Entry<K, V> ceilingEntry(@PolyMutable AbstractNavigableMap<K,V> this, @ParametricNullness K key) {
     return tailMap(key, true).firstEntry();
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> higherEntry(@ParametricNullness K key) {
+  public @PolyMutable Entry<K, V> higherEntry(@PolyMutable AbstractNavigableMap<K,V> this, @ParametricNullness K key) {
     return tailMap(key, false).firstEntry();
   }
 
   @Override
   @CheckForNull
-  public K lowerKey(@ParametricNullness K key) {
+  public K lowerKey(@Readonly AbstractNavigableMap<K,V> this, @ParametricNullness K key) {
     return Maps.keyOrNull(lowerEntry(key));
   }
 
   @Override
   @CheckForNull
-  public K floorKey(@ParametricNullness K key) {
+  public K floorKey(@Readonly AbstractNavigableMap<K,V> this, @ParametricNullness K key) {
     return Maps.keyOrNull(floorEntry(key));
   }
 
   @Override
   @CheckForNull
-  public K ceilingKey(@ParametricNullness K key) {
+  public K ceilingKey(@Readonly AbstractNavigableMap<K,V> this, @ParametricNullness K key) {
     return Maps.keyOrNull(ceilingEntry(key));
   }
 
   @Override
   @CheckForNull
-  public K higherKey(@ParametricNullness K key) {
+  public K higherKey(@Readonly AbstractNavigableMap<K,V> this, @ParametricNullness K key) {
     return Maps.keyOrNull(higherEntry(key));
   }
 
-  abstract Iterator<Entry<K, V>> descendingEntryIterator();
+  abstract Iterator<@PolyMutable Entry<K, V>> descendingEntryIterator(@PolyMutable AbstractNavigableMap<K,V> this);
 
   @Override
-  public SortedMap<K, V> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
+  public @PolyMutable SortedMap<K, V> subMap(@PolyMutable AbstractNavigableMap<K,V> this, @ParametricNullness K fromKey, @ParametricNullness K toKey) {
     return subMap(fromKey, true, toKey, false);
   }
 
   @Override
-  public SortedMap<K, V> headMap(@ParametricNullness K toKey) {
+  public @PolyMutable SortedMap<K, V> headMap(@PolyMutable AbstractNavigableMap<K,V> this, @ParametricNullness K toKey) {
     return headMap(toKey, false);
   }
 
   @Override
-  public SortedMap<K, V> tailMap(@ParametricNullness K fromKey) {
+  public @PolyMutable SortedMap<K, V> tailMap(@PolyMutable AbstractNavigableMap<K,V> this, @ParametricNullness K fromKey) {
     return tailMap(fromKey, true);
   }
 
   @Override
-  public NavigableSet<@KeyFor({"this"}) K> navigableKeySet() {
+  public @PolyMutable NavigableSet<@KeyFor({"this"}) K> navigableKeySet(@PolyMutable AbstractNavigableMap<K,V> this) {
     return new Maps.NavigableKeySet<>(this);
   }
 
   @Override
-  public Set<@KeyFor({"this"}) K> keySet() {
+  public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable AbstractNavigableMap<K,V> this) {
     return navigableKeySet();
   }
 
   @Override
-  public NavigableSet<@KeyFor({"this"}) K> descendingKeySet() {
+  public @PolyMutable NavigableSet<@KeyFor({"this"}) K> descendingKeySet(@PolyMutable AbstractNavigableMap<K,V> this) {
     return descendingMap().navigableKeySet();
   }
 
   @Override
-  public NavigableMap<K, V> descendingMap() {
-    return new DescendingMap();
+  public @PolyMutable NavigableMap<K, V> descendingMap(@PolyMutable AbstractNavigableMap<K,V> this) {
+    return new @PolyMutable DescendingMap();
   }
 
+  @ReceiverDependentMutable
   private final class DescendingMap extends Maps.DescendingMap<K, V> {
     @Override
-    NavigableMap<K, V> forward() {
+    @PolyMutable NavigableMap<K, V> forward(@PolyMutable AbstractNavigableMap<K, V>.DescendingMap this) {
       return AbstractNavigableMap.this;
     }
 
     @Override
-    Iterator<Entry<K, V>> entryIterator() {
+    Iterator<@PolyMutable Entry<K, V>> entryIterator(@PolyMutable AbstractNavigableMap<K, V>.DescendingMap this) {
       return descendingEntryIterator();
     }
   }
diff --git a/guava/src/com/google/common/collect/AbstractRangeSet.java b/guava/src/com/google/common/collect/AbstractRangeSet.java
index 69a93db47e11..f77d63c3f00f 100644
--- a/guava/src/com/google/common/collect/AbstractRangeSet.java
+++ b/guava/src/com/google/common/collect/AbstractRangeSet.java
@@ -16,72 +16,78 @@
 
 import com.google.common.annotations.GwtIncompatible;
 import javax.annotation.CheckForNull;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A skeletal implementation of {@code RangeSet}.
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-abstract class AbstractRangeSet<C extends Comparable> implements RangeSet<C> {
+@ReceiverDependentMutable
+abstract class AbstractRangeSet<C extends @Readonly Comparable> implements RangeSet<C> {
   AbstractRangeSet() {}
 
   @Override
-  public boolean contains(C value) {
+  public boolean contains(@Readonly AbstractRangeSet<C> this, C value) {
     return rangeContaining(value) != null;
   }
 
   @Override
   @CheckForNull
-  public abstract Range<C> rangeContaining(C value);
+  public abstract Range<C> rangeContaining(@Readonly AbstractRangeSet<C> this, C value);
 
   @Override
-  public boolean isEmpty() {
+  public boolean isEmpty(@Readonly AbstractRangeSet<C> this) {
     return asRanges().isEmpty();
   }
 
   @Override
-  public void add(Range<C> range) {
+  public void add(@Mutable AbstractRangeSet<C> this, @Readonly Range<C> range) {
     throw new UnsupportedOperationException();
   }
 
   @Override
-  public void remove(Range<C> range) {
+  public void remove(@Mutable AbstractRangeSet<C> this, @Readonly Range<C> range) {
     throw new UnsupportedOperationException();
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable AbstractRangeSet<C> this) {
     remove(Range.<C>all());
   }
 
   @Override
-  public boolean enclosesAll(RangeSet<C> other) {
+  public boolean enclosesAll(@Mutable AbstractRangeSet<C> this, @Readonly RangeSet<C> other) {
     return enclosesAll(other.asRanges());
   }
 
   @Override
-  public void addAll(RangeSet<C> other) {
+  public void addAll(@Mutable AbstractRangeSet<C> this, @Readonly RangeSet<C> other) {
     addAll(other.asRanges());
   }
 
   @Override
-  public void removeAll(RangeSet<C> other) {
+  public void removeAll(@Mutable AbstractRangeSet<C> this, @Readonly RangeSet<C> other) {
     removeAll(other.asRanges());
   }
 
   @Override
-  public boolean intersects(Range<C> otherRange) {
+  public boolean intersects(@Mutable AbstractRangeSet<C> this, @Readonly Range<C> otherRange) {
     return !subRangeSet(otherRange).isEmpty();
   }
 
   @Override
-  public abstract boolean encloses(Range<C> otherRange);
+  public abstract boolean encloses(@Mutable AbstractRangeSet<C> this, @Readonly Range<C> otherRange);
 
   @Override
-  public boolean equals(@CheckForNull Object obj) {
+  public boolean equals(@Readonly AbstractRangeSet<C> this, @CheckForNull @Readonly Object obj) {
     if (obj == this) {
       return true;
     } else if (obj instanceof RangeSet) {
@@ -92,12 +98,12 @@ public boolean equals(@CheckForNull Object obj) {
   }
 
   @Override
-  public final int hashCode(@UnknownSignedness AbstractRangeSet<C> this) {
+  public final int hashCode(@UnknownSignedness @Readonly AbstractRangeSet<C> this) {
     return asRanges().hashCode();
   }
 
   @Override
-  public final String toString() {
+  public final String toString(@Readonly AbstractRangeSet<C> this) {
     return asRanges().toString();
   }
 }
diff --git a/guava/src/com/google/common/collect/AbstractSequentialIterator.java b/guava/src/com/google/common/collect/AbstractSequentialIterator.java
index 172fe356cb78..ccb27a08d04b 100644
--- a/guava/src/com/google/common/collect/AbstractSequentialIterator.java
+++ b/guava/src/com/google/common/collect/AbstractSequentialIterator.java
@@ -20,6 +20,9 @@
 import java.util.NoSuchElementException;
 import javax.annotation.CheckForNull;
 
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.CFComment;
+
 /**
  * This class provides a skeletal implementation of the {@code Iterator} interface for sequences
  * whose next element can always be derived from the previous element. Null elements are not
@@ -41,6 +44,8 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@CFComment("AOSEN: Is this a design issue?")
+@ReceiverDependentMutable
 public abstract class AbstractSequentialIterator<T> extends UnmodifiableIterator<T> {
   @CheckForNull private T nextOrNull;
 
diff --git a/guava/src/com/google/common/collect/AbstractSetMultimap.java b/guava/src/com/google/common/collect/AbstractSetMultimap.java
index 00b2603d9e5b..c1c673a07e76 100644
--- a/guava/src/com/google/common/collect/AbstractSetMultimap.java
+++ b/guava/src/com/google/common/collect/AbstractSetMultimap.java
@@ -25,6 +25,11 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -36,31 +41,32 @@
  *
  * @author Jared Levy
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class AbstractSetMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+abstract class AbstractSetMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractMapBasedMultimap<K, V> implements SetMultimap<K, V> {
   /**
    * Creates a new multimap that uses the provided map.
    *
    * @param map place to store the mapping from each key to its corresponding values
    */
-  protected AbstractSetMultimap(Map<K, Collection<V>> map) {
+  protected AbstractSetMultimap(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map) {
     super(map);
   }
 
   @Override
-  abstract Set<V> createCollection();
+  abstract @PolyMutable Set<V> createCollection(@PolyMutable AbstractSetMultimap<K, V> this);
 
   @Override
-  Set<V> createUnmodifiableEmptyCollection() {
+  @Readonly Set<V> createUnmodifiableEmptyCollection() {
     return Collections.emptySet();
   }
 
   @Override
-  <E extends @Nullable Object> Collection<E> unmodifiableCollectionSubclass(
-      Collection<E> collection) {
+  <E extends @Nullable @Readonly Object> @Readonly Collection<E> unmodifiableCollectionSubclass(
+      @Readonly Collection<E> collection) {
     return Collections.unmodifiableSet((Set<E>) collection);
   }
 
@@ -78,8 +84,8 @@ Collection<V> wrapCollection(@ParametricNullness K key, Collection<V> collection
    * {@link Set}, instead of the {@link Collection} specified in the {@link Multimap} interface.
    */
   @Override
-  public Set<V> get(@ParametricNullness K key) {
-    return (Set<V>) super.get(key);
+  public @PolyMutable Set<V> get(@PolyMutable AbstractSetMultimap<K, V> this, @ParametricNullness K key) {
+    return (@PolyMutable Set<V>) super.get(key);
   }
 
   /**
@@ -90,8 +96,8 @@ public Set<V> get(@ParametricNullness K key) {
    */
   @SideEffectFree
   @Override
-  public Set<Entry<K, V>> entries() {
-    return (Set<Entry<K, V>>) super.entries();
+  public @PolyMutable Set<@PolyMutable Entry<K, V>> entries(@PolyMutable AbstractSetMultimap<K, V> this) {
+    return (@PolyMutable Set<@PolyMutable Entry<K, V>>) super.entries();
   }
 
   /**
@@ -102,8 +108,8 @@ public Set<Entry<K, V>> entries() {
    */
   @CanIgnoreReturnValue
   @Override
-  public Set<V> removeAll(@CheckForNull Object key) {
-    return (Set<V>) super.removeAll(key);
+  public @Readonly Set<V> removeAll(@Mutable AbstractSetMultimap<K, V> this, @CheckForNull @Readonly Object key) {
+    return (@Readonly Set<V>) super.removeAll(key);
   }
 
   /**
@@ -116,8 +122,8 @@ public Set<V> removeAll(@CheckForNull Object key) {
    */
   @CanIgnoreReturnValue
   @Override
-  public Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
-    return (Set<V>) super.replaceValues(key, values);
+  public @Readonly Set<V> replaceValues(@Mutable AbstractSetMultimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values) {
+    return (@Readonly Set<V>) super.replaceValues(key, values);
   }
 
   /**
@@ -127,7 +133,7 @@ public Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> val
    * values.
    */
   @Override
-  public Map<K, Collection<V>> asMap() {
+  public @PolyMutable Map<K, @PolyMutable Collection<V>> asMap(@PolyMutable AbstractSetMultimap<K, V> this) {
     return super.asMap();
   }
 
@@ -141,7 +147,7 @@ public Map<K, Collection<V>> asMap() {
    */
   @CanIgnoreReturnValue
   @Override
-  public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
+  public boolean put(@Mutable AbstractSetMultimap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
     return super.put(key, value);
   }
 
@@ -153,7 +159,7 @@ public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
    */
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@Readonly AbstractSetMultimap<K, V> this,  @CheckForNull @Readonly Object object) {
     return super.equals(object);
   }
 
diff --git a/guava/src/com/google/common/collect/AbstractSortedKeySortedSetMultimap.java b/guava/src/com/google/common/collect/AbstractSortedKeySortedSetMultimap.java
index c2a0d06bd96b..e281c09749e7 100644
--- a/guava/src/com/google/common/collect/AbstractSortedKeySortedSetMultimap.java
+++ b/guava/src/com/google/common/collect/AbstractSortedKeySortedSetMultimap.java
@@ -23,6 +23,11 @@
 import java.util.SortedSet;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Basic implementation of a {@link SortedSetMultimap} with a sorted key set.
@@ -32,33 +37,35 @@
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@ReceiverDependentMutable
 abstract class AbstractSortedKeySortedSetMultimap<
-        K extends @Nullable Object, V extends @Nullable Object>
+        K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractSortedSetMultimap<K, V> {
 
-  AbstractSortedKeySortedSetMultimap(SortedMap<K, Collection<V>> map) {
+  AbstractSortedKeySortedSetMultimap(@ReceiverDependentMutable SortedMap<K, @ReceiverDependentMutable Collection<V>> map) {
     super(map);
   }
 
   @Override
-  public SortedMap<K, Collection<V>> asMap() {
-    return (SortedMap<K, Collection<V>>) super.asMap();
+  public @PolyMutable SortedMap<K, @PolyMutable Collection<V>> asMap(@PolyMutable AbstractSortedKeySortedSetMultimap<K, V> this) {
+    return (@PolyMutable SortedMap<K, @PolyMutable Collection<V>>) super.asMap();
   }
 
   @Override
-  SortedMap<K, Collection<V>> backingMap() {
-    return (SortedMap<K, Collection<V>>) super.backingMap();
+  @PolyMutable SortedMap<K, @PolyMutable Collection<V>> backingMap(@PolyMutable AbstractSortedKeySortedSetMultimap<K, V> this) {
+    return (@PolyMutable SortedMap<K, @PolyMutable Collection<V>>) super.backingMap();
   }
 
   @Override
-  public SortedSet<K> keySet() {
-    return (SortedSet<K>) super.keySet();
+  public @PolyMutable SortedSet<K> keySet(@PolyMutable AbstractSortedKeySortedSetMultimap<K, V> this) {
+    return (@PolyMutable SortedSet<K>) super.keySet();
   }
 
   @Override
-  Set<K> createKeySet() {
+  @PolyMutable Set<K> createKeySet(@PolyMutable AbstractSortedKeySortedSetMultimap<K, V> this) {
     return createMaybeNavigableKeySet();
   }
 }
diff --git a/guava/src/com/google/common/collect/AbstractSortedMultiset.java b/guava/src/com/google/common/collect/AbstractSortedMultiset.java
index 621e8f98a5e2..f9e5033d84cf 100644
--- a/guava/src/com/google/common/collect/AbstractSortedMultiset.java
+++ b/guava/src/com/google/common/collect/AbstractSortedMultiset.java
@@ -23,6 +23,8 @@
 import java.util.NavigableSet;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * This class provides a skeletal implementation of the {@link SortedMultiset} interface.
@@ -35,7 +37,8 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-abstract class AbstractSortedMultiset<E extends @Nullable Object> extends AbstractMultiset<E>
+@ReceiverDependentMutable
+abstract class AbstractSortedMultiset<E extends @Nullable @Readonly Object> extends AbstractMultiset<E>
     implements SortedMultiset<E> {
   @GwtTransient final Comparator<? super E> comparator;
 
diff --git a/guava/src/com/google/common/collect/AbstractSortedSetMultimap.java b/guava/src/com/google/common/collect/AbstractSortedSetMultimap.java
index 9dc81b1b8057..017381269e8a 100644
--- a/guava/src/com/google/common/collect/AbstractSortedSetMultimap.java
+++ b/guava/src/com/google/common/collect/AbstractSortedSetMultimap.java
@@ -25,6 +25,11 @@
 import java.util.SortedSet;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -35,31 +40,32 @@
  *
  * @author Jared Levy
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class AbstractSortedSetMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+abstract class AbstractSortedSetMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractSetMultimap<K, V> implements SortedSetMultimap<K, V> {
   /**
    * Creates a new multimap that uses the provided map.
    *
    * @param map place to store the mapping from each key to its corresponding values
    */
-  protected AbstractSortedSetMultimap(Map<K, Collection<V>> map) {
+  protected AbstractSortedSetMultimap(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map) {
     super(map);
   }
 
   @Override
-  abstract SortedSet<V> createCollection();
+  abstract @PolyMutable SortedSet<V> createCollection(@PolyMutable AbstractSortedSetMultimap<K,V> this);
 
   @Override
-  SortedSet<V> createUnmodifiableEmptyCollection() {
+  @Readonly SortedSet<V> createUnmodifiableEmptyCollection(@Readonly AbstractSortedSetMultimap<K, V> this) {
     return unmodifiableCollectionSubclass(createCollection());
   }
 
   @Override
-  <E extends @Nullable Object> SortedSet<E> unmodifiableCollectionSubclass(
-      Collection<E> collection) {
+  <E extends @Nullable @Readonly Object> @Readonly SortedSet<E> unmodifiableCollectionSubclass(
+          @Readonly Collection<E> collection) {
     if (collection instanceof NavigableSet) {
       return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
     } else {
@@ -89,8 +95,8 @@ Collection<V> wrapCollection(@ParametricNullness K key, Collection<V> collection
    * Multimap} interface.
    */
   @Override
-  public SortedSet<V> get(@ParametricNullness K key) {
-    return (SortedSet<V>) super.get(key);
+  public @PolyMutable SortedSet<V> get(@PolyMutable AbstractSortedSetMultimap<K, V> this, @ParametricNullness K key) {
+    return (@PolyMutable SortedSet<V>) super.get(key);
   }
 
   /**
@@ -102,8 +108,8 @@ public SortedSet<V> get(@ParametricNullness K key) {
    */
   @CanIgnoreReturnValue
   @Override
-  public SortedSet<V> removeAll(@CheckForNull Object key) {
-    return (SortedSet<V>) super.removeAll(key);
+  public @Readonly SortedSet<V> removeAll(@Mutable AbstractSortedSetMultimap<K, V> this, @CheckForNull @Readonly Object key) {
+    return (@Readonly SortedSet<V>) super.removeAll(key);
   }
 
   /**
@@ -118,8 +124,8 @@ public SortedSet<V> removeAll(@CheckForNull Object key) {
    */
   @CanIgnoreReturnValue
   @Override
-  public SortedSet<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
-    return (SortedSet<V>) super.replaceValues(key, values);
+  public @Readonly SortedSet<V> replaceValues(@Mutable AbstractSortedSetMultimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values) {
+    return (@Readonly SortedSet<V>) super.replaceValues(key, values);
   }
 
   /**
@@ -135,7 +141,7 @@ public SortedSet<V> replaceValues(@ParametricNullness K key, Iterable<? extends
    * SortedSet} values.
    */
   @Override
-  public Map<K, Collection<V>> asMap() {
+  public @PolyMutable Map<K, @PolyMutable Collection<V>> asMap(@PolyMutable AbstractSortedSetMultimap<K,V> this) {
     return super.asMap();
   }
 
@@ -147,7 +153,7 @@ public Map<K, Collection<V>> asMap() {
    */
   @SideEffectFree
   @Override
-  public Collection<V> values() {
+  public @PolyMutable Collection<V> values(@PolyMutable AbstractSortedSetMultimap<K,V> this) {
     return super.values();
   }
 
diff --git a/guava/src/com/google/common/collect/AbstractTable.java b/guava/src/com/google/common/collect/AbstractTable.java
index 97ce8fbeffcf..cca1d930f857 100644
--- a/guava/src/com/google/common/collect/AbstractTable.java
+++ b/guava/src/com/google/common/collect/AbstractTable.java
@@ -28,41 +28,51 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * Skeletal, implementation-agnostic implementation of the {@link Table} interface.
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@ReceiverDependentMutable
 abstract class AbstractTable<
-        R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+        R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Readonly @Nullable Object>
     implements Table<R, C, V> {
 
   @Override
-  public boolean containsRow(@CheckForNull Object rowKey) {
+  public boolean containsRow(@Readonly AbstractTable<R, C, V> this, @CheckForNull @Readonly Object rowKey) {
     return Maps.safeContainsKey(rowMap(), rowKey);
   }
 
   @Override
-  public boolean containsColumn(@CheckForNull Object columnKey) {
+  public boolean containsColumn(@Readonly AbstractTable<R, C, V> this, @CheckForNull @Readonly Object columnKey) {
     return Maps.safeContainsKey(columnMap(), columnKey);
   }
 
   @Override
-  public Set<R> rowKeySet() {
+  public @PolyMutable Set<R> rowKeySet(@PolyMutable AbstractTable<R, C, V> this) {
     return rowMap().keySet();
   }
 
   @Override
-  public Set<C> columnKeySet() {
+  public @PolyMutable Set<C> columnKeySet(@PolyMutable AbstractTable<R, C, V> this) {
     return columnMap().keySet();
   }
 
   @Override
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@Readonly AbstractTable<R, C, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
     for (Map<C, V> row : rowMap().values()) {
       if (row.containsValue(value)) {
         return true;
@@ -72,32 +82,32 @@ public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
   }
 
   @Override
-  public boolean contains(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+  public boolean contains(@Readonly AbstractTable<R, C, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
     Map<C, V> row = Maps.safeGet(rowMap(), rowKey);
     return row != null && Maps.safeContainsKey(row, columnKey);
   }
 
   @Override
   @CheckForNull
-  public V get(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+  public V get(@Readonly AbstractTable<R, C, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
     Map<C, V> row = Maps.safeGet(rowMap(), rowKey);
     return (row == null) ? null : Maps.safeGet(row, columnKey);
   }
 
   @Override
-  public boolean isEmpty() {
+  public boolean isEmpty(@Readonly AbstractTable<R, C, V> this) {
     return size() == 0;
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable AbstractTable<R, C, V> this) {
     Iterators.clear(cellSet().iterator());
   }
 
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V remove(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+  public V remove(@Mutable AbstractTable<R, C, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
     Map<C, V> row = Maps.safeGet(rowMap(), rowKey);
     return (row == null) ? null : Maps.safeRemove(row, columnKey);
   }
@@ -105,38 +115,39 @@ public V remove(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V put(
+  public V put(@Mutable AbstractTable<R, C, V> this,
       @ParametricNullness R rowKey, @ParametricNullness C columnKey, @ParametricNullness V value) {
     return row(rowKey).put(columnKey, value);
   }
 
   @Override
-  public void putAll(Table<? extends R, ? extends C, ? extends V> table) {
+  public void putAll(@Mutable AbstractTable<R, C, V> this, Table<? extends R, ? extends C, ? extends V> table) {
     for (Table.Cell<? extends R, ? extends C, ? extends V> cell : table.cellSet()) {
       put(cell.getRowKey(), cell.getColumnKey(), cell.getValue());
     }
   }
-
-  @LazyInit @CheckForNull private transient Set<Cell<R, C, V>> cellSet;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @CheckForNull private transient @Assignable Set<Cell<R, C, V>> cellSet;
 
   @Override
-  public Set<Cell<R, C, V>> cellSet() {
+  public @PolyMutable Set<Cell<R, C, V>> cellSet(@PolyMutable AbstractTable<R, C, V> this) {
     Set<Cell<R, C, V>> result = cellSet;
     return (result == null) ? cellSet = createCellSet() : result;
   }
 
-  Set<Cell<R, C, V>> createCellSet() {
-    return new CellSet();
+  @PolyMutable Set<Cell<R, C, V>> createCellSet(@PolyMutable AbstractTable<R, C, V> this) {
+    return new @PolyMutable CellSet();
   }
 
-  abstract Iterator<Table.Cell<R, C, V>> cellIterator();
+  abstract Iterator<Table.Cell<R, C, V>> cellIterator(@Readonly AbstractTable<R, C, V> this);
 
-  abstract Spliterator<Table.Cell<R, C, V>> cellSpliterator();
+  abstract Spliterator<Table.Cell<R, C, V>> cellSpliterator(@Readonly AbstractTable<R, C, V> this);
 
   @WeakOuter
+  @ReceiverDependentMutable 
   class CellSet extends AbstractSet<Cell<R, C, V>> {
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly CellSet this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (o instanceof Cell) {
         Cell<?, ?, ?> cell = (Cell<?, ?, ?>) o;
         Map<C, V> row = Maps.safeGet(rowMap(), cell.getRowKey());
@@ -148,7 +159,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable CellSet this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (o instanceof Cell) {
         Cell<?, ?, ?> cell = (Cell<?, ?, ?>) o;
         Map<C, V> row = Maps.safeGet(rowMap(), cell.getRowKey());
@@ -160,7 +171,7 @@ public boolean remove(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable CellSet this) {
       AbstractTable.this.clear();
     }
 
@@ -175,24 +186,25 @@ public Spliterator<Cell<R, C, V>> spliterator() {
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly CellSet this) {
       return AbstractTable.this.size();
     }
   }
 
-  @LazyInit @CheckForNull private transient Collection<V> values;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @CheckForNull private transient @Assignable Collection<V> values;
 
   @Override
-  public Collection<V> values() {
+  public @PolyMutable Collection<V> values(@PolyMutable AbstractTable<R, C, V> this) {
     Collection<V> result = values;
     return (result == null) ? values = createValues() : result;
   }
 
-  Collection<V> createValues() {
-    return new Values();
+  @PolyMutable Collection<V> createValues(@PolyMutable AbstractTable<R, C, V> this) {
+    return new @PolyMutable Values();
   }
 
-  Iterator<V> valuesIterator() {
+  Iterator<V> valuesIterator(@Readonly AbstractTable<R, C, V> this) {
     return new TransformedIterator<Cell<R, C, V>, V>(cellSet().iterator()) {
       @Override
       @ParametricNullness
@@ -202,51 +214,52 @@ V transform(Cell<R, C, V> cell) {
     };
   }
 
-  Spliterator<V> valuesSpliterator() {
+  Spliterator<V> valuesSpliterator(@Readonly AbstractTable<R, C, V> this) {
     return CollectSpliterators.map(cellSpliterator(), Table.Cell::getValue);
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   class Values extends AbstractCollection<V> {
     @Override
-    public Iterator<V> iterator() {
+    public Iterator<V> iterator(@Readonly Values this) {
       return valuesIterator();
     }
 
     @Override
-    public Spliterator<V> spliterator() {
+    public Spliterator<V> spliterator(@Readonly Values this) {
       return valuesSpliterator();
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly Values this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       return containsValue(o);
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable Values this) {
       AbstractTable.this.clear();
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly Values this) {
       return AbstractTable.this.size();
     }
   }
 
   @Override
-  public boolean equals(@CheckForNull Object obj) {
+  public boolean equals(@Readonly AbstractTable<R, C, V> this, @CheckForNull @Readonly Object obj) {
     return Tables.equalsImpl(this, obj);
   }
 
   @Override
-  public int hashCode(@UnknownSignedness AbstractTable<R, C, V> this) {
+  public int hashCode(@UnknownSignedness @Readonly AbstractTable<R, C, V> this) {
     return cellSet().hashCode();
   }
 
   /** Returns the string representation {@code rowMap().toString()}. */
   @Override
-  public String toString() {
+  public String toString(@Readonly AbstractTable<R, C, V> this) {
     return rowMap().toString();
   }
 }
diff --git a/guava/src/com/google/common/collect/AllEqualOrdering.java b/guava/src/com/google/common/collect/AllEqualOrdering.java
index f6ca6faff797..72c447f6d630 100644
--- a/guava/src/com/google/common/collect/AllEqualOrdering.java
+++ b/guava/src/com/google/common/collect/AllEqualOrdering.java
@@ -21,36 +21,39 @@
 import java.util.List;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * An ordering that treats all references as equals, even nulls.
  *
  * @author Emily Soldal
  */
+@AnnotatedFor("pico")
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-final class AllEqualOrdering extends Ordering<@Nullable Object> implements Serializable {
+final class AllEqualOrdering extends Ordering<@Nullable @Readonly Object> implements Serializable {
   static final AllEqualOrdering INSTANCE = new AllEqualOrdering();
 
   @Override
-  public int compare(@CheckForNull Object left, @CheckForNull Object right) {
+  public int compare(@CheckForNull @Readonly Object left, @CheckForNull @Readonly Object right) {
     return 0;
   }
 
   @Override
-  public <E extends @Nullable Object> List<E> sortedCopy(Iterable<E> iterable) {
+  public <E extends @Nullable @Readonly Object> List<E> sortedCopy(Iterable<E> iterable) {
     return Lists.newArrayList(iterable);
   }
 
   @Override
   @SuppressWarnings("nullness") // unsafe: see supertype
-  public <E extends @Nullable Object> ImmutableList<E> immutableSortedCopy(Iterable<E> iterable) {
+  public <E extends @Nullable @Readonly Object> ImmutableList<E> immutableSortedCopy(Iterable<E> iterable) {
     return ImmutableList.copyOf(iterable);
   }
 
   @SuppressWarnings("unchecked")
   @Override
-  public <S extends @Nullable Object> Ordering<S> reverse() {
+  public <S extends @Nullable @Readonly Object> Ordering<S> reverse() {
     return (Ordering<S>) this;
   }
 
diff --git a/guava/src/com/google/common/collect/ArrayListMultimap.java b/guava/src/com/google/common/collect/ArrayListMultimap.java
index 524fb40e9280..94a52e96491c 100644
--- a/guava/src/com/google/common/collect/ArrayListMultimap.java
+++ b/guava/src/com/google/common/collect/ArrayListMultimap.java
@@ -30,6 +30,11 @@
 import java.util.List;
 import java.util.Map;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -61,10 +66,11 @@
  * @author Jared Levy
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class ArrayListMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public final class ArrayListMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends ArrayListMultimapGwtSerializationDependencies<K, V> {
   // Default from ArrayList
   private static final int DEFAULT_VALUES_PER_KEY = 3;
@@ -77,8 +83,7 @@ public final class ArrayListMultimap<K extends @Nullable Object, V extends @Null
    * <p>This method will soon be deprecated in favor of {@code
    * MultimapBuilder.hashKeys().arrayListValues().build()}.
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      ArrayListMultimap<K, V> create() {
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> ArrayListMultimap<K, V> create() {
     return new ArrayListMultimap<>();
   }
 
@@ -94,8 +99,8 @@ ArrayListMultimap<K, V> create() {
    * @throws IllegalArgumentException if {@code expectedKeys} or {@code expectedValuesPerKey} is
    *     negative
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      ArrayListMultimap<K, V> create(int expectedKeys, int expectedValuesPerKey) {
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+  ArrayListMultimap<K, V> create(int expectedKeys, int expectedValuesPerKey) {
     return new ArrayListMultimap<>(expectedKeys, expectedValuesPerKey);
   }
 
@@ -107,9 +112,9 @@ ArrayListMultimap<K, V> create(int expectedKeys, int expectedValuesPerKey) {
    *
    * @param multimap the multimap whose contents are copied to this multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      ArrayListMultimap<K, V> create(Multimap<? extends K, ? extends V> multimap) {
-    return new ArrayListMultimap<>(multimap);
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+    @PolyMutable ArrayListMultimap<K, V> create(@PolyMutable Multimap<? extends K, ? extends V> multimap) {
+    return new @PolyMutable ArrayListMultimap<>(multimap);
   }
 
   private ArrayListMultimap() {
@@ -117,12 +122,12 @@ private ArrayListMultimap() {
   }
 
   private ArrayListMultimap(int expectedKeys, int expectedValuesPerKey) {
-    super(Platform.<K, Collection<V>>newHashMapWithExpectedSize(expectedKeys));
+    super(Platform.<K, @ReceiverDependentMutable Collection<V>>newHashMapWithExpectedSize(expectedKeys));
     checkNonnegative(expectedValuesPerKey, "expectedValuesPerKey");
     this.expectedValuesPerKey = expectedValuesPerKey;
   }
 
-  private ArrayListMultimap(Multimap<? extends K, ? extends V> multimap) {
+  private ArrayListMultimap(@ReceiverDependentMutable Multimap<? extends K, ? extends V> multimap) {
     this(
         multimap.keySet().size(),
         (multimap instanceof ArrayListMultimap)
@@ -135,8 +140,8 @@ private ArrayListMultimap(Multimap<? extends K, ? extends V> multimap) {
    * Creates a new, empty {@code ArrayList} to hold the collection of values for an arbitrary key.
    */
   @Override
-  List<V> createCollection() {
-    return new ArrayList<V>(expectedValuesPerKey);
+  @PolyMutable List<V> createCollection(@PolyMutable ArrayListMultimap<K, V> this) {
+    return new @PolyMutable ArrayList<V>(expectedValuesPerKey);
   }
 
   /**
@@ -147,7 +152,7 @@ List<V> createCollection() {
    *     call, or switch to a {@code HashMap<K, ArrayList<V>>}.
    */
   @Deprecated
-  public void trimToSize() {
+  public void trimToSize(@Mutable ArrayListMultimap<K, V> this) {
     for (Collection<V> collection : backingMap().values()) {
       ArrayList<V> arrayList = (ArrayList<V>) collection;
       arrayList.trimToSize();
@@ -178,31 +183,31 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
   private static final long serialVersionUID = 0;
 
 @Override
-public boolean containsEntry(@Nullable Object arg0, @Nullable Object arg1) { return super.containsEntry(arg0, arg1); }
+public boolean containsEntry(@Readonly ArrayListMultimap<K, V> this, @Nullable @Readonly Object arg0, @Nullable @Readonly Object arg1) { return super.containsEntry(arg0, arg1); }
 
 @Override
-public boolean containsKey(@Nullable @UnknownSignedness Object arg0) { return super.containsKey(arg0); }
+public boolean containsKey(@Readonly ArrayListMultimap<K, V> this, @Nullable @UnknownSignedness @Readonly Object arg0) { return super.containsKey(arg0); }
 
 @Override
-public boolean containsValue(@Nullable @UnknownSignedness Object arg0) { return super.containsValue(arg0); }
+public boolean containsValue(@Readonly ArrayListMultimap<K, V> this, @Nullable @UnknownSignedness @Readonly Object arg0) { return super.containsValue(arg0); }
 
 @Override
-public boolean equals(@Nullable Object arg0) { return super.equals(arg0); }
+public boolean equals(@Readonly ArrayListMultimap<K, V> this, @Nullable @Readonly Object arg0) { return super.equals(arg0); }
 
 @Pure
 @Override
-public boolean isEmpty() { return super.isEmpty(); }
+public boolean isEmpty(@Readonly ArrayListMultimap<K, V> this) { return super.isEmpty(); }
 
 @Override
-public List<V> get(@Nullable K arg0) { return super.get(arg0); }
+public @PolyMutable List<V> get(@PolyMutable ArrayListMultimap<K, V> this, @Nullable K arg0) { return super.get(arg0); }
 
 @Override
-public boolean remove(@Nullable Object arg0, @Nullable Object arg1) { return super.remove(arg0, arg1); }
+public boolean remove(@Mutable ArrayListMultimap<K, V> this, @Nullable @Readonly Object arg0, @Nullable @Readonly Object arg1) { return super.remove(arg0, arg1); }
 
 @Override
-public List<V> removeAll(@Nullable Object arg0) { return super.removeAll(arg0); }
+public @Readonly List<V> removeAll(@Mutable ArrayListMultimap<K, V> this, @Nullable @Readonly Object arg0) { return super.removeAll(arg0); }
 
 @Pure
 @Override
-public int size() { return super.size(); }
+public int size(@Readonly ArrayListMultimap<K, V> this) { return super.size(); }
 }
diff --git a/guava/src/com/google/common/collect/ArrayListMultimapGwtSerializationDependencies.java b/guava/src/com/google/common/collect/ArrayListMultimapGwtSerializationDependencies.java
index 9a8cdfbdbd13..040a5bf494f5 100644
--- a/guava/src/com/google/common/collect/ArrayListMultimapGwtSerializationDependencies.java
+++ b/guava/src/com/google/common/collect/ArrayListMultimapGwtSerializationDependencies.java
@@ -19,6 +19,9 @@
 import com.google.common.annotations.GwtCompatible;
 import java.util.Collection;
 import java.util.Map;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A dummy superclass to support GWT serialization of the element types of an {@link
@@ -29,10 +32,12 @@
  *
  * <p>TODO(cpovirk): Consider applying this subclass approach to our other types.
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
-abstract class ArrayListMultimapGwtSerializationDependencies<K, V>
+@ReceiverDependentMutable
+abstract class ArrayListMultimapGwtSerializationDependencies<K extends @Immutable Object, V>
     extends AbstractListMultimap<K, V> {
-  ArrayListMultimapGwtSerializationDependencies(Map<K, Collection<V>> map) {
+  ArrayListMultimapGwtSerializationDependencies(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map) {
     super(map);
   }
   // TODO(cpovirk): Maybe I should have just one shared superclass for AbstractMultimap itself?
diff --git a/guava/src/com/google/common/collect/ArrayTable.java b/guava/src/com/google/common/collect/ArrayTable.java
index 3c9411776d3d..bc3777c7aee8 100644
--- a/guava/src/com/google/common/collect/ArrayTable.java
+++ b/guava/src/com/google/common/collect/ArrayTable.java
@@ -41,6 +41,10 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -95,7 +99,8 @@
 @Beta
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class ArrayTable<R, C, V> extends AbstractTable<R, C, @Nullable V>
+@ReceiverDependentMutable
+public final class ArrayTable<R extends @Immutable Object, C extends @Immutable Object, V> extends AbstractTable<R, C, @Nullable V>
     implements Serializable {
 
   /**
@@ -107,7 +112,7 @@ public final class ArrayTable<R, C, V> extends AbstractTable<R, C, @Nullable V>
    * @throws IllegalArgumentException if {@code rowKeys} or {@code columnKeys} contains duplicates
    *     or if exactly one of {@code rowKeys} or {@code columnKeys} is empty.
    */
-  public static <R, C, V> ArrayTable<R, C, V> create(
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> ArrayTable<R, C, V> create(
       Iterable<? extends R> rowKeys, Iterable<? extends C> columnKeys) {
     return new ArrayTable<>(rowKeys, columnKeys);
   }
@@ -136,7 +141,7 @@ public static <R, C, V> ArrayTable<R, C, V> create(
    *
    * @throws NullPointerException if {@code table} has a null key
    */
-  public static <R, C, V> ArrayTable<R, C, V> create(Table<R, C, ? extends @Nullable V> table) {
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> ArrayTable<R, C, V> create(Table<R, C, ? extends @Nullable V> table) {
     return (table instanceof ArrayTable)
         ? new ArrayTable<R, C, V>((ArrayTable<R, C, V>) table)
         : new ArrayTable<R, C, V>(table);
@@ -191,7 +196,8 @@ private ArrayTable(ArrayTable<R, C, V> table) {
     }
   }
 
-  private abstract static class ArrayMap<K, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private abstract static class ArrayMap<K extends @Immutable Object, V extends @Nullable @Readonly Object>
       extends IteratorBasedAbstractMap<K, V> {
     private final ImmutableMap<K, Integer> keyIndex;
 
@@ -294,7 +300,7 @@ public V put(K key, @ParametricNullness V value) {
 
     @Override
     @CheckForNull
-    public V remove(@CheckForNull @UnknownSignedness Object key) {
+    public V remove(@CheckForNull @UnknownSignedness @Readonly Object key) {
       throw new UnsupportedOperationException();
     }
 
@@ -769,6 +775,7 @@ public ImmutableSet<R> rowKeySet() {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   private class RowMap extends ArrayMap<R, Map<C, @Nullable V>> {
     private RowMap() {
       super(rowKeyToIndex);
@@ -811,7 +818,7 @@ String getKeyRole() {
   }
 
   @Override
-  Iterator<@Nullable V> valuesIterator() {
+  @ReceiverDependentMutable Iterator<@Nullable V> valuesIterator() {
     return new AbstractIndexedListIterator<@Nullable V>(size()) {
       @Override
       @CheckForNull
diff --git a/guava/src/com/google/common/collect/BaseImmutableMultimap.java b/guava/src/com/google/common/collect/BaseImmutableMultimap.java
index 2e69c2a92e39..bc782885a3dc 100644
--- a/guava/src/com/google/common/collect/BaseImmutableMultimap.java
+++ b/guava/src/com/google/common/collect/BaseImmutableMultimap.java
@@ -16,11 +16,15 @@
 package com.google.common.collect;
 
 import com.google.common.annotations.GwtCompatible;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A dummy superclass of {@link ImmutableMultimap} that can be instanceof'd without ProGuard
  * retaining additional implementation details of {@link ImmutableMultimap}.
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class BaseImmutableMultimap<K, V> extends AbstractMultimap<K, V> {}
+@Immutable
+abstract class BaseImmutableMultimap<K extends @Immutable Object, V> extends AbstractMultimap<K, V> {}
diff --git a/guava/src/com/google/common/collect/BiMap.java b/guava/src/com/google/common/collect/BiMap.java
index 9ec8abc4d8a3..0277ce2df380 100644
--- a/guava/src/com/google/common/collect/BiMap.java
+++ b/guava/src/com/google/common/collect/BiMap.java
@@ -22,7 +22,13 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * A bimap (or "bidirectional map") is a map that preserves the uniqueness of its values as well as
@@ -36,9 +42,11 @@
  * @since 2.0
  */
 @GwtCompatible
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @ElementTypesAreNonnullByDefault
-public interface BiMap<K extends @Nullable Object, V extends @Nullable Object> extends Map<K, V> {
+@CFComment("PICO: BiMap both key and value type are immutable")
+@ReceiverDependentMutable
+public interface BiMap<K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object> extends Map<K, V> {
   // Modification Operations
 
   /**
@@ -51,7 +59,7 @@ public interface BiMap<K extends @Nullable Object, V extends @Nullable Object> e
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  V put(@ParametricNullness K key, @ParametricNullness V value);
+  V put(@Mutable BiMap<K,V> this, @ParametricNullness K key, @ParametricNullness V value);
 
   /**
    * An alternate form of {@code put} that silently removes any existing entry with the value {@code
@@ -73,7 +81,7 @@ public interface BiMap<K extends @Nullable Object, V extends @Nullable Object> e
    */
   @CanIgnoreReturnValue
   @CheckForNull
-  V forcePut(@ParametricNullness K key, @ParametricNullness V value);
+  V forcePut(@Mutable BiMap<K,V> this, @ParametricNullness K key, @ParametricNullness V value);
 
   // Bulk Operations
 
@@ -87,7 +95,7 @@ public interface BiMap<K extends @Nullable Object, V extends @Nullable Object> e
    *     map entries may have been added to the bimap before the exception was thrown.
    */
   @Override
-  void putAll(Map<? extends K, ? extends V> map);
+  void putAll(@Mutable BiMap<K,V> this, @Readonly Map<? extends K, ? extends V> map);
 
   // Views
 
@@ -98,7 +106,7 @@ public interface BiMap<K extends @Nullable Object, V extends @Nullable Object> e
    * java.util.Collection} specified in the {@link Map} interface.
    */
   @Override
-  Set<V> values();
+  Set<V> values(@PolyMutable BiMap<K,V> this);
 
   /**
    * Returns the inverse view of this bimap, which maps each of this bimap's values to its
@@ -110,5 +118,5 @@ public interface BiMap<K extends @Nullable Object, V extends @Nullable Object> e
    *
    * @return the inverse view of this bimap
    */
-  BiMap<V, K> inverse();
+  @PolyMutable BiMap<V, K> inverse(@PolyMutable BiMap<K,V> this);
 }
diff --git a/guava/src/com/google/common/collect/CartesianList.java b/guava/src/com/google/common/collect/CartesianList.java
index e14fb959fae2..87ad8d043895 100644
--- a/guava/src/com/google/common/collect/CartesianList.java
+++ b/guava/src/com/google/common/collect/CartesianList.java
@@ -24,22 +24,27 @@
 import java.util.RandomAccess;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Implementation of {@link Lists#cartesianProduct(List)}.
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class CartesianList<E> extends AbstractList<List<E>> implements RandomAccess {
 
   private final transient ImmutableList<List<E>> axes;
   private final transient int[] axesSizeProduct;
 
-  static <E> List<List<E>> create(List<? extends List<? extends E>> lists) {
-    ImmutableList.Builder<List<E>> axesBuilder = new ImmutableList.Builder<>(lists.size());
+  static <E> @Immutable List<List<E>> create(@Immutable List<? extends List<? extends E>> lists) {
+    ImmutableList.Builder<@Immutable List<E>> axesBuilder = new ImmutableList.Builder<>(lists.size());
     for (List<? extends E> list : lists) {
       List<E> copy = ImmutableList.copyOf(list);
       if (copy.isEmpty()) {
@@ -50,7 +55,8 @@ static <E> List<List<E>> create(List<? extends List<? extends E>> lists) {
     return new CartesianList<>(axesBuilder.build());
   }
 
-  CartesianList(ImmutableList<List<E>> axes) {
+  @SuppressWarnings("pico:assignment.type.incompatible") // cast from @Unique @Mutable to @Immutable
+  CartesianList(ImmutableList<@Immutable List<E>> axes) {
     this.axes = axes;
     int[] axesSizeProduct = new int[axes.size() + 1];
     axesSizeProduct[axes.size()] = 1;
@@ -70,11 +76,11 @@ private int getAxisIndexForProductIndex(int index, int axis) {
   }
 
   @Override
-  public int indexOf(@CheckForNull @UnknownSignedness Object o) {
+  public int indexOf(@CheckForNull @UnknownSignedness @Readonly Object o) {
     if (!(o instanceof List)) {
       return -1;
     }
-    List<?> list = (List<?>) o;
+    List<?> list = (@Readonly List<?>) o;
     if (list.size() != axes.size()) {
       return -1;
     }
@@ -92,11 +98,11 @@ public int indexOf(@CheckForNull @UnknownSignedness Object o) {
   }
 
   @Override
-  public int lastIndexOf(@CheckForNull @UnknownSignedness Object o) {
+  public int lastIndexOf(@CheckForNull @UnknownSignedness @Readonly Object o) {
     if (!(o instanceof List)) {
       return -1;
     }
-    List<?> list = (List<?>) o;
+    List<?> list = (@Readonly List<?>) o;
     if (list.size() != axes.size()) {
       return -1;
     }
@@ -116,7 +122,7 @@ public int lastIndexOf(@CheckForNull @UnknownSignedness Object o) {
   @Override
   public ImmutableList<E> get(int index) {
     checkElementIndex(index, size());
-    return new ImmutableList<E>() {
+    return new @Immutable ImmutableList<E>() {
 
       @Override
       public @NonNegative int size() {
@@ -143,11 +149,11 @@ boolean isPartialView() {
   }
 
   @Override
-  public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+  public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
     if (!(object instanceof List)) {
       return false;
     }
-    List<?> list = (List<?>) object;
+    List<?> list = (@Readonly List<?>) object;
     if (list.size() != axes.size()) {
       return false;
     }
diff --git a/guava/src/com/google/common/collect/ClassToInstanceMap.java b/guava/src/com/google/common/collect/ClassToInstanceMap.java
index 870e3cb7f47f..6381893ad18f 100644
--- a/guava/src/com/google/common/collect/ClassToInstanceMap.java
+++ b/guava/src/com/google/common/collect/ClassToInstanceMap.java
@@ -22,6 +22,7 @@
 import java.util.Map;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -62,6 +63,7 @@
 // we might annotate this as...
 // ClassToInstanceMap<B extends @Nullable Object> extends Map<Class<? extends @Nonnull B>, B>
 // ...and change its methods similarly (<T extends @Nonnull B> or Class<@Nonnull T>).
+@ReceiverDependentMutable
 public interface ClassToInstanceMap<B> extends Map<Class<? extends B>, B> {
   /**
    * Returns the value the specified class is mapped to, or {@code null} if no entry for this class
diff --git a/guava/src/com/google/common/collect/CollectCollectors.java b/guava/src/com/google/common/collect/CollectCollectors.java
index f582660c8ee1..0bea37146c85 100644
--- a/guava/src/com/google/common/collect/CollectCollectors.java
+++ b/guava/src/com/google/common/collect/CollectCollectors.java
@@ -37,20 +37,22 @@
 import java.util.stream.Stream;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /** Collectors utilities for {@code common.collect} internals. */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
 final class CollectCollectors {
 
-  private static final Collector<Object, ?, ImmutableList<Object>> TO_IMMUTABLE_LIST =
+  private static final Collector<Object, ?, ImmutableList<@Readonly Object>> TO_IMMUTABLE_LIST =
       Collector.of(
           ImmutableList::builder,
           ImmutableList.Builder::add,
           ImmutableList.Builder::combine,
           ImmutableList.Builder::build);
 
-  private static final Collector<Object, ?, ImmutableSet<Object>> TO_IMMUTABLE_SET =
+  private static final Collector<Object, ?, ImmutableSet<@Readonly Object>> TO_IMMUTABLE_SET =
       Collector.of(
           ImmutableSet::builder,
           ImmutableSet.Builder::add,
@@ -134,14 +136,14 @@ ImmutableSet<E> toImmutableSet() {
 
   @GwtIncompatible
   @SuppressWarnings({"rawtypes", "unchecked"})
-  static <E extends Comparable<? super E>>
+  static <E extends @Readonly Comparable<? super E>>
       Collector<Range<E>, ?, ImmutableRangeSet<E>> toImmutableRangeSet() {
     return (Collector) TO_IMMUTABLE_RANGE_SET;
   }
 
   // Multisets
 
-  static <T extends @Nullable Object, E> Collector<T, ?, ImmutableMultiset<E>> toImmutableMultiset(
+  static <T extends @Nullable @Readonly Object, E> Collector<T, ?, ImmutableMultiset<E>> toImmutableMultiset(
       Function<? super T, ? extends E> elementFunction, ToIntFunction<? super T> countFunction) {
     checkNotNull(elementFunction);
     checkNotNull(countFunction);
@@ -156,7 +158,7 @@ ImmutableSet<E> toImmutableSet() {
         (Multiset<E> multiset) -> ImmutableMultiset.copyFromEntries(multiset.entrySet()));
   }
 
-  static <T extends @Nullable Object, E extends @Nullable Object, M extends Multiset<E>>
+  static <T extends @Nullable @Readonly Object, E extends @Nullable @Readonly Object, M extends @Readonly Multiset<E>>
       Collector<T, ?, M> toMultiset(
           Function<? super T, E> elementFunction,
           ToIntFunction<? super T> countFunction,
@@ -175,7 +177,7 @@ ImmutableSet<E> toImmutableSet() {
 
   // Maps
 
-  static <T extends @Nullable Object, K, V> Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
+  static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V> Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
       Function<? super T, ? extends K> keyFunction,
       Function<? super T, ? extends V> valueFunction) {
     checkNotNull(keyFunction);
@@ -187,7 +189,7 @@ ImmutableSet<E> toImmutableSet() {
         ImmutableMap.Builder::build);
   }
 
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction,
@@ -200,7 +202,7 @@ ImmutableSet<E> toImmutableSet() {
         ImmutableMap::copyOf);
   }
 
-  static <T extends @Nullable Object, K, V>
+  static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableSortedMap<K, V>> toImmutableSortedMap(
           Comparator<? super K> comparator,
           Function<? super T, ? extends K> keyFunction,
@@ -220,7 +222,7 @@ ImmutableSet<E> toImmutableSet() {
         Collector.Characteristics.UNORDERED);
   }
 
-  static <T extends @Nullable Object, K, V>
+  static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableSortedMap<K, V>> toImmutableSortedMap(
           Comparator<? super K> comparator,
           Function<? super T, ? extends K> keyFunction,
@@ -236,7 +238,7 @@ ImmutableSet<E> toImmutableSet() {
         ImmutableSortedMap::copyOfSorted);
   }
 
-  static <T extends @Nullable Object, K, V> Collector<T, ?, ImmutableBiMap<K, V>> toImmutableBiMap(
+  static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V extends Object> Collector<T, ?, ImmutableBiMap<K, V>> toImmutableBiMap(
       Function<? super T, ? extends K> keyFunction,
       Function<? super T, ? extends V> valueFunction) {
     checkNotNull(keyFunction);
@@ -249,7 +251,7 @@ ImmutableSet<E> toImmutableSet() {
         new Collector.Characteristics[0]);
   }
 
-  static <T extends @Nullable Object, K extends Enum<K>, V>
+  static <T extends @Nullable @Readonly Object, K extends Enum<K>, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableEnumMap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -277,7 +279,7 @@ ImmutableSet<E> toImmutableSet() {
         Collector.Characteristics.UNORDERED);
   }
 
-  static <T extends @Nullable Object, K extends Enum<K>, V>
+  static <T extends @Nullable @Readonly Object, K extends Enum<K>, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableEnumMap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction,
@@ -330,12 +332,12 @@ EnumMapAccumulator<K, V> combine(EnumMapAccumulator<K, V> other) {
     }
 
     ImmutableMap<K, V> toImmutableMap() {
-      return (map == null) ? ImmutableMap.<K, V>of() : ImmutableEnumMap.asImmutable(map);
+      return (map == null) ? ImmutableMap.<K, V>of() : ImmutableEnumMap.<K,@Immutable V>asImmutable(map);
     }
   }
 
   @GwtIncompatible
-  static <T extends @Nullable Object, K extends Comparable<? super K>, V>
+  static <T extends @Nullable @Readonly Object, K extends @Immutable Comparable<? super K>, V>
       Collector<T, ?, ImmutableRangeMap<K, V>> toImmutableRangeMap(
           Function<? super T, Range<K>> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -350,7 +352,7 @@ ImmutableMap<K, V> toImmutableMap() {
 
   // Multimaps
 
-  static <T extends @Nullable Object, K, V>
+  static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V extends @Readonly Object>
       Collector<T, ?, ImmutableListMultimap<K, V>> toImmutableListMultimap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -363,7 +365,7 @@ ImmutableMap<K, V> toImmutableMap() {
         ImmutableListMultimap.Builder::build);
   }
 
-  static <T extends @Nullable Object, K, V>
+  static <T extends @Nullable Object, K extends @Immutable Object, V extends @Readonly Object>
       Collector<T, ?, ImmutableListMultimap<K, V>> flatteningToImmutableListMultimap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends Stream<? extends V>> valuesFunction) {
@@ -377,7 +379,7 @@ ImmutableMap<K, V> toImmutableMap() {
         ImmutableListMultimap::copyOf);
   }
 
-  static <T extends @Nullable Object, K, V>
+  static <T extends @Nullable Object, K extends @Immutable Object, V extends @Readonly Object>
       Collector<T, ?, ImmutableSetMultimap<K, V>> toImmutableSetMultimap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -390,7 +392,7 @@ ImmutableMap<K, V> toImmutableMap() {
         ImmutableSetMultimap.Builder::build);
   }
 
-  static <T extends @Nullable Object, K, V>
+  static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V extends @Readonly Object>
       Collector<T, ?, ImmutableSetMultimap<K, V>> flatteningToImmutableSetMultimap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends Stream<? extends V>> valuesFunction) {
@@ -405,9 +407,9 @@ ImmutableMap<K, V> toImmutableMap() {
   }
 
   static <
-          T extends @Nullable Object,
-          K extends @Nullable Object,
-          V extends @Nullable Object,
+          T extends @Nullable @Readonly Object,
+          K extends @Nullable @Immutable Object,
+          V extends @Nullable @Readonly Object,
           M extends Multimap<K, V>>
       Collector<T, ?, M> toMultimap(
           Function<? super T, ? extends K> keyFunction,
@@ -426,9 +428,9 @@ ImmutableMap<K, V> toImmutableMap() {
   }
 
   static <
-          T extends @Nullable Object,
-          K extends @Nullable Object,
-          V extends @Nullable Object,
+          T extends @Nullable @Readonly Object,
+          K extends @Nullable @Immutable Object,
+          V extends @Nullable @Readonly Object,
           M extends Multimap<K, V>>
       Collector<T, ?, M> flatteningToMultimap(
           Function<? super T, ? extends K> keyFunction,
diff --git a/guava/src/com/google/common/collect/CollectPreconditions.java b/guava/src/com/google/common/collect/CollectPreconditions.java
index 38ebfe94ab8e..ca244693ac2f 100644
--- a/guava/src/com/google/common/collect/CollectPreconditions.java
+++ b/guava/src/com/google/common/collect/CollectPreconditions.java
@@ -22,14 +22,17 @@
 import com.google.errorprone.annotations.CanIgnoreReturnValue;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.index.qual.Positive;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /** Precondition checks useful in collection implementations. */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@AnnotatedFor("pico")
 final class CollectPreconditions {
 
-  static void checkEntryNotNull(@UnknownSignedness Object key, @UnknownSignedness Object value) {
+  static void checkEntryNotNull(@UnknownSignedness @Readonly Object key, @UnknownSignedness @Readonly Object value) {
     if (key == null) {
       throw new NullPointerException("null key in entry: null=" + value);
     } else if (value == null) {
diff --git a/guava/src/com/google/common/collect/CollectSpliterators.java b/guava/src/com/google/common/collect/CollectSpliterators.java
index 7d0e82f203a8..2da5729ad496 100644
--- a/guava/src/com/google/common/collect/CollectSpliterators.java
+++ b/guava/src/com/google/common/collect/CollectSpliterators.java
@@ -35,6 +35,8 @@
 import java.util.stream.IntStream;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /** Spliterator utilities for {@code common.collect} internals. */
 @GwtCompatible
@@ -42,12 +44,12 @@
 final class CollectSpliterators {
   private CollectSpliterators() {}
 
-  static <T extends @Nullable Object> Spliterator<T> indexed(
+  static <T extends @Nullable @Readonly Object> Spliterator<T> indexed(
       int size, int extraCharacteristics, IntFunction<T> function) {
     return indexed(size, extraCharacteristics, function, null);
   }
 
-  static <T extends @Nullable Object> Spliterator<T> indexed(
+  static <T extends @Nullable @Readonly Object> Spliterator<T> indexed(
       int size,
       int extraCharacteristics,
       IntFunction<T> function,
@@ -109,7 +111,7 @@ public Comparator<? super T> getComparator() {
    * Returns a {@code Spliterator} over the elements of {@code fromSpliterator} mapped by {@code
    * function}.
    */
-  static <InElementT extends @Nullable Object, OutElementT extends @Nullable Object>
+  static <InElementT extends @Nullable @Readonly Object, OutElementT extends @Nullable @Readonly Object>
       Spliterator<OutElementT> map(
           Spliterator<InElementT> fromSpliterator,
           Function<? super InElementT, ? extends OutElementT> function) {
@@ -149,7 +151,7 @@ public int characteristics() {
   }
 
   /** Returns a {@code Spliterator} filtered by the specified predicate. */
-  static <T extends @Nullable Object> Spliterator<T> filter(
+  static <T extends @Nullable @Readonly Object> Spliterator<T> filter(
       Spliterator<T> fromSpliterator, Predicate<? super T> predicate) {
     checkNotNull(fromSpliterator);
     checkNotNull(predicate);
@@ -212,7 +214,7 @@ public int characteristics() {
    * Returns a {@code Spliterator} that iterates over the elements of the spliterators generated by
    * applying {@code function} to the elements of {@code fromSpliterator}.
    */
-  static <InElementT extends @Nullable Object, OutElementT extends @Nullable Object>
+  static <InElementT extends @Nullable @Readonly Object, OutElementT extends @Nullable @Readonly Object>
       Spliterator<OutElementT> flatMap(
           Spliterator<InElementT> fromSpliterator,
           Function<? super InElementT, Spliterator<OutElementT>> function,
@@ -304,13 +306,13 @@ Spliterator<OutElementT> flatMap(
    * @param <OutSpliteratorT> the type of the output spliterators
    */
   abstract static class FlatMapSpliterator<
-          InElementT extends @Nullable Object,
-          OutElementT extends @Nullable Object,
+          InElementT extends @Nullable @Readonly Object,
+          OutElementT extends @Nullable @Readonly Object,
           OutSpliteratorT extends Spliterator<OutElementT>>
       implements Spliterator<OutElementT> {
     /** Factory for constructing {@link FlatMapSpliterator} instances. */
     @FunctionalInterface
-    interface Factory<InElementT extends @Nullable Object, OutSpliteratorT extends Spliterator<?>> {
+    interface Factory<InElementT extends @Nullable @Readonly Object, OutSpliteratorT extends Spliterator<?>> {
       OutSpliteratorT newFlatMapSpliterator(
           @CheckForNull OutSpliteratorT prefix,
           Spliterator<InElementT> fromSplit,
@@ -319,12 +321,12 @@ OutSpliteratorT newFlatMapSpliterator(
           long estSplitSize);
     }
 
-    @Weak @CheckForNull OutSpliteratorT prefix;
+    @Weak @CheckForNull @Assignable OutSpliteratorT prefix;
     final Spliterator<InElementT> from;
     final Function<? super InElementT, OutSpliteratorT> function;
     final Factory<InElementT, OutSpliteratorT> factory;
-    int characteristics;
-    long estimatedSize;
+    @Assignable int characteristics;
+    @Assignable long estimatedSize;
 
     FlatMapSpliterator(
         @CheckForNull OutSpliteratorT prefix,
@@ -433,7 +435,7 @@ public final int characteristics() {
    * @param <OutElementT> the element type of the output spliterators
    */
   static final class FlatMapSpliteratorOfObject<
-          InElementT extends @Nullable Object, OutElementT extends @Nullable Object>
+          InElementT extends @Nullable @Readonly Object, OutElementT extends @Nullable @Readonly Object>
       extends FlatMapSpliterator<InElementT, OutElementT, Spliterator<OutElementT>> {
     FlatMapSpliteratorOfObject(
         @CheckForNull Spliterator<OutElementT> prefix,
@@ -455,8 +457,8 @@ static final class FlatMapSpliteratorOfObject<
    * @param <OutSpliteratorT> the primitive spliterator type associated with {@code OutElementT}
    */
   abstract static class FlatMapSpliteratorOfPrimitive<
-          InElementT extends @Nullable Object,
-          OutElementT extends @Nullable Object,
+          InElementT extends @Nullable @Readonly Object,
+          OutElementT extends @Nullable @Readonly Object,
           OutConsumerT,
           OutSpliteratorT extends
               Spliterator.OfPrimitive<OutElementT, OutConsumerT, OutSpliteratorT>>
@@ -508,7 +510,7 @@ public final void forEachRemaining(OutConsumerT action) {
   }
 
   /** Implementation of {@link #flatMapToInt}. */
-  static final class FlatMapSpliteratorOfInt<InElementT extends @Nullable Object>
+  static final class FlatMapSpliteratorOfInt<InElementT extends @Nullable @Readonly Object>
       extends FlatMapSpliteratorOfPrimitive<InElementT, Integer, IntConsumer, Spliterator.OfInt>
       implements Spliterator.OfInt {
     FlatMapSpliteratorOfInt(
diff --git a/guava/src/com/google/common/collect/Collections2.java b/guava/src/com/google/common/collect/Collections2.java
index 868b9f69ea5e..b485fee2d7f2 100644
--- a/guava/src/com/google/common/collect/Collections2.java
+++ b/guava/src/com/google/common/collect/Collections2.java
@@ -42,6 +42,11 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.Signed;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
@@ -61,7 +66,7 @@
  * @author Jared Levy
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
 public final class Collections2 {
@@ -94,22 +99,22 @@ private Collections2() {}
    */
   // TODO(kevinb): how can we omit that Iterables link when building gwt
   // javadoc?
-  public static <E extends @Nullable Object> Collection<E> filter(
-      Collection<E> unfiltered, Predicate<? super E> predicate) {
+  public static <E extends @Nullable @Readonly Object> @PolyMutable Collection<E> filter(
+      @PolyMutable Collection<E> unfiltered, Predicate<? super E> predicate) {
     if (unfiltered instanceof FilteredCollection) {
       // Support clear(), removeAll(), and retainAll() when filtering a filtered
       // collection.
       return ((FilteredCollection<E>) unfiltered).createCombined(predicate);
     }
 
-    return new FilteredCollection<E>(checkNotNull(unfiltered), checkNotNull(predicate));
+    return new @PolyMutable FilteredCollection<E>(checkNotNull(unfiltered), checkNotNull(predicate));
   }
 
   /**
    * Delegates to {@link Collection#contains}. Returns {@code false} if the {@code contains} method
    * throws a {@code ClassCastException} or {@code NullPointerException}.
    */
-  static boolean safeContains(Collection<?> collection, @CheckForNull @UnknownSignedness Object object) {
+  static boolean safeContains(@Readonly Collection<?> collection, @CheckForNull @UnknownSignedness @Readonly Object object) {
     checkNotNull(collection);
     try {
       return collection.contains(object);
@@ -122,7 +127,7 @@ static boolean safeContains(Collection<?> collection, @CheckForNull @UnknownSign
    * Delegates to {@link Collection#remove}. Returns {@code false} if the {@code remove} method
    * throws a {@code ClassCastException} or {@code NullPointerException}.
    */
-  static boolean safeRemove(Collection<?> collection, @CheckForNull Object object) {
+  static boolean safeRemove(Collection<?> collection, @CheckForNull @Readonly Object object) {
     checkNotNull(collection);
     try {
       return collection.remove(object);
@@ -131,11 +136,12 @@ static boolean safeRemove(Collection<?> collection, @CheckForNull Object object)
     }
   }
 
-  static class FilteredCollection<E extends @Nullable Object> extends AbstractCollection<E> {
+  @ReceiverDependentMutable
+  static class FilteredCollection<E extends @Nullable @Readonly Object> extends AbstractCollection<E> {
     final Collection<E> unfiltered;
-    final Predicate<? super E> predicate;
+    final @Mutable Predicate<? super E> predicate;
 
-    FilteredCollection(Collection<E> unfiltered, Predicate<? super E> predicate) {
+    FilteredCollection(@ReceiverDependentMutable Collection<E> unfiltered, Predicate<? super E> predicate) {
       this.unfiltered = unfiltered;
       this.predicate = predicate;
     }
@@ -146,13 +152,13 @@ FilteredCollection<E> createCombined(Predicate<? super E> newPredicate) {
     }
 
     @Override
-    public boolean add(@ParametricNullness E element) {
+    public boolean add(@Mutable FilteredCollection<E> this, @ParametricNullness E element) {
       checkArgument(predicate.apply(element));
       return unfiltered.add(element);
     }
 
     @Override
-    public boolean addAll(Collection<? extends E> collection) {
+    public boolean addAll(@Mutable FilteredCollection<E> this, Collection<? extends E> collection) {
       for (E element : collection) {
         checkArgument(predicate.apply(element));
       }
@@ -160,13 +166,13 @@ public boolean addAll(Collection<? extends E> collection) {
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable FilteredCollection<E> this) {
       Iterables.removeIf(unfiltered, predicate);
     }
 
     @Pure
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object element) {
+    public boolean contains(@Readonly FilteredCollection<E> this, @CheckForNull @UnknownSignedness @Readonly Object element) {
       if (safeContains(unfiltered, element)) {
         @SuppressWarnings("unchecked") // element is in unfiltered, so it must be an E
         E e = (E) element;
@@ -177,23 +183,23 @@ public boolean contains(@CheckForNull @UnknownSignedness Object element) {
 
     @Pure
     @Override
-    public boolean containsAll(Collection<?> collection) {
+    public boolean containsAll(@Readonly FilteredCollection<E> this, @Readonly Collection<?> collection) {
       return containsAllImpl(this, collection);
     }
 
     @Pure
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly FilteredCollection<E> this) {
       return !Iterables.any(unfiltered, predicate);
     }
 
     @Override
-    public Iterator<E> iterator() {
+    public @Readonly Iterator<E> iterator(@Readonly FilteredCollection<E> this) {
       return Iterators.filter(unfiltered.iterator(), predicate);
     }
 
     @Override
-    public Spliterator<E> spliterator() {
+    public Spliterator<E> spliterator(@Readonly FilteredCollection<E> this) {
       return CollectSpliterators.filter(unfiltered.spliterator(), predicate);
     }
 
@@ -209,29 +215,29 @@ public void forEach(Consumer<? super E> action) {
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object element) {
+    public boolean remove(@Mutable FilteredCollection<E> this, @CheckForNull @UnknownSignedness @Readonly Object element) {
       return contains(element) && unfiltered.remove(element);
     }
 
     @Override
-    public boolean removeAll(final Collection<?> collection) {
+    public boolean removeAll(@Mutable FilteredCollection<E> this, final @Readonly Collection<?> collection) {
       return removeIf(collection::contains);
     }
 
     @Override
-    public boolean retainAll(final Collection<?> collection) {
+    public boolean retainAll(@Mutable FilteredCollection<E> this, final @Readonly Collection<?> collection) {
       return removeIf(element -> !collection.contains(element));
     }
 
     @Override
-    public boolean removeIf(java.util.function.Predicate<? super E> filter) {
+    public boolean removeIf(@Mutable FilteredCollection<E> this, java.util.function.Predicate<? super E> filter) {
       checkNotNull(filter);
       return unfiltered.removeIf(element -> predicate.apply(element) && filter.test(element));
     }
 
     @Pure
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly FilteredCollection<E> this) {
       int size = 0;
       for (E e : unfiltered) {
         if (predicate.apply(e)) {
@@ -242,20 +248,20 @@ public boolean removeIf(java.util.function.Predicate<? super E> filter) {
     }
 
     @Override
-    public @PolyNull @PolySigned Object[] toArray(FilteredCollection<@PolyNull @PolySigned E> this) {
+    public @PolyNull @PolySigned @PolyMutable Object[] toArray(FilteredCollection<@PolyNull @PolySigned @PolyMutable E> this) {
       // creating an ArrayList so filtering happens once
       return Lists.newArrayList(iterator()).toArray();
     }
 
     @Override
     @SuppressWarnings("nullness:return")
-    public <T extends @Nullable @UnknownSignedness Object> T[] toArray(@PolyNull T[] array) {
+    public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(@PolyNull T[] array) {
       return Lists.newArrayList(iterator()).toArray(array);
     }
 
   @Pure
   @Override
-  public String toString() { return super.toString(); }
+  public String toString(@Readonly FilteredCollection<E> this) { return super.toString(); }
   }
 
   /**
@@ -277,40 +283,41 @@ public boolean removeIf(java.util.function.Predicate<? super E> filter) {
    *
    * <p><b>{@code Stream} equivalent:</b> {@link java.util.stream.Stream#map Stream.map}.
    */
-  public static <F extends @Nullable Object, T extends @Nullable Object> Collection<T> transform(
+  public static <F extends @Nullable @Readonly Object, T extends @Nullable @Readonly Object> Collection<T> transform(
       Collection<F> fromCollection, Function<? super F, T> function) {
     return new TransformedCollection<>(fromCollection, function);
   }
 
-  static class TransformedCollection<F extends @Nullable Object, T extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class TransformedCollection<F extends @Nullable @Readonly Object, T extends @Nullable @Readonly Object>
       extends AbstractCollection<T> {
     final Collection<F> fromCollection;
-    final Function<? super F, ? extends T> function;
+    final @Mutable Function<? super F, ? extends T> function;
 
-    TransformedCollection(Collection<F> fromCollection, Function<? super F, ? extends T> function) {
+    TransformedCollection(@ReceiverDependentMutable Collection<F> fromCollection, Function<? super F, ? extends T> function) {
       this.fromCollection = checkNotNull(fromCollection);
       this.function = checkNotNull(function);
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable TransformedCollection<F, T> this) {
       fromCollection.clear();
     }
 
     @Pure
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly TransformedCollection<F, T> this) {
       return fromCollection.isEmpty();
     }
 
     @Override
-    public Iterator<T> iterator() {
+    public Iterator<T> iterator(@Readonly TransformedCollection<F, T> this) {
       return Iterators.transform(fromCollection.iterator(), function);
     }
 
     @Pure
     @Override
-    public Spliterator<T> spliterator() {
+    public Spliterator<T> spliterator(@Readonly TransformedCollection<F, T> this) {
       return CollectSpliterators.map(fromCollection.spliterator(), function);
     }
 
@@ -321,13 +328,13 @@ public void forEach(Consumer<? super T> action) {
     }
 
     @Override
-    public boolean removeIf(java.util.function.Predicate<? super T> filter) {
+    public boolean removeIf(@Mutable TransformedCollection<F, T> this, java.util.function.Predicate<? super T> filter) {
       checkNotNull(filter);
       return fromCollection.removeIf(element -> filter.test(function.apply(element)));
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly TransformedCollection<F, T> this) {
       return fromCollection.size();
     }
   }
@@ -343,7 +350,7 @@ public boolean removeIf(java.util.function.Predicate<? super T> filter) {
    * @param self a collection which might contain all elements in {@code c}
    * @param c a collection whose elements might be contained by {@code self}
    */
-  static boolean containsAllImpl(Collection<?> self, Collection<?> c) {
+  static boolean containsAllImpl(@Readonly Collection<?> self, @Readonly Collection<?> c) {
     for (Object o : c) {
       if (!self.contains(o)) {
         return false;
@@ -353,7 +360,7 @@ static boolean containsAllImpl(Collection<?> self, Collection<?> c) {
   }
 
   /** An implementation of {@link Collection#toString()}. */
-  static String toStringImpl(final Collection<? extends @Signed Object> collection) {
+  static String toStringImpl(final @Readonly Collection<? extends @Signed @Readonly Object> collection) {
     StringBuilder sb = newStringBuilderForCollection(collection.size()).append('[');
     boolean first = true;
     for (Object o : collection) {
@@ -456,9 +463,10 @@ public static <E> Collection<List<E>> orderedPermutations(
     return new OrderedPermutationCollection<E>(elements, comparator);
   }
 
+  @Immutable
   private static final class OrderedPermutationCollection<E> extends AbstractCollection<List<E>> {
     final ImmutableList<E> inputList;
-    final Comparator<? super E> comparator;
+    final @Mutable Comparator<? super E> comparator;
     final int size;
 
     OrderedPermutationCollection(Iterable<E> input, Comparator<? super E> comparator) {
@@ -513,7 +521,7 @@ public Iterator<List<E>> iterator() {
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object obj) {
+    public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object obj) {
       if (obj instanceof List) {
         List<?> list = (List<?>) obj;
         return isPermutation(inputList, list);
@@ -527,11 +535,12 @@ public String toString() {
     }
   }
 
+  @ReceiverDependentMutable
   private static final class OrderedPermutationIterator<E> extends AbstractIterator<List<E>> {
     @CheckForNull List<E> nextPermutation;
-    final Comparator<? super E> comparator;
+    final @Mutable Comparator<? super E> comparator;
 
-    OrderedPermutationIterator(List<E> list, Comparator<? super E> comparator) {
+    OrderedPermutationIterator(@ReceiverDependentMutable List<E> list, Comparator<? super E> comparator) {
       this.nextPermutation = Lists.newArrayList(list);
       this.comparator = comparator;
     }
@@ -613,10 +622,11 @@ int findNextL(int j) {
    * @since 12.0
    */
   @Beta
-  public static <E> Collection<List<E>> permutations(Collection<E> elements) {
+  public static <E> Collection<List<E>> permutations(@Readonly Collection<E> elements) {
     return new PermutationCollection<E>(ImmutableList.copyOf(elements));
   }
 
+  @Immutable
   private static final class PermutationCollection<E> extends AbstractCollection<List<E>> {
     final ImmutableList<E> inputList;
 
@@ -640,7 +650,7 @@ public Iterator<List<E>> iterator() {
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object obj) {
+    public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object obj) {
       if (obj instanceof List) {
         List<?> list = (List<?>) obj;
         return isPermutation(inputList, list);
@@ -654,13 +664,14 @@ public String toString() {
     }
   }
 
+  @ReceiverDependentMutable
   private static class PermutationIterator<E> extends AbstractIterator<List<E>> {
     final List<E> list;
     final int[] c;
     final int[] o;
     int j;
 
-    PermutationIterator(List<E> list) {
+    PermutationIterator(@ReceiverDependentMutable List<E> list) {
       this.list = new ArrayList<E>(list);
       int n = list.size();
       c = new int[n];
@@ -719,7 +730,7 @@ void switchDirection() {
   }
 
   /** Returns {@code true} if the second list is a permutation of the first. */
-  private static boolean isPermutation(List<?> first, List<?> second) {
+  private static boolean isPermutation(@Readonly List<?> first, @Readonly List<?> second) {
     if (first.size() != second.size()) {
       return false;
     }
diff --git a/guava/src/com/google/common/collect/CompactHashMap.java b/guava/src/com/google/common/collect/CompactHashMap.java
index 9c15a2aecd33..e800ac73bb83 100644
--- a/guava/src/com/google/common/collect/CompactHashMap.java
+++ b/guava/src/com/google/common/collect/CompactHashMap.java
@@ -55,6 +55,11 @@
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
@@ -86,7 +91,8 @@
  */
 @GwtIncompatible // not worth using in GWT for now
 @ElementTypesAreNonnullByDefault
-class CompactHashMap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+class CompactHashMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractMap<K, V> implements Serializable {
   /*
    * TODO: Make this a drop-in replacement for j.u. versions, actually drop them in, and test the
@@ -97,8 +103,8 @@ class CompactHashMap<K extends @Nullable Object, V extends @Nullable Object>
    */
 
   /** Creates an empty {@code CompactHashMap} instance. */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      CompactHashMap<K, V> create() {
+  public static <K extends @Nullable Object, V extends @Nullable @Readonly Object>
+  CompactHashMap<K, V> create() {
     return new CompactHashMap<>();
   }
 
@@ -111,8 +117,8 @@ CompactHashMap<K, V> create() {
    *     elements without resizing
    * @throws IllegalArgumentException if {@code expectedSize} is negative
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      CompactHashMap<K, V> createWithExpectedSize(int expectedSize) {
+  public static <K extends @Nullable Object, V extends @Nullable @Readonly Object>
+  CompactHashMap<K, V> createWithExpectedSize(int expectedSize) {
     return new CompactHashMap<>(expectedSize);
   }
 
@@ -234,10 +240,10 @@ CompactHashMap<K, V> createWithExpectedSize(int expectedSize) {
    * its bottom {@value CompactHashing#HASH_TABLE_BITS_MAX_BITS} bits, with a modification count in
    * the remaining bits that is used to detect concurrent modification during iteration.
    */
-  private transient int metadata;
+  private transient @Assignable int metadata;
 
   /** The number of elements contained in the set. */
-  private transient int size;
+  private transient @Assignable int size;
 
   /** Constructs a new empty instance of {@code CompactHashMap}. */
   CompactHashMap() {
@@ -340,7 +346,7 @@ void accessEntry(int index) {
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V put(@ParametricNullness K key, @ParametricNullness V value) {
+  public V put(@Mutable CompactHashMap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
     if (needsAllocArrays()) {
       allocArrays();
     }
@@ -532,7 +538,7 @@ public V get(@CheckForNull @UnknownSignedness Object key) {
   @SuppressWarnings("unchecked") // known to be a V
   @Override
   @CheckForNull
-  public V remove(@CheckForNull @UnknownSignedness Object key) {
+  public V remove(@Mutable CompactHashMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     Map<K, V> delegate = delegateOrNull();
     if (delegate != null) {
       return delegate.remove(key);
@@ -571,7 +577,7 @@ public V remove(@CheckForNull @UnknownSignedness Object key) {
   /**
    * Moves the last entry in the entry array into {@code dstIndex}, and nulls out its old position.
    */
-  void moveLastEntry(int dstIndex, int mask) {
+  void moveLastEntry(@Mutable CompactHashMap<K, V> this, int dstIndex, int mask) {
     Object table = requireTable();
     int[] entries = requireEntries();
     @Nullable Object[] keys = requireKeys();
@@ -997,7 +1003,7 @@ Collection<V> createValues() {
   }
 
   @WeakOuter
-  class ValuesView extends Maps.Values<K, V> {
+  @ReceiverDependentMutable class ValuesView extends Maps.Values<K, V> {
     ValuesView() {
       super(CompactHashMap.this);
     }
@@ -1044,7 +1050,7 @@ public Spliterator<V> spliterator() {
 
     @Override
     @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
-    public <T extends @Nullable @UnknownSignedness Object> T[] toArray(@PolyNull T[] a) {
+    public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(@PolyNull T[] a) {
       if (needsAllocArrays()) {
         if (a.length > 0) {
           @Nullable Object[] unsoundlyCovariantArray = a;
@@ -1167,11 +1173,11 @@ private int[] requireEntries() {
     return requireNonNull(entries);
   }
 
-  private @Nullable Object[] requireKeys() {
+  private @Nullable Object @ReceiverDependentMutable [] requireKeys() {
     return requireNonNull(keys);
   }
 
-  private @Nullable Object[] requireValues() {
+  private @Nullable Object @ReceiverDependentMutable [] requireValues() {
     return requireNonNull(values);
   }
 
@@ -1197,11 +1203,11 @@ private int entry(int i) {
     return requireEntries()[i];
   }
 
-  private void setKey(int i, K key) {
+  private void setKey(@Mutable CompactHashMap<K, V> this, int i, K key) {
     requireKeys()[i] = key;
   }
 
-  private void setValue(int i, V value) {
+  private void setValue(@Mutable CompactHashMap<K, V> this, int i, V value) {
     requireValues()[i] = value;
   }
 
diff --git a/guava/src/com/google/common/collect/CompactHashSet.java b/guava/src/com/google/common/collect/CompactHashSet.java
index 7b10c5a4e8d6..69a80c681b7a 100644
--- a/guava/src/com/google/common/collect/CompactHashSet.java
+++ b/guava/src/com/google/common/collect/CompactHashSet.java
@@ -49,6 +49,7 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
@@ -81,11 +82,12 @@
  */
 @GwtIncompatible // not worth using in GWT for now
 @ElementTypesAreNonnullByDefault
-class CompactHashSet<E extends @Nullable Object> extends AbstractSet<E> implements Serializable {
+@ReceiverDependentMutable
+class CompactHashSet<E extends @Nullable @Readonly Object> extends AbstractSet<E> implements Serializable {
   // TODO(user): cache all field accesses in local vars
 
   /** Creates an empty {@code CompactHashSet} instance. */
-  public static <E extends @Nullable Object> CompactHashSet<E> create() {
+  public static <E extends @Nullable @Readonly Object> CompactHashSet<E> create() {
     return new CompactHashSet<>();
   }
 
@@ -96,7 +98,7 @@ class CompactHashSet<E extends @Nullable Object> extends AbstractSet<E> implemen
    * @param collection the elements that the set should contain
    * @return a new {@code CompactHashSet} containing those elements (minus duplicates)
    */
-  public static <E extends @Nullable Object> CompactHashSet<E> create(
+  public static <E extends @Nullable @Readonly Object> CompactHashSet<E> create(
       Collection<? extends E> collection) {
     CompactHashSet<E> set = createWithExpectedSize(collection.size());
     set.addAll(collection);
@@ -454,7 +456,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object object) {
 
   @CanIgnoreReturnValue
   @Override
-  public boolean remove(@CheckForNull @UnknownSignedness Object object) {
+  public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object object) {
     if (needsAllocArrays()) {
       return false;
     }
diff --git a/guava/src/com/google/common/collect/CompactLinkedHashMap.java b/guava/src/com/google/common/collect/CompactLinkedHashMap.java
index cd7edf5b33d6..ac3c90967e0e 100644
--- a/guava/src/com/google/common/collect/CompactLinkedHashMap.java
+++ b/guava/src/com/google/common/collect/CompactLinkedHashMap.java
@@ -32,6 +32,8 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.framework.qual.CFComment;
@@ -58,12 +60,13 @@
  */
 @GwtIncompatible // not worth using in GWT for now
 @ElementTypesAreNonnullByDefault
-class CompactLinkedHashMap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+class CompactLinkedHashMap<K extends @Nullable @Immutable Object, V extends @Nullable Object>
     extends CompactHashMap<K, V> {
   // TODO(lowasser): implement removeEldestEntry so this can be used as a drop-in replacement
 
   /** Creates an empty {@code CompactLinkedHashMap} instance. */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable Object>
       CompactLinkedHashMap<K, V> create() {
     return new CompactLinkedHashMap<>();
   }
@@ -77,7 +80,7 @@ CompactLinkedHashMap<K, V> create() {
    *     expectedSize} elements without resizing
    * @throws IllegalArgumentException if {@code expectedSize} is negative
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable Object>
       CompactLinkedHashMap<K, V> createWithExpectedSize(int expectedSize) {
     return new CompactLinkedHashMap<>(expectedSize);
   }
diff --git a/guava/src/com/google/common/collect/CompactLinkedHashSet.java b/guava/src/com/google/common/collect/CompactLinkedHashSet.java
index d3d7b7cb5174..00692aadb440 100644
--- a/guava/src/com/google/common/collect/CompactLinkedHashSet.java
+++ b/guava/src/com/google/common/collect/CompactLinkedHashSet.java
@@ -29,6 +29,7 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
@@ -55,6 +56,7 @@
  */
 @GwtIncompatible // not worth using in GWT for now
 @ElementTypesAreNonnullByDefault
+@ReceiverDependentMutable
 class CompactLinkedHashSet<E extends @Nullable Object> extends CompactHashSet<E> {
 
   /** Creates an empty {@code CompactLinkedHashSet} instance. */
diff --git a/guava/src/com/google/common/collect/ComparatorOrdering.java b/guava/src/com/google/common/collect/ComparatorOrdering.java
index d0df4a70bca9..cb43020582b2 100644
--- a/guava/src/com/google/common/collect/ComparatorOrdering.java
+++ b/guava/src/com/google/common/collect/ComparatorOrdering.java
@@ -23,15 +23,16 @@
 import java.util.Comparator;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /** An ordering for a pre-existing comparator. */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-final class ComparatorOrdering<T extends @Nullable Object> extends Ordering<T>
+final class ComparatorOrdering<T extends @Readonly @Nullable Object> extends Ordering<T>
     implements Serializable {
   final Comparator<T> comparator;
 
@@ -47,7 +48,7 @@ public int compare(@ParametricNullness T a, @ParametricNullness T b) {
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@CheckForNull @Readonly Object object) {
     if (object == this) {
       return true;
     }
diff --git a/guava/src/com/google/common/collect/CompoundOrdering.java b/guava/src/com/google/common/collect/CompoundOrdering.java
index 63690d37219c..5ff7a17917ff 100644
--- a/guava/src/com/google/common/collect/CompoundOrdering.java
+++ b/guava/src/com/google/common/collect/CompoundOrdering.java
@@ -22,15 +22,16 @@
 import java.util.Comparator;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /** An ordering that tries several comparators in order. */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-final class CompoundOrdering<T extends @Nullable Object> extends Ordering<T>
+final class CompoundOrdering<T extends @Nullable @Readonly Object> extends Ordering<T>
     implements Serializable {
   final Comparator<? super T>[] comparators;
 
@@ -56,7 +57,7 @@ public int compare(@ParametricNullness T left, @ParametricNullness T right) {
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@CheckForNull @Readonly Object object) {
     if (object == this) {
       return true;
     }
diff --git a/guava/src/com/google/common/collect/ConcurrentHashMultiset.java b/guava/src/com/google/common/collect/ConcurrentHashMultiset.java
index 2a9a016bdef2..a2065c5fee01 100644
--- a/guava/src/com/google/common/collect/ConcurrentHashMultiset.java
+++ b/guava/src/com/google/common/collect/ConcurrentHashMultiset.java
@@ -45,6 +45,11 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
@@ -66,7 +71,8 @@
 @AnnotatedFor({"nullness"})
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-public final class ConcurrentHashMultiset<E> extends AbstractMultiset<E> implements Serializable {
+@ReceiverDependentMutable
+public final class ConcurrentHashMultiset<E extends @Immutable Object> extends AbstractMultiset<E> implements Serializable {
 
   /*
    * The ConcurrentHashMultiset's atomic operations are implemented primarily in terms of
@@ -92,7 +98,7 @@ private static class FieldSettersHolder {
    * Creates a new, empty {@code ConcurrentHashMultiset} using the default initial capacity, load
    * factor, and concurrency settings.
    */
-  public static <E> ConcurrentHashMultiset<E> create() {
+  public static <E extends @Immutable Object> ConcurrentHashMultiset<E> create() {
     // TODO(schmoe): provide a way to use this class with other (possibly arbitrary)
     // ConcurrentMap implementors. One possibility is to extract most of this class into
     // an AbstractConcurrentMapMultiset.
@@ -107,7 +113,7 @@ public static <E> ConcurrentHashMultiset<E> create() {
    *
    * @param elements the elements that the multiset should contain
    */
-  public static <E> ConcurrentHashMultiset<E> create(Iterable<? extends E> elements) {
+  public static <E extends @Immutable Object> ConcurrentHashMultiset<E> create(Iterable<? extends E> elements) {
     ConcurrentHashMultiset<E> multiset = ConcurrentHashMultiset.create();
     Iterables.addAll(multiset, elements);
     return multiset;
@@ -128,12 +134,12 @@ public static <E> ConcurrentHashMultiset<E> create(Iterable<? extends E> element
    * @since 20.0
    */
   @Beta
-  public static <E> ConcurrentHashMultiset<E> create(ConcurrentMap<E, AtomicInteger> countMap) {
+  public static <E extends @Immutable Object> ConcurrentHashMultiset<E> create(ConcurrentMap<E, AtomicInteger> countMap) {
     return new ConcurrentHashMultiset<>(countMap);
   }
 
   @VisibleForTesting
-  ConcurrentHashMultiset(ConcurrentMap<E, AtomicInteger> countMap) {
+  ConcurrentHashMultiset(@ReceiverDependentMutable ConcurrentMap<E, AtomicInteger> countMap) {
     checkArgument(countMap.isEmpty(), "the backing map (%s) must be empty", countMap);
     this.countMap = countMap;
   }
@@ -147,7 +153,7 @@ public static <E> ConcurrentHashMultiset<E> create(ConcurrentMap<E, AtomicIntege
    * @return the nonnegative number of occurrences of the element
    */
   @Override
-  public @NonNegative int count(@CheckForNull @UnknownSignedness Object element) {
+  public @NonNegative int count(@Readonly ConcurrentHashMultiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object element) {
     AtomicInteger existingCounter = Maps.safeGet(countMap, element);
     return (existingCounter == null) ? 0 : existingCounter.get();
   }
@@ -160,7 +166,7 @@ public static <E> ConcurrentHashMultiset<E> create(ConcurrentMap<E, AtomicIntege
    */
   @Pure
   @Override
-  public @NonNegative int size() {
+  public @NonNegative int size(@Readonly ConcurrentHashMultiset<E> this) {
     long sum = 0L;
     for (AtomicInteger value : countMap.values()) {
       sum += value.get();
@@ -174,13 +180,13 @@ public static <E> ConcurrentHashMultiset<E> create(ConcurrentMap<E, AtomicIntege
    */
 
   @Override
-  public @PolyNull @PolySigned Object[] toArray(ConcurrentHashMultiset<@PolyNull @PolySigned E> this) {
+  public @PolyNull @PolySigned @PolyMutable Object @ReceiverDependentMutable [] toArray(@ReceiverDependentMutable ConcurrentHashMultiset<@PolyNull @PolySigned @PolyMutable E> this) {
     return snapshot().toArray();
   }
 
   @Override
   @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
-  public <T extends @Nullable @UnknownSignedness Object> T[] toArray(T[] array) {
+  public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(T[] array) {
     return snapshot().toArray(array);
   }
 
@@ -212,7 +218,7 @@ private List<E> snapshot() {
    */
   @CanIgnoreReturnValue
   @Override
-  public int add(E element, int occurrences) {
+  public int add(@Mutable ConcurrentHashMultiset<E> this, E element, int occurrences) {
     checkNotNull(element);
     if (occurrences == 0) {
       return count(element);
@@ -279,7 +285,7 @@ public int add(E element, int occurrences) {
    */
   @CanIgnoreReturnValue
   @Override
-  public int remove(@CheckForNull Object element, int occurrences) {
+  public int remove(@Mutable ConcurrentHashMultiset<E> this, @CheckForNull @Readonly Object element, int occurrences) {
     if (occurrences == 0) {
       return count(element);
     }
@@ -320,7 +326,7 @@ public int remove(@CheckForNull Object element, int occurrences) {
    * @throws IllegalArgumentException if {@code occurrences} is negative
    */
   @CanIgnoreReturnValue
-  public boolean removeExactly(@CheckForNull Object element, int occurrences) {
+  public boolean removeExactly(@Mutable ConcurrentHashMultiset<E> this, @CheckForNull @Readonly Object element, int occurrences) {
     if (occurrences == 0) {
       return true;
     }
@@ -356,7 +362,7 @@ public boolean removeExactly(@CheckForNull Object element, int occurrences) {
    */
   @CanIgnoreReturnValue
   @Override
-  public int setCount(E element, int count) {
+  public int setCount(@Mutable ConcurrentHashMultiset<E> this, E element, int count) {
     checkNotNull(element);
     checkNonnegative(count, "count");
     while (true) {
@@ -412,7 +418,7 @@ public int setCount(E element, int count) {
    */
   @CanIgnoreReturnValue
   @Override
-  public boolean setCount(E element, int expectedOldCount, int newCount) {
+  public boolean setCount(@Mutable ConcurrentHashMultiset<E> this, @Immutable E element, int expectedOldCount, int newCount) {
     checkNotNull(element);
     checkNonnegative(expectedOldCount, "oldCount");
     checkNonnegative(newCount, "newCount");
@@ -501,13 +507,13 @@ public Set<Multiset.Entry<E>> createEntrySet() {
   }
 
   @Override
-  int distinctElements() {
+  int distinctElements(@Readonly ConcurrentHashMultiset<E> this) {
     return countMap.size();
   }
 
   @Pure
   @Override
-  public boolean isEmpty() {
+  public boolean isEmpty(@Readonly ConcurrentHashMultiset<E> this) {
     return countMap.isEmpty();
   }
 
@@ -560,16 +566,17 @@ public void remove() {
   }
 
   @Override
-  public Iterator<E> iterator() {
+  public Iterator<E> iterator(@Readonly ConcurrentHashMultiset<E> this) {
     return Multisets.iteratorImpl(this);
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable ConcurrentHashMultiset<E> this) {
     countMap.clear();
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   private class EntrySet extends AbstractMultiset<E>.EntrySet {
     @Override
     ConcurrentHashMultiset<E> multiset() {
@@ -589,7 +596,7 @@ ConcurrentHashMultiset<E> multiset() {
 
     @Override
     @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
-    public <T extends @Nullable @UnknownSignedness Object> T[] toArray(T[] array) {
+    public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(T[] array) {
       return snapshot().toArray(array);
     }
 
@@ -602,19 +609,19 @@ private List<Multiset.Entry<E>> snapshot() {
 
   @Pure
   @Override
-  public @NonNegative int size() { return super.size(); }
+  public @NonNegative int size(@Readonly EntrySet this) { return super.size(); }
 
   @Pure
   @Override
-  public boolean isEmpty() { return super.isEmpty(); }
+  public boolean isEmpty(@Readonly EntrySet this) { return super.isEmpty(); }
 
   @Pure
   @Override
-  public boolean contains(@Nullable @UnknownSignedness Object arg0) { return super.contains(arg0); }
+  public boolean contains(@Readonly EntrySet this, @Nullable @UnknownSignedness @Readonly Object arg0) { return super.contains(arg0); }
 
   @Pure
   @Override
-  public boolean remove(@Nullable @UnknownSignedness Object arg0) { return super.remove(arg0); }
+  public boolean remove(@Mutable EntrySet this, @Nullable @UnknownSignedness @Readonly Object arg0) { return super.remove(arg0); }
   }
 
   /** @serialData the ConcurrentMap of elements and their counts. */
@@ -634,9 +641,9 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
   private static final long serialVersionUID = 1;
 
 @Override
-public boolean contains(@Nullable @UnknownSignedness Object arg0) { return super.contains(arg0); }
+public boolean contains(@Readonly ConcurrentHashMultiset<E> this, @Nullable @UnknownSignedness @Readonly Object arg0) { return super.contains(arg0); }
 
 @Pure
 @Override
-public boolean containsAll(Collection<?> arg0) { return super.containsAll(arg0); }
+public boolean containsAll(@Readonly ConcurrentHashMultiset<E> this, @Readonly Collection<?> arg0) { return super.containsAll(arg0); }
 }
diff --git a/guava/src/com/google/common/collect/ContiguousSet.java b/guava/src/com/google/common/collect/ContiguousSet.java
index b3e4889d7cf7..ce9bb737f269 100644
--- a/guava/src/com/google/common/collect/ContiguousSet.java
+++ b/guava/src/com/google/common/collect/ContiguousSet.java
@@ -26,6 +26,8 @@
 import java.util.NoSuchElementException;
 import java.util.Set;
 
+import org.checkerframework.checker.pico.qual.Immutable;
+
 /**
  * A sorted set of contiguous values in a given {@link DiscreteDomain}. Example:
  *
@@ -51,6 +53,7 @@
 @GwtCompatible(emulated = true)
 @SuppressWarnings("rawtypes") // allow ungenerified Comparable types
 @ElementTypesAreNonnullByDefault
+@Immutable
 public abstract class ContiguousSet<C extends Comparable> extends ImmutableSortedSet<C> {
   /**
    * Returns a {@code ContiguousSet} containing the same values in the given domain {@linkplain
diff --git a/guava/src/com/google/common/collect/Count.java b/guava/src/com/google/common/collect/Count.java
index 0b819a3b5272..2d2d419d7cf0 100644
--- a/guava/src/com/google/common/collect/Count.java
+++ b/guava/src/com/google/common/collect/Count.java
@@ -17,13 +17,16 @@
 import com.google.common.annotations.GwtCompatible;
 import java.io.Serializable;
 import javax.annotation.CheckForNull;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A mutable value of type {@code int}, for multisets to use in tracking counts of values.
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
 final class Count implements Serializable {
@@ -61,7 +64,7 @@ public int hashCode(@UnknownSignedness Count this) {
   }
 
   @Override
-  public boolean equals(@CheckForNull Object obj) {
+  public boolean equals(@CheckForNull @Readonly Object obj) {
     return obj instanceof Count && ((Count) obj).value == value;
   }
 
diff --git a/guava/src/com/google/common/collect/Cut.java b/guava/src/com/google/common/collect/Cut.java
index 88fbbc8797c2..a1bcb404823f 100644
--- a/guava/src/com/google/common/collect/Cut.java
+++ b/guava/src/com/google/common/collect/Cut.java
@@ -21,7 +21,10 @@
 import java.io.Serializable;
 import java.util.NoSuchElementException;
 import javax.annotation.CheckForNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Implementation detail for the internal structure of {@link Range} instances. Represents a unique
@@ -32,9 +35,11 @@
  *
  * @author Kevin Bourrillion
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class Cut<C extends Comparable> implements Comparable<Cut<C>>, Serializable {
+@Immutable
+abstract class Cut<C extends @Readonly Comparable> implements Comparable<Cut<C>>, Serializable {
   final C endpoint;
 
   Cut(C endpoint) {
@@ -92,7 +97,7 @@ C endpoint() {
 
   @SuppressWarnings("unchecked") // catching CCE
   @Override
-  public boolean equals(@CheckForNull Object obj) {
+  public boolean equals(@CheckForNull @Readonly Object obj) {
     if (obj instanceof Cut) {
       // It might not really be a Cut<C>, but we'll catch a CCE if it's not
       Cut<C> that = (Cut<C>) obj;
@@ -115,13 +120,14 @@ public boolean equals(@CheckForNull Object obj) {
    * casting the type parameter is safe.
    */
   @SuppressWarnings("unchecked")
-  static <C extends Comparable> Cut<C> belowAll() {
+  static <C extends @Readonly Comparable> Cut<C> belowAll() {
     return (Cut<C>) BelowAll.INSTANCE;
   }
 
   private static final long serialVersionUID = 0;
 
-  private static final class BelowAll extends Cut<Comparable<?>> {
+  @Immutable
+  private static final class BelowAll extends Cut<@Readonly Comparable<?>> {
     private static final BelowAll INSTANCE = new BelowAll();
 
     private BelowAll() {
@@ -177,31 +183,31 @@ void describeAsUpperBound(StringBuilder sb) {
     }
 
     @Override
-    Comparable<?> leastValueAbove(DiscreteDomain<Comparable<?>> domain) {
+    Comparable<?> leastValueAbove(DiscreteDomain<@Readonly Comparable<?>> domain) {
       return domain.minValue();
     }
 
     @Override
-    Comparable<?> greatestValueBelow(DiscreteDomain<Comparable<?>> domain) {
+    Comparable<?> greatestValueBelow(DiscreteDomain<@Readonly Comparable<?>> domain) {
       throw new AssertionError();
     }
 
     @Override
-    Cut<Comparable<?>> canonical(DiscreteDomain<Comparable<?>> domain) {
+    Cut<@Readonly Comparable<?>> canonical(DiscreteDomain<@Readonly Comparable<?>> domain) {
       try {
-        return Cut.<Comparable<?>>belowValue(domain.minValue());
+        return Cut.<@Readonly Comparable<?>>belowValue(domain.minValue());
       } catch (NoSuchElementException e) {
         return this;
       }
     }
 
     @Override
-    public int compareTo(Cut<Comparable<?>> o) {
+    public int compareTo(Cut<@Readonly Comparable<?>> o) {
       return (o == this) ? 0 : -1;
     }
 
     @Override
-    public int hashCode(@UnknownSignedness BelowAll this) {
+    public int hashCode(@UnknownSignedness @Readonly BelowAll this) {
       return System.identityHashCode(this);
     }
 
@@ -222,11 +228,12 @@ private Object readResolve() {
    * type C, so casting the type parameter is safe.
    */
   @SuppressWarnings("unchecked")
-  static <C extends Comparable> Cut<C> aboveAll() {
+  static <C extends @Readonly Comparable> Cut<C> aboveAll() {
     return (Cut<C>) AboveAll.INSTANCE;
   }
 
-  private static final class AboveAll extends Cut<Comparable<?>> {
+  @Immutable
+  private static final class AboveAll extends Cut<@Readonly Comparable<?>> {
     private static final AboveAll INSTANCE = new AboveAll();
 
     private AboveAll() {
@@ -308,11 +315,12 @@ private Object readResolve() {
     private static final long serialVersionUID = 0;
   }
 
-  static <C extends Comparable> Cut<C> belowValue(C endpoint) {
+  static <C extends @Readonly Comparable> Cut<C> belowValue(C endpoint) {
     return new BelowValue<>(endpoint);
   }
 
-  private static final class BelowValue<C extends Comparable> extends Cut<C> {
+  @Immutable
+  private static final class BelowValue<C extends @Readonly Comparable> extends Cut<C> {
     BelowValue(C endpoint) {
       super(checkNotNull(endpoint));
     }
@@ -392,11 +400,12 @@ public String toString() {
     private static final long serialVersionUID = 0;
   }
 
-  static <C extends Comparable> Cut<C> aboveValue(C endpoint) {
+  static <C extends @Readonly Comparable> Cut<C> aboveValue(C endpoint) {
     return new AboveValue<>(endpoint);
   }
 
-  private static final class AboveValue<C extends Comparable> extends Cut<C> {
+  @Immutable
+  private static final class AboveValue<C extends @Readonly Comparable> extends Cut<C> {
     AboveValue(C endpoint) {
       super(checkNotNull(endpoint));
     }
@@ -470,7 +479,7 @@ Cut<C> canonical(DiscreteDomain<C> domain) {
     }
 
     @Override
-    public int hashCode(@UnknownSignedness AboveValue<C> this) {
+    public int hashCode(@UnknownSignedness @Readonly AboveValue<C> this) {
       return ~endpoint.hashCode();
     }
 
diff --git a/guava/src/com/google/common/collect/DenseImmutableTable.java b/guava/src/com/google/common/collect/DenseImmutableTable.java
index 4abf1eb81c76..11a413588883 100644
--- a/guava/src/com/google/common/collect/DenseImmutableTable.java
+++ b/guava/src/com/google/common/collect/DenseImmutableTable.java
@@ -18,19 +18,22 @@
 
 import com.google.common.annotations.GwtCompatible;
 import com.google.common.collect.ImmutableMap.IteratorBasedImmutableMap;
-import com.google.errorprone.annotations.Immutable;
+//import com.google.errorprone.annotations.Immutable;
 import com.google.j2objc.annotations.WeakOuter;
 import java.util.Map;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /** A {@code RegularImmutableTable} optimized for dense data. */
 @GwtCompatible
-@Immutable(containerOf = {"R", "C", "V"})
+//@Immutable(containerOf = {"R", "C", "V"})
 @ElementTypesAreNonnullByDefault
-final class DenseImmutableTable<R, C, V> extends RegularImmutableTable<R, C, V> {
+@Immutable
+final class DenseImmutableTable<R extends @Immutable Object, C extends @Immutable Object, V> extends RegularImmutableTable<R, C, V> {
   private final ImmutableMap<R, Integer> rowKeyToIndex;
   private final ImmutableMap<C, Integer> columnKeyToIndex;
   private final ImmutableMap<R, ImmutableMap<C, V>> rowMap;
@@ -89,7 +92,8 @@ final class DenseImmutableTable<R, C, V> extends RegularImmutableTable<R, C, V>
   }
 
   /** An immutable map implementation backed by an indexed nullable array. */
-  private abstract static class ImmutableArrayMap<K, V> extends IteratorBasedImmutableMap<K, V> {
+  @Immutable
+  private abstract static class ImmutableArrayMap<K extends @Immutable Object, V> extends IteratorBasedImmutableMap<K, V> {
     private final int size;
 
     ImmutableArrayMap(int size) {
@@ -122,7 +126,7 @@ ImmutableSet<K> createKeySet() {
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull @UnknownSignedness Object key) {
+    public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       Integer keyIndex = keyToIndex().get(key);
       return (keyIndex == null) ? null : getValue(keyIndex);
     }
@@ -148,6 +152,7 @@ protected Entry<K, V> computeNext() {
     }
   }
 
+  @Immutable
   private final class Row extends ImmutableArrayMap<C, V> {
     private final int rowIndex;
 
@@ -173,6 +178,7 @@ boolean isPartialView() {
     }
   }
 
+  @Immutable
   private final class Column extends ImmutableArrayMap<R, V> {
     private final int columnIndex;
 
@@ -199,6 +205,7 @@ boolean isPartialView() {
   }
 
   @WeakOuter
+  @Immutable
   private final class RowMap extends ImmutableArrayMap<R, ImmutableMap<C, V>> {
     private RowMap() {
       super(rowCounts.length);
@@ -221,6 +228,7 @@ boolean isPartialView() {
   }
 
   @WeakOuter
+  @Immutable
   private final class ColumnMap extends ImmutableArrayMap<C, ImmutableMap<R, V>> {
     private ColumnMap() {
       super(columnCounts.length);
diff --git a/guava/src/com/google/common/collect/DescendingImmutableSortedMultiset.java b/guava/src/com/google/common/collect/DescendingImmutableSortedMultiset.java
index f8c9b0c7bbf3..9401121ef938 100644
--- a/guava/src/com/google/common/collect/DescendingImmutableSortedMultiset.java
+++ b/guava/src/com/google/common/collect/DescendingImmutableSortedMultiset.java
@@ -17,7 +17,10 @@
 import com.google.common.annotations.GwtIncompatible;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A descending wrapper around an {@code ImmutableSortedMultiset}
@@ -25,8 +28,10 @@
  * @author Louis Wasserman
  */
 @SuppressWarnings("serial") // uses writeReplace, not default serialization
+@AnnotatedFor("pico")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class DescendingImmutableSortedMultiset<E> extends ImmutableSortedMultiset<E> {
   private final transient ImmutableSortedMultiset<E> forward;
 
@@ -35,7 +40,7 @@ final class DescendingImmutableSortedMultiset<E> extends ImmutableSortedMultiset
   }
 
   @Override
-  public @NonNegative int count(@CheckForNull @UnknownSignedness Object element) {
+  public @NonNegative int count(@CheckForNull @UnknownSignedness @Readonly Object element) {
     return forward.count(element);
   }
 
diff --git a/guava/src/com/google/common/collect/DescendingImmutableSortedSet.java b/guava/src/com/google/common/collect/DescendingImmutableSortedSet.java
index 235812e9d6c6..c721b542add3 100644
--- a/guava/src/com/google/common/collect/DescendingImmutableSortedSet.java
+++ b/guava/src/com/google/common/collect/DescendingImmutableSortedSet.java
@@ -19,15 +19,20 @@
 import com.google.common.annotations.GwtIncompatible;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Skeletal implementation of {@link ImmutableSortedSet#descendingSet()}.
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class DescendingImmutableSortedSet<E> extends ImmutableSortedSet<E> {
   private final ImmutableSortedSet<E> forward;
 
@@ -37,7 +42,7 @@ final class DescendingImmutableSortedSet<E> extends ImmutableSortedSet<E> {
   }
 
   @Override
-  public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+  public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
     return forward.contains(object);
   }
 
diff --git a/guava/src/com/google/common/collect/DescendingMultiset.java b/guava/src/com/google/common/collect/DescendingMultiset.java
index cec800966835..1bc7a603a65d 100644
--- a/guava/src/com/google/common/collect/DescendingMultiset.java
+++ b/guava/src/com/google/common/collect/DescendingMultiset.java
@@ -26,6 +26,8 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
@@ -37,7 +39,8 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-abstract class DescendingMultiset<E extends @Nullable Object> extends ForwardingMultiset<E>
+@ReceiverDependentMutable
+abstract class DescendingMultiset<E extends @Nullable @Readonly Object> extends ForwardingMultiset<E>
     implements SortedMultiset<E> {
   abstract SortedMultiset<E> forwardMultiset();
 
diff --git a/guava/src/com/google/common/collect/DiscreteDomain.java b/guava/src/com/google/common/collect/DiscreteDomain.java
index 0233feb76e10..1c3f8673a33b 100644
--- a/guava/src/com/google/common/collect/DiscreteDomain.java
+++ b/guava/src/com/google/common/collect/DiscreteDomain.java
@@ -27,6 +27,10 @@
 import java.util.NoSuchElementException;
 import javax.annotation.CheckForNull;
 
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
+
 /**
  * A descriptor for a <i>discrete</i> {@code Comparable} domain such as all {@link Integer}
  * instances. A discrete domain is one that supports the three basic operations: {@link #next},
@@ -43,9 +47,11 @@
  * @author Kevin Bourrillion
  * @since 10.0
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class DiscreteDomain<C extends Comparable> {
+@Immutable
+public abstract class DiscreteDomain<C extends @Readonly Comparable> {
 
   /**
    * Returns the discrete domain for values of type {@code Integer}.
@@ -56,6 +62,7 @@ public static DiscreteDomain<Integer> integers() {
     return IntegerDomain.INSTANCE;
   }
 
+  @Immutable
   private static final class IntegerDomain extends DiscreteDomain<Integer> implements Serializable {
     private static final IntegerDomain INSTANCE = new IntegerDomain();
 
@@ -120,6 +127,7 @@ public static DiscreteDomain<Long> longs() {
     return LongDomain.INSTANCE;
   }
 
+  @Immutable
   private static final class LongDomain extends DiscreteDomain<Long> implements Serializable {
     private static final LongDomain INSTANCE = new LongDomain();
 
@@ -194,6 +202,7 @@ public static DiscreteDomain<BigInteger> bigIntegers() {
     return BigIntegerDomain.INSTANCE;
   }
 
+  @Immutable
   private static final class BigIntegerDomain extends DiscreteDomain<BigInteger>
       implements Serializable {
     private static final BigIntegerDomain INSTANCE = new BigIntegerDomain();
diff --git a/guava/src/com/google/common/collect/EmptyContiguousSet.java b/guava/src/com/google/common/collect/EmptyContiguousSet.java
index af2397fc0fa5..e1a2c4c2dc02 100644
--- a/guava/src/com/google/common/collect/EmptyContiguousSet.java
+++ b/guava/src/com/google/common/collect/EmptyContiguousSet.java
@@ -20,6 +20,7 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -30,6 +31,7 @@
 @GwtCompatible(emulated = true)
 @SuppressWarnings("rawtypes") // allow ungenerified Comparable types
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class EmptyContiguousSet<C extends Comparable> extends ContiguousSet<C> {
   EmptyContiguousSet(DiscreteDomain<C> domain) {
     super(domain);
diff --git a/guava/src/com/google/common/collect/EmptyImmutableListMultimap.java b/guava/src/com/google/common/collect/EmptyImmutableListMultimap.java
index 5213d3411472..e91b96f7b418 100644
--- a/guava/src/com/google/common/collect/EmptyImmutableListMultimap.java
+++ b/guava/src/com/google/common/collect/EmptyImmutableListMultimap.java
@@ -17,6 +17,8 @@
 package com.google.common.collect;
 
 import com.google.common.annotations.GwtCompatible;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -24,17 +26,18 @@
  *
  * @author Jared Levy
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-class EmptyImmutableListMultimap extends ImmutableListMultimap<Object, Object> {
+@Immutable
+class EmptyImmutableListMultimap extends ImmutableListMultimap<@Immutable Object, @Immutable Object> {
   static final EmptyImmutableListMultimap INSTANCE = new EmptyImmutableListMultimap();
 
   private EmptyImmutableListMultimap() {
-    super(ImmutableMap.<Object, ImmutableList<Object>>of(), 0);
+    super(ImmutableMap.<@Immutable Object, ImmutableList<@Readonly Object>>of(), 0);
   }
 
-  private Object readResolve() {
+  private @Immutable Object readResolve() {
     return INSTANCE; // preserve singleton property
   }
 
diff --git a/guava/src/com/google/common/collect/EmptyImmutableSetMultimap.java b/guava/src/com/google/common/collect/EmptyImmutableSetMultimap.java
index 5e6e3c24f51e..60cab2239f4e 100644
--- a/guava/src/com/google/common/collect/EmptyImmutableSetMultimap.java
+++ b/guava/src/com/google/common/collect/EmptyImmutableSetMultimap.java
@@ -17,6 +17,8 @@
 package com.google.common.collect;
 
 import com.google.common.annotations.GwtCompatible;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -27,11 +29,12 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-class EmptyImmutableSetMultimap extends ImmutableSetMultimap<Object, Object> {
+@Immutable
+class EmptyImmutableSetMultimap extends ImmutableSetMultimap<@Immutable Object, @Readonly Object> {
   static final EmptyImmutableSetMultimap INSTANCE = new EmptyImmutableSetMultimap();
 
   private EmptyImmutableSetMultimap() {
-    super(ImmutableMap.<Object, ImmutableSet<Object>>of(), 0, null);
+    super(ImmutableMap.<@Immutable Object, ImmutableSet<Object>>of(), 0, null);
   }
 
   private Object readResolve() {
diff --git a/guava/src/com/google/common/collect/EnumBiMap.java b/guava/src/com/google/common/collect/EnumBiMap.java
index 7eff19d7c977..5adfeba51537 100644
--- a/guava/src/com/google/common/collect/EnumBiMap.java
+++ b/guava/src/com/google/common/collect/EnumBiMap.java
@@ -27,6 +27,7 @@
 import java.util.EnumMap;
 import java.util.Map;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -44,7 +45,7 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class EnumBiMap<K extends Enum<K>, V extends Enum<V>> extends AbstractBiMap<K, V> {
+public final class EnumBiMap<K extends @Immutable Enum<K>, V extends @Immutable Enum<V>> extends AbstractBiMap<K, V> {
   private transient Class<K> keyType;
   private transient Class<V> valueType;
 
diff --git a/guava/src/com/google/common/collect/EnumHashBiMap.java b/guava/src/com/google/common/collect/EnumHashBiMap.java
index 960575542679..9b419cc03833 100644
--- a/guava/src/com/google/common/collect/EnumHashBiMap.java
+++ b/guava/src/com/google/common/collect/EnumHashBiMap.java
@@ -29,6 +29,10 @@
 import java.util.Map;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -44,10 +48,11 @@
  * @author Mike Bostock
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class EnumHashBiMap<K extends Enum<K>, V extends @Nullable Object>
+@ReceiverDependentMutable
+public final class EnumHashBiMap<K extends Enum<K>, V extends @Nullable @Immutable Object>
     extends AbstractBiMap<K, V> {
   private transient Class<K> keyType;
 
@@ -56,7 +61,7 @@ public final class EnumHashBiMap<K extends Enum<K>, V extends @Nullable Object>
    *
    * @param keyType the key type
    */
-  public static <K extends Enum<K>, V extends @Nullable Object> EnumHashBiMap<K, V> create(
+  public static <K extends Enum<K>, V extends @Nullable @Immutable Object> EnumHashBiMap<K, V> create(
       Class<K> keyType) {
     return new EnumHashBiMap<>(keyType);
   }
@@ -71,7 +76,7 @@ public final class EnumHashBiMap<K extends Enum<K>, V extends @Nullable Object>
    * @throws IllegalArgumentException if map is not an {@code EnumBiMap} or an {@code EnumHashBiMap}
    *     instance and contains no mappings
    */
-  public static <K extends Enum<K>, V extends @Nullable Object> EnumHashBiMap<K, V> create(
+  public static <K extends Enum<K>, V extends @Nullable @Immutable Object> EnumHashBiMap<K, V> create(
       Map<K, ? extends V> map) {
     EnumHashBiMap<K, V> bimap = create(EnumBiMap.inferKeyType(map));
     bimap.putAll(map);
@@ -88,7 +93,7 @@ private EnumHashBiMap(Class<K> keyType) {
   // Overriding these 3 methods to show that values may be null (but not keys)
 
   @Override
-  K checkKey(K key) {
+  K checkKey(@Readonly EnumHashBiMap<K,V> this, K key) {
     return checkNotNull(key);
   }
 
@@ -97,7 +102,7 @@ K checkKey(K key) {
   @SuppressWarnings("RedundantOverride") // b/192446478: RedundantOverride ignores some annotations.
   // TODO(b/192446998): Remove this override after tools understand nullness better.
   @CheckForNull
-  public V put(K key, @ParametricNullness V value) {
+  public V put(@Mutable EnumHashBiMap<K,V> this, K key, @ParametricNullness V value) {
     return super.put(key, value);
   }
 
@@ -106,12 +111,12 @@ public V put(K key, @ParametricNullness V value) {
   @SuppressWarnings("RedundantOverride") // b/192446478: RedundantOverride ignores some annotations.
   // TODO(b/192446998): Remove this override after tools understand nullness better.
   @CheckForNull
-  public V forcePut(K key, @ParametricNullness V value) {
+  public V forcePut(@Mutable EnumHashBiMap<K,V> this, K key, @ParametricNullness V value) {
     return super.forcePut(key, value);
   }
 
   /** Returns the associated key type. */
-  public Class<K> keyType() {
+  public Class<K> keyType(@Readonly EnumHashBiMap<K,V> this) {
     return keyType;
   }
 
@@ -141,5 +146,5 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
 
 @Pure
 @Override
-public boolean containsValue(@Nullable @UnknownSignedness Object arg0) { return super.containsValue(arg0); }
+public boolean containsValue(@Readonly EnumHashBiMap<K,V> this, @Nullable @UnknownSignedness @Readonly Object arg0) { return super.containsValue(arg0); }
 }
diff --git a/guava/src/com/google/common/collect/ExplicitOrdering.java b/guava/src/com/google/common/collect/ExplicitOrdering.java
index 8f6454b6c01d..1772b196c4f4 100644
--- a/guava/src/com/google/common/collect/ExplicitOrdering.java
+++ b/guava/src/com/google/common/collect/ExplicitOrdering.java
@@ -21,18 +21,21 @@
 import java.util.List;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /** An ordering that compares objects according to a given order. */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-final class ExplicitOrdering<T> extends Ordering<T> implements Serializable {
+final class ExplicitOrdering<T extends @Immutable Object> extends Ordering<T> implements Serializable {
   final ImmutableMap<T, Integer> rankMap;
 
-  ExplicitOrdering(List<T> valuesInOrder) {
+  ExplicitOrdering(@Readonly List<T> valuesInOrder) {
     this(Maps.indexMap(valuesInOrder));
   }
 
@@ -56,7 +59,7 @@ private int rank(T value) {
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@CheckForNull @Readonly Object object) {
     if (object instanceof ExplicitOrdering) {
       ExplicitOrdering<?> that = (ExplicitOrdering<?>) object;
       return this.rankMap.equals(that.rankMap);
diff --git a/guava/src/com/google/common/collect/FilteredEntryMultimap.java b/guava/src/com/google/common/collect/FilteredEntryMultimap.java
index f76c2ab90f4d..3ce476733874 100644
--- a/guava/src/com/google/common/collect/FilteredEntryMultimap.java
+++ b/guava/src/com/google/common/collect/FilteredEntryMultimap.java
@@ -36,6 +36,9 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -46,7 +49,8 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-class FilteredEntryMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+class FilteredEntryMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractMultimap<K, V> implements FilteredMultimap<K, V> {
   final Multimap<K, V> unfiltered;
   final Predicate<? super Entry<K, V>> predicate;
@@ -88,7 +92,7 @@ public boolean apply(@ParametricNullness V value) {
     }
   }
 
-  static <E extends @Nullable Object> Collection<E> filterCollection(
+  static <E extends @Nullable @Readonly Object> Collection<E> filterCollection(
       Collection<E> collection, Predicate<? super E> predicate) {
     if (collection instanceof Set) {
       return Sets.filter((Set<E>) collection, predicate);
@@ -98,12 +102,12 @@ public boolean apply(@ParametricNullness V value) {
   }
 
   @Override
-  public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+  public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
     return asMap().get(key) != null;
   }
 
   @Override
-  public Collection<V> removeAll(@CheckForNull Object key) {
+  public Collection<V> removeAll(@CheckForNull @Readonly Object key) {
     return MoreObjects.firstNonNull(asMap().remove(key), unmodifiableEmptyCollection());
   }
 
@@ -171,7 +175,7 @@ boolean removeEntriesIf(Predicate<? super Entry<K, Collection<V>>> predicate) {
   @WeakOuter
   class AsMap extends ViewCachingAbstractMap<K, Collection<V>> {
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return get(key) != null;
     }
 
@@ -182,7 +186,7 @@ public void clear() {
 
     @Override
     @CheckForNull
-    public Collection<V> get(@CheckForNull @UnknownSignedness Object key) {
+    public Collection<V> get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       Collection<V> result = unfiltered.asMap().get(key);
       if (result == null) {
         return null;
@@ -195,7 +199,7 @@ public Collection<V> get(@CheckForNull @UnknownSignedness Object key) {
 
     @Override
     @CheckForNull
-    public Collection<V> remove(@CheckForNull @UnknownSignedness Object key) {
+    public @Immutable Collection<V> remove(@CheckForNull @UnknownSignedness @Readonly Object key) {
       Collection<V> collection = unfiltered.asMap().get(key);
       if (collection == null) {
         return null;
@@ -354,7 +358,7 @@ class Keys extends Multimaps.Keys<K, V> {
     }
 
     @Override
-    public int remove(@CheckForNull Object key, int occurrences) {
+    public int remove(@CheckForNull @Readonly Object key, int occurrences) {
       checkNonnegative(occurrences, "occurrences");
       if (occurrences == 0) {
         return count(key);
diff --git a/guava/src/com/google/common/collect/FilteredEntrySetMultimap.java b/guava/src/com/google/common/collect/FilteredEntrySetMultimap.java
index 20413f8c4096..d25e7933b294 100644
--- a/guava/src/com/google/common/collect/FilteredEntrySetMultimap.java
+++ b/guava/src/com/google/common/collect/FilteredEntrySetMultimap.java
@@ -22,48 +22,56 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Implementation of {@link Multimaps#filterEntries(SetMultimap, Predicate)}.
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-final class FilteredEntrySetMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+final class FilteredEntrySetMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends FilteredEntryMultimap<K, V> implements FilteredSetMultimap<K, V> {
 
-  FilteredEntrySetMultimap(SetMultimap<K, V> unfiltered, Predicate<? super Entry<K, V>> predicate) {
+  FilteredEntrySetMultimap(@ReceiverDependentMutable SetMultimap<K, V> unfiltered, Predicate<? super Entry<K, V>> predicate) {
     super(unfiltered, predicate);
   }
 
   @Override
-  public SetMultimap<K, V> unfiltered() {
-    return (SetMultimap<K, V>) unfiltered;
+  public @PolyMutable SetMultimap<K, V> unfiltered(@PolyMutable FilteredEntrySetMultimap<K, V> this) {
+    return (@PolyMutable SetMultimap<K, V>) unfiltered;
   }
 
   @Override
-  public Set<V> get(@ParametricNullness K key) {
-    return (Set<V>) super.get(key);
+  public @PolyMutable Set<V> get(@PolyMutable FilteredEntrySetMultimap<K, V> this, @ParametricNullness K key) {
+    return (@PolyMutable Set<V>) super.get(key);
   }
 
   @Override
-  public Set<V> removeAll(@CheckForNull Object key) {
-    return (Set<V>) super.removeAll(key);
+  public @Readonly Set<V> removeAll(@Mutable FilteredEntrySetMultimap<K, V> this, @CheckForNull @Readonly Object key) {
+    return (@Readonly Set<V>) super.removeAll(key);
   }
 
   @Override
-  public Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+  public Set<V> replaceValues(@Mutable FilteredEntrySetMultimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values) {
     return (Set<V>) super.replaceValues(key, values);
   }
 
   @Override
-  Set<Entry<K, V>> createEntries() {
+  @PolyMutable Set<@PolyMutable Entry<K, V>> createEntries(@PolyMutable FilteredEntrySetMultimap<K, V> this) {
     return Sets.filter(unfiltered().entries(), entryPredicate());
   }
 
   @Override
-  public Set<Entry<K, V>> entries() {
-    return (Set<Entry<K, V>>) super.entries();
+  public @PolyMutable Set<@PolyMutable Entry<K, V>> entries(@PolyMutable FilteredEntrySetMultimap<K, V> this) {
+    return (@PolyMutable Set<@PolyMutable Entry<K, V>>) super.entries();
   }
 }
diff --git a/guava/src/com/google/common/collect/FilteredKeyListMultimap.java b/guava/src/com/google/common/collect/FilteredKeyListMultimap.java
index c82c8daf770d..355b8e4e9997 100644
--- a/guava/src/com/google/common/collect/FilteredKeyListMultimap.java
+++ b/guava/src/com/google/common/collect/FilteredKeyListMultimap.java
@@ -21,6 +21,8 @@
 import java.util.List;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * Implementation of {@link Multimaps#filterKeys(ListMultimap, Predicate)}.
@@ -29,7 +31,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-final class FilteredKeyListMultimap<K extends @Nullable Object, V extends @Nullable Object>
+final class FilteredKeyListMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends FilteredKeyMultimap<K, V> implements ListMultimap<K, V> {
   FilteredKeyListMultimap(ListMultimap<K, V> unfiltered, Predicate<? super K> keyPredicate) {
     super(unfiltered, keyPredicate);
@@ -46,7 +48,7 @@ public List<V> get(@ParametricNullness K key) {
   }
 
   @Override
-  public List<V> removeAll(@CheckForNull Object key) {
+  public List<V> removeAll(@CheckForNull @Readonly Object key) {
     return (List<V>) super.removeAll(key);
   }
 
diff --git a/guava/src/com/google/common/collect/FilteredKeyMultimap.java b/guava/src/com/google/common/collect/FilteredKeyMultimap.java
index 0351fdcc0f78..6c471e57d754 100644
--- a/guava/src/com/google/common/collect/FilteredKeyMultimap.java
+++ b/guava/src/com/google/common/collect/FilteredKeyMultimap.java
@@ -32,6 +32,9 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -41,7 +44,8 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-class FilteredKeyMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+class FilteredKeyMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractMultimap<K, V> implements FilteredMultimap<K, V> {
   final Multimap<K, V> unfiltered;
   final Predicate<? super K> keyPredicate;
@@ -71,7 +75,7 @@ public int size() {
   }
 
   @Override
-  public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+  public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
     if (unfiltered.containsKey(key)) {
       @SuppressWarnings("unchecked") // k is equal to a K, if not one itself
       K k = (K) key;
@@ -81,11 +85,11 @@ public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
   }
 
   @Override
-  public Collection<V> removeAll(@CheckForNull Object key) {
+  public Collection<V> removeAll(@CheckForNull @Readonly Object key) {
     return containsKey(key) ? unfiltered.removeAll(key) : unmodifiableEmptyCollection();
   }
 
-  Collection<V> unmodifiableEmptyCollection() {
+  @Immutable Collection<V> unmodifiableEmptyCollection() {
     if (unfiltered instanceof SetMultimap) {
       return emptySet();
     } else {
@@ -114,7 +118,7 @@ public Collection<V> get(@ParametricNullness K key) {
     }
   }
 
-  static class AddRejectingSet<K extends @Nullable Object, V extends @Nullable Object>
+  static class AddRejectingSet<K extends @Nullable @Immutable Object, V extends @Nullable Object>
       extends ForwardingSet<V> {
     @ParametricNullness final K key;
 
@@ -139,7 +143,7 @@ protected Set<V> delegate() {
     }
   }
 
-  static class AddRejectingList<K extends @Nullable Object, V extends @Nullable Object>
+  static class AddRejectingList<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends ForwardingList<V> {
     @ParametricNullness final K key;
 
diff --git a/guava/src/com/google/common/collect/FilteredKeySetMultimap.java b/guava/src/com/google/common/collect/FilteredKeySetMultimap.java
index 22b4028142f9..90446b086b9d 100644
--- a/guava/src/com/google/common/collect/FilteredKeySetMultimap.java
+++ b/guava/src/com/google/common/collect/FilteredKeySetMultimap.java
@@ -22,6 +22,8 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -31,7 +33,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-final class FilteredKeySetMultimap<K extends @Nullable Object, V extends @Nullable Object>
+final class FilteredKeySetMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends FilteredKeyMultimap<K, V> implements FilteredSetMultimap<K, V> {
 
   FilteredKeySetMultimap(SetMultimap<K, V> unfiltered, Predicate<? super K> keyPredicate) {
@@ -49,7 +51,7 @@ public Set<V> get(@ParametricNullness K key) {
   }
 
   @Override
-  public Set<V> removeAll(@CheckForNull Object key) {
+  public Set<V> removeAll(@CheckForNull @Readonly Object key) {
     return (Set<V>) super.removeAll(key);
   }
 
diff --git a/guava/src/com/google/common/collect/FilteredMultimap.java b/guava/src/com/google/common/collect/FilteredMultimap.java
index 4e1fa066f80b..f51aa34a9329 100644
--- a/guava/src/com/google/common/collect/FilteredMultimap.java
+++ b/guava/src/com/google/common/collect/FilteredMultimap.java
@@ -20,17 +20,24 @@
 import com.google.common.base.Predicate;
 import java.util.Map.Entry;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * An interface for all filtered multimap types.
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-interface FilteredMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+interface FilteredMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends Multimap<K, V> {
-  Multimap<K, V> unfiltered();
+  @PolyMutable Multimap<K, V> unfiltered(@PolyMutable FilteredMultimap<K, V> this);
 
-  Predicate<? super Entry<K, V>> entryPredicate();
+  Predicate<? super Entry<K, V>> entryPredicate(@Readonly FilteredMultimap<K, V> this);
 }
diff --git a/guava/src/com/google/common/collect/FilteredMultimapValues.java b/guava/src/com/google/common/collect/FilteredMultimapValues.java
index 5954d651e677..bf814bee1418 100644
--- a/guava/src/com/google/common/collect/FilteredMultimapValues.java
+++ b/guava/src/com/google/common/collect/FilteredMultimapValues.java
@@ -28,6 +28,10 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -37,11 +41,12 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-final class FilteredMultimapValues<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+final class FilteredMultimapValues<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractCollection<V> {
   @Weak private final FilteredMultimap<K, V> multimap;
 
-  FilteredMultimapValues(FilteredMultimap<K, V> multimap) {
+  FilteredMultimapValues(@ReceiverDependentMutable FilteredMultimap<K, V> multimap) {
     this.multimap = checkNotNull(multimap);
   }
 
@@ -51,17 +56,17 @@ public Iterator<V> iterator() {
   }
 
   @Override
-  public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+  public boolean contains(@Readonly FilteredMultimapValues<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
     return multimap.containsValue(o);
   }
 
   @Override
-  public @NonNegative int size() {
+  public @NonNegative int size(@Readonly FilteredMultimapValues<K, V> this) {
     return multimap.size();
   }
 
   @Override
-  public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+  public boolean remove(@Mutable FilteredMultimapValues<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
     Predicate<? super Entry<K, V>> entryPredicate = multimap.entryPredicate();
     for (Iterator<Entry<K, V>> unfilteredItr = multimap.unfiltered().entries().iterator();
         unfilteredItr.hasNext(); ) {
@@ -75,7 +80,7 @@ public boolean remove(@CheckForNull @UnknownSignedness Object o) {
   }
 
   @Override
-  public boolean removeAll(Collection<?> c) {
+  public boolean removeAll(@Mutable FilteredMultimapValues<K, V> this, @Readonly Collection<?> c) {
     return Iterables.removeIf(
         multimap.unfiltered().entries(),
         // explicit <Entry<K, V>> is required to build with JDK6
@@ -84,7 +89,7 @@ public boolean removeAll(Collection<?> c) {
   }
 
   @Override
-  public boolean retainAll(Collection<?> c) {
+  public boolean retainAll(@Mutable FilteredMultimapValues<K, V> this, @Readonly Collection<?> c) {
     return Iterables.removeIf(
         multimap.unfiltered().entries(),
         // explicit <Entry<K, V>> is required to build with JDK6
@@ -94,7 +99,7 @@ public boolean retainAll(Collection<?> c) {
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable FilteredMultimapValues<K, V> this) {
     multimap.clear();
   }
 }
diff --git a/guava/src/com/google/common/collect/FilteredSetMultimap.java b/guava/src/com/google/common/collect/FilteredSetMultimap.java
index 8e2ff7c0c1a6..042c9b104319 100644
--- a/guava/src/com/google/common/collect/FilteredSetMultimap.java
+++ b/guava/src/com/google/common/collect/FilteredSetMultimap.java
@@ -18,16 +18,23 @@
 
 import com.google.common.annotations.GwtCompatible;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A supertype for filtered {@link SetMultimap} implementations.
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-interface FilteredSetMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+interface FilteredSetMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends FilteredMultimap<K, V>, SetMultimap<K, V> {
   @Override
-  SetMultimap<K, V> unfiltered();
+  @PolyMutable SetMultimap<K, V> unfiltered(@PolyMutable FilteredSetMultimap<K, V> this);
 }
diff --git a/guava/src/com/google/common/collect/FluentIterable.java b/guava/src/com/google/common/collect/FluentIterable.java
index 11bda3bde95f..7dd663d1c260 100644
--- a/guava/src/com/google/common/collect/FluentIterable.java
+++ b/guava/src/com/google/common/collect/FluentIterable.java
@@ -35,6 +35,9 @@
 import java.util.stream.Stream;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * A discouraged (but not deprecated) precursor to Java's superior {@link Stream} library.
@@ -110,7 +113,7 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-public abstract class FluentIterable<E extends @Nullable Object> implements Iterable<E> {
+public abstract class FluentIterable<E extends @Nullable @Readonly Object> implements Iterable<E> {
   // We store 'iterable' and use it instead of 'this' to allow Iterables to perform instanceof
   // checks on the _original_ iterable when FluentIterable.from is used.
   // To avoid a self retain cycle under j2objc, we store Optional.absent() instead of
@@ -138,7 +141,7 @@ private Iterable<E> getDelegate() {
    * <p><b>{@code Stream} equivalent:</b> {@link Collection#stream} if {@code iterable} is a {@link
    * Collection}; {@link Streams#stream(Iterable)} otherwise.
    */
-  public static <E extends @Nullable Object> FluentIterable<E> from(final Iterable<E> iterable) {
+  public static <E extends @Nullable @Readonly Object> FluentIterable<E> from(final Iterable<E> iterable) {
     return (iterable instanceof FluentIterable)
         ? (FluentIterable<E>) iterable
         : new FluentIterable<E>(iterable) {
@@ -160,7 +163,7 @@ public Iterator<E> iterator() {
    * @since 20.0 (since 18.0 as an overload of {@code of})
    */
   @Beta
-  public static <E extends @Nullable Object> FluentIterable<E> from(E[] elements) {
+  public static <E extends @Nullable @Readonly Object> FluentIterable<E> from(E[] elements) {
     return from(Arrays.asList(elements));
   }
 
@@ -176,7 +179,7 @@ public Iterator<E> iterator() {
   @InlineMe(
       replacement = "checkNotNull(iterable)",
       staticImports = {"com.google.common.base.Preconditions.checkNotNull"})
-  public static <E extends @Nullable Object> FluentIterable<E> from(FluentIterable<E> iterable) {
+  public static <E extends @Nullable @Readonly Object> FluentIterable<E> from(FluentIterable<E> iterable) {
     return checkNotNull(iterable);
   }
 
@@ -193,7 +196,7 @@ public Iterator<E> iterator() {
    * @since 20.0
    */
   @Beta
-  public static <T extends @Nullable Object> FluentIterable<T> concat(
+  public static <T extends @Nullable @Readonly Object> FluentIterable<T> concat(
       Iterable<? extends T> a, Iterable<? extends T> b) {
     return concatNoDefensiveCopy(a, b);
   }
@@ -212,7 +215,7 @@ public Iterator<E> iterator() {
    * @since 20.0
    */
   @Beta
-  public static <T extends @Nullable Object> FluentIterable<T> concat(
+  public static <T extends @Nullable @Readonly Object> FluentIterable<T> concat(
       Iterable<? extends T> a, Iterable<? extends T> b, Iterable<? extends T> c) {
     return concatNoDefensiveCopy(a, b, c);
   }
@@ -232,7 +235,7 @@ public Iterator<E> iterator() {
    * @since 20.0
    */
   @Beta
-  public static <T extends @Nullable Object> FluentIterable<T> concat(
+  public static <T extends @Nullable @Readonly Object> FluentIterable<T> concat(
       Iterable<? extends T> a,
       Iterable<? extends T> b,
       Iterable<? extends T> c,
@@ -256,7 +259,7 @@ public Iterator<E> iterator() {
    * @since 20.0
    */
   @Beta
-  public static <T extends @Nullable Object> FluentIterable<T> concat(
+  public static <T extends @Nullable @Readonly Object> FluentIterable<T> concat(
       Iterable<? extends T>... inputs) {
     return concatNoDefensiveCopy(Arrays.copyOf(inputs, inputs.length));
   }
@@ -276,7 +279,7 @@ public Iterator<E> iterator() {
    * @since 20.0
    */
   @Beta
-  public static <T extends @Nullable Object> FluentIterable<T> concat(
+  public static <T extends @Nullable @Readonly Object> FluentIterable<T> concat(
       final Iterable<? extends Iterable<? extends T>> inputs) {
     checkNotNull(inputs);
     return new FluentIterable<T>() {
@@ -288,7 +291,7 @@ public Iterator<T> iterator() {
   }
 
   /** Concatenates a varargs array of iterables without making a defensive copy of the array. */
-  private static <T extends @Nullable Object> FluentIterable<T> concatNoDefensiveCopy(
+  private static <T extends @Nullable @Readonly Object> FluentIterable<T> concatNoDefensiveCopy(
       final Iterable<? extends T>... inputs) {
     for (Iterable<? extends T> input : inputs) {
       checkNotNull(input);
@@ -316,7 +319,7 @@ public Iterator<? extends T> get(int i) {
    * @since 20.0
    */
   @Beta
-  public static <E extends @Nullable Object> FluentIterable<E> of() {
+  public static <E extends @Nullable @Readonly Object> FluentIterable<E> of() {
     return FluentIterable.from(Collections.<E>emptyList());
   }
 
@@ -329,7 +332,7 @@ public Iterator<? extends T> get(int i) {
    * @since 20.0
    */
   @Beta
-  public static <E extends @Nullable Object> FluentIterable<E> of(
+  public static <E extends @Nullable @Readonly Object> FluentIterable<E> of(
       @ParametricNullness E element, E... elements) {
     return from(Lists.asList(element, elements));
   }
@@ -361,7 +364,7 @@ public final int size() {
    *
    * <p><b>{@code Stream} equivalent:</b> {@code stream.anyMatch(Predicate.isEqual(target))}.
    */
-  public final boolean contains(@CheckForNull Object target) {
+  public final boolean contains(@CheckForNull @Readonly Object target) {
     return Iterables.contains(getDelegate(), target);
   }
 
@@ -486,7 +489,7 @@ public final Optional<E> firstMatch(Predicate<? super E> predicate) {
    *
    * <p><b>{@code Stream} equivalent:</b> {@link Stream#map}.
    */
-  public final <T extends @Nullable Object> FluentIterable<T> transform(
+  public final <T extends @Nullable @Readonly Object> FluentIterable<T> transform(
       Function<? super E, T> function) {
     return from(Iterables.transform(getDelegate(), function));
   }
@@ -504,7 +507,7 @@ public final Optional<E> firstMatch(Predicate<? super E> predicate) {
    *
    * @since 13.0 (required {@code Function<E, Iterable<T>>} until 14.0)
    */
-  public <T extends @Nullable Object> FluentIterable<T> transformAndConcat(
+  public <T extends @Nullable @Readonly Object> FluentIterable<T> transformAndConcat(
       Function<? super E, ? extends Iterable<? extends T>> function) {
     return FluentIterable.concat(transform(function));
   }
@@ -712,7 +715,8 @@ public final ImmutableMultiset<E> toMultiset() {
    * @since 14.0
    */
   @SuppressWarnings("nullness") // Unsafe, but we can't do much about it now.
-  public final <V> ImmutableMap<E, V> toMap(Function<? super E, V> valueFunction) {
+  @CFComment("Aosen: would it be better if we are using different type parameter such K for map? Why using E from the iterable?")
+  public final <V> ImmutableMap<@Immutable E, V> toMap(Function<? super E, V> valueFunction) {
     return Maps.toMap(getDelegate(), valueFunction);
   }
 
@@ -735,7 +739,7 @@ public final <V> ImmutableMap<E, V> toMap(Function<? super E, V> valueFunction)
    * @since 14.0
    */
   @SuppressWarnings("nullness") // Unsafe, but we can't do much about it now.
-  public final <K> ImmutableListMultimap<K, E> index(Function<? super E, K> keyFunction) {
+  public final <K extends @Immutable Object> ImmutableListMultimap<K, @Immutable E> index(Function<? super E, K> keyFunction) {
     return Multimaps.index(getDelegate(), keyFunction);
   }
 
@@ -770,7 +774,7 @@ public final <K> ImmutableListMultimap<K, E> index(Function<? super E, K> keyFun
    * @since 14.0
    */
   @SuppressWarnings("nullness") // Unsafe, but we can't do much about it now.
-  public final <K> ImmutableMap<K, E> uniqueIndex(Function<? super E, K> keyFunction) {
+  public final <K extends @Immutable Object> ImmutableMap<K, E> uniqueIndex(Function<? super E, K> keyFunction) {
     return Maps.uniqueIndex(getDelegate(), keyFunction);
   }
 
diff --git a/guava/src/com/google/common/collect/ForwardingCollection.java b/guava/src/com/google/common/collect/ForwardingCollection.java
index 80eeb3cab410..4f252f9144cd 100644
--- a/guava/src/com/google/common/collect/ForwardingCollection.java
+++ b/guava/src/com/google/common/collect/ForwardingCollection.java
@@ -25,6 +25,10 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
@@ -52,10 +56,11 @@
  * @author Louis Wasserman
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingCollection<E extends @Nullable Object> extends ForwardingObject
+@ReceiverDependentMutable
+public abstract class ForwardingCollection<E extends @Nullable @Readonly Object> extends ForwardingObject
     implements Collection<E> {
   // TODO(lowasser): identify places where thread safety is actually lost
 
@@ -63,83 +68,83 @@ public abstract class ForwardingCollection<E extends @Nullable Object> extends F
   protected ForwardingCollection() {}
 
   @Override
-  protected abstract Collection<E> delegate();
+  protected abstract @PolyMutable Collection<E> delegate(@PolyMutable ForwardingCollection<E> this);
 
   @Override
-  public Iterator<E> iterator() {
+  public Iterator<E> iterator(@Readonly ForwardingCollection<E> this) {
     return delegate().iterator();
   }
 
   @Pure
   @Override
-  public @NonNegative int size() {
+  public @NonNegative int size(@Readonly ForwardingCollection<E> this) {
     return delegate().size();
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean removeAll(Collection<?> collection) {
+  public boolean removeAll(@Mutable ForwardingCollection<E> this, Collection<?> collection) {
     return delegate().removeAll(collection);
   }
 
   @Pure
   @Override
-  public boolean isEmpty() {
+  public boolean isEmpty(@Readonly ForwardingCollection<E> this) {
     return delegate().isEmpty();
   }
 
   @Pure
   @Override
   @SuppressWarnings("nullness:argument")
-  public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+  public boolean contains(@Readonly ForwardingCollection<E> this, @CheckForNull @UnknownSignedness @Readonly Object object) {
     return delegate().contains(object);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean add(@ParametricNullness E element) {
+  public boolean add(@Mutable ForwardingCollection<E> this, @ParametricNullness E element) {
     return delegate().add(element);
   }
 
   @CanIgnoreReturnValue
   @Override
   @SuppressWarnings("nullness:argument")
-  public boolean remove(@CheckForNull @UnknownSignedness Object object) {
+  public boolean remove(@Mutable ForwardingCollection<E> this, @CheckForNull @UnknownSignedness Object object) {
     return delegate().remove(object);
   }
 
   @Pure
   @Override
-  public boolean containsAll(Collection<?> collection) {
+  public boolean containsAll(@Readonly ForwardingCollection<E> this, @Readonly Collection<?> collection) {
     return delegate().containsAll(collection);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean addAll(Collection<? extends E> collection) {
+  public boolean addAll(@Mutable ForwardingCollection<E> this, @Readonly Collection<? extends E> collection) {
     return delegate().addAll(collection);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean retainAll(Collection<?> collection) {
+  public boolean retainAll(@Mutable ForwardingCollection<E> this, @Readonly Collection<?> collection) {
     return delegate().retainAll(collection);
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable ForwardingCollection<E> this) {
     delegate().clear();
   }
 
   @Override
-  public @PolyNull @PolySigned Object[] toArray(ForwardingCollection<@PolyNull @PolySigned E> this) {
+  public @PolyNull @PolySigned @PolyMutable Object @ReceiverDependentMutable [] toArray(ForwardingCollection<@PolyNull @PolySigned @PolyMutable E> this) {
     return delegate().toArray();
   }
 
   @CanIgnoreReturnValue
   @Override
   @SuppressWarnings("nullness:return")
-  public <T extends @Nullable @UnknownSignedness Object> T[] toArray(@PolyNull T[] array) {
+  public <T extends @Nullable @UnknownSignedness @Readonly Object> T @ReceiverDependentMutable [] toArray(@ReceiverDependentMutable ForwardingCollection<E> this, @PolyNull T @ReceiverDependentMutable[] array) {
     return delegate().toArray(array);
   }
 
@@ -150,7 +155,7 @@ public void clear() {
    *
    * @since 7.0
    */
-  protected boolean standardContains(@CheckForNull Object object) {
+  protected boolean standardContains(@Readonly ForwardingCollection<E> this, @CheckForNull @Readonly Object object) {
     return Iterators.contains(iterator(), object);
   }
 
@@ -161,7 +166,7 @@ protected boolean standardContains(@CheckForNull Object object) {
    *
    * @since 7.0
    */
-  protected boolean standardContainsAll(Collection<?> collection) {
+  protected boolean standardContainsAll(@Readonly ForwardingCollection<E> this, @Readonly Collection<?> collection) {
     return Collections2.containsAllImpl(this, collection);
   }
 
@@ -171,7 +176,7 @@ protected boolean standardContainsAll(Collection<?> collection) {
    *
    * @since 7.0
    */
-  protected boolean standardAddAll(Collection<? extends E> collection) {
+  protected boolean standardAddAll(@Mutable ForwardingCollection<E> this, @Readonly Collection<? extends E> collection) {
     return Iterators.addAll(this, collection.iterator());
   }
 
@@ -182,7 +187,7 @@ protected boolean standardAddAll(Collection<? extends E> collection) {
    *
    * @since 7.0
    */
-  protected boolean standardRemove(@CheckForNull Object object) {
+  protected boolean standardRemove(@Mutable ForwardingCollection<E> this, @CheckForNull @Readonly Object object) {
     Iterator<E> iterator = iterator();
     while (iterator.hasNext()) {
       if (Objects.equal(iterator.next(), object)) {
@@ -200,7 +205,7 @@ protected boolean standardRemove(@CheckForNull Object object) {
    *
    * @since 7.0
    */
-  protected boolean standardRemoveAll(Collection<?> collection) {
+  protected boolean standardRemoveAll(@Mutable ForwardingCollection<E> this, @Readonly Collection<?> collection) {
     return Iterators.removeAll(iterator(), collection);
   }
 
@@ -211,7 +216,7 @@ protected boolean standardRemoveAll(Collection<?> collection) {
    *
    * @since 7.0
    */
-  protected boolean standardRetainAll(Collection<?> collection) {
+  protected boolean standardRetainAll(@Mutable ForwardingCollection<E> this, @Readonly Collection<?> collection) {
     return Iterators.retainAll(iterator(), collection);
   }
 
@@ -222,7 +227,7 @@ protected boolean standardRetainAll(Collection<?> collection) {
    *
    * @since 7.0
    */
-  protected void standardClear() {
+  protected void standardClear(@Mutable ForwardingCollection<E> this) {
     Iterators.clear(iterator());
   }
 
@@ -233,7 +238,7 @@ protected void standardClear() {
    *
    * @since 7.0
    */
-  protected boolean standardIsEmpty() {
+  protected boolean standardIsEmpty(@Readonly ForwardingCollection<E> this) {
     return !iterator().hasNext();
   }
 
@@ -244,7 +249,7 @@ protected boolean standardIsEmpty() {
    *
    * @since 7.0
    */
-  protected String standardToString() {
+  protected String standardToString(@Readonly ForwardingCollection<E> this) {
     return Collections2.toStringImpl(this);
   }
 
@@ -255,8 +260,8 @@ protected String standardToString() {
    *
    * @since 7.0
    */
-  protected @Nullable Object[] standardToArray() {
-    @Nullable Object[] newArray = new @Nullable Object[size()];
+  protected @Nullable @PolyMutable Object @ReceiverDependentMutable [] standardToArray(ForwardingCollection<@PolyMutable E> this) {
+    @Nullable @PolyMutable Object @ReceiverDependentMutable [] newArray = new @Nullable @PolyMutable Object @ReceiverDependentMutable [size()];
     return toArray(newArray);
   }
 
@@ -267,7 +272,7 @@ protected String standardToString() {
    *
    * @since 7.0
    */
-  protected <T extends @Nullable Object> T[] standardToArray(T[] array) {
+  protected <T extends @Nullable @Readonly Object> T[] standardToArray(T @ReceiverDependentMutable [] array) {
     return ObjectArrays.toArrayImpl(this, array);
   }
 }
diff --git a/guava/src/com/google/common/collect/ForwardingConcurrentMap.java b/guava/src/com/google/common/collect/ForwardingConcurrentMap.java
index e3dc0ee2e259..044738034647 100644
--- a/guava/src/com/google/common/collect/ForwardingConcurrentMap.java
+++ b/guava/src/com/google/common/collect/ForwardingConcurrentMap.java
@@ -21,6 +21,9 @@
 import java.util.concurrent.ConcurrentMap;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -42,7 +45,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingConcurrentMap<K, V> extends ForwardingMap<K, V>
+@ReceiverDependentMutable
+public abstract class ForwardingConcurrentMap<K extends @Immutable Object, V> extends ForwardingMap<K, V>
     implements ConcurrentMap<K, V> {
 
   /** Constructor for use by subclasses. */
@@ -62,7 +66,7 @@ public V putIfAbsent(K key, V value) {
   @CanIgnoreReturnValue
   @Override
   @SuppressWarnings("nullness:argument")
-  public boolean remove(@CheckForNull @UnknownSignedness Object key, @CheckForNull @UnknownSignedness Object value) {
+  public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object key, @CheckForNull @UnknownSignedness @Readonly Object value) {
     return delegate().remove(key, value);
   }
 
diff --git a/guava/src/com/google/common/collect/ForwardingDeque.java b/guava/src/com/google/common/collect/ForwardingDeque.java
index 571535cab917..37c76ae2d3a5 100644
--- a/guava/src/com/google/common/collect/ForwardingDeque.java
+++ b/guava/src/com/google/common/collect/ForwardingDeque.java
@@ -22,6 +22,11 @@
 import java.util.Iterator;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A deque which forwards all its method calls to another deque. Subclasses should override one or
@@ -40,117 +45,119 @@
  * @author Kurt Alfred Kluever
  * @since 12.0
  */
+@AnnotatedFor("pico")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingDeque<E extends @Nullable Object> extends ForwardingQueue<E>
+@ReceiverDependentMutable
+public abstract class ForwardingDeque<E extends @Nullable @Readonly Object> extends ForwardingQueue<E>
     implements Deque<E> {
 
   /** Constructor for use by subclasses. */
   protected ForwardingDeque() {}
 
   @Override
-  protected abstract Deque<E> delegate();
+  protected abstract @PolyMutable Deque<E> delegate(@PolyMutable ForwardingDeque<E> this);
 
   @Override
-  public void addFirst(@ParametricNullness E e) {
+  public void addFirst(@Mutable ForwardingDeque<E> this, @ParametricNullness E e) {
     delegate().addFirst(e);
   }
 
   @Override
-  public void addLast(@ParametricNullness E e) {
+  public void addLast(@Mutable ForwardingDeque<E> this, @ParametricNullness E e) {
     delegate().addLast(e);
   }
 
   @Override
-  public Iterator<E> descendingIterator() {
+  public Iterator<E> descendingIterator(@Readonly ForwardingDeque<E> this) {
     return delegate().descendingIterator();
   }
 
   @Override
   @ParametricNullness
-  public E getFirst() {
+  public E getFirst(@Readonly ForwardingDeque<E> this) {
     return delegate().getFirst();
   }
 
   @Override
   @ParametricNullness
-  public E getLast() {
+  public E getLast(@Readonly ForwardingDeque<E> this) {
     return delegate().getLast();
   }
 
   @CanIgnoreReturnValue // TODO(cpovirk): Consider removing this?
   @Override
-  public boolean offerFirst(@ParametricNullness E e) {
+  public boolean offerFirst(@Mutable ForwardingDeque<E> this, @ParametricNullness E e) {
     return delegate().offerFirst(e);
   }
 
   @CanIgnoreReturnValue // TODO(cpovirk): Consider removing this?
   @Override
-  public boolean offerLast(@ParametricNullness E e) {
+  public boolean offerLast(@Mutable ForwardingDeque<E> this, @ParametricNullness E e) {
     return delegate().offerLast(e);
   }
 
   @Override
   @CheckForNull
-  public E peekFirst() {
+  public E peekFirst(@Readonly ForwardingDeque<E> this) {
     return delegate().peekFirst();
   }
 
   @Override
   @CheckForNull
-  public E peekLast() {
+  public E peekLast(@Readonly ForwardingDeque<E> this) {
     return delegate().peekLast();
   }
 
   @CanIgnoreReturnValue // TODO(cpovirk): Consider removing this?
   @Override
   @CheckForNull
-  public E pollFirst() {
+  public E pollFirst(@Mutable ForwardingDeque<E> this) {
     return delegate().pollFirst();
   }
 
   @CanIgnoreReturnValue // TODO(cpovirk): Consider removing this?
   @Override
   @CheckForNull
-  public E pollLast() {
+  public E pollLast(@Mutable ForwardingDeque<E> this) {
     return delegate().pollLast();
   }
 
   @CanIgnoreReturnValue
   @Override
   @ParametricNullness
-  public E pop() {
+  public E pop(@Mutable ForwardingDeque<E> this) {
     return delegate().pop();
   }
 
   @Override
-  public void push(@ParametricNullness E e) {
+  public void push(@Mutable ForwardingDeque<E> this, @ParametricNullness E e) {
     delegate().push(e);
   }
 
   @CanIgnoreReturnValue
   @Override
   @ParametricNullness
-  public E removeFirst() {
+  public E removeFirst(@Mutable ForwardingDeque<E> this) {
     return delegate().removeFirst();
   }
 
   @CanIgnoreReturnValue
   @Override
   @ParametricNullness
-  public E removeLast() {
+  public E removeLast(@Mutable ForwardingDeque<E> this) {
     return delegate().removeLast();
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean removeFirstOccurrence(@CheckForNull Object o) {
+  public boolean removeFirstOccurrence(@Mutable ForwardingDeque<E> this, @CheckForNull @Readonly Object o) {
     return delegate().removeFirstOccurrence(o);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean removeLastOccurrence(@CheckForNull Object o) {
+  public boolean removeLastOccurrence(@Mutable ForwardingDeque<E> this, @CheckForNull @Readonly Object o) {
     return delegate().removeLastOccurrence(o);
   }
 }
diff --git a/guava/src/com/google/common/collect/ForwardingImmutableCollection.java b/guava/src/com/google/common/collect/ForwardingImmutableCollection.java
index 043fe5863593..79fd49ee3161 100644
--- a/guava/src/com/google/common/collect/ForwardingImmutableCollection.java
+++ b/guava/src/com/google/common/collect/ForwardingImmutableCollection.java
@@ -17,6 +17,7 @@
 package com.google.common.collect;
 
 import com.google.common.annotations.GwtCompatible;
+import org.checkerframework.checker.pico.qual.Immutable;
 
 /**
  * Dummy class that makes the GWT serialization policy happy. It isn't used on the server-side.
@@ -25,6 +26,7 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@Immutable
 class ForwardingImmutableCollection {
   private ForwardingImmutableCollection() {}
 }
diff --git a/guava/src/com/google/common/collect/ForwardingImmutableList.java b/guava/src/com/google/common/collect/ForwardingImmutableList.java
index bd5480d589c4..0ba38aa393e8 100644
--- a/guava/src/com/google/common/collect/ForwardingImmutableList.java
+++ b/guava/src/com/google/common/collect/ForwardingImmutableList.java
@@ -17,14 +17,18 @@
 package com.google.common.collect;
 
 import com.google.common.annotations.GwtCompatible;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Unused stub class, unreferenced under Java and manually emulated under GWT.
  *
  * @author Chris Povirk
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@Immutable
 abstract class ForwardingImmutableList<E> {
   private ForwardingImmutableList() {}
 }
diff --git a/guava/src/com/google/common/collect/ForwardingImmutableMap.java b/guava/src/com/google/common/collect/ForwardingImmutableMap.java
index 22cc9ff8711c..70447c86ec91 100644
--- a/guava/src/com/google/common/collect/ForwardingImmutableMap.java
+++ b/guava/src/com/google/common/collect/ForwardingImmutableMap.java
@@ -17,14 +17,18 @@
 package com.google.common.collect;
 
 import com.google.common.annotations.GwtCompatible;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Unused stub class, unreferenced under Java and manually emulated under GWT.
  *
  * @author Chris Povirk
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-abstract class ForwardingImmutableMap<K, V> {
+@Immutable
+abstract class ForwardingImmutableMap<K extends @Immutable Object, V> {
   private ForwardingImmutableMap() {}
 }
diff --git a/guava/src/com/google/common/collect/ForwardingImmutableSet.java b/guava/src/com/google/common/collect/ForwardingImmutableSet.java
index 047d5fd32216..239a057b44e4 100644
--- a/guava/src/com/google/common/collect/ForwardingImmutableSet.java
+++ b/guava/src/com/google/common/collect/ForwardingImmutableSet.java
@@ -17,14 +17,18 @@
 package com.google.common.collect;
 
 import com.google.common.annotations.GwtCompatible;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Unused stub class, unreferenced under Java and manually emulated under GWT.
  *
  * @author Chris Povirk
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@Immutable
 abstract class ForwardingImmutableSet<E> {
   private ForwardingImmutableSet() {}
 }
diff --git a/guava/src/com/google/common/collect/ForwardingIterator.java b/guava/src/com/google/common/collect/ForwardingIterator.java
index ecc7f1b9ac1d..e28fa5dc160c 100644
--- a/guava/src/com/google/common/collect/ForwardingIterator.java
+++ b/guava/src/com/google/common/collect/ForwardingIterator.java
@@ -20,6 +20,8 @@
 import com.google.errorprone.annotations.CanIgnoreReturnValue;
 import java.util.Iterator;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -40,7 +42,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingIterator<T extends @Nullable Object> extends ForwardingObject
+@ReceiverDependentMutable
+public abstract class ForwardingIterator<T extends @Nullable @Readonly Object> extends ForwardingObject
     implements Iterator<T> {
 
   /** Constructor for use by subclasses. */
diff --git a/guava/src/com/google/common/collect/ForwardingList.java b/guava/src/com/google/common/collect/ForwardingList.java
index d20eb3624c2e..a65136033906 100644
--- a/guava/src/com/google/common/collect/ForwardingList.java
+++ b/guava/src/com/google/common/collect/ForwardingList.java
@@ -25,6 +25,10 @@
 import java.util.ListIterator;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -55,10 +59,11 @@
  * @author Louis Wasserman
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingList<E extends @Nullable Object> extends ForwardingCollection<E>
+@ReceiverDependentMutable
+public abstract class ForwardingList<E extends @Nullable @Readonly Object> extends ForwardingCollection<E>
     implements List<E> {
   // TODO(lowasser): identify places where thread safety is actually lost
 
@@ -66,78 +71,78 @@ public abstract class ForwardingList<E extends @Nullable Object> extends Forward
   protected ForwardingList() {}
 
   @Override
-  protected abstract List<E> delegate();
+  protected abstract @PolyMutable List<E> delegate(@PolyMutable ForwardingList<E> this);
 
   @Override
-  public void add(int index, @ParametricNullness E element) {
+  public void add(@Mutable ForwardingList<E> this, int index, @ParametricNullness E element) {
     delegate().add(index, element);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean addAll(int index, Collection<? extends E> elements) {
+  public boolean addAll(@Mutable ForwardingList<E> this, int index, @Readonly Collection<? extends E> elements) {
     return delegate().addAll(index, elements);
   }
 
   @Override
   @ParametricNullness
-  public E get(int index) {
+  public E get(@Readonly ForwardingList<E> this, int index) {
     return delegate().get(index);
   }
 
   @Pure
   @Override
   @SuppressWarnings("nullness:argument")
-  public int indexOf(@CheckForNull @UnknownSignedness Object element) {
+  public int indexOf(@Readonly ForwardingList<E> this, @CheckForNull @UnknownSignedness @Readonly Object element) {
     return delegate().indexOf(element);
   }
 
   @Pure
   @Override
   @SuppressWarnings("nullness:argument")
-  public int lastIndexOf(@CheckForNull @UnknownSignedness Object element) {
+  public int lastIndexOf(@Readonly ForwardingList<E> this, @CheckForNull @UnknownSignedness @Readonly Object element) {
     return delegate().lastIndexOf(element);
   }
 
   @Override
-  public ListIterator<E> listIterator() {
+  public ListIterator<E> listIterator(@Readonly ForwardingList<E> this) {
     return delegate().listIterator();
   }
 
   @Override
-  public ListIterator<E> listIterator(int index) {
+  public ListIterator<E> listIterator(@Readonly ForwardingList<E> this, int index) {
     return delegate().listIterator(index);
   }
 
   @CanIgnoreReturnValue
   @Override
   @ParametricNullness
-  public E remove(int index) {
+  public E remove(@Mutable ForwardingList<E> this, int index) {
     return delegate().remove(index);
   }
 
   @CanIgnoreReturnValue
   @Override
   @ParametricNullness
-  public E set(int index, @ParametricNullness E element) {
+  public E set(@Mutable ForwardingList<E> this, int index, @ParametricNullness E element) {
     return delegate().set(index, element);
   }
 
   @SideEffectFree
   @Override
-  public List<E> subList(int fromIndex, int toIndex) {
+  public @PolyMutable List<E> subList(@PolyMutable ForwardingList<E> this, int fromIndex, int toIndex) {
     return delegate().subList(fromIndex, toIndex);
   }
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull @UnknownSignedness Object object) {
+  public boolean equals(@Readonly ForwardingList<E> this, @CheckForNull @UnknownSignedness @Readonly Object object) {
     return object == this || delegate().equals(object);
   }
 
   @Pure
   @Override
-  public int hashCode(@UnknownSignedness ForwardingList<E> this) {
+  public int hashCode(@UnknownSignedness @Readonly ForwardingList<E> this) {
     return delegate().hashCode();
   }
 
@@ -148,7 +153,7 @@ public int hashCode(@UnknownSignedness ForwardingList<E> this) {
    *
    * @since 7.0
    */
-  protected boolean standardAdd(@ParametricNullness E element) {
+  protected boolean standardAdd(@Mutable ForwardingList<E> this, @ParametricNullness E element) {
     add(size(), element);
     return true;
   }
@@ -160,7 +165,7 @@ protected boolean standardAdd(@ParametricNullness E element) {
    *
    * @since 7.0
    */
-  protected boolean standardAddAll(int index, Iterable<? extends E> elements) {
+  protected boolean standardAddAll(@Mutable ForwardingList<E> this, int index, Iterable<? extends E> elements) {
     return Lists.addAllImpl(this, index, elements);
   }
 
@@ -171,7 +176,7 @@ protected boolean standardAddAll(int index, Iterable<? extends E> elements) {
    *
    * @since 7.0
    */
-  protected int standardIndexOf(@CheckForNull Object element) {
+  protected int standardIndexOf(@Readonly ForwardingList<E> this, @CheckForNull @Readonly Object element) {
     return Lists.indexOfImpl(this, element);
   }
 
@@ -182,7 +187,7 @@ protected int standardIndexOf(@CheckForNull Object element) {
    *
    * @since 7.0
    */
-  protected int standardLastIndexOf(@CheckForNull Object element) {
+  protected int standardLastIndexOf(@Readonly ForwardingList<E> this, @CheckForNull @Readonly Object element) {
     return Lists.lastIndexOfImpl(this, element);
   }
 
@@ -193,7 +198,7 @@ protected int standardLastIndexOf(@CheckForNull Object element) {
    *
    * @since 7.0
    */
-  protected Iterator<E> standardIterator() {
+  protected Iterator<E> standardIterator(@Readonly ForwardingList<E> this) {
     return listIterator();
   }
 
@@ -204,7 +209,7 @@ protected Iterator<E> standardIterator() {
    *
    * @since 7.0
    */
-  protected ListIterator<E> standardListIterator() {
+  protected ListIterator<E> standardListIterator(@Readonly ForwardingList<E> this) {
     return listIterator(0);
   }
 
@@ -217,7 +222,7 @@ protected ListIterator<E> standardListIterator() {
    * @since 7.0
    */
   @Beta
-  protected ListIterator<E> standardListIterator(int start) {
+  protected ListIterator<E> standardListIterator(@Readonly ForwardingList<E> this, int start) {
     return Lists.listIteratorImpl(this, start);
   }
 
@@ -228,7 +233,7 @@ protected ListIterator<E> standardListIterator(int start) {
    * @since 7.0
    */
   @Beta
-  protected List<E> standardSubList(int fromIndex, int toIndex) {
+  protected @PolyMutable List<E> standardSubList(@PolyMutable ForwardingList<E> this, int fromIndex, int toIndex) {
     return Lists.subListImpl(this, fromIndex, toIndex);
   }
 
@@ -240,7 +245,7 @@ protected List<E> standardSubList(int fromIndex, int toIndex) {
    * @since 7.0
    */
   @Beta
-  protected boolean standardEquals(@CheckForNull Object object) {
+  protected boolean standardEquals(@Readonly ForwardingList<E> this, @CheckForNull @Readonly Object object) {
     return Lists.equalsImpl(this, object);
   }
 
@@ -252,7 +257,7 @@ protected boolean standardEquals(@CheckForNull Object object) {
    * @since 7.0
    */
   @Beta
-  protected int standardHashCode() {
+  protected int standardHashCode(@Readonly ForwardingList<E> this) {
     return Lists.hashCodeImpl(this);
   }
 }
diff --git a/guava/src/com/google/common/collect/ForwardingListIterator.java b/guava/src/com/google/common/collect/ForwardingListIterator.java
index 49a312216361..30fdfd5ffed6 100644
--- a/guava/src/com/google/common/collect/ForwardingListIterator.java
+++ b/guava/src/com/google/common/collect/ForwardingListIterator.java
@@ -20,6 +20,9 @@
 import com.google.errorprone.annotations.CanIgnoreReturnValue;
 import java.util.ListIterator;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -40,7 +43,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingListIterator<E extends @Nullable Object>
+@ReceiverDependentMutable
+public abstract class ForwardingListIterator<E extends @Nullable @Readonly Object>
     extends ForwardingIterator<E> implements ListIterator<E> {
 
   /** Constructor for use by subclasses. */
@@ -50,7 +54,7 @@ protected ForwardingListIterator() {}
   protected abstract ListIterator<E> delegate();
 
   @Override
-  public void add(@ParametricNullness E element) {
+  public void add(@Mutable ForwardingListIterator<E> this, @ParametricNullness E element) {
     delegate().add(element);
   }
 
@@ -79,7 +83,7 @@ public int previousIndex() {
   }
 
   @Override
-  public void set(@ParametricNullness E element) {
+  public void set(@Mutable ForwardingListIterator<E> this, @ParametricNullness E element) {
     delegate().set(element);
   }
 }
diff --git a/guava/src/com/google/common/collect/ForwardingListMultimap.java b/guava/src/com/google/common/collect/ForwardingListMultimap.java
index 11779c0bb826..34a28517d5a3 100644
--- a/guava/src/com/google/common/collect/ForwardingListMultimap.java
+++ b/guava/src/com/google/common/collect/ForwardingListMultimap.java
@@ -21,6 +21,8 @@
 import java.util.List;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * A list multimap which forwards all its method calls to another list multimap. Subclasses should
@@ -36,7 +38,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingListMultimap<K extends @Nullable Object, V extends @Nullable Object>
+public abstract class ForwardingListMultimap<K extends @Nullable @Immutable Object, V extends @Nullable Object>
     extends ForwardingMultimap<K, V> implements ListMultimap<K, V> {
 
   /** Constructor for use by subclasses. */
@@ -52,7 +54,7 @@ public List<V> get(@ParametricNullness K key) {
 
   @CanIgnoreReturnValue
   @Override
-  public List<V> removeAll(@CheckForNull Object key) {
+  public List<V> removeAll(@CheckForNull @Readonly Object key) {
     return delegate().removeAll(key);
   }
 
diff --git a/guava/src/com/google/common/collect/ForwardingMap.java b/guava/src/com/google/common/collect/ForwardingMap.java
index 295f31dfd02d..41846863f31d 100644
--- a/guava/src/com/google/common/collect/ForwardingMap.java
+++ b/guava/src/com/google/common/collect/ForwardingMap.java
@@ -28,6 +28,11 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -61,10 +66,11 @@
  * @author Louis Wasserman
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingMap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public abstract class ForwardingMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends ForwardingObject implements Map<K, V> {
   // TODO(lowasser): identify places where thread safety is actually lost
 
@@ -72,18 +78,18 @@ public abstract class ForwardingMap<K extends @Nullable Object, V extends @Nulla
   protected ForwardingMap() {}
 
   @Override
-  protected abstract Map<K, V> delegate();
+  protected abstract @PolyMutable Map<K, V> delegate(@PolyMutable ForwardingMap<K, V> this);
 
   @Pure
   @Override
   @SuppressWarnings("index:overriding.return")
-  public @NonNegative int size() {
+  public @NonNegative int size(@Readonly ForwardingMap<K, V> this) {
     return delegate().size();
   }
 
   @Pure
   @Override
-  public boolean isEmpty() {
+  public boolean isEmpty(@Readonly ForwardingMap<K, V> this) {
     return delegate().isEmpty();
   }
 
@@ -91,75 +97,75 @@ public boolean isEmpty() {
   @Override
   @SuppressWarnings("nullness:argument") // Suppressed due to annotations on remove in Java.Map
   @CheckForNull
-  public V remove(@CheckForNull @UnknownSignedness Object key) {
+  public V remove(@Mutable ForwardingMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     return delegate().remove(key);
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable ForwardingMap<K, V> this) {
     delegate().clear();
   }
 
   @Pure
   @Override
   @SuppressWarnings("nullness:argument") // Suppressed due to annotations on containsKey in Java.Map
-  public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+  public boolean containsKey(@Readonly ForwardingMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     return delegate().containsKey(key);
   }
 
   @Pure
   @Override
   @SuppressWarnings("nullness:argument") // Suppressed due to annotations on containsValue in Java.Map
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@Readonly ForwardingMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
     return delegate().containsValue(value);
   }
 
   @Override
   @SuppressWarnings("nullness:argument") // Suppressed due to annotations on get in Java.Map
   @CheckForNull
-  public V get(@CheckForNull @UnknownSignedness Object key) {
+  public V get(@Readonly ForwardingMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     return delegate().get(key);
   }
 
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V put(@ParametricNullness K key, @ParametricNullness V value) {
+  public V put(@Mutable ForwardingMap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
     return delegate().put(key, value);
   }
 
   @Override
-  public void putAll(Map<? extends K, ? extends V> map) {
+  public void putAll(@Mutable ForwardingMap<K, V> this, @Readonly Map<? extends K, ? extends V> map) {
     delegate().putAll(map);
   }
 
   @SideEffectFree
   @Override
-  public Set<@KeyFor({"this"}) K> keySet() {
+  public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable ForwardingMap<K, V> this) {
     return delegate().keySet();
   }
 
   @SideEffectFree
   @Override
-  public Collection<V> values() {
+  public @PolyMutable Collection<V> values(@PolyMutable ForwardingMap<K, V> this) {
     return delegate().values();
   }
 
   @SideEffectFree
   @Override
-  public Set<Entry<@KeyFor({"this"}) K, V>> entrySet() {
+  public @PolyMutable Set<@PolyMutable Entry<@KeyFor({"this"}) K, V>> entrySet(@PolyMutable ForwardingMap<K, V> this) {
     return delegate().entrySet();
   }
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@Readonly ForwardingMap<K, V> this, @CheckForNull @Readonly Object object) {
     return object == this || delegate().equals(object);
   }
 
   @Pure
   @Override
-  public int hashCode(@UnknownSignedness ForwardingMap<K, V> this) {
+  public int hashCode(@UnknownSignedness @Readonly ForwardingMap<K, V> this) {
     return delegate().hashCode();
   }
 
@@ -170,7 +176,7 @@ public int hashCode(@UnknownSignedness ForwardingMap<K, V> this) {
    *
    * @since 7.0
    */
-  protected void standardPutAll(Map<? extends K, ? extends V> map) {
+  protected void standardPutAll(@Mutable ForwardingMap<K, V> this, @Readonly Map<? extends K, ? extends V> map) {
     Maps.putAllImpl(this, map);
   }
 
@@ -186,7 +192,7 @@ protected void standardPutAll(Map<? extends K, ? extends V> map) {
    */
   @Beta
   @CheckForNull
-  protected V standardRemove(@CheckForNull Object key) {
+  protected V standardRemove(@Mutable ForwardingMap<K, V> this, @CheckForNull @Readonly Object key) {
     Iterator<Entry<K, V>> entryIterator = entrySet().iterator();
     while (entryIterator.hasNext()) {
       Entry<K, V> entry = entryIterator.next();
@@ -206,7 +212,7 @@ protected V standardRemove(@CheckForNull Object key) {
    *
    * @since 7.0
    */
-  protected void standardClear() {
+  protected void standardClear(@Mutable ForwardingMap<K, V> this) {
     Iterators.clear(entrySet().iterator());
   }
 
@@ -220,6 +226,7 @@ protected void standardClear() {
    * @since 10.0
    */
   @Beta
+  @ReceiverDependentMutable
   protected class StandardKeySet extends Maps.KeySet<K, V> {
     /** Constructor for use by subclasses. */
     public StandardKeySet() {
@@ -235,7 +242,7 @@ public StandardKeySet() {
    * @since 7.0
    */
   @Beta
-  protected boolean standardContainsKey(@CheckForNull Object key) {
+  protected boolean standardContainsKey(@Readonly ForwardingMap<K, V> this, @CheckForNull @Readonly Object key) {
     return Maps.containsKeyImpl(this, key);
   }
 
@@ -249,6 +256,7 @@ protected boolean standardContainsKey(@CheckForNull Object key) {
    * @since 10.0
    */
   @Beta
+  @ReceiverDependentMutable
   protected class StandardValues extends Maps.Values<K, V> {
     /** Constructor for use by subclasses. */
     public StandardValues() {
@@ -263,7 +271,7 @@ public StandardValues() {
    *
    * @since 7.0
    */
-  protected boolean standardContainsValue(@CheckForNull Object value) {
+  protected boolean standardContainsValue(@Readonly ForwardingMap<K, V> this, @CheckForNull @Readonly Object value) {
     return Maps.containsValueImpl(this, value);
   }
 
@@ -277,6 +285,7 @@ protected boolean standardContainsValue(@CheckForNull Object value) {
    * @since 10.0
    */
   @Beta
+  @ReceiverDependentMutable
   protected abstract class StandardEntrySet extends Maps.EntrySet<K, V> {
     /** Constructor for use by subclasses. */
     public StandardEntrySet() {}
@@ -294,7 +303,7 @@ Map<K, V> map() {
    *
    * @since 7.0
    */
-  protected boolean standardIsEmpty() {
+  protected boolean standardIsEmpty(@Readonly ForwardingMap<K, V> this) {
     return !entrySet().iterator().hasNext();
   }
 
@@ -305,7 +314,7 @@ protected boolean standardIsEmpty() {
    *
    * @since 7.0
    */
-  protected boolean standardEquals(@CheckForNull Object object) {
+  protected boolean standardEquals(@Readonly ForwardingMap<K, V> this, @CheckForNull @Readonly Object object) {
     return Maps.equalsImpl(this, object);
   }
 
@@ -316,7 +325,7 @@ protected boolean standardEquals(@CheckForNull Object object) {
    *
    * @since 7.0
    */
-  protected int standardHashCode() {
+  protected int standardHashCode(@Readonly ForwardingMap<K, V> this) {
     return Sets.hashCodeImpl(entrySet());
   }
 
@@ -327,7 +336,7 @@ protected int standardHashCode() {
    *
    * @since 7.0
    */
-  protected String standardToString() {
+  protected String standardToString(@Readonly ForwardingMap<K, V> this) {
     return Maps.toStringImpl(this);
   }
 }
diff --git a/guava/src/com/google/common/collect/ForwardingMapEntry.java b/guava/src/com/google/common/collect/ForwardingMapEntry.java
index a8fec1c83229..84e53bb2245c 100644
--- a/guava/src/com/google/common/collect/ForwardingMapEntry.java
+++ b/guava/src/com/google/common/collect/ForwardingMapEntry.java
@@ -24,6 +24,11 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -50,10 +55,11 @@
  * @author Louis Wasserman
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingMapEntry<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public abstract class ForwardingMapEntry<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends ForwardingObject implements Map.Entry<K, V> {
   // TODO(lowasser): identify places where thread safety is actually lost
 
@@ -61,37 +67,37 @@ public abstract class ForwardingMapEntry<K extends @Nullable Object, V extends @
   protected ForwardingMapEntry() {}
 
   @Override
-  protected abstract Entry<K, V> delegate();
+  protected abstract @PolyMutable Entry<K, V> delegate(@PolyMutable ForwardingMapEntry<K, V> this);
 
   @Pure
   @Override
   @ParametricNullness
-  public K getKey() {
+  public K getKey(@Readonly ForwardingMapEntry<K, V> this) {
     return delegate().getKey();
   }
 
   @Pure
   @Override
   @ParametricNullness
-  public V getValue() {
+  public V getValue(@Readonly ForwardingMapEntry<K, V> this) {
     return delegate().getValue();
   }
 
   @Override
   @ParametricNullness
-  public V setValue(@ParametricNullness V value) {
+  public V setValue(@Mutable ForwardingMapEntry<K, V> this, @ParametricNullness V value) {
     return delegate().setValue(value);
   }
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@Readonly ForwardingMapEntry<K, V> this, @CheckForNull @Readonly Object object) {
     return delegate().equals(object);
   }
 
   @Pure
   @Override
-  public int hashCode(@UnknownSignedness ForwardingMapEntry<K, V> this) {
+  public int hashCode(@UnknownSignedness @Readonly ForwardingMapEntry<K, V> this) {
     return delegate().hashCode();
   }
 
@@ -102,7 +108,7 @@ public int hashCode(@UnknownSignedness ForwardingMapEntry<K, V> this) {
    *
    * @since 7.0
    */
-  protected boolean standardEquals(@CheckForNull Object object) {
+  protected boolean standardEquals(@Readonly ForwardingMapEntry<K, V> this, @CheckForNull @Readonly Object object) {
     if (object instanceof Entry) {
       Entry<?, ?> that = (Entry<?, ?>) object;
       return Objects.equal(this.getKey(), that.getKey())
@@ -118,7 +124,7 @@ protected boolean standardEquals(@CheckForNull Object object) {
    *
    * @since 7.0
    */
-  protected int standardHashCode() {
+  protected int standardHashCode(@Readonly ForwardingMapEntry<K, V> this) {
     K k = getKey();
     V v = getValue();
     return ((k == null) ? 0 : k.hashCode()) ^ ((v == null) ? 0 : v.hashCode());
@@ -132,7 +138,7 @@ protected int standardHashCode() {
    * @since 7.0
    */
   @Beta
-  protected String standardToString() {
+  protected String standardToString(@Readonly ForwardingMapEntry<K, V> this) {
     return getKey() + "=" + getValue();
   }
 }
diff --git a/guava/src/com/google/common/collect/ForwardingMultimap.java b/guava/src/com/google/common/collect/ForwardingMultimap.java
index 735ff22e4131..f6a9f43a1402 100644
--- a/guava/src/com/google/common/collect/ForwardingMultimap.java
+++ b/guava/src/com/google/common/collect/ForwardingMultimap.java
@@ -24,6 +24,11 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -41,131 +46,132 @@
  * @author Robert Konigsberg
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public abstract class ForwardingMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends ForwardingObject implements Multimap<K, V> {
 
   /** Constructor for use by subclasses. */
   protected ForwardingMultimap() {}
 
   @Override
-  protected abstract Multimap<K, V> delegate();
+  protected abstract @PolyMutable Multimap<K, V> delegate(@PolyMutable ForwardingMultimap<K, V> this);
 
   @Override
-  public Map<K, Collection<V>> asMap() {
+  public @PolyMutable Map<K, @PolyMutable Collection<V>> asMap(@PolyMutable ForwardingMultimap<K, V> this) {
     return delegate().asMap();
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable ForwardingMultimap<K, V> this) {
     delegate().clear();
   }
 
   @Pure
   @Override
-  public boolean containsEntry(@CheckForNull Object key, @CheckForNull Object value) {
+  public boolean containsEntry(@Readonly ForwardingMultimap<K, V> this, @CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
     return delegate().containsEntry(key, value);
   }
 
   @Pure
   @Override
-  public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+  public boolean containsKey(@Readonly ForwardingMultimap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     return delegate().containsKey(key);
   }
 
   @Pure
   @Override
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@Readonly ForwardingMultimap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
     return delegate().containsValue(value);
   }
 
   @SideEffectFree
   @Override
-  public Collection<Entry<K, V>> entries() {
+  public @PolyMutable Collection<@PolyMutable Entry<K, V>> entries(@PolyMutable ForwardingMultimap<K, V> this) {
     return delegate().entries();
   }
 
   @Override
-  public Collection<V> get(@ParametricNullness K key) {
+  public @PolyMutable Collection<V> get(@PolyMutable ForwardingMultimap<K, V> this, @ParametricNullness K key) {
     return delegate().get(key);
   }
 
   @Pure
   @Override
-  public boolean isEmpty() {
+  public boolean isEmpty(@Readonly ForwardingMultimap<K, V> this) {
     return delegate().isEmpty();
   }
 
   @Override
-  public Multiset<K> keys() {
+  public @PolyMutable Multiset<K> keys(@PolyMutable ForwardingMultimap<K, V> this) {
     return delegate().keys();
   }
 
   @SideEffectFree
   @Override
-  public Set<K> keySet() {
+  public @PolyMutable Set<K> keySet(@PolyMutable ForwardingMultimap<K, V> this) {
     return delegate().keySet();
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
+  public boolean put(@Mutable ForwardingMultimap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
     return delegate().put(key, value);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean putAll(@ParametricNullness K key, Iterable<? extends V> values) {
+  public boolean putAll(@Mutable ForwardingMultimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values) {
     return delegate().putAll(key, values);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean putAll(Multimap<? extends K, ? extends V> multimap) {
+  public boolean putAll(@Mutable ForwardingMultimap<K, V> this, @Readonly Multimap<? extends K, ? extends V> multimap) {
     return delegate().putAll(multimap);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean remove(@CheckForNull Object key, @CheckForNull Object value) {
+  public boolean remove(@Mutable ForwardingMultimap<K, V> this, @CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
     return delegate().remove(key, value);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public Collection<V> removeAll(@CheckForNull Object key) {
+  public @Readonly Collection<V> removeAll(@Mutable ForwardingMultimap<K, V> this, @CheckForNull @Readonly Object key) {
     return delegate().removeAll(key);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public Collection<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+  public @Readonly Collection<V> replaceValues(@Mutable ForwardingMultimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values) {
     return delegate().replaceValues(key, values);
   }
 
   @Pure
   @Override
-  public int size() {
+  public int size(@Readonly ForwardingMultimap<K, V> this) {
     return delegate().size();
   }
 
   @SideEffectFree
   @Override
-  public Collection<V> values() {
+  public @PolyMutable Collection<V> values(@PolyMutable ForwardingMultimap<K, V> this) {
     return delegate().values();
   }
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@Readonly ForwardingMultimap<K, V> this, @CheckForNull @Readonly Object object) {
     return object == this || delegate().equals(object);
   }
 
   @Pure
   @Override
-  public int hashCode(@UnknownSignedness ForwardingMultimap<K, V> this) {
+  public int hashCode(@UnknownSignedness @Readonly ForwardingMultimap<K, V> this) {
     return delegate().hashCode();
   }
 }
diff --git a/guava/src/com/google/common/collect/ForwardingMultiset.java b/guava/src/com/google/common/collect/ForwardingMultiset.java
index 2a3191724ca3..0854f85a5609 100644
--- a/guava/src/com/google/common/collect/ForwardingMultiset.java
+++ b/guava/src/com/google/common/collect/ForwardingMultiset.java
@@ -26,6 +26,9 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -53,68 +56,69 @@
  * @author Louis Wasserman
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingMultiset<E extends @Nullable Object> extends ForwardingCollection<E>
+@ReceiverDependentMutable
+public abstract class ForwardingMultiset<E extends @Nullable @Readonly Object> extends ForwardingCollection<E>
     implements Multiset<E> {
 
   /** Constructor for use by subclasses. */
   protected ForwardingMultiset() {}
 
   @Override
-  protected abstract Multiset<E> delegate();
+  protected abstract @PolyMutable Multiset<E> delegate(@PolyMutable ForwardingMultiset<E> this);
 
   @Override
-  public @NonNegative int count(@CheckForNull @UnknownSignedness Object element) {
+  public @NonNegative int count(@CheckForNull @UnknownSignedness @Readonly Object element) {
     return delegate().count(element);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public int add(@ParametricNullness E element, int occurrences) {
+  public int add(@Mutable ForwardingMultiset<E> this, @ParametricNullness E element, int occurrences) {
     return delegate().add(element, occurrences);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public int remove(@CheckForNull Object element, int occurrences) {
+  public int remove(@Mutable ForwardingMultiset<E> this, @CheckForNull Object element, int occurrences) {
     return delegate().remove(element, occurrences);
   }
 
   @SideEffectFree
   @Override
-  public Set<E> elementSet() {
+  public @PolyMutable Set<E> elementSet(@PolyMutable ForwardingMultiset<E> this) {
     return delegate().elementSet();
   }
 
   @SideEffectFree
   @Override
-  public Set<Entry<E>> entrySet() {
+  public @PolyMutable Set<@PolyMutable Entry<E>> entrySet(@PolyMutable ForwardingMultiset<E> this) {
     return delegate().entrySet();
   }
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull @UnknownSignedness Object object) {
+  public boolean equals(@Readonly ForwardingMultiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object object) {
     return object == this || delegate().equals(object);
   }
 
   @Pure
   @Override
-  public int hashCode(@UnknownSignedness ForwardingMultiset<E> this) {
+  public int hashCode(@UnknownSignedness @Readonly ForwardingMultiset<E> this) {
     return delegate().hashCode();
   }
 
   @CanIgnoreReturnValue
   @Override
-  public int setCount(@ParametricNullness E element, int count) {
+  public int setCount(@Mutable ForwardingMultiset<E> this, @ParametricNullness E element, int count) {
     return delegate().setCount(element, count);
   }
 
   @CanIgnoreReturnValue
   @Override
-  public boolean setCount(@ParametricNullness E element, int oldCount, int newCount) {
+  public boolean setCount(@Mutable ForwardingMultiset<E> this, @ParametricNullness E element, int oldCount, int newCount) {
     return delegate().setCount(element, oldCount, newCount);
   }
 
@@ -125,7 +129,7 @@ public boolean setCount(@ParametricNullness E element, int oldCount, int newCoun
    * @since 7.0
    */
   @Override
-  protected boolean standardContains(@CheckForNull Object object) {
+  protected boolean standardContains(@Readonly ForwardingMultiset<E> this, @CheckForNull @Readonly Object object) {
     return count(object) > 0;
   }
 
@@ -137,7 +141,7 @@ protected boolean standardContains(@CheckForNull Object object) {
    * @since 7.0
    */
   @Override
-  protected void standardClear() {
+  protected void standardClear(@Mutable ForwardingMultiset<E> this) {
     Iterators.clear(entrySet().iterator());
   }
 
@@ -149,7 +153,7 @@ protected void standardClear() {
    * @since 7.0
    */
   @Beta
-  protected int standardCount(@CheckForNull Object object) {
+  protected int standardCount(@Readonly ForwardingMultiset<E> this, @CheckForNull @Readonly Object object) {
     for (Entry<?> entry : this.entrySet()) {
       if (Objects.equal(entry.getElement(), object)) {
         return entry.getCount();
@@ -165,7 +169,7 @@ protected int standardCount(@CheckForNull Object object) {
    *
    * @since 7.0
    */
-  protected boolean standardAdd(@ParametricNullness E element) {
+  protected boolean standardAdd(@Mutable ForwardingMultiset<E> this, @ParametricNullness E element) {
     add(element, 1);
     return true;
   }
@@ -179,7 +183,7 @@ protected boolean standardAdd(@ParametricNullness E element) {
    */
   @Beta
   @Override
-  protected boolean standardAddAll(Collection<? extends E> elementsToAdd) {
+  protected boolean standardAddAll(@Mutable ForwardingMultiset<E> this, @Readonly Collection<? extends E> elementsToAdd) {
     return Multisets.addAllImpl(this, elementsToAdd);
   }
 
@@ -191,7 +195,7 @@ protected boolean standardAddAll(Collection<? extends E> elementsToAdd) {
    * @since 7.0
    */
   @Override
-  protected boolean standardRemove(@CheckForNull Object element) {
+  protected boolean standardRemove(@Mutable ForwardingMultiset<E> this, @CheckForNull @Readonly Object element) {
     return remove(element, 1) > 0;
   }
 
@@ -203,7 +207,7 @@ protected boolean standardRemove(@CheckForNull Object element) {
    * @since 7.0
    */
   @Override
-  protected boolean standardRemoveAll(Collection<?> elementsToRemove) {
+  protected boolean standardRemoveAll(@Mutable ForwardingMultiset<E> this, @Readonly Collection<?> elementsToRemove) {
     return Multisets.removeAllImpl(this, elementsToRemove);
   }
 
@@ -215,7 +219,7 @@ protected boolean standardRemoveAll(Collection<?> elementsToRemove) {
    * @since 7.0
    */
   @Override
-  protected boolean standardRetainAll(Collection<?> elementsToRetain) {
+  protected boolean standardRetainAll(@Mutable ForwardingMultiset<E> this, @Readonly Collection<?> elementsToRetain) {
     return Multisets.retainAllImpl(this, elementsToRetain);
   }
 
@@ -227,7 +231,7 @@ protected boolean standardRetainAll(Collection<?> elementsToRetain) {
    *
    * @since 7.0
    */
-  protected int standardSetCount(@ParametricNullness E element, int count) {
+  protected int standardSetCount(@Mutable ForwardingMultiset<E> this, @ParametricNullness E element, int count) {
     return Multisets.setCountImpl(this, element, count);
   }
 
@@ -238,7 +242,7 @@ protected int standardSetCount(@ParametricNullness E element, int count) {
    *
    * @since 7.0
    */
-  protected boolean standardSetCount(@ParametricNullness E element, int oldCount, int newCount) {
+  protected boolean standardSetCount(@Mutable ForwardingMultiset<E> this, @ParametricNullness E element, int oldCount, int newCount) {
     return Multisets.setCountImpl(this, element, oldCount, newCount);
   }
 
@@ -254,17 +258,18 @@ protected boolean standardSetCount(@ParametricNullness E element, int oldCount,
    * @since 10.0
    */
   @Beta
+  @ReceiverDependentMutable
   protected class StandardElementSet extends Multisets.ElementSet<E> {
     /** Constructor for use by subclasses. */
     public StandardElementSet() {}
 
     @Override
-    Multiset<E> multiset() {
+    Multiset<E> multiset(@PolyMutable ForwardingMultiset<E>.StandardElementSet this) {
       return ForwardingMultiset.this;
     }
 
     @Override
-    public Iterator<E> iterator() {
+    public Iterator<E> iterator(@Readonly StandardElementSet this) {
       return Multisets.elementIterator(multiset().entrySet().iterator());
     }
   }
@@ -276,7 +281,7 @@ public Iterator<E> iterator() {
    *
    * @since 7.0
    */
-  protected Iterator<E> standardIterator() {
+  protected Iterator<E> standardIterator(@Readonly ForwardingMultiset<E> this) {
     return Multisets.iteratorImpl(this);
   }
 
@@ -287,7 +292,7 @@ protected Iterator<E> standardIterator() {
    *
    * @since 7.0
    */
-  protected int standardSize() {
+  protected int standardSize(@Readonly ForwardingMultiset<E> this) {
     return Multisets.linearTimeSizeImpl(this);
   }
 
@@ -298,7 +303,7 @@ protected int standardSize() {
    *
    * @since 7.0
    */
-  protected boolean standardEquals(@CheckForNull Object object) {
+  protected boolean standardEquals(@Readonly ForwardingMultiset<E> this, @CheckForNull @Readonly Object object) {
     return Multisets.equalsImpl(this, object);
   }
 
@@ -309,7 +314,7 @@ protected boolean standardEquals(@CheckForNull Object object) {
    *
    * @since 7.0
    */
-  protected int standardHashCode() {
+  protected int standardHashCode(@Readonly ForwardingMultiset<E> this) {
     return entrySet().hashCode();
   }
 
@@ -321,7 +326,7 @@ protected int standardHashCode() {
    * @since 7.0
    */
   @Override
-  protected String standardToString() {
+  protected String standardToString(@Readonly ForwardingMultiset<E> this) {
     return entrySet().toString();
   }
 }
diff --git a/guava/src/com/google/common/collect/ForwardingNavigableMap.java b/guava/src/com/google/common/collect/ForwardingNavigableMap.java
index f54ac5bf9554..e0839a391d85 100644
--- a/guava/src/com/google/common/collect/ForwardingNavigableMap.java
+++ b/guava/src/com/google/common/collect/ForwardingNavigableMap.java
@@ -29,6 +29,12 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A navigable map which forwards all its method calls to another navigable map. Subclasses should
@@ -56,20 +62,22 @@
  * @author Louis Wasserman
  * @since 12.0
  */
+@AnnotatedFor("pico")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingNavigableMap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public abstract class ForwardingNavigableMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends ForwardingSortedMap<K, V> implements NavigableMap<K, V> {
 
   /** Constructor for use by subclasses. */
   protected ForwardingNavigableMap() {}
 
   @Override
-  protected abstract NavigableMap<K, V> delegate();
+  protected abstract @PolyMutable NavigableMap<K, V> delegate(@PolyMutable ForwardingNavigableMap<K, V> this);
 
   @Override
   @CheckForNull
-  public Entry<K, V> lowerEntry(@ParametricNullness K key) {
+  public Entry<K, V> lowerEntry(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return delegate().lowerEntry(key);
   }
 
@@ -79,13 +87,13 @@ public Entry<K, V> lowerEntry(@ParametricNullness K key) {
    * lowerEntry} to forward to this implementation.
    */
   @CheckForNull
-  protected Entry<K, V> standardLowerEntry(@ParametricNullness K key) {
+  protected Entry<K, V> standardLowerEntry(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return headMap(key, false).lastEntry();
   }
 
   @Override
   @CheckForNull
-  public K lowerKey(@ParametricNullness K key) {
+  public K lowerKey(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return delegate().lowerKey(key);
   }
 
@@ -95,13 +103,13 @@ public K lowerKey(@ParametricNullness K key) {
    * implementation.
    */
   @CheckForNull
-  protected K standardLowerKey(@ParametricNullness K key) {
+  protected K standardLowerKey(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return keyOrNull(lowerEntry(key));
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> floorEntry(@ParametricNullness K key) {
+  public Entry<K, V> floorEntry(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return delegate().floorEntry(key);
   }
 
@@ -111,13 +119,13 @@ public Entry<K, V> floorEntry(@ParametricNullness K key) {
    * floorEntry} to forward to this implementation.
    */
   @CheckForNull
-  protected Entry<K, V> standardFloorEntry(@ParametricNullness K key) {
+  protected Entry<K, V> standardFloorEntry(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return headMap(key, true).lastEntry();
   }
 
   @Override
   @CheckForNull
-  public K floorKey(@ParametricNullness K key) {
+  public K floorKey(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return delegate().floorKey(key);
   }
 
@@ -127,13 +135,13 @@ public K floorKey(@ParametricNullness K key) {
    * implementation.
    */
   @CheckForNull
-  protected K standardFloorKey(@ParametricNullness K key) {
+  protected K standardFloorKey(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return keyOrNull(floorEntry(key));
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> ceilingEntry(@ParametricNullness K key) {
+  public Entry<K, V> ceilingEntry(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return delegate().ceilingEntry(key);
   }
 
@@ -143,13 +151,13 @@ public Entry<K, V> ceilingEntry(@ParametricNullness K key) {
    * ceilingEntry} to forward to this implementation.
    */
   @CheckForNull
-  protected Entry<K, V> standardCeilingEntry(@ParametricNullness K key) {
+  protected Entry<K, V> standardCeilingEntry(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return tailMap(key, true).firstEntry();
   }
 
   @Override
   @CheckForNull
-  public K ceilingKey(@ParametricNullness K key) {
+  public K ceilingKey(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return delegate().ceilingKey(key);
   }
 
@@ -159,13 +167,13 @@ public K ceilingKey(@ParametricNullness K key) {
    * implementation.
    */
   @CheckForNull
-  protected K standardCeilingKey(@ParametricNullness K key) {
+  protected K standardCeilingKey(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return keyOrNull(ceilingEntry(key));
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> higherEntry(@ParametricNullness K key) {
+  public Entry<K, V> higherEntry(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return delegate().higherEntry(key);
   }
 
@@ -175,13 +183,13 @@ public Entry<K, V> higherEntry(@ParametricNullness K key) {
    * higherEntry} to forward to this implementation.
    */
   @CheckForNull
-  protected Entry<K, V> standardHigherEntry(@ParametricNullness K key) {
+  protected Entry<K, V> standardHigherEntry(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return tailMap(key, false).firstEntry();
   }
 
   @Override
   @CheckForNull
-  public K higherKey(@ParametricNullness K key) {
+  public K higherKey(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return delegate().higherKey(key);
   }
 
@@ -191,13 +199,13 @@ public K higherKey(@ParametricNullness K key) {
    * implementation.
    */
   @CheckForNull
-  protected K standardHigherKey(@ParametricNullness K key) {
+  protected K standardHigherKey(@Readonly ForwardingNavigableMap<K, V> this, @ParametricNullness K key) {
     return keyOrNull(higherEntry(key));
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> firstEntry() {
+  public Entry<K, V> firstEntry(@Readonly ForwardingNavigableMap<K, V> this) {
     return delegate().firstEntry();
   }
 
@@ -207,7 +215,7 @@ public Entry<K, V> firstEntry() {
    * forward to this implementation.
    */
   @CheckForNull
-  protected Entry<K, V> standardFirstEntry() {
+  protected Entry<K, V> standardFirstEntry(@Readonly ForwardingNavigableMap<K, V> this) {
     return Iterables.getFirst(entrySet(), null);
   }
 
@@ -216,7 +224,7 @@ protected Entry<K, V> standardFirstEntry() {
    * {@code firstEntry}, you may wish to override {@code firstKey} to forward to this
    * implementation.
    */
-  protected K standardFirstKey() {
+  protected K standardFirstKey(@Readonly ForwardingNavigableMap<K, V> this) {
     Entry<K, V> entry = firstEntry();
     if (entry == null) {
       throw new NoSuchElementException();
@@ -227,7 +235,7 @@ protected K standardFirstKey() {
 
   @Override
   @CheckForNull
-  public Entry<K, V> lastEntry() {
+  public Entry<K, V> lastEntry(@Readonly ForwardingNavigableMap<K, V> this) {
     return delegate().lastEntry();
   }
 
@@ -237,7 +245,7 @@ public Entry<K, V> lastEntry() {
    * override {@code lastEntry} to forward to this implementation.
    */
   @CheckForNull
-  protected Entry<K, V> standardLastEntry() {
+  protected Entry<K, V> standardLastEntry(@Readonly ForwardingNavigableMap<K, V> this) {
     return Iterables.getFirst(descendingMap().entrySet(), null);
   }
 
@@ -245,7 +253,7 @@ protected Entry<K, V> standardLastEntry() {
    * A sensible definition of {@link #lastKey} in terms of {@code lastEntry}. If you override {@code
    * lastEntry}, you may wish to override {@code lastKey} to forward to this implementation.
    */
-  protected K standardLastKey() {
+  protected K standardLastKey(@Readonly ForwardingNavigableMap<K, V> this) {
     Entry<K, V> entry = lastEntry();
     if (entry == null) {
       throw new NoSuchElementException();
@@ -256,7 +264,7 @@ protected K standardLastKey() {
 
   @Override
   @CheckForNull
-  public Entry<K, V> pollFirstEntry() {
+  public Entry<K, V> pollFirstEntry(@Mutable ForwardingNavigableMap<K, V> this) {
     return delegate().pollFirstEntry();
   }
 
@@ -266,13 +274,13 @@ public Entry<K, V> pollFirstEntry() {
    * forward to this implementation.
    */
   @CheckForNull
-  protected Entry<K, V> standardPollFirstEntry() {
+  protected Entry<K, V> standardPollFirstEntry(@Mutable ForwardingNavigableMap<K, V> this) {
     return Iterators.pollNext(entrySet().iterator());
   }
 
   @Override
   @CheckForNull
-  public Entry<K, V> pollLastEntry() {
+  public Entry<K, V> pollLastEntry(@Mutable ForwardingNavigableMap<K, V> this) {
     return delegate().pollLastEntry();
   }
 
@@ -282,12 +290,12 @@ public Entry<K, V> pollLastEntry() {
    * override {@code pollFirstEntry} to forward to this implementation.
    */
   @CheckForNull
-  protected Entry<K, V> standardPollLastEntry() {
+  protected Entry<K, V> standardPollLastEntry(@Mutable ForwardingNavigableMap<K, V> this) {
     return Iterators.pollNext(descendingMap().entrySet().iterator());
   }
 
   @Override
-  public NavigableMap<K, V> descendingMap() {
+  public @PolyMutable NavigableMap<K, V> descendingMap(@PolyMutable ForwardingNavigableMap<K, V> this) {
     return delegate().descendingMap();
   }
 
@@ -303,23 +311,24 @@ public NavigableMap<K, V> descendingMap() {
    * @since 12.0
    */
   @Beta
+  @ReceiverDependentMutable
   protected class StandardDescendingMap extends Maps.DescendingMap<K, V> {
     /** Constructor for use by subclasses. */
     public StandardDescendingMap() {}
 
     @Override
-    NavigableMap<K, V> forward() {
+    @PolyMutable NavigableMap<K, V> forward(@PolyMutable StandardDescendingMap this) {
       return ForwardingNavigableMap.this;
     }
 
     @Override
-    public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
+    public void replaceAll(@Mutable StandardDescendingMap this, BiFunction<? super K, ? super V, ? extends V> function) {
       forward().replaceAll(function);
     }
 
     @Override
-    protected Iterator<Entry<K, V>> entryIterator() {
-      return new Iterator<Entry<K, V>>() {
+    protected Iterator<@PolyMutable Entry<K, V>> entryIterator(@PolyMutable StandardDescendingMap this) {
+      return new Iterator<@PolyMutable Entry<K, V>>() {
         @CheckForNull private Entry<K, V> toRemove = null;
         @CheckForNull private Entry<K, V> nextOrNull = forward().lastEntry();
 
@@ -354,7 +363,7 @@ public void remove() {
   }
 
   @Override
-  public NavigableSet<@KeyFor({"this"}) K> navigableKeySet() {
+  public @PolyMutable NavigableSet<@KeyFor({"this"}) K> navigableKeySet(@PolyMutable ForwardingNavigableMap<K, V> this) {
     return delegate().navigableKeySet();
   }
 
@@ -367,6 +376,7 @@ public void remove() {
    * @since 12.0
    */
   @Beta
+  @ReceiverDependentMutable
   protected class StandardNavigableKeySet extends Maps.NavigableKeySet<K, V> {
     /** Constructor for use by subclasses. */
     public StandardNavigableKeySet() {
@@ -375,7 +385,7 @@ public StandardNavigableKeySet() {
   }
 
   @Override
-  public NavigableSet<@KeyFor({"this"}) K> descendingKeySet() {
+  public @PolyMutable NavigableSet<@KeyFor({"this"}) K> descendingKeySet(@PolyMutable ForwardingNavigableMap<K, V> this) {
     return delegate().descendingKeySet();
   }
 
@@ -387,7 +397,7 @@ public StandardNavigableKeySet() {
    * implementation.
    */
   @Beta
-  protected NavigableSet<K> standardDescendingKeySet() {
+  protected @PolyMutable NavigableSet<K> standardDescendingKeySet(@PolyMutable ForwardingNavigableMap<K, V> this) {
     return descendingMap().navigableKeySet();
   }
 
@@ -397,13 +407,15 @@ protected NavigableSet<K> standardDescendingKeySet() {
    * wish to override {@code subMap} to forward to this implementation.
    */
   @Override
-  protected SortedMap<K, V> standardSubMap(
+  protected @PolyMutable SortedMap<K, V> standardSubMap(
+          @PolyMutable ForwardingNavigableMap<K, V> this,
       @ParametricNullness K fromKey, @ParametricNullness K toKey) {
     return subMap(fromKey, true, toKey, false);
   }
 
   @Override
-  public NavigableMap<K, V> subMap(
+  public @PolyMutable NavigableMap<K, V> subMap(
+          @PolyMutable ForwardingNavigableMap<K, V> this,
       @ParametricNullness K fromKey,
       boolean fromInclusive,
       @ParametricNullness K toKey,
@@ -412,12 +424,12 @@ public NavigableMap<K, V> subMap(
   }
 
   @Override
-  public NavigableMap<K, V> headMap(@ParametricNullness K toKey, boolean inclusive) {
+  public @PolyMutable NavigableMap<K, V> headMap(@PolyMutable ForwardingNavigableMap<K, V> this, @ParametricNullness K toKey, boolean inclusive) {
     return delegate().headMap(toKey, inclusive);
   }
 
   @Override
-  public NavigableMap<K, V> tailMap(@ParametricNullness K fromKey, boolean inclusive) {
+  public @PolyMutable NavigableMap<K, V> tailMap(@PolyMutable ForwardingNavigableMap<K, V> this, @ParametricNullness K fromKey, boolean inclusive) {
     return delegate().tailMap(fromKey, inclusive);
   }
 
@@ -426,7 +438,7 @@ public NavigableMap<K, V> tailMap(@ParametricNullness K fromKey, boolean inclusi
    * boolean)}. If you override {@code headMap(K, boolean)}, you may wish to override {@code
    * headMap} to forward to this implementation.
    */
-  protected SortedMap<K, V> standardHeadMap(@ParametricNullness K toKey) {
+  protected @PolyMutable SortedMap<K, V> standardHeadMap(@PolyMutable ForwardingNavigableMap<K, V> this, @ParametricNullness K toKey) {
     return headMap(toKey, false);
   }
 
@@ -435,7 +447,7 @@ protected SortedMap<K, V> standardHeadMap(@ParametricNullness K toKey) {
    * boolean)}. If you override {@code tailMap(K, boolean)}, you may wish to override {@code
    * tailMap} to forward to this implementation.
    */
-  protected SortedMap<K, V> standardTailMap(@ParametricNullness K fromKey) {
+  protected @PolyMutable SortedMap<K, V> standardTailMap(@PolyMutable ForwardingNavigableMap<K, V> this, @ParametricNullness K fromKey) {
     return tailMap(fromKey, true);
   }
 }
diff --git a/guava/src/com/google/common/collect/ForwardingNavigableSet.java b/guava/src/com/google/common/collect/ForwardingNavigableSet.java
index 6822aa87d4fc..ff6099cad8a3 100644
--- a/guava/src/com/google/common/collect/ForwardingNavigableSet.java
+++ b/guava/src/com/google/common/collect/ForwardingNavigableSet.java
@@ -23,6 +23,8 @@
 import java.util.SortedSet;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * A navigable set which forwards all its method calls to another navigable set. Subclasses should
@@ -52,7 +54,8 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingNavigableSet<E extends @Nullable Object>
+@ReceiverDependentMutable
+public abstract class ForwardingNavigableSet<E extends @Nullable @Readonly Object>
     extends ForwardingSortedSet<E> implements NavigableSet<E> {
 
   /** Constructor for use by subclasses. */
@@ -182,6 +185,7 @@ public NavigableSet<E> descendingSet() {
    * @since 12.0
    */
   @Beta
+  @ReceiverDependentMutable
   protected class StandardDescendingSet extends Sets.DescendingSet<E> {
     /** Constructor for use by subclasses. */
     public StandardDescendingSet() {
diff --git a/guava/src/com/google/common/collect/ForwardingObject.java b/guava/src/com/google/common/collect/ForwardingObject.java
index 6a55a8541134..581e159e3b5a 100644
--- a/guava/src/com/google/common/collect/ForwardingObject.java
+++ b/guava/src/com/google/common/collect/ForwardingObject.java
@@ -18,6 +18,9 @@
 
 import com.google.common.annotations.GwtCompatible;
 import java.io.Serializable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -45,9 +48,10 @@
  * @author Mike Bostock
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@ReceiverDependentMutable
 public abstract class ForwardingObject {
 
   /** Constructor for use by subclasses. */
@@ -59,12 +63,12 @@ protected ForwardingObject() {}
    * such as {@link ForwardingSet#delegate}. Concrete subclasses override this method to supply the
    * instance being decorated.
    */
-  protected abstract Object delegate();
+  protected abstract @PolyMutable Object delegate(@PolyMutable ForwardingObject this);
 
   /** Returns the string representation generated by the delegate's {@code toString} method. */
   @Pure
   @Override
-  public String toString() {
+  public String toString(@Readonly ForwardingObject this) {
     return delegate().toString();
   }
 
diff --git a/guava/src/com/google/common/collect/ForwardingQueue.java b/guava/src/com/google/common/collect/ForwardingQueue.java
index d76581f5f336..ea5e97b1ff42 100644
--- a/guava/src/com/google/common/collect/ForwardingQueue.java
+++ b/guava/src/com/google/common/collect/ForwardingQueue.java
@@ -22,6 +22,8 @@
 import java.util.Queue;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -49,7 +51,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingQueue<E extends @Nullable Object> extends ForwardingCollection<E>
+@ReceiverDependentMutable
+public abstract class ForwardingQueue<E extends @Nullable @Readonly Object> extends ForwardingCollection<E>
     implements Queue<E> {
 
   /** Constructor for use by subclasses. */
diff --git a/guava/src/com/google/common/collect/ForwardingSet.java b/guava/src/com/google/common/collect/ForwardingSet.java
index 16d0e135ff86..564810bc4008 100644
--- a/guava/src/com/google/common/collect/ForwardingSet.java
+++ b/guava/src/com/google/common/collect/ForwardingSet.java
@@ -23,6 +23,9 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -52,7 +55,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingSet<E extends @Nullable Object> extends ForwardingCollection<E>
+@ReceiverDependentMutable
+public abstract class ForwardingSet<E extends @Nullable @Readonly Object> extends ForwardingCollection<E>
     implements Set<E> {
   // TODO(lowasser): identify places where thread safety is actually lost
 
@@ -60,17 +64,18 @@ public abstract class ForwardingSet<E extends @Nullable Object> extends Forwardi
   protected ForwardingSet() {}
 
   @Override
-  protected abstract Set<E> delegate();
+  // TODO(aosen): If I make poly on both, how to avoid rep exposure and type confusion?
+  protected abstract Set<E> delegate(@Readonly ForwardingSet<E> this);
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull @UnknownSignedness Object object) {
+  public boolean equals(@Readonly ForwardingSet<E> this, @CheckForNull @UnknownSignedness @Readonly Object object) {
     return object == this || delegate().equals(object);
   }
 
   @Pure
   @Override
-  public int hashCode(@UnknownSignedness ForwardingSet<E> this) {
+  public int hashCode(@UnknownSignedness @Readonly ForwardingSet<E> this) {
     return delegate().hashCode();
   }
 
@@ -82,7 +87,7 @@ public int hashCode(@UnknownSignedness ForwardingSet<E> this) {
    * @since 7.0 (this version overrides the {@code ForwardingCollection} version as of 12.0)
    */
   @Override
-  protected boolean standardRemoveAll(Collection<?> collection) {
+  protected boolean standardRemoveAll(@Mutable ForwardingSet<E> this, @Readonly Collection<?> collection) {
     return Sets.removeAllImpl(this, checkNotNull(collection)); // for GWT
   }
 
@@ -93,7 +98,7 @@ protected boolean standardRemoveAll(Collection<?> collection) {
    *
    * @since 7.0
    */
-  protected boolean standardEquals(@CheckForNull Object object) {
+  protected boolean standardEquals(@Readonly ForwardingSet<E> this, @CheckForNull @Readonly Object object) {
     return Sets.equalsImpl(this, object);
   }
 
@@ -103,7 +108,7 @@ protected boolean standardEquals(@CheckForNull Object object) {
    *
    * @since 7.0
    */
-  protected int standardHashCode() {
+  protected int standardHashCode(@Readonly ForwardingSet<E> this) {
     return Sets.hashCodeImpl(this);
   }
 }
diff --git a/guava/src/com/google/common/collect/ForwardingSetMultimap.java b/guava/src/com/google/common/collect/ForwardingSetMultimap.java
index 5077c6803cf9..7bd2fe5456d9 100644
--- a/guava/src/com/google/common/collect/ForwardingSetMultimap.java
+++ b/guava/src/com/google/common/collect/ForwardingSetMultimap.java
@@ -22,6 +22,9 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * A set multimap which forwards all its method calls to another set multimap. Subclasses should
@@ -37,7 +40,8 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingSetMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public abstract class ForwardingSetMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends ForwardingMultimap<K, V> implements SetMultimap<K, V> {
 
   @Override
@@ -55,7 +59,7 @@ public Set<V> get(@ParametricNullness K key) {
 
   @CanIgnoreReturnValue
   @Override
-  public Set<V> removeAll(@CheckForNull Object key) {
+  public Set<V> removeAll(@CheckForNull @Readonly Object key) {
     return delegate().removeAll(key);
   }
 
diff --git a/guava/src/com/google/common/collect/ForwardingSortedMap.java b/guava/src/com/google/common/collect/ForwardingSortedMap.java
index 2d1b3eaa77ac..01b28cf8dff7 100644
--- a/guava/src/com/google/common/collect/ForwardingSortedMap.java
+++ b/guava/src/com/google/common/collect/ForwardingSortedMap.java
@@ -26,6 +26,9 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -54,10 +57,11 @@
  * @author Louis Wasserman
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingSortedMap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public abstract class ForwardingSortedMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends ForwardingMap<K, V> implements SortedMap<K, V> {
   // TODO(lowasser): identify places where thread safety is actually lost
 
@@ -65,39 +69,39 @@ public abstract class ForwardingSortedMap<K extends @Nullable Object, V extends
   protected ForwardingSortedMap() {}
 
   @Override
-  protected abstract SortedMap<K, V> delegate();
+  protected abstract @PolyMutable SortedMap<K, V> delegate(@PolyMutable ForwardingSortedMap<K, V> this);
 
   @SideEffectFree
   @Override
   @CheckForNull
-  public Comparator<? super K> comparator() {
+  public Comparator<? super K> comparator(@Readonly ForwardingSortedMap<K, V> this) {
     return delegate().comparator();
   }
 
   @Override
   @ParametricNullness
-  public @KeyFor("this") K firstKey() {
+  public @KeyFor("this") K firstKey(@Readonly ForwardingSortedMap<K, V> this) {
     return delegate().firstKey();
   }
 
   @Override
-  public SortedMap<K, V> headMap(@ParametricNullness K toKey) {
+  public @PolyMutable SortedMap<K, V> headMap(@PolyMutable ForwardingSortedMap<K, V> this, @ParametricNullness K toKey) {
     return delegate().headMap(toKey);
   }
 
   @Override
   @ParametricNullness
-  public @KeyFor("this") K lastKey() {
+  public @KeyFor("this") K lastKey(@Readonly ForwardingSortedMap<K, V> this) {
     return delegate().lastKey();
   }
 
   @Override
-  public SortedMap<K, V> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
+  public @PolyMutable SortedMap<K, V> subMap(@PolyMutable ForwardingSortedMap<K, V> this, @ParametricNullness K fromKey, @ParametricNullness K toKey) {
     return delegate().subMap(fromKey, toKey);
   }
 
   @Override
-  public SortedMap<K, V> tailMap(@ParametricNullness K fromKey) {
+  public @PolyMutable SortedMap<K, V> tailMap(@PolyMutable ForwardingSortedMap<K, V> this, @ParametricNullness K fromKey) {
     return delegate().tailMap(fromKey);
   }
 
@@ -109,6 +113,7 @@ public SortedMap<K, V> tailMap(@ParametricNullness K fromKey) {
    * @since 15.0
    */
   @Beta
+  @ReceiverDependentMutable
   protected class StandardKeySet extends Maps.SortedKeySet<K, V> {
     /** Constructor for use by subclasses. */
     public StandardKeySet() {
@@ -119,11 +124,11 @@ public StandardKeySet() {
   // unsafe, but worst case is a CCE or NPE is thrown, which callers will be expecting
   @SuppressWarnings({"unchecked", "nullness"})
   static int unsafeCompare(
-      @CheckForNull Comparator<?> comparator, @CheckForNull Object o1, @CheckForNull Object o2) {
+      @CheckForNull Comparator<?> comparator, @CheckForNull @Readonly Object o1, @CheckForNull @Readonly Object o2) {
     if (comparator == null) {
-      return ((Comparable<@Nullable Object>) o1).compareTo(o2);
+      return ((Comparable<@Nullable @Readonly Object>) o1).compareTo(o2);
     } else {
-      return ((Comparator<@Nullable Object>) comparator).compare(o1, o2);
+      return ((Comparator<@Nullable @Readonly Object>) comparator).compare(o1, o2);
     }
   }
 
@@ -136,11 +141,11 @@ static int unsafeCompare(
    */
   @Override
   @Beta
-  protected boolean standardContainsKey(@CheckForNull Object key) {
+  protected boolean standardContainsKey(@Readonly ForwardingSortedMap<K, V> this, @CheckForNull @Readonly Object key) {
     try {
       // any CCE or NPE will be caught
       @SuppressWarnings({"unchecked", "nullness"})
-      SortedMap<@Nullable Object, V> self = (SortedMap<@Nullable Object, V>) this;
+      SortedMap<@Nullable @Immutable Object, V> self = (@Readonly SortedMap<@Nullable @Immutable Object, V>) this;
       Object ceilingKey = self.tailMap(key).firstKey();
       return unsafeCompare(comparator(), ceilingKey, key) == 0;
     } catch (ClassCastException | NoSuchElementException | NullPointerException e) {
@@ -156,7 +161,7 @@ protected boolean standardContainsKey(@CheckForNull Object key) {
    * @since 7.0
    */
   @Beta
-  protected SortedMap<K, V> standardSubMap(K fromKey, K toKey) {
+  protected @PolyMutable SortedMap<K, V> standardSubMap(@PolyMutable ForwardingSortedMap<K, V> this, K fromKey, K toKey) {
     checkArgument(unsafeCompare(comparator(), fromKey, toKey) <= 0, "fromKey must be <= toKey");
     return tailMap(fromKey).headMap(toKey);
   }
diff --git a/guava/src/com/google/common/collect/ForwardingSortedMultiset.java b/guava/src/com/google/common/collect/ForwardingSortedMultiset.java
index 4626d3193a58..91b0a406e5ba 100644
--- a/guava/src/com/google/common/collect/ForwardingSortedMultiset.java
+++ b/guava/src/com/google/common/collect/ForwardingSortedMultiset.java
@@ -21,6 +21,8 @@
 import java.util.NavigableSet;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * A sorted multiset which forwards all its method calls to another sorted multiset. Subclasses
@@ -47,7 +49,8 @@
 @Beta
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingSortedMultiset<E extends @Nullable Object>
+@ReceiverDependentMutable
+public abstract class ForwardingSortedMultiset<E extends @Nullable @Readonly Object>
     extends ForwardingMultiset<E> implements SortedMultiset<E> {
   /** Constructor for use by subclasses. */
   protected ForwardingSortedMultiset() {}
@@ -73,6 +76,7 @@ public NavigableSet<E> elementSet() {
    *
    * @since 15.0
    */
+  @ReceiverDependentMutable
   protected class StandardElementSet extends SortedMultisets.NavigableElementSet<E> {
     /** Constructor for use by subclasses. */
     public StandardElementSet() {
@@ -102,6 +106,7 @@ public SortedMultiset<E> descendingMultiset() {
    *
    * @since 15.0
    */
+  @ReceiverDependentMutable
   protected abstract class StandardDescendingMultiset extends DescendingMultiset<E> {
     /** Constructor for use by subclasses. */
     public StandardDescendingMultiset() {}
diff --git a/guava/src/com/google/common/collect/ForwardingSortedSet.java b/guava/src/com/google/common/collect/ForwardingSortedSet.java
index ede284ebf738..05d3adc140f4 100644
--- a/guava/src/com/google/common/collect/ForwardingSortedSet.java
+++ b/guava/src/com/google/common/collect/ForwardingSortedSet.java
@@ -26,6 +26,10 @@
 import java.util.SortedSet;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -59,51 +63,52 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ForwardingSortedSet<E extends @Nullable Object> extends ForwardingSet<E>
+@ReceiverDependentMutable
+public abstract class ForwardingSortedSet<E extends @Nullable @Readonly Object> extends ForwardingSet<E>
     implements SortedSet<E> {
 
   /** Constructor for use by subclasses. */
   protected ForwardingSortedSet() {}
 
   @Override
-  protected abstract SortedSet<E> delegate();
+  protected abstract @PolyMutable SortedSet<E> delegate(@PolyMutable ForwardingSortedSet<E> this);
 
   @SideEffectFree
   @Override
   @CheckForNull
-  public Comparator<? super E> comparator() {
+  public Comparator<? super E> comparator(@Readonly ForwardingSortedSet<E> this) {
     return delegate().comparator();
   }
 
   @SideEffectFree
   @Override
   @ParametricNullness
-  public E first() {
+  public E first(@Readonly ForwardingSortedSet<E> this) {
     return delegate().first();
   }
 
   @SideEffectFree
   @Override
-  public SortedSet<E> headSet(@ParametricNullness E toElement) {
+  public SortedSet<E> headSet(@Readonly ForwardingSortedSet<E> this, @ParametricNullness E toElement) {
     return delegate().headSet(toElement);
   }
 
   @SideEffectFree
   @Override
   @ParametricNullness
-  public E last() {
+  public E last(@Readonly ForwardingSortedSet<E> this) {
     return delegate().last();
   }
 
   @SideEffectFree
   @Override
-  public SortedSet<E> subSet(@ParametricNullness E fromElement, @ParametricNullness E toElement) {
+  public @PolyMutable SortedSet<E> subSet(@PolyMutable ForwardingSortedSet<E> this, @ParametricNullness E fromElement, @ParametricNullness E toElement) {
     return delegate().subSet(fromElement, toElement);
   }
 
   @SideEffectFree
   @Override
-  public SortedSet<E> tailSet(@ParametricNullness E fromElement) {
+  public @PolyMutable SortedSet<E> tailSet(@PolyMutable ForwardingSortedSet<E> this, @ParametricNullness E fromElement) {
     return delegate().tailSet(fromElement);
   }
 
@@ -116,7 +121,7 @@ public SortedSet<E> tailSet(@ParametricNullness E fromElement) {
    */
   @Override
   @Beta
-  protected boolean standardContains(@CheckForNull Object object) {
+  protected boolean standardContains(@Readonly ForwardingSortedSet<E> this, @CheckForNull @Readonly Object object) {
     try {
       // any ClassCastExceptions and NullPointerExceptions are caught
       @SuppressWarnings({"unchecked", "nullness"})
@@ -137,7 +142,7 @@ protected boolean standardContains(@CheckForNull Object object) {
    */
   @Override
   @Beta
-  protected boolean standardRemove(@CheckForNull Object object) {
+  protected boolean standardRemove(@Mutable ForwardingSortedSet<E> this, @CheckForNull @Readonly Object object) {
     try {
       // any ClassCastExceptions and NullPointerExceptions are caught
       @SuppressWarnings({"unchecked", "nullness"})
@@ -164,7 +169,7 @@ protected boolean standardRemove(@CheckForNull Object object) {
    * @since 7.0
    */
   @Beta
-  protected SortedSet<E> standardSubSet(
+  protected SortedSet<E> standardSubSet(@Readonly ForwardingSortedSet<E> this,
       @ParametricNullness E fromElement, @ParametricNullness E toElement) {
     return tailSet(fromElement).headSet(toElement);
   }
diff --git a/guava/src/com/google/common/collect/ForwardingSortedSetMultimap.java b/guava/src/com/google/common/collect/ForwardingSortedSetMultimap.java
index b91a68b3445a..cb0c77a5681d 100644
--- a/guava/src/com/google/common/collect/ForwardingSortedSetMultimap.java
+++ b/guava/src/com/google/common/collect/ForwardingSortedSetMultimap.java
@@ -21,6 +21,10 @@
 import java.util.SortedSet;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * A sorted set multimap which forwards all its method calls to another sorted set multimap.
@@ -36,8 +40,9 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@ReceiverDependentMutable
 public abstract class ForwardingSortedSetMultimap<
-        K extends @Nullable Object, V extends @Nullable Object>
+        K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends ForwardingSetMultimap<K, V> implements SortedSetMultimap<K, V> {
 
   /** Constructor for use by subclasses. */
@@ -47,17 +52,17 @@ protected ForwardingSortedSetMultimap() {}
   protected abstract SortedSetMultimap<K, V> delegate();
 
   @Override
-  public SortedSet<V> get(@ParametricNullness K key) {
+  public SortedSet<V> get(@Readonly ForwardingSortedSetMultimap<K,V> this, @ParametricNullness K key) {
     return delegate().get(key);
   }
 
   @Override
-  public SortedSet<V> removeAll(@CheckForNull Object key) {
+  public SortedSet<V> removeAll(@Mutable ForwardingSortedSetMultimap<K,V> this, @CheckForNull @Mutable Object key) {
     return delegate().removeAll(key);
   }
 
   @Override
-  public SortedSet<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+  public SortedSet<V> replaceValues(@Mutable ForwardingSortedSetMultimap<K,V> this, @ParametricNullness K key, Iterable<? extends V> values) {
     return delegate().replaceValues(key, values);
   }
 
diff --git a/guava/src/com/google/common/collect/ForwardingTable.java b/guava/src/com/google/common/collect/ForwardingTable.java
index 969118d81f2c..cdb430e2ac22 100644
--- a/guava/src/com/google/common/collect/ForwardingTable.java
+++ b/guava/src/com/google/common/collect/ForwardingTable.java
@@ -23,6 +23,10 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -35,8 +39,9 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@ReceiverDependentMutable
 public abstract class ForwardingTable<
-        R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+        R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends ForwardingObject implements Table<R, C, V> {
   /** Constructor for use by subclasses. */
   protected ForwardingTable() {}
@@ -45,12 +50,12 @@ protected ForwardingTable() {}
   protected abstract Table<R, C, V> delegate();
 
   @Override
-  public Set<Cell<R, C, V>> cellSet() {
+  public @ReceiverDependentMutable Set<Cell<R, C, V>> cellSet() {
     return delegate().cellSet();
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable ForwardingTable<R, C, V> this) {
     delegate().clear();
   }
 
@@ -103,20 +108,20 @@ public boolean isEmpty() {
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V put(
+  public V put(@Mutable ForwardingTable<R, C, V> this,
       @ParametricNullness R rowKey, @ParametricNullness C columnKey, @ParametricNullness V value) {
     return delegate().put(rowKey, columnKey, value);
   }
 
   @Override
-  public void putAll(Table<? extends R, ? extends C, ? extends V> table) {
+  public void putAll(@Mutable ForwardingTable<R, C, V> this, Table<? extends R, ? extends C, ? extends V> table) {
     delegate().putAll(table);
   }
 
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V remove(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+  public V remove(@Mutable ForwardingTable<R, C, V> this, @CheckForNull Object rowKey, @CheckForNull Object columnKey) {
     return delegate().remove(rowKey, columnKey);
   }
 
diff --git a/guava/src/com/google/common/collect/GeneralRange.java b/guava/src/com/google/common/collect/GeneralRange.java
index f99fafa0ae15..8521dfc89fbd 100644
--- a/guava/src/com/google/common/collect/GeneralRange.java
+++ b/guava/src/com/google/common/collect/GeneralRange.java
@@ -26,6 +26,7 @@
 import java.util.Comparator;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -39,9 +40,9 @@
  */
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-final class GeneralRange<T extends @Nullable Object> implements Serializable {
+final class GeneralRange<T extends @Nullable @Readonly Object> implements Serializable {
   /** Converts a Range to a GeneralRange. */
-  static <T extends Comparable> GeneralRange<T> from(Range<T> range) {
+  static <T extends @Readonly Comparable> GeneralRange<T> from(Range<T> range) {
     T lowerEndpoint = range.hasLowerBound() ? range.lowerEndpoint() : null;
     BoundType lowerBoundType = range.hasLowerBound() ? range.lowerBoundType() : OPEN;
 
@@ -58,7 +59,7 @@ static <T extends Comparable> GeneralRange<T> from(Range<T> range) {
   }
 
   /** Returns the whole range relative to the specified comparator. */
-  static <T extends @Nullable Object> GeneralRange<T> all(Comparator<? super T> comparator) {
+  static <T extends @Nullable @Readonly Object> GeneralRange<T> all(Comparator<? super T> comparator) {
     return new GeneralRange<>(comparator, false, null, OPEN, false, null, OPEN);
   }
 
@@ -66,7 +67,7 @@ static <T extends Comparable> GeneralRange<T> from(Range<T> range) {
    * Returns everything above the endpoint relative to the specified comparator, with the specified
    * endpoint behavior.
    */
-  static <T extends @Nullable Object> GeneralRange<T> downTo(
+  static <T extends @Nullable @Readonly Object> GeneralRange<T> downTo(
       Comparator<? super T> comparator, @ParametricNullness T endpoint, BoundType boundType) {
     return new GeneralRange<>(comparator, true, endpoint, boundType, false, null, OPEN);
   }
@@ -75,7 +76,7 @@ static <T extends Comparable> GeneralRange<T> from(Range<T> range) {
    * Returns everything below the endpoint relative to the specified comparator, with the specified
    * endpoint behavior.
    */
-  static <T extends @Nullable Object> GeneralRange<T> upTo(
+  static <T extends @Nullable @Readonly Object> GeneralRange<T> upTo(
       Comparator<? super T> comparator, @ParametricNullness T endpoint, BoundType boundType) {
     return new GeneralRange<>(comparator, false, null, OPEN, true, endpoint, boundType);
   }
@@ -84,7 +85,7 @@ static <T extends Comparable> GeneralRange<T> from(Range<T> range) {
    * Returns everything between the endpoints relative to the specified comparator, with the
    * specified endpoint behavior.
    */
-  static <T extends @Nullable Object> GeneralRange<T> range(
+  static <T extends @Nullable @Readonly Object> GeneralRange<T> range(
       Comparator<? super T> comparator,
       @ParametricNullness T lower,
       BoundType lowerType,
@@ -238,7 +239,7 @@ GeneralRange<T> intersect(GeneralRange<T> other) {
   }
 
   @Override
-  public boolean equals(@CheckForNull Object obj) {
+  public boolean equals(@CheckForNull @Readonly Object obj) {
     if (obj instanceof GeneralRange) {
       GeneralRange<?> r = (GeneralRange<?>) obj;
       return comparator.equals(r.comparator)
diff --git a/guava/src/com/google/common/collect/HashBasedTable.java b/guava/src/com/google/common/collect/HashBasedTable.java
index 21882e62d406..ac208c65541d 100644
--- a/guava/src/com/google/common/collect/HashBasedTable.java
+++ b/guava/src/com/google/common/collect/HashBasedTable.java
@@ -24,6 +24,9 @@
 import java.util.LinkedHashMap;
 import java.util.Map;
 
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+
 /**
  * Implementation of {@link Table} using linked hash tables. This guarantees predictable iteration
  * order of the various views.
@@ -48,8 +51,10 @@
  */
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-public class HashBasedTable<R, C, V> extends StandardTable<R, C, V> {
-  private static class Factory<C, V> implements Supplier<Map<C, V>>, Serializable {
+@ReceiverDependentMutable
+public class HashBasedTable<R extends @Immutable Object, C extends @Immutable Object, V> extends StandardTable<R, C, V> {
+  @ReceiverDependentMutable
+  private static class Factory<C extends @Immutable Object, V> implements Supplier<Map<C, V>>, Serializable {
     final int expectedSize;
 
     Factory(int expectedSize) {
@@ -65,7 +70,7 @@ public Map<C, V> get() {
   }
 
   /** Creates an empty {@code HashBasedTable}. */
-  public static <R, C, V> HashBasedTable<R, C, V> create() {
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> HashBasedTable<R, C, V> create() {
     return new HashBasedTable<>(new LinkedHashMap<R, Map<C, V>>(), new Factory<C, V>(0));
   }
 
@@ -77,7 +82,7 @@ public static <R, C, V> HashBasedTable<R, C, V> create() {
    * @throws IllegalArgumentException if {@code expectedRows} or {@code expectedCellsPerRow} is
    *     negative
    */
-  public static <R, C, V> HashBasedTable<R, C, V> create(
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> HashBasedTable<R, C, V> create(
       int expectedRows, int expectedCellsPerRow) {
     checkNonnegative(expectedCellsPerRow, "expectedCellsPerRow");
     Map<R, Map<C, V>> backingMap = Maps.newLinkedHashMapWithExpectedSize(expectedRows);
@@ -91,14 +96,14 @@ public static <R, C, V> HashBasedTable<R, C, V> create(
    * @throws NullPointerException if any of the row keys, column keys, or values in {@code table} is
    *     null
    */
-  public static <R, C, V> HashBasedTable<R, C, V> create(
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> HashBasedTable<R, C, V> create(
       Table<? extends R, ? extends C, ? extends V> table) {
     HashBasedTable<R, C, V> result = create();
     result.putAll(table);
     return result;
   }
 
-  HashBasedTable(Map<R, Map<C, V>> backingMap, Factory<C, V> factory) {
+  HashBasedTable(@ReceiverDependentMutable Map<R, Map<C, V>> backingMap, @ReceiverDependentMutable Factory<C, V> factory) {
     super(backingMap, factory);
   }
 
diff --git a/guava/src/com/google/common/collect/HashBiMap.java b/guava/src/com/google/common/collect/HashBiMap.java
index fe19cdb936f5..1bb66d1c05ba 100644
--- a/guava/src/com/google/common/collect/HashBiMap.java
+++ b/guava/src/com/google/common/collect/HashBiMap.java
@@ -44,10 +44,17 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * A {@link BiMap} backed by two hash tables. This implementation allows null keys and values. A
@@ -65,11 +72,12 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class HashBiMap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public final class HashBiMap<K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
     extends IteratorBasedAbstractMap<K, V> implements BiMap<K, V>, Serializable {
 
   /** Returns a new, empty {@code HashBiMap} with the default initial capacity (16). */
-  public static <K extends @Nullable Object, V extends @Nullable Object> HashBiMap<K, V> create() {
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object> HashBiMap<K, V> create() {
     return create(16);
   }
 
@@ -79,7 +87,7 @@ public final class HashBiMap<K extends @Nullable Object, V extends @Nullable Obj
    * @param expectedSize the expected number of entries
    * @throws IllegalArgumentException if the specified expected size is negative
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> HashBiMap<K, V> create(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object> HashBiMap<K, V> create(
       int expectedSize) {
     return new HashBiMap<>(expectedSize);
   }
@@ -88,14 +96,15 @@ public final class HashBiMap<K extends @Nullable Object, V extends @Nullable Obj
    * Constructs a new bimap containing initial values from {@code map}. The bimap is created with an
    * initial capacity sufficient to hold the mappings in the specified map.
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> HashBiMap<K, V> create(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object> HashBiMap<K, V> create(
       Map<? extends K, ? extends V> map) {
     HashBiMap<K, V> bimap = create(map.size());
     bimap.putAll(map);
     return bimap;
   }
 
-  private static final class BiEntry<K extends @Nullable Object, V extends @Nullable Object>
+  @Immutable
+  private static final class BiEntry<K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
       extends ImmutableEntry<K, V> {
     final int keyHash;
     final int valueHash;
@@ -126,13 +135,13 @@ private static final class BiEntry<K extends @Nullable Object, V extends @Nullab
    * they are not initialized inline in the constructor, they are initialized from init(), which the
    * constructor calls (as does readObject()).
    */
-  private transient @Nullable BiEntry<K, V>[] hashTableKToV;
-  private transient @Nullable BiEntry<K, V>[] hashTableVToK;
-  @Weak @CheckForNull private transient BiEntry<K, V> firstInKeyInsertionOrder;
-  @Weak @CheckForNull private transient BiEntry<K, V> lastInKeyInsertionOrder;
-  private transient int size;
-  private transient int mask;
-  private transient int modCount;
+  private transient @Assignable @Nullable BiEntry<K, V>[] hashTableKToV;
+  private transient @Assignable @Nullable BiEntry<K, V>[] hashTableVToK;
+  @Weak @CheckForNull private transient @Assignable BiEntry<K, V> firstInKeyInsertionOrder;
+  @Weak @CheckForNull private transient @Assignable BiEntry<K, V> lastInKeyInsertionOrder;
+  private transient @Assignable int size;
+  private transient @Assignable int mask;
+  private transient @Assignable int modCount;
 
   private HashBiMap(int expectedSize) {
     init(expectedSize);
@@ -154,7 +163,7 @@ private void init(int expectedSize) {
    * Finds and removes {@code entry} from the bucket linked lists in both the key-to-value direction
    * and the value-to-key direction.
    */
-  private void delete(BiEntry<K, V> entry) {
+  private void delete(@Mutable HashBiMap<K,V> this, @Readonly BiEntry<K, V> entry) {
     int keyBucket = entry.keyHash & mask;
     BiEntry<K, V> prevBucketEntry = null;
     for (BiEntry<K, V> bucketEntry = hashTableKToV[keyBucket];
@@ -203,7 +212,7 @@ private void delete(BiEntry<K, V> entry) {
     modCount++;
   }
 
-  private void insert(BiEntry<K, V> entry, @CheckForNull BiEntry<K, V> oldEntryForKey) {
+  private void insert(@Mutable HashBiMap<K,V> this, @Readonly BiEntry<K, V> entry, @CheckForNull @Readonly BiEntry<K, V> oldEntryForKey) {
     int keyBucket = entry.keyHash & mask;
     entry.nextInKToVBucket = hashTableKToV[keyBucket];
     hashTableKToV[keyBucket] = entry;
@@ -241,7 +250,7 @@ private void insert(BiEntry<K, V> entry, @CheckForNull BiEntry<K, V> oldEntryFor
   }
 
   @CheckForNull
-  private BiEntry<K, V> seekByKey(@CheckForNull Object key, int keyHash) {
+  private BiEntry<K, V> seekByKey(@CheckForNull @Readonly Object key, int keyHash) {
     for (BiEntry<K, V> entry = hashTableKToV[keyHash & mask];
         entry != null;
         entry = entry.nextInKToVBucket) {
@@ -253,7 +262,7 @@ private BiEntry<K, V> seekByKey(@CheckForNull Object key, int keyHash) {
   }
 
   @CheckForNull
-  private BiEntry<K, V> seekByValue(@CheckForNull Object value, int valueHash) {
+  private BiEntry<K, V> seekByValue(@CheckForNull @Readonly Object value, int valueHash) {
     for (BiEntry<K, V> entry = hashTableVToK[valueHash & mask];
         entry != null;
         entry = entry.nextInVToKBucket) {
@@ -265,7 +274,7 @@ private BiEntry<K, V> seekByValue(@CheckForNull Object value, int valueHash) {
   }
 
   @Override
-  public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+  public boolean containsKey(@Readonly HashBiMap<K,V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     return seekByKey(key, smearedHash(key)) != null;
   }
 
@@ -281,25 +290,25 @@ public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
    */
   @Pure
   @Override
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@Readonly HashBiMap<K,V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
     return seekByValue(value, smearedHash(value)) != null;
   }
 
   @Override
   @CheckForNull
-  public V get(@CheckForNull @UnknownSignedness Object key) {
+  public V get(@Readonly HashBiMap<K,V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     return Maps.valueOrNull(seekByKey(key, smearedHash(key)));
   }
 
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V put(@ParametricNullness K key, @ParametricNullness V value) {
+  public V put(@Mutable HashBiMap<K,V> this, @ParametricNullness K key, @ParametricNullness V value) {
     return put(key, value, false);
   }
 
   @CheckForNull
-  private V put(@ParametricNullness K key, @ParametricNullness V value, boolean force) {
+  private V put(@Mutable HashBiMap<K,V> this, @ParametricNullness K key, @ParametricNullness V value, boolean force) {
     int keyHash = smearedHash(key);
     int valueHash = smearedHash(value);
 
@@ -336,12 +345,12 @@ private V put(@ParametricNullness K key, @ParametricNullness V value, boolean fo
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V forcePut(@ParametricNullness K key, @ParametricNullness V value) {
+  public V forcePut(@Mutable HashBiMap<K,V> this, @ParametricNullness K key, @ParametricNullness V value) {
     return put(key, value, true);
   }
 
   @CheckForNull
-  private K putInverse(@ParametricNullness V value, @ParametricNullness K key, boolean force) {
+  private K putInverse(@Mutable HashBiMap<K,V> this, @ParametricNullness V value, @ParametricNullness K key, boolean force) {
     int valueHash = smearedHash(value);
     int keyHash = smearedHash(key);
 
@@ -412,7 +421,7 @@ private void rehashIfNecessary() {
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V remove(@CheckForNull @UnknownSignedness Object key) {
+  public V remove(@Mutable HashBiMap<K,V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     BiEntry<K, V> entry = seekByKey(key, smearedHash(key));
     if (entry == null) {
       return null;
@@ -425,7 +434,7 @@ public V remove(@CheckForNull @UnknownSignedness Object key) {
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable HashBiMap<K,V> this) {
     size = 0;
     Arrays.fill(hashTableKToV, null);
     Arrays.fill(hashTableVToK, null);
@@ -435,11 +444,12 @@ public void clear() {
   }
 
   @Override
-  public @NonNegative int size() {
+  public @NonNegative int size(@Readonly HashBiMap<K,V> this) {
     return size;
   }
 
-  abstract class Itr<T extends @Nullable Object> implements Iterator<T> {
+  @ReceiverDependentMutable
+  abstract class Itr<T extends @Nullable @Readonly Object> implements Iterator<T> {
     @CheckForNull BiEntry<K, V> next = firstInKeyInsertionOrder;
     @CheckForNull BiEntry<K, V> toRemove = null;
     int expectedModCount = modCount;
@@ -468,7 +478,7 @@ public T next() {
     }
 
     @Override
-    public void remove() {
+    public void remove(@Mutable Itr<T> this) {
       if (modCount != expectedModCount) {
         throw new ConcurrentModificationException();
       }
@@ -484,10 +494,11 @@ public void remove() {
   }
 
   @Override
-  public Set<@KeyFor({"this"}) K> keySet() {
-    return new KeySet();
+  public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable HashBiMap<K,V> this) {
+    return new @PolyMutable KeySet();
   }
 
+  @ReceiverDependentMutable
   private final class KeySet extends Maps.KeySet<K, V> {
     KeySet() {
       super(HashBiMap.this);
@@ -505,7 +516,7 @@ K output(BiEntry<K, V> entry) {
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable KeySet this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       BiEntry<K, V> entry = seekByKey(o, smearedHash(o));
       if (entry == null) {
         return false;
@@ -519,7 +530,7 @@ public boolean remove(@CheckForNull @UnknownSignedness Object o) {
   }
 
   @Override
-  public Set<V> values() {
+  public @PolyMutable Set<V> values(@PolyMutable HashBiMap<K,V> this) {
     return inverse().keySet();
   }
 
@@ -595,57 +606,59 @@ public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
     }
   }
 
-  @LazyInit @RetainedWith @CheckForNull private transient BiMap<V, K> inverse;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @RetainedWith @CheckForNull private transient @Assignable BiMap<V, K> inverse;
 
   @Override
-  public BiMap<V, K> inverse() {
+  public @PolyMutable BiMap<V, K> inverse(@PolyMutable HashBiMap<K,V> this) {
     BiMap<V, K> result = inverse;
     return (result == null) ? inverse = new Inverse() : result;
   }
 
+  @ReceiverDependentMutable
   private final class Inverse extends IteratorBasedAbstractMap<V, K>
       implements BiMap<V, K>, Serializable {
-    BiMap<K, V> forward() {
+    @PolyMutable BiMap<K, V> forward(@PolyMutable Inverse this) {
       return HashBiMap.this;
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly Inverse this) {
       return size;
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable Inverse this) {
       forward().clear();
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object value) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object value) {
       return forward().containsValue(value);
     }
 
     @Override
     @CheckForNull
-    public K get(@CheckForNull @UnknownSignedness Object value) {
+    public K get(@CheckForNull @UnknownSignedness @Readonly Object value) {
       return Maps.keyOrNull(seekByValue(value, smearedHash(value)));
     }
 
     @CanIgnoreReturnValue
     @Override
     @CheckForNull
-    public K put(@ParametricNullness V value, @ParametricNullness K key) {
+    public K put(@Mutable Inverse this, @ParametricNullness V value, @ParametricNullness K key) {
       return putInverse(value, key, false);
     }
 
     @Override
     @CheckForNull
-    public K forcePut(@ParametricNullness V value, @ParametricNullness K key) {
+    public K forcePut(@Mutable Inverse this, @ParametricNullness V value, @ParametricNullness K key) {
       return putInverse(value, key, true);
     }
 
     @Override
     @CheckForNull
-    public K remove(@CheckForNull @UnknownSignedness Object value) {
+    public K remove(@Mutable Inverse this, @CheckForNull @UnknownSignedness @Readonly Object value) {
       BiEntry<K, V> entry = seekByValue(value, smearedHash(value));
       if (entry == null) {
         return null;
@@ -658,15 +671,16 @@ public K remove(@CheckForNull @UnknownSignedness Object value) {
     }
 
     @Override
-    public BiMap<K, V> inverse() {
+    public @PolyMutable BiMap<K, V> inverse(@PolyMutable Inverse this) {
       return forward();
     }
 
     @Override
-    public Set<@KeyFor({"this"}) V> keySet() {
-      return new InverseKeySet();
+    public @PolyMutable Set<@KeyFor({"this"}) V> keySet(@PolyMutable Inverse this) {
+      return new @PolyMutable InverseKeySet();
     }
 
+    @ReceiverDependentMutable
     private final class InverseKeySet extends Maps.KeySet<V, K> {
       InverseKeySet() {
         super(Inverse.this);
@@ -755,7 +769,7 @@ public void forEach(BiConsumer<? super V, ? super K> action) {
     }
 
     @Override
-    public void replaceAll(BiFunction<? super V, ? super K, ? extends K> function) {
+    public void replaceAll(@Mutable Inverse this, BiFunction<? super V, ? super K, ? extends K> function) {
       checkNotNull(function);
       BiEntry<K, V> oldFirst = firstInKeyInsertionOrder;
       clear();
@@ -769,8 +783,9 @@ Object writeReplace() {
     }
   }
 
+  @ReceiverDependentMutable
   private static final class InverseSerializedForm<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
       implements Serializable {
     private final HashBiMap<K, V> bimap;
 
diff --git a/guava/src/com/google/common/collect/HashMultimap.java b/guava/src/com/google/common/collect/HashMultimap.java
index 0aac491bf1d3..36fccc0090cf 100644
--- a/guava/src/com/google/common/collect/HashMultimap.java
+++ b/guava/src/com/google/common/collect/HashMultimap.java
@@ -27,8 +27,14 @@
 import java.util.Map;
 import java.util.Set;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * Implementation of {@link Multimap} using hash tables.
@@ -50,10 +56,11 @@
  * @author Jared Levy
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class HashMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public final class HashMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends HashMultimapGwtSerializationDependencies<K, V> {
   private static final int DEFAULT_VALUES_PER_KEY = 2;
 
@@ -65,7 +72,7 @@ public final class HashMultimap<K extends @Nullable Object, V extends @Nullable
    * <p>This method will soon be deprecated in favor of {@code
    * MultimapBuilder.hashKeys().hashSetValues().build()}.
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       HashMultimap<K, V> create() {
     return new HashMultimap<>();
   }
@@ -82,7 +89,7 @@ HashMultimap<K, V> create() {
    * @throws IllegalArgumentException if {@code expectedKeys} or {@code expectedValuesPerKey} is
    *     negative
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> HashMultimap<K, V> create(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> HashMultimap<K, V> create(
       int expectedKeys, int expectedValuesPerKey) {
     return new HashMultimap<>(expectedKeys, expectedValuesPerKey);
   }
@@ -97,9 +104,10 @@ HashMultimap<K, V> create() {
    *
    * @param multimap the multimap whose contents are copied to this multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> HashMultimap<K, V> create(
-      Multimap<? extends K, ? extends V> multimap) {
-    return new HashMultimap<>(multimap);
+  @CFComment("PICO: good example to have poly only for mutable and immutable, like boolean algebra")
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @PolyMutable HashMultimap<K, V> create(
+      @PolyMutable Multimap<? extends K, ? extends V> multimap) {
+    return new @PolyMutable HashMultimap<>(multimap);
   }
 
   private HashMultimap() {
@@ -107,13 +115,14 @@ private HashMultimap() {
   }
 
   private HashMultimap(int expectedKeys, int expectedValuesPerKey) {
-    super(Platform.<K, Collection<V>>newHashMapWithExpectedSize(expectedKeys));
+    super(Platform.<K, @ReceiverDependentMutable Collection<V>>newHashMapWithExpectedSize(expectedKeys));
     Preconditions.checkArgument(expectedValuesPerKey >= 0);
     this.expectedValuesPerKey = expectedValuesPerKey;
   }
 
-  private HashMultimap(Multimap<? extends K, ? extends V> multimap) {
-    super(Platform.<K, Collection<V>>newHashMapWithExpectedSize(multimap.keySet().size()));
+  @SuppressWarnings("pico:method.invocation.invalid") // Putall method
+  private HashMultimap(@ReceiverDependentMutable Multimap<? extends K, ? extends V> multimap) {
+    super(Platform.<K, @ReceiverDependentMutable Collection<V>>newHashMapWithExpectedSize(multimap.keySet().size()));
     putAll(multimap);
   }
 
@@ -125,7 +134,7 @@ private HashMultimap(Multimap<? extends K, ? extends V> multimap) {
    * @return a new {@code HashSet} containing a collection of values for one key
    */
   @Override
-  Set<V> createCollection() {
+  @PolyMutable Set<V> createCollection(@PolyMutable HashMultimap<K, V> this) {
     return Platform.<V>newHashSetWithExpectedSize(expectedValuesPerKey);
   }
 
@@ -154,11 +163,11 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
 
 @Pure
 @Override
-public boolean equals(@Nullable Object arg0) { return super.equals(arg0); }
+public boolean equals(@Readonly HashMultimap<K,V> this, @Nullable @Readonly Object arg0) { return super.equals(arg0); }
 
 @Override
-public Set<V> get(@Nullable K arg0) { return super.get(arg0); }
+public @PolyMutable Set<V> get(@PolyMutable HashMultimap<K,V> this, @Nullable K arg0) { return super.get(arg0); }
 
 @Override
-public Set<V> removeAll(@Nullable Object arg0) { return super.removeAll(arg0); }
+public @Readonly Set<V> removeAll(@Mutable HashMultimap<K,V> this, @Nullable @Readonly Object arg0) { return super.removeAll(arg0); }
 }
diff --git a/guava/src/com/google/common/collect/HashMultimapGwtSerializationDependencies.java b/guava/src/com/google/common/collect/HashMultimapGwtSerializationDependencies.java
index 0922c3839080..730113f54643 100644
--- a/guava/src/com/google/common/collect/HashMultimapGwtSerializationDependencies.java
+++ b/guava/src/com/google/common/collect/HashMultimapGwtSerializationDependencies.java
@@ -17,6 +17,11 @@
 package com.google.common.collect;
 
 import com.google.common.annotations.GwtCompatible;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
+
 import java.util.Collection;
 import java.util.Map;
 
@@ -29,9 +34,11 @@
  *
  * <p>TODO(cpovirk): Consider applying this subclass approach to our other types.
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
-abstract class HashMultimapGwtSerializationDependencies<K, V> extends AbstractSetMultimap<K, V> {
-  HashMultimapGwtSerializationDependencies(Map<K, Collection<V>> map) {
+@ReceiverDependentMutable
+abstract class HashMultimapGwtSerializationDependencies<K extends @Immutable Object , V extends @Readonly Object> extends AbstractSetMultimap<K, V> {
+  HashMultimapGwtSerializationDependencies(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map) {
     super(map);
   }
 }
diff --git a/guava/src/com/google/common/collect/HashMultiset.java b/guava/src/com/google/common/collect/HashMultiset.java
index 20edf8de93eb..70233d9f5ecb 100644
--- a/guava/src/com/google/common/collect/HashMultiset.java
+++ b/guava/src/com/google/common/collect/HashMultiset.java
@@ -24,6 +24,10 @@
 import java.util.HashMap;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -37,10 +41,11 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class HashMultiset<E extends @Nullable Object> extends AbstractMapBasedMultiset<E> {
+@ReceiverDependentMutable
+public final class HashMultiset<E extends @Nullable @Immutable Object> extends AbstractMapBasedMultiset<E> {
 
   /** Creates a new, empty {@code HashMultiset} using the default initial capacity. */
-  public static <E extends @Nullable Object> HashMultiset<E> create() {
+  public static <E extends @Nullable @Immutable Object> HashMultiset<E> create() {
     return new HashMultiset<E>();
   }
 
@@ -51,7 +56,7 @@ public final class HashMultiset<E extends @Nullable Object> extends AbstractMapB
    * @param distinctElements the expected number of distinct elements
    * @throws IllegalArgumentException if {@code distinctElements} is negative
    */
-  public static <E extends @Nullable Object> HashMultiset<E> create(int distinctElements) {
+  public static <E extends @Nullable @Immutable Object> HashMultiset<E> create(int distinctElements) {
     return new HashMultiset<E>(distinctElements);
   }
 
@@ -62,8 +67,8 @@ public final class HashMultiset<E extends @Nullable Object> extends AbstractMapB
    *
    * @param elements the elements that the multiset should contain
    */
-  public static <E extends @Nullable Object> HashMultiset<E> create(
-      Iterable<? extends E> elements) {
+  public static <E extends @Nullable @Immutable Object> HashMultiset<E> create(
+      @Readonly Iterable<? extends E> elements) {
     HashMultiset<E> multiset = create(Multisets.inferDistinctElements(elements));
     Iterables.addAll(multiset, elements);
     return multiset;
@@ -99,11 +104,11 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
   private static final long serialVersionUID = 0;
 
 @Override
-public boolean contains(@Nullable @UnknownSignedness Object arg0) { return super.contains(arg0); }
+public boolean contains(@Readonly HashMultiset<E> this, @Nullable @UnknownSignedness @Readonly Object arg0) { return super.contains(arg0); }
 
 @Override
-public @NonNegative int count(@Nullable @UnknownSignedness Object arg0) { return super.count(arg0); }
+public @NonNegative int count(@Readonly HashMultiset<E> this, @Nullable @UnknownSignedness @Readonly Object arg0) { return super.count(arg0); }
 
 @Override
-public int remove(@Nullable Object arg0, int arg1) { return super.remove(arg0, arg1); }
+public int remove(@Mutable HashMultiset<E> this, @Nullable @Readonly Object arg0, int arg1) { return super.remove(arg0, arg1); }
 }
diff --git a/guava/src/com/google/common/collect/Hashing.java b/guava/src/com/google/common/collect/Hashing.java
index 7421b40ba0b4..8905920cf916 100644
--- a/guava/src/com/google/common/collect/Hashing.java
+++ b/guava/src/com/google/common/collect/Hashing.java
@@ -20,6 +20,7 @@
 import com.google.common.primitives.Ints;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -56,7 +57,7 @@ static int smear(int hashCode) {
     return (int) (C2 * Integer.rotateLeft((int) (hashCode * C1), 15));
   }
 
-  static int smearedHash(@CheckForNull Object o) {
+  static int smearedHash(@CheckForNull @Readonly Object o) {
     return smear((o == null) ? 0 : o.hashCode());
   }
 
diff --git a/guava/src/com/google/common/collect/ImmutableAsList.java b/guava/src/com/google/common/collect/ImmutableAsList.java
index f3dfdecaa372..353a2505c87d 100644
--- a/guava/src/com/google/common/collect/ImmutableAsList.java
+++ b/guava/src/com/google/common/collect/ImmutableAsList.java
@@ -24,7 +24,10 @@
 import javax.annotation.CheckForNull;
 
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * List returned by {@link ImmutableCollection#asList} that delegates {@code contains} checks to the
@@ -33,14 +36,16 @@
  * @author Jared Levy
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial")
 @ElementTypesAreNonnullByDefault
+@Immutable
 abstract class ImmutableAsList<E> extends ImmutableList<E> {
   abstract ImmutableCollection<E> delegateCollection();
 
   @Override
-  public boolean contains(@CheckForNull @UnknownSignedness Object target) {
+  public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object target) {
     // The collection's contains() is at least as fast as ImmutableList's
     // and is often faster.
     return delegateCollection().contains(target);
@@ -70,7 +75,7 @@ static class SerializedForm implements Serializable {
       this.collection = collection;
     }
 
-    Object readResolve() {
+    @Immutable Object readResolve() {
       return collection.asList();
     }
 
diff --git a/guava/src/com/google/common/collect/ImmutableBiMap.java b/guava/src/com/google/common/collect/ImmutableBiMap.java
index 8e6799c15127..b77821d662bb 100644
--- a/guava/src/com/google/common/collect/ImmutableBiMap.java
+++ b/guava/src/com/google/common/collect/ImmutableBiMap.java
@@ -34,6 +34,8 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -48,7 +50,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public abstract class ImmutableBiMap<K, V> extends ImmutableBiMapFauxverideShim<K, V>
+@Immutable
+public abstract class ImmutableBiMap<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableBiMapFauxverideShim<K, V>
     implements BiMap<K, V> {
 
   /**
@@ -63,7 +66,7 @@ public abstract class ImmutableBiMap<K, V> extends ImmutableBiMapFauxverideShim<
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable Object, K extends @Immutable Object, V extends @Immutable Object>
       Collector<T, ?, ImmutableBiMap<K, V>> toImmutableBiMap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -77,12 +80,12 @@ public abstract class ImmutableBiMap<K, V> extends ImmutableBiMapFauxverideShim<
    */
   // Casting to any type is safe because the set will never hold any elements.
   @SuppressWarnings("unchecked")
-  public static <K, V> ImmutableBiMap<K, V> of() {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of() {
     return (ImmutableBiMap<K, V>) RegularImmutableBiMap.EMPTY;
   }
 
   /** Returns an immutable bimap containing a single entry. */
-  public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of(K k1, V v1) {
     return new SingletonImmutableBiMap<>(k1, v1);
   }
 
@@ -91,7 +94,7 @@ public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1) {
    *
    * @throws IllegalArgumentException if duplicate keys or values are added
    */
-  public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2) {
     return RegularImmutableBiMap.fromEntries(entryOf(k1, v1), entryOf(k2, v2));
   }
 
@@ -100,7 +103,7 @@ public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2) {
    *
    * @throws IllegalArgumentException if duplicate keys or values are added
    */
-  public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
     return RegularImmutableBiMap.fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3));
   }
 
@@ -109,7 +112,7 @@ public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3)
    *
    * @throws IllegalArgumentException if duplicate keys or values are added
    */
-  public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
     return RegularImmutableBiMap.fromEntries(
         entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4));
   }
@@ -119,7 +122,7 @@ public static <K, V> ImmutableBiMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3,
    *
    * @throws IllegalArgumentException if duplicate keys or values are added
    */
-  public static <K, V> ImmutableBiMap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5) {
     return RegularImmutableBiMap.fromEntries(
         entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4), entryOf(k5, v5));
@@ -131,7 +134,7 @@ public static <K, V> ImmutableBiMap<K, V> of(
    * @throws IllegalArgumentException if duplicate keys or values are added
    * @since 31.0
    */
-  public static <K, V> ImmutableBiMap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6) {
     return RegularImmutableBiMap.fromEntries(
         entryOf(k1, v1),
@@ -148,7 +151,7 @@ public static <K, V> ImmutableBiMap<K, V> of(
    * @throws IllegalArgumentException if duplicate keys or values are added
    * @since 31.0
    */
-  public static <K, V> ImmutableBiMap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7) {
     return RegularImmutableBiMap.fromEntries(
         entryOf(k1, v1),
@@ -166,7 +169,7 @@ public static <K, V> ImmutableBiMap<K, V> of(
    * @throws IllegalArgumentException if duplicate keys or values are added
    * @since 31.0
    */
-  public static <K, V> ImmutableBiMap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -200,7 +203,7 @@ public static <K, V> ImmutableBiMap<K, V> of(
    * @throws IllegalArgumentException if duplicate keys or values are added
    * @since 31.0
    */
-  public static <K, V> ImmutableBiMap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -236,7 +239,7 @@ public static <K, V> ImmutableBiMap<K, V> of(
    * @throws IllegalArgumentException if duplicate keys or values are added
    * @since 31.0
    */
-  public static <K, V> ImmutableBiMap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -279,7 +282,7 @@ public static <K, V> ImmutableBiMap<K, V> of(
    * @since 31.0
    */
   @SafeVarargs
-  public static <K, V> ImmutableBiMap<K, V> ofEntries(Entry<? extends K, ? extends V>... entries) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> ofEntries(Entry<? extends K, ? extends V>... entries) {
     @SuppressWarnings("unchecked") // we will only ever read these
     Entry<K, V>[] entries2 = (Entry<K, V>[]) entries;
     return RegularImmutableBiMap.fromEntries(entries2);
@@ -289,7 +292,7 @@ public static <K, V> ImmutableBiMap<K, V> ofEntries(Entry<? extends K, ? extends
    * Returns a new builder. The generated builder is equivalent to the builder created by the {@link
    * Builder} constructor.
    */
-  public static <K, V> Builder<K, V> builder() {
+  public static <K extends @Immutable Object, V extends @Immutable Object> Builder<K, V> builder() {
     return new Builder<>();
   }
 
@@ -306,7 +309,7 @@ public static <K, V> Builder<K, V> builder() {
    * @since 23.1
    */
   @Beta
-  public static <K, V> Builder<K, V> builderWithExpectedSize(int expectedSize) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> Builder<K, V> builderWithExpectedSize(int expectedSize) {
     checkNonnegative(expectedSize, "expectedSize");
     return new Builder<>(expectedSize);
   }
@@ -339,7 +342,7 @@ public static <K, V> Builder<K, V> builderWithExpectedSize(int expectedSize) {
    *
    * @since 2.0
    */
-  public static final class Builder<K, V> extends ImmutableMap.Builder<K, V> {
+  public static final @Mutable class Builder<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableMap.Builder<K, V> {
 
     /**
      * Creates a new builder. The returned builder is equivalent to the builder generated by {@link
@@ -536,7 +539,7 @@ ImmutableBiMap<K, V> buildJdkBacked() {
    *     key
    * @throws NullPointerException if any key or value in {@code map} is null
    */
-  public static <K, V> ImmutableBiMap<K, V> copyOf(Map<? extends K, ? extends V> map) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> copyOf(Map<? extends K, ? extends V> map) {
     if (map instanceof ImmutableBiMap) {
       @SuppressWarnings("unchecked") // safe since map is not writable
       ImmutableBiMap<K, V> bimap = (ImmutableBiMap<K, V>) map;
@@ -559,7 +562,7 @@ public static <K, V> ImmutableBiMap<K, V> copyOf(Map<? extends K, ? extends V> m
    * @since 19.0
    */
   @Beta
-  public static <K, V> ImmutableBiMap<K, V> copyOf(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> copyOf(
       Iterable<? extends Entry<? extends K, ? extends V>> entries) {
     @SuppressWarnings("unchecked") // we'll only be using getKey and getValue, which are covariant
     Entry<K, V>[] entryArray = (Entry<K, V>[]) Iterables.toArray(entries, EMPTY_ENTRY_ARRAY);
@@ -626,7 +629,7 @@ public final V forcePut(K key, V value) {
    * <p>Since the bimap is immutable, ImmutableBiMap doesn't require special logic for keeping the
    * bimap and its inverse in sync during serialization, the way AbstractBiMap does.
    */
-  private static class SerializedForm<K, V> extends ImmutableMap.SerializedForm<K, V> {
+  private static class SerializedForm<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableMap.SerializedForm<K, V> {
     SerializedForm(ImmutableBiMap<K, V> bimap) {
       super(bimap);
     }
diff --git a/guava/src/com/google/common/collect/ImmutableBiMapFauxverideShim.java b/guava/src/com/google/common/collect/ImmutableBiMapFauxverideShim.java
index 2f1f25c82982..29449acbd2fe 100644
--- a/guava/src/com/google/common/collect/ImmutableBiMapFauxverideShim.java
+++ b/guava/src/com/google/common/collect/ImmutableBiMapFauxverideShim.java
@@ -22,6 +22,7 @@
 import java.util.function.Function;
 import java.util.stream.Collector;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
 
 /**
  * "Overrides" the {@link ImmutableMap} static methods that lack {@link ImmutableBiMap} equivalents
@@ -32,7 +33,8 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-abstract class ImmutableBiMapFauxverideShim<K, V> extends ImmutableMap<K, V> {
+@Immutable
+abstract class ImmutableBiMapFauxverideShim<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableMap<K, V> {
   /**
    * Not supported. Use {@link ImmutableBiMap#toImmutableBiMap} instead. This method exists only to
    * hide {@link ImmutableMap#toImmutableMap(Function, Function)} from consumers of {@code
@@ -43,7 +45,7 @@ abstract class ImmutableBiMapFauxverideShim<K, V> extends ImmutableMap<K, V> {
    */
   @Deprecated
   @DoNotCall("Use toImmutableBiMap")
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -60,7 +62,7 @@ abstract class ImmutableBiMapFauxverideShim<K, V> extends ImmutableMap<K, V> {
    */
   @Deprecated
   @DoNotCall("Use toImmutableBiMap")
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction,
diff --git a/guava/src/com/google/common/collect/ImmutableClassToInstanceMap.java b/guava/src/com/google/common/collect/ImmutableClassToInstanceMap.java
index 7ca083704284..3514083bcbcb 100644
--- a/guava/src/com/google/common/collect/ImmutableClassToInstanceMap.java
+++ b/guava/src/com/google/common/collect/ImmutableClassToInstanceMap.java
@@ -22,11 +22,14 @@
 import com.google.common.primitives.Primitives;
 import com.google.errorprone.annotations.CanIgnoreReturnValue;
 import com.google.errorprone.annotations.DoNotCall;
-import com.google.errorprone.annotations.Immutable;
+//import com.google.errorprone.annotations.Immutable;
 import java.io.Serializable;
 import java.util.Map;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -36,14 +39,15 @@
  * @author Kevin Bourrillion
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
-@Immutable(containerOf = "B")
+@AnnotatedFor({"nullness", "pico"})
+//@Immutable(containerOf = "B")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@Immutable
 public final class ImmutableClassToInstanceMap<B> extends ForwardingMap<Class<? extends B>, B>
     implements ClassToInstanceMap<B>, Serializable {
 
-  private static final ImmutableClassToInstanceMap<Object> EMPTY =
+  private static final ImmutableClassToInstanceMap<@Readonly Object> EMPTY =
       new ImmutableClassToInstanceMap<>(ImmutableMap.<Class<?>, Object>of());
 
   /**
@@ -63,8 +67,8 @@ public static <B> ImmutableClassToInstanceMap<B> of() {
    *
    * @since 19.0
    */
-  public static <B, T extends B> ImmutableClassToInstanceMap<B> of(Class<T> type, T value) {
-    ImmutableMap<Class<? extends B>, B> map = ImmutableMap.<Class<? extends B>, B>of(type, value);
+  public static <B extends @Immutable Object, T extends B> ImmutableClassToInstanceMap<B> of(@Immutable Class<T> type, T value) {
+    ImmutableMap<@Immutable Class<? extends B>, B> map = ImmutableMap.<@Immutable Class<? extends B>, B>of(type, value);
     return new ImmutableClassToInstanceMap<>(map);
   }
 
@@ -93,7 +97,7 @@ public static <B> Builder<B> builder() {
    *
    * @since 2.0
    */
-  public static final class Builder<B> {
+  public static final @Mutable class Builder<B> {
     private final ImmutableMap.Builder<Class<? extends B>, B> mapBuilder = ImmutableMap.builder();
 
     /**
@@ -171,7 +175,7 @@ private ImmutableClassToInstanceMap(ImmutableMap<Class<? extends B>, B> delegate
   }
 
   @Override
-  protected Map<Class<? extends B>, B> delegate() {
+  protected @Immutable Map<Class<? extends B>, B> delegate() {
     return delegate;
   }
 
@@ -197,7 +201,7 @@ public <T extends B> T putInstance(Class<T> type, T value) {
     throw new UnsupportedOperationException();
   }
 
-  Object readResolve() {
+  @Immutable Object readResolve() {
     return isEmpty() ? of() : this;
   }
 }
diff --git a/guava/src/com/google/common/collect/ImmutableCollection.java b/guava/src/com/google/common/collect/ImmutableCollection.java
index 646d813ab3c4..0682b65bec3a 100644
--- a/guava/src/com/google/common/collect/ImmutableCollection.java
+++ b/guava/src/com/google/common/collect/ImmutableCollection.java
@@ -36,10 +36,14 @@
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * A {@link Collection} whose contents will never change, and which offers a few additional
@@ -173,7 +177,8 @@
 @ElementTypesAreNonnullByDefault
 // TODO(kevinb): I think we should push everything down to "BaseImmutableCollection" or something,
 // just to do everything we can to emphasize the "practically an interface" nature of this class.
-public abstract class ImmutableCollection<E extends @NonNull Object> extends AbstractCollection<E> implements Serializable {
+@Immutable
+public abstract class ImmutableCollection<E extends @NonNull @Readonly Object> extends AbstractCollection<E> implements Serializable {
   /*
    * We expect SIZED (and SUBSIZED, if applicable) to be added by the spliterator factory methods.
    * These are properties of the collection as a whole; SIZED and SUBSIZED are more properties of
@@ -192,11 +197,11 @@ public abstract class ImmutableCollection<E extends @NonNull Object> extends Abs
   public Spliterator<E> spliterator() {
     return Spliterators.spliterator(this, SPLITERATOR_CHARACTERISTICS);
   }
-
-  private static final Object[] EMPTY_ARRAY = {};
+  @CFComment("Not sure how to annotate {} directly")
+  private static final Object @Mutable [] EMPTY_ARRAY = new Object @Mutable [0];
 
   @Override
-  public final @PolyNull @PolySigned Object[] toArray() {
+  public final @PolyNull @PolySigned Object @Mutable [] toArray() {
     return toArray(EMPTY_ARRAY);
   }
 
@@ -215,7 +220,7 @@ public Spliterator<E> spliterator() {
    * nullness perspective. The signature below at least has the virtue of being relatively simple.
    */
   @SuppressWarnings({"nullness:return", "nullness:assignment"})
-  public final <T extends @Nullable @UnknownSignedness Object> T[] toArray(@PolyNull T[] other) {
+  public final <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(@PolyNull T[] other) {
     checkNotNull(other);
     int size = size();
 
@@ -256,7 +261,7 @@ int internalArrayEnd() {
 
   @Pure
   @Override
-  public abstract boolean contains(@CheckForNull @UnknownSignedness Object object);
+  public abstract boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object);
 
   /**
    * Guaranteed to throw an exception and leave the collection unmodified.
@@ -282,7 +287,7 @@ public final boolean add(E e) {
   @Deprecated
   @Override
   @DoNotCall("Always throws UnsupportedOperationException")
-  public final boolean remove(@CheckForNull @UnknownSignedness Object object) {
+  public final boolean remove(@CheckForNull @UnknownSignedness @Readonly Object object) {
     throw new UnsupportedOperationException();
   }
 
@@ -388,7 +393,7 @@ public ImmutableList<E> asList() {
    * offset. Returns {@code offset + size()}.
    */
   @CanIgnoreReturnValue
-  int copyIntoArray(@Nullable Object[] dst, int offset) {
+  int copyIntoArray(@Nullable @Readonly Object @Mutable [] dst, int offset) {
     for (E e : this) {
       dst[offset++] = e;
     }
diff --git a/guava/src/com/google/common/collect/ImmutableEntry.java b/guava/src/com/google/common/collect/ImmutableEntry.java
index 8be1a54b4280..66b6be5fdba8 100644
--- a/guava/src/com/google/common/collect/ImmutableEntry.java
+++ b/guava/src/com/google/common/collect/ImmutableEntry.java
@@ -19,6 +19,8 @@
 import com.google.common.annotations.GwtCompatible;
 import java.io.Serializable;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -26,7 +28,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-class ImmutableEntry<K extends @Nullable Object, V extends @Nullable Object>
+@Immutable
+class ImmutableEntry<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractMapEntry<K, V> implements Serializable {
   @ParametricNullness final K key;
   @ParametricNullness final V value;
diff --git a/guava/src/com/google/common/collect/ImmutableEnumMap.java b/guava/src/com/google/common/collect/ImmutableEnumMap.java
index e7ad26df0ede..8601b6c65593 100644
--- a/guava/src/com/google/common/collect/ImmutableEnumMap.java
+++ b/guava/src/com/google/common/collect/ImmutableEnumMap.java
@@ -26,6 +26,7 @@
 import java.util.function.BiConsumer;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -36,8 +37,9 @@
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // we're overriding default serialization
 @ElementTypesAreNonnullByDefault
-final class ImmutableEnumMap<K extends Enum<K>, V> extends IteratorBasedImmutableMap<K, V> {
-  static <K extends Enum<K>, V> ImmutableMap<K, V> asImmutable(EnumMap<K, V> map) {
+@Immutable
+final class ImmutableEnumMap<K extends Enum<K>, V extends @Immutable Object> extends IteratorBasedImmutableMap<K, V> {
+  static <K extends Enum<K>, V extends @Immutable Object> ImmutableMap<K, V> asImmutable(EnumMap<K, V> map) {
     switch (map.size()) {
       case 0:
         return ImmutableMap.of();
@@ -129,7 +131,7 @@ private static class EnumSerializedForm<K extends Enum<K>, V> implements Seriali
       this.delegate = delegate;
     }
 
-    Object readResolve() {
+    @Immutable Object readResolve() {
       return new ImmutableEnumMap<>(delegate);
     }
 
diff --git a/guava/src/com/google/common/collect/ImmutableEnumSet.java b/guava/src/com/google/common/collect/ImmutableEnumSet.java
index eee1bf09a3dc..6a973bdf5716 100644
--- a/guava/src/com/google/common/collect/ImmutableEnumSet.java
+++ b/guava/src/com/google/common/collect/ImmutableEnumSet.java
@@ -26,6 +26,7 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -39,9 +40,10 @@
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // we're overriding default serialization
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class ImmutableEnumSet<E extends Enum<E>> extends ImmutableSet<E> {
   @SuppressWarnings("rawtypes") // necessary to compile against Java 8
-  static ImmutableSet asImmutable(EnumSet set) {
+  static ImmutableSet asImmutable(@Immutable EnumSet set) {
     switch (set.size()) {
       case 0:
         return ImmutableSet.of();
@@ -62,7 +64,7 @@ static ImmutableSet asImmutable(EnumSet set) {
    */
   private final transient EnumSet<E> delegate;
 
-  private ImmutableEnumSet(EnumSet<E> delegate) {
+  private ImmutableEnumSet(@Immutable EnumSet<E> delegate) {
     this.delegate = delegate;
   }
 
diff --git a/guava/src/com/google/common/collect/ImmutableList.java b/guava/src/com/google/common/collect/ImmutableList.java
index 1da52b5225cd..1c89d0b6cb9f 100644
--- a/guava/src/com/google/common/collect/ImmutableList.java
+++ b/guava/src/com/google/common/collect/ImmutableList.java
@@ -49,6 +49,9 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -65,11 +68,12 @@
  * @author Kevin Bourrillion
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // we're overriding default serialization
 @ElementTypesAreNonnullByDefault
-public abstract class ImmutableList<E> extends ImmutableCollection<E>
+@Immutable
+public abstract class ImmutableList<E extends @Readonly Object> extends ImmutableCollection<E>
     implements List<E>, RandomAccess {
 
   /**
@@ -78,7 +82,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @since 21.0
    */
-  public static <E extends @NonNull Object> Collector<E, ?, ImmutableList<E>> toImmutableList() {
+  public static <E extends @NonNull @Readonly Object> Collector<E, ?, ImmutableList<E>> toImmutableList() {
     return CollectCollectors.toImmutableList();
   }
 
@@ -91,7 +95,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    */
   // Casting to any type is safe because the list will never hold any elements.
   @SuppressWarnings("unchecked")
-  public static <E extends @NonNull Object> ImmutableList<E> of() {
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of() {
     return (ImmutableList<E>) EMPTY;
   }
 
@@ -102,7 +106,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if {@code element} is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(E element) {
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(E element) {
     return new SingletonImmutableList<E>(element);
   }
 
@@ -111,7 +115,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if any element is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(E e1, E e2) {
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(E e1, E e2) {
     return construct(e1, e2);
   }
 
@@ -120,7 +124,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if any element is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(E e1, E e2, E e3) {
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(E e1, E e2, E e3) {
     return construct(e1, e2, e3);
   }
 
@@ -129,7 +133,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if any element is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(E e1, E e2, E e3, E e4) {
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(E e1, E e2, E e3, E e4) {
     return construct(e1, e2, e3, e4);
   }
 
@@ -138,7 +142,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if any element is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(E e1, E e2, E e3, E e4, E e5) {
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(E e1, E e2, E e3, E e4, E e5) {
     return construct(e1, e2, e3, e4, e5);
   }
 
@@ -147,7 +151,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if any element is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(
       E e1, E e2, E e3, E e4, E e5, E e6) {
     return construct(e1, e2, e3, e4, e5, e6);
   }
@@ -157,7 +161,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if any element is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(
       E e1, E e2, E e3, E e4, E e5, E e6, E e7) {
     return construct(e1, e2, e3, e4, e5, e6, e7);
   }
@@ -167,7 +171,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if any element is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(
       E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8) {
     return construct(e1, e2, e3, e4, e5, e6, e7, e8);
   }
@@ -177,7 +181,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if any element is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(
       E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9) {
     return construct(e1, e2, e3, e4, e5, e6, e7, e8, e9);
   }
@@ -187,7 +191,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if any element is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(
       E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9, E e10) {
     return construct(e1, e2, e3, e4, e5, e6, e7, e8, e9, e10);
   }
@@ -197,7 +201,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if any element is null
    */
-  public static <E extends @NonNull Object> ImmutableList<E> of(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(
       E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9, E e10, E e11) {
     return construct(e1, e2, e3, e4, e5, e6, e7, e8, e9, e10, e11);
   }
@@ -214,11 +218,11 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    * @since 3.0 (source-compatible since 2.0)
    */
   @SafeVarargs // For Eclipse. For internal javac we have disabled this pointless type of warning.
-  public static <E extends @NonNull Object> ImmutableList<E> of(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> of(
       E e1, E e2, E e3, E e4, E e5, E e6, E e7, E e8, E e9, E e10, E e11, E e12, E... others) {
     checkArgument(
         others.length <= Integer.MAX_VALUE - 12, "the total number of elements must fit in an int");
-    Object[] array = new Object[12 + others.length];
+    @Readonly Object[] array = new @Readonly Object[12 + others.length];
     array[0] = e1;
     array[1] = e2;
     array[2] = e3;
@@ -242,7 +246,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if {@code elements} contains a null element
    */
-  public static <E extends @NonNull Object> ImmutableList<E> copyOf(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> copyOf(
       Iterable<? extends E> elements) {
     checkNotNull(elements); // TODO(kevinb): is this here only for GWT?
     return (elements instanceof Collection)
@@ -267,7 +271,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if {@code elements} contains a null element
    */
-  public static <E extends @NonNull Object> ImmutableList<E> copyOf(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> copyOf(
       Collection<? extends E> elements) {
     if (elements instanceof ImmutableCollection) {
       @SuppressWarnings("unchecked") // all supported methods are covariant
@@ -282,7 +286,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    *
    * @throws NullPointerException if {@code elements} contains a null element
    */
-  public static <E extends @NonNull Object> ImmutableList<E> copyOf(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> copyOf(
       Iterator<? extends E> elements) {
     // We special-case for 0 or 1 elements, but going further is madness.
     if (!elements.hasNext()) {
@@ -302,7 +306,7 @@ public abstract class ImmutableList<E> extends ImmutableCollection<E>
    * @throws NullPointerException if {@code elements} contains a null element
    * @since 3.0
    */
-  public static <E extends @NonNull Object> ImmutableList<E> copyOf(E[] elements) {
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> copyOf(E @Readonly [] elements) {
     switch (elements.length) {
       case 0:
         return of();
@@ -351,7 +355,7 @@ public static <E extends Comparable<? super E>> ImmutableList<E> sortedCopyOf(
    * @throws NullPointerException if any element in the input is null
    * @since 21.0
    */
-  public static <E extends @NonNull Object> ImmutableList<E> sortedCopyOf(
+  public static <E extends @Readonly @NonNull Object> ImmutableList<E> sortedCopyOf(
       Comparator<? super E> comparator, Iterable<? extends E> elements) {
     checkNotNull(comparator);
     @SuppressWarnings("unchecked") // all supported methods are covariant
@@ -362,7 +366,7 @@ public static <E extends Comparable<? super E>> ImmutableList<E> sortedCopyOf(
   }
 
   /** Views the array as an immutable list. Checks for nulls; does not copy. */
-  private static <E> ImmutableList<E> construct(Object... elements) {
+  private static <E> ImmutableList<E> construct(@Readonly Object @Readonly ... elements) {
     return asImmutableList(checkElementsNotNull(elements));
   }
 
@@ -371,7 +375,7 @@ private static <E> ImmutableList<E> construct(Object... elements) {
    *
    * <p>The array must be internally created.
    */
-  static <E> ImmutableList<E> asImmutableList(Object[] elements) {
+  static <E> ImmutableList<E> asImmutableList(@Readonly Object @Readonly [] elements) {
     return asImmutableList(elements, elements.length);
   }
 
@@ -379,7 +383,7 @@ static <E> ImmutableList<E> asImmutableList(Object[] elements) {
    * Views the array as an immutable list. Copies if the specified range does not cover the complete
    * array. Does not check for nulls.
    */
-  static <E> ImmutableList<E> asImmutableList(@Nullable Object[] elements, int length) {
+  static <E> ImmutableList<E> asImmutableList(@Nullable @Readonly Object @Readonly [] elements, int length) {
     switch (length) {
       case 0:
         return of();
@@ -397,7 +401,7 @@ static <E> ImmutableList<E> asImmutableList(@Nullable Object[] elements, int len
          * `length` array elements.
          */
         @SuppressWarnings("nullness")
-        Object[] elementsWithoutTrailingNulls =
+        @Readonly Object @Readonly [] elementsWithoutTrailingNulls =
             length < elements.length ? Arrays.copyOf(elements, length) : elements;
         return new RegularImmutableList<E>(elementsWithoutTrailingNulls);
     }
@@ -419,7 +423,7 @@ public UnmodifiableListIterator<E> listIterator() {
 
   @Override
   public UnmodifiableListIterator<E> listIterator(int index) {
-    return new AbstractIndexedListIterator<E>(size(), index) {
+    return new @Immutable AbstractIndexedListIterator<E>(size(), index) {
       @Override
       protected E get(int index) {
         return ImmutableList.this.get(index);
@@ -438,18 +442,18 @@ public void forEach(Consumer<? super E> consumer) {
   }
 
   @Override
-  public int indexOf(@CheckForNull @UnknownSignedness Object object) {
+  public int indexOf(@CheckForNull @UnknownSignedness @Readonly Object object) {
     return (object == null) ? -1 : Lists.indexOfImpl(this, object);
   }
 
   @Pure
   @Override
-  public int lastIndexOf(@CheckForNull @UnknownSignedness Object object) {
+  public int lastIndexOf(@CheckForNull @UnknownSignedness @Readonly Object object) {
     return (object == null) ? -1 : Lists.lastIndexOfImpl(this, object);
   }
 
   @Override
-  public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+  public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
     return indexOf(object) >= 0;
   }
 
@@ -483,6 +487,7 @@ ImmutableList<E> subListUnchecked(int fromIndex, int toIndex) {
     return new SubList(fromIndex, toIndex - fromIndex);
   }
 
+  @Immutable
   class SubList extends ImmutableList<E> {
     final transient int offset;
     final transient int length;
@@ -616,7 +621,7 @@ public Spliterator<E> spliterator() {
   }
 
   @Override
-  int copyIntoArray(@Nullable Object[] dst, int offset) {
+  int copyIntoArray(@Nullable @Readonly Object [] dst, int offset) {
     // this loop is faster for RandomAccess instances, which ImmutableLists are
     int size = size();
     for (int i = 0; i < size; i++) {
@@ -636,6 +641,7 @@ public ImmutableList<E> reverse() {
     return (size() <= 1) ? this : new ReverseImmutableList<E>(this);
   }
 
+  @Immutable
   private static class ReverseImmutableList<E> extends ImmutableList<E> {
     private final transient ImmutableList<E> forwardList;
 
@@ -657,18 +663,18 @@ public ImmutableList<E> reverse() {
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+    public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
       return forwardList.contains(object);
     }
 
     @Override
-    public int indexOf(@CheckForNull @UnknownSignedness Object object) {
+    public int indexOf(@CheckForNull @UnknownSignedness @Readonly Object object) {
       int index = forwardList.lastIndexOf(object);
       return (index >= 0) ? reverseIndex(index) : -1;
     }
 
     @Override
-    public int lastIndexOf(@CheckForNull @UnknownSignedness Object object) {
+    public int lastIndexOf(@CheckForNull @UnknownSignedness @Readonly Object object) {
       int index = forwardList.indexOf(object);
       return (index >= 0) ? reverseIndex(index) : -1;
     }
@@ -697,12 +703,12 @@ boolean isPartialView() {
   }
 
   @Override
-  public boolean equals(@CheckForNull @UnknownSignedness Object obj) {
+  public boolean equals(@CheckForNull @UnknownSignedness @Readonly Object obj) {
     return Lists.equalsImpl(this, obj);
   }
 
   @Override
-  public int hashCode(@UnknownSignedness ImmutableList<E> this) {
+  public int hashCode(@UnknownSignedness @Readonly ImmutableList<E> this) {
     int hashCode = 1;
     int n = size();
     for (int i = 0; i < n; i++) {
@@ -719,9 +725,9 @@ public int hashCode(@UnknownSignedness ImmutableList<E> this) {
    * implementation types do not leak into the serialized representation.
    */
   static class SerializedForm implements Serializable {
-    final Object[] elements;
+    final Object @Readonly [] elements;
 
-    SerializedForm(Object[] elements) {
+    SerializedForm(Object @Readonly [] elements) {
       this.elements = elements;
     }
 
@@ -789,7 +795,7 @@ public static <E> Builder<E> builderWithExpectedSize(int expectedSize) {
    */
   public static final class Builder<E> extends ImmutableCollection.Builder<E> {
     // The first `size` elements are non-null.
-    @VisibleForTesting @Nullable Object[] contents;
+    @VisibleForTesting @Nullable @Readonly Object[] contents;
     private int size;
     private boolean forceCopy;
 
diff --git a/guava/src/com/google/common/collect/ImmutableListMultimap.java b/guava/src/com/google/common/collect/ImmutableListMultimap.java
index 8db385eec27f..1155a69def03 100644
--- a/guava/src/com/google/common/collect/ImmutableListMultimap.java
+++ b/guava/src/com/google/common/collect/ImmutableListMultimap.java
@@ -37,6 +37,8 @@
 import java.util.stream.Stream;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -52,7 +54,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public class ImmutableListMultimap<K, V> extends ImmutableMultimap<K, V>
+@Immutable
+public class ImmutableListMultimap<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableMultimap<K, V>
     implements ListMultimap<K, V> {
   /**
    * Returns a {@link Collector} that accumulates elements into an {@code ImmutableListMultimap}
@@ -82,7 +85,7 @@ public class ImmutableListMultimap<K, V> extends ImmutableMultimap<K, V>
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable Object, K extends @Immutable Object, V extends @Immutable Object>
       Collector<T, ?, ImmutableListMultimap<K, V>> toImmutableListMultimap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -120,7 +123,7 @@ public class ImmutableListMultimap<K, V> extends ImmutableMultimap<K, V>
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable Object, K extends @Immutable Object, V extends @Immutable Object>
       Collector<T, ?, ImmutableListMultimap<K, V>> flatteningToImmutableListMultimap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends Stream<? extends V>> valuesFunction) {
@@ -134,19 +137,19 @@ public class ImmutableListMultimap<K, V> extends ImmutableMultimap<K, V>
    */
   // Casting is safe because the multimap will never hold any elements.
   @SuppressWarnings("unchecked")
-  public static <K, V> ImmutableListMultimap<K, V> of() {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableListMultimap<K, V> of() {
     return (ImmutableListMultimap<K, V>) EmptyImmutableListMultimap.INSTANCE;
   }
 
   /** Returns an immutable multimap containing a single entry. */
-  public static <K, V> ImmutableListMultimap<K, V> of(K k1, V v1) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableListMultimap<K, V> of(K k1, V v1) {
     ImmutableListMultimap.Builder<K, V> builder = ImmutableListMultimap.builder();
     builder.put(k1, v1);
     return builder.build();
   }
 
   /** Returns an immutable multimap containing the given entries, in order. */
-  public static <K, V> ImmutableListMultimap<K, V> of(K k1, V v1, K k2, V v2) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableListMultimap<K, V> of(K k1, V v1, K k2, V v2) {
     ImmutableListMultimap.Builder<K, V> builder = ImmutableListMultimap.builder();
     builder.put(k1, v1);
     builder.put(k2, v2);
@@ -154,7 +157,7 @@ public static <K, V> ImmutableListMultimap<K, V> of(K k1, V v1, K k2, V v2) {
   }
 
   /** Returns an immutable multimap containing the given entries, in order. */
-  public static <K, V> ImmutableListMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableListMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
     ImmutableListMultimap.Builder<K, V> builder = ImmutableListMultimap.builder();
     builder.put(k1, v1);
     builder.put(k2, v2);
@@ -163,7 +166,7 @@ public static <K, V> ImmutableListMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3
   }
 
   /** Returns an immutable multimap containing the given entries, in order. */
-  public static <K, V> ImmutableListMultimap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableListMultimap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
     ImmutableListMultimap.Builder<K, V> builder = ImmutableListMultimap.builder();
     builder.put(k1, v1);
@@ -174,7 +177,7 @@ public static <K, V> ImmutableListMultimap<K, V> of(
   }
 
   /** Returns an immutable multimap containing the given entries, in order. */
-  public static <K, V> ImmutableListMultimap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableListMultimap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5) {
     ImmutableListMultimap.Builder<K, V> builder = ImmutableListMultimap.builder();
     builder.put(k1, v1);
@@ -191,7 +194,7 @@ public static <K, V> ImmutableListMultimap<K, V> of(
    * Returns a new builder. The generated builder is equivalent to the builder created by the {@link
    * Builder} constructor.
    */
-  public static <K, V> Builder<K, V> builder() {
+  public static <K extends @Immutable Object, V extends @Immutable Object> Builder<K, V> builder() {
     return new Builder<>();
   }
 
@@ -214,7 +217,7 @@ public static <K, V> Builder<K, V> builder() {
    *
    * @since 2.0
    */
-  public static final class Builder<K, V> extends ImmutableMultimap.Builder<K, V> {
+  public static final @Mutable class Builder<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableMultimap.Builder<K, V> {
     /**
      * Creates a new builder. The returned builder is equivalent to the builder generated by {@link
      * ImmutableListMultimap#builder}.
@@ -323,7 +326,7 @@ public ImmutableListMultimap<K, V> build() {
    *
    * @throws NullPointerException if any key or value in {@code multimap} is null
    */
-  public static <K, V> ImmutableListMultimap<K, V> copyOf(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableListMultimap<K, V> copyOf(
       Multimap<? extends K, ? extends V> multimap) {
     if (multimap.isEmpty()) {
       return of();
@@ -350,13 +353,13 @@ public static <K, V> ImmutableListMultimap<K, V> copyOf(
    * @since 19.0
    */
   @Beta
-  public static <K, V> ImmutableListMultimap<K, V> copyOf(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableListMultimap<K, V> copyOf(
       Iterable<? extends Entry<? extends K, ? extends V>> entries) {
     return new Builder<K, V>().putAll(entries).build();
   }
 
   /** Creates an ImmutableListMultimap from an asMap.entrySet. */
-  static <K, V> ImmutableListMultimap<K, V> fromMapEntries(
+  static <K extends @Immutable Object, V extends @Immutable Object> ImmutableListMultimap<K, V> fromMapEntries(
       Collection<? extends Map.Entry<? extends K, ? extends Collection<? extends V>>> mapEntries,
       @Nullable Comparator<? super V> valueComparator) {
     if (mapEntries.isEmpty()) {
@@ -472,7 +475,7 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
     if (keyCount < 0) {
       throw new InvalidObjectException("Invalid key count " + keyCount);
     }
-    ImmutableMap.Builder<Object, ImmutableList<Object>> builder = ImmutableMap.builder();
+    ImmutableMap.Builder<@Immutable Object, ImmutableList<Object>> builder = ImmutableMap.builder();
     int tmpSize = 0;
 
     for (int i = 0; i < keyCount; i++) {
@@ -490,7 +493,7 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
       tmpSize += valueCount;
     }
 
-    ImmutableMap<Object, ImmutableList<Object>> tmpMap;
+    ImmutableMap<@Immutable Object, ImmutableList<Object>> tmpMap;
     try {
       tmpMap = builder.buildOrThrow();
     } catch (IllegalArgumentException e) {
diff --git a/guava/src/com/google/common/collect/ImmutableMap.java b/guava/src/com/google/common/collect/ImmutableMap.java
index f827546e1a1c..1baa0c580295 100644
--- a/guava/src/com/google/common/collect/ImmutableMap.java
+++ b/guava/src/com/google/common/collect/ImmutableMap.java
@@ -57,10 +57,15 @@
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * A {@link Map} whose contents will never change, with many other important properties detailed at
@@ -78,7 +83,9 @@
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // we're overriding default serialization
 @ElementTypesAreNonnullByDefault
-public abstract class ImmutableMap<K, V> implements Map<K, V>, Serializable {
+@CFComment("Aosen: V is also immutable because it is used in multimap later")
+@Immutable
+public abstract class ImmutableMap<K extends @Immutable Object, V> implements Map<K, V>, Serializable {
 
   /**
    * Returns a {@link Collector} that accumulates elements into an {@code ImmutableMap} whose keys
@@ -92,7 +99,7 @@ public abstract class ImmutableMap<K, V> implements Map<K, V>, Serializable {
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -109,7 +116,7 @@ public abstract class ImmutableMap<K, V> implements Map<K, V>, Serializable {
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction,
@@ -125,7 +132,7 @@ public abstract class ImmutableMap<K, V> implements Map<K, V>, Serializable {
    * <p><b>Performance note:</b> the instance returned is a singleton.
    */
   @SuppressWarnings("unchecked")
-  public static <K, V> ImmutableMap<K, V> of() {
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> of() {
     return (ImmutableMap<K, V>) RegularImmutableMap.EMPTY;
   }
 
@@ -134,7 +141,7 @@ public static <K, V> ImmutableMap<K, V> of() {
    * {@link Collections#singletonMap} but will not accept a null key or value. It is preferable
    * mainly for consistency and maintainability of your code.
    */
-  public static <K, V> ImmutableMap<K, V> of(K k1, V v1) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableMap<K, V> of(K k1, V v1) {
     return ImmutableBiMap.of(k1, v1);
   }
 
@@ -143,7 +150,7 @@ public static <K, V> ImmutableMap<K, V> of(K k1, V v1) {
    *
    * @throws IllegalArgumentException if duplicate keys are provided
    */
-  public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2) {
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2) {
     return RegularImmutableMap.fromEntries(entryOf(k1, v1), entryOf(k2, v2));
   }
 
@@ -152,7 +159,7 @@ public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2) {
    *
    * @throws IllegalArgumentException if duplicate keys are provided
    */
-  public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
     return RegularImmutableMap.fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3));
   }
 
@@ -161,7 +168,7 @@ public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
    *
    * @throws IllegalArgumentException if duplicate keys are provided
    */
-  public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
     return RegularImmutableMap.fromEntries(
         entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4));
   }
@@ -171,7 +178,7 @@ public static <K, V> ImmutableMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K
    *
    * @throws IllegalArgumentException if duplicate keys are provided
    */
-  public static <K, V> ImmutableMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5) {
     return RegularImmutableMap.fromEntries(
         entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4), entryOf(k5, v5));
@@ -183,7 +190,7 @@ public static <K, V> ImmutableMap<K, V> of(
    * @throws IllegalArgumentException if duplicate keys are provided
    * @since 31.0
    */
-  public static <K, V> ImmutableMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6) {
     return RegularImmutableMap.fromEntries(
         entryOf(k1, v1),
@@ -200,7 +207,7 @@ public static <K, V> ImmutableMap<K, V> of(
    * @throws IllegalArgumentException if duplicate keys are provided
    * @since 31.0
    */
-  public static <K, V> ImmutableMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7) {
     return RegularImmutableMap.fromEntries(
         entryOf(k1, v1),
@@ -218,7 +225,7 @@ public static <K, V> ImmutableMap<K, V> of(
    * @throws IllegalArgumentException if duplicate keys are provided
    * @since 31.0
    */
-  public static <K, V> ImmutableMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -252,7 +259,7 @@ public static <K, V> ImmutableMap<K, V> of(
    * @throws IllegalArgumentException if duplicate keys are provided
    * @since 31.0
    */
-  public static <K, V> ImmutableMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -289,7 +296,7 @@ public static <K, V> ImmutableMap<K, V> of(
    * @throws IllegalArgumentException if duplicate keys are provided
    * @since 31.0
    */
-  public static <K, V> ImmutableMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -332,7 +339,7 @@ public static <K, V> ImmutableMap<K, V> of(
    * @since 31.0
    */
   @SafeVarargs
-  public static <K, V> ImmutableMap<K, V> ofEntries(Entry<? extends K, ? extends V>... entries) {
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> ofEntries(Entry<? extends K, ? extends V>... entries) {
     @SuppressWarnings("unchecked") // we will only ever read these
     Entry<K, V>[] entries2 = (Entry<K, V>[]) entries;
     return RegularImmutableMap.fromEntries(entries2);
@@ -345,7 +352,7 @@ public static <K, V> ImmutableMap<K, V> ofEntries(Entry<? extends K, ? extends V
    * <p>A call to {@link Entry#setValue} on the returned entry will always throw {@link
    * UnsupportedOperationException}.
    */
-  static <K, V> Entry<K, V> entryOf(K key, V value) {
+  static <K extends @Immutable Object, V> @Immutable Entry<K, V> entryOf(K key, V value) {
     return new ImmutableMapEntry<>(key, value);
   }
 
@@ -353,7 +360,7 @@ static <K, V> Entry<K, V> entryOf(K key, V value) {
    * Returns a new builder. The generated builder is equivalent to the builder created by the {@link
    * Builder} constructor.
    */
-  public static <K, V> Builder<K, V> builder() {
+  public static <K extends @Immutable Object, V> Builder<K, V> builder() {
     return new Builder<>();
   }
 
@@ -370,20 +377,20 @@ public static <K, V> Builder<K, V> builder() {
    * @since 23.1
    */
   @Beta
-  public static <K, V> Builder<K, V> builderWithExpectedSize(int expectedSize) {
+  public static <K extends @Immutable Object, V> Builder<K, V> builderWithExpectedSize(int expectedSize) {
     checkNonnegative(expectedSize, "expectedSize");
     return new Builder<>(expectedSize);
   }
 
   static void checkNoConflict(
-      boolean safe, String conflictDescription, Object entry1, Object entry2) {
+      boolean safe, String conflictDescription, @Readonly Object entry1, @Readonly Object entry2) {
     if (!safe) {
       throw conflictException(conflictDescription, entry1, entry2);
     }
   }
 
   static IllegalArgumentException conflictException(
-      String conflictDescription, Object entry1, Object entry2) {
+      String conflictDescription, @Readonly Object entry1, @Readonly Object entry2) {
     return new IllegalArgumentException(
         "Multiple entries with same " + conflictDescription + ": " + entry1 + " and " + entry2);
   }
@@ -418,9 +425,9 @@ static IllegalArgumentException conflictException(
    * @since 2.0
    */
   @DoNotMock
-  public static class Builder<K, V> {
+  public static class Builder<K extends @Immutable Object, V> {
     @CheckForNull Comparator<? super V> valueComparator;
-    @Nullable Entry<K, V>[] entries;
+    @Nullable @Immutable Entry<K, V>[] entries;
     int size;
     boolean entriesUsed;
 
@@ -434,7 +441,7 @@ public Builder() {
 
     @SuppressWarnings({"unchecked", "rawtypes"})
     Builder(int initialCapacity) {
-      this.entries = new @Nullable Entry[initialCapacity];
+      this.entries = new @Nullable @Immutable Entry[initialCapacity];
       this.size = 0;
       this.entriesUsed = false;
     }
@@ -647,8 +654,8 @@ ImmutableMap<K, V> buildJdkBacked() {
       }
     }
 
-    private static <K, V> Entry<K, V>[] lastEntryForEachKey(Entry<K, V>[] entries, int size) {
-      Set<K> seen = new HashSet<>();
+    private static <K extends @Immutable Object, V> Entry<K, V>[] lastEntryForEachKey(Entry<K, V>[] entries, int size) {
+      Set<K> seen = new @Mutable HashSet<>();
       BitSet dups = new BitSet(); // slots that are overridden by a later duplicate key
       for (int i = size - 1; i >= 0; i--) {
         if (!seen.add(entries[i].getKey())) {
@@ -681,7 +688,7 @@ private static <K, V> Entry<K, V>[] lastEntryForEachKey(Entry<K, V>[] entries, i
    *
    * @throws NullPointerException if any key or value in {@code map} is null
    */
-  public static <K, V> ImmutableMap<K, V> copyOf(Map<? extends K, ? extends V> map) {
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> copyOf(Map<? extends K, ? extends V> map) {
     if ((map instanceof ImmutableMap) && !(map instanceof SortedMap)) {
       @SuppressWarnings("unchecked") // safe since map is not writable
       ImmutableMap<K, V> kvMap = (ImmutableMap<K, V>) map;
@@ -705,7 +712,7 @@ public static <K, V> ImmutableMap<K, V> copyOf(Map<? extends K, ? extends V> map
    * @since 19.0
    */
   @Beta
-  public static <K, V> ImmutableMap<K, V> copyOf(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableMap<K, V> copyOf(
       Iterable<? extends Entry<? extends K, ? extends V>> entries) {
     @SuppressWarnings("unchecked") // we'll only be using getKey and getValue, which are covariant
     Entry<K, V>[] entryArray = (Entry<K, V>[]) Iterables.toArray(entries, EMPTY_ENTRY_ARRAY);
@@ -736,7 +743,8 @@ private static <K extends Enum<K>, V> ImmutableMap<K, V> copyOfEnumMap(
 
   static final Entry<?, ?>[] EMPTY_ENTRY_ARRAY = new Entry<?, ?>[0];
 
-  abstract static class IteratorBasedImmutableMap<K, V> extends ImmutableMap<K, V> {
+  @Immutable
+  abstract static class IteratorBasedImmutableMap<K extends @Immutable Object, V> extends ImmutableMap<K, V> {
     abstract UnmodifiableIterator<Entry<K, V>> entryIterator();
 
     Spliterator<Entry<K, V>> entrySpliterator() {
@@ -753,6 +761,7 @@ ImmutableSet<K> createKeySet() {
 
     @Override
     ImmutableSet<Entry<K, V>> createEntrySet() {
+      @Immutable
       class EntrySetImpl extends ImmutableMapEntrySet<K, V> {
         @Override
         ImmutableMap<K, V> map() {
@@ -923,7 +932,7 @@ public final void replaceAll(BiFunction<? super K, ? super V, ? extends V> funct
   @Override
   @DoNotCall("Always throws UnsupportedOperationException")
   @CheckForNull
-  public final V remove(@CheckForNull @UnknownSignedness Object o) {
+  public final V remove(@CheckForNull @UnknownSignedness @Readonly Object o) {
     throw new UnsupportedOperationException();
   }
 
@@ -936,7 +945,7 @@ public final V remove(@CheckForNull @UnknownSignedness Object o) {
   @Deprecated
   @Override
   @DoNotCall("Always throws UnsupportedOperationException")
-  public final boolean remove(@CheckForNull @UnknownSignedness Object key, @CheckForNull @UnknownSignedness Object value) {
+  public final boolean remove(@CheckForNull @UnknownSignedness @Readonly Object key, @CheckForNull @UnknownSignedness @Readonly Object value) {
     throw new UnsupportedOperationException();
   }
 
@@ -961,20 +970,20 @@ public boolean isEmpty() {
 
   @Pure
   @Override
-  public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+  public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
     return get(key) != null;
   }
 
   @Pure
   @Override
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@CheckForNull @UnknownSignedness @Readonly Object value) {
     return values().contains(value);
   }
 
   // Overriding to mark it Nullable
   @Override
   @CheckForNull
-  public abstract V get(@CheckForNull @UnknownSignedness Object key);
+  public abstract V get(@CheckForNull @UnknownSignedness @Readonly Object key);
 
   /**
    * @since 21.0 (but only since 23.5 in the Android <a
@@ -1018,7 +1027,8 @@ public final V getOrDefault(@CheckForNull @UnknownSignedness Object key, @CheckF
     }
   }
 
-  @LazyInit @RetainedWith @CheckForNull private transient ImmutableSet<Entry<K, V>> entrySet;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @RetainedWith @CheckForNull private transient @Assignable ImmutableSet<Entry<K, V>> entrySet;
 
   /**
    * Returns an immutable set of the mappings in this map. The iteration order is specified by the
@@ -1033,7 +1043,8 @@ public final V getOrDefault(@CheckForNull @UnknownSignedness Object key, @CheckF
 
   abstract ImmutableSet<Entry<K, V>> createEntrySet();
 
-  @LazyInit @RetainedWith @CheckForNull private transient ImmutableSet<K> keySet;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @RetainedWith @CheckForNull private transient @Assignable ImmutableSet<K> keySet;
 
   /**
    * Returns an immutable set of the keys in this map, in the same order that they appear in {@link
@@ -1072,7 +1083,7 @@ Spliterator<K> keySpliterator() {
     return CollectSpliterators.map(entrySet().spliterator(), Entry::getKey);
   }
 
-  @LazyInit @RetainedWith @CheckForNull private transient ImmutableCollection<V> values;
+  @LazyInit @RetainedWith @CheckForNull private transient @Assignable ImmutableCollection<V> values;
 
   /**
    * Returns an immutable collection of the values in this map, in the same order that they appear
@@ -1093,18 +1104,19 @@ public ImmutableCollection<V> values() {
   abstract ImmutableCollection<V> createValues();
 
   // cached so that this.multimapView().inverse() only computes inverse once
-  @LazyInit @CheckForNull private transient ImmutableSetMultimap<K, V> multimapView;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @CheckForNull private transient ImmutableSetMultimap<K, @Immutable V> multimapView;
 
   /**
    * Returns a multimap view of the map.
    *
    * @since 14.0
    */
-  public ImmutableSetMultimap<K, V> asMultimap() {
+  public ImmutableSetMultimap<K, @Immutable V> asMultimap() {
     if (isEmpty()) {
       return ImmutableSetMultimap.of();
     }
-    ImmutableSetMultimap<K, V> result = multimapView;
+    ImmutableSetMultimap<K, @Immutable V> result = multimapView;
     return (result == null)
         ? (multimapView =
             new ImmutableSetMultimap<>(new MapViewOfValuesAsSingletonSets(), size(), null))
@@ -1112,6 +1124,7 @@ public ImmutableSetMultimap<K, V> asMultimap() {
   }
 
   @WeakOuter
+  @Immutable
   private final class MapViewOfValuesAsSingletonSets
       extends IteratorBasedImmutableMap<K, ImmutableSet<V>> {
 
@@ -1126,13 +1139,13 @@ ImmutableSet<K> createKeySet() {
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return ImmutableMap.this.containsKey(key);
     }
 
     @Override
     @CheckForNull
-    public ImmutableSet<V> get(@CheckForNull @UnknownSignedness Object key) {
+    public ImmutableSet<V> get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       V outerValue = ImmutableMap.this.get(key);
       return (outerValue == null) ? null : ImmutableSet.of(outerValue);
     }
@@ -1183,7 +1196,7 @@ public ImmutableSet<V> getValue() {
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@CheckForNull @Readonly Object object) {
     return Maps.equalsImpl(this, object);
   }
 
@@ -1210,7 +1223,7 @@ public String toString() {
    * reconstructed using public factory methods. This ensures that the implementation types remain
    * as implementation details.
    */
-  static class SerializedForm<K, V> implements Serializable {
+  static class SerializedForm<K extends @Immutable Object, V> implements Serializable {
     // This object retains references to collections returned by keySet() and value(). This saves
     // bytes when the both the map and its keySet or value collection are written to the same
     // instance of ObjectOutputStream.
@@ -1227,7 +1240,7 @@ static class SerializedForm<K, V> implements Serializable {
         Object[] values = new Object[map.size()];
         int i = 0;
         // "extends Object" works around https://github.com/typetools/checker-framework/issues/3013
-        for (Entry<? extends Object, ? extends Object> entry : map.entrySet()) {
+        for (Entry<? extends Object, ? extends @Readonly Object> entry : map.entrySet()) {
           keys[i] = entry.getKey();
           values[i] = entry.getValue();
           i++;
@@ -1241,7 +1254,7 @@ static class SerializedForm<K, V> implements Serializable {
     }
 
     @SuppressWarnings("unchecked")
-    final Object readResolve() {
+    final @Immutable Object readResolve() {
       if (!(this.keys instanceof ImmutableSet)) {
         return legacyReadResolve();
       }
@@ -1262,7 +1275,7 @@ final Object readResolve() {
     }
 
     @SuppressWarnings("unchecked")
-    final Object legacyReadResolve() {
+    final @Immutable Object legacyReadResolve() {
       K[] keys = (K[]) this.keys;
       V[] values = (V[]) this.values;
 
diff --git a/guava/src/com/google/common/collect/ImmutableMapEntry.java b/guava/src/com/google/common/collect/ImmutableMapEntry.java
index ac483d8fd8ee..9a38712d72fa 100644
--- a/guava/src/com/google/common/collect/ImmutableMapEntry.java
+++ b/guava/src/com/google/common/collect/ImmutableMapEntry.java
@@ -20,6 +20,8 @@
 
 import com.google.common.annotations.GwtIncompatible;
 import javax.annotation.CheckForNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Implementation of {@code Entry} for {@link ImmutableMap} that adds extra methods to traverse hash
@@ -32,9 +34,11 @@
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtIncompatible // unnecessary
 @ElementTypesAreNonnullByDefault
-class ImmutableMapEntry<K, V> extends ImmutableEntry<K, V> {
+@Immutable
+class ImmutableMapEntry<K extends @Immutable Object, V> extends ImmutableEntry<K, V> {
   /**
    * Creates an {@code ImmutableMapEntry} array to hold parameterized entries. The result must never
    * be upcast back to ImmutableMapEntry[] (or Object[], etc.), or allowed to escape the class.
@@ -77,7 +81,8 @@ boolean isReusable() {
     return true;
   }
 
-  static class NonTerminalImmutableMapEntry<K, V> extends ImmutableMapEntry<K, V> {
+  @Immutable
+  static class NonTerminalImmutableMapEntry<K extends @Immutable Object, V> extends ImmutableMapEntry<K, V> {
     /*
      * Yes, we sometimes set nextInKeyBucket to null, even for this "non-terminal" entry. We don't
      * do that with a plain NonTerminalImmutableMapEntry, but we do do it with the BiMap-specific
@@ -104,7 +109,8 @@ final boolean isReusable() {
     }
   }
 
-  static final class NonTerminalImmutableBiMapEntry<K, V>
+  @Immutable
+  static final class NonTerminalImmutableBiMapEntry<K extends @Immutable Object, V extends @Immutable Object>
       extends NonTerminalImmutableMapEntry<K, V> {
     @CheckForNull private final transient ImmutableMapEntry<K, V> nextInValueBucket;
 
diff --git a/guava/src/com/google/common/collect/ImmutableMapEntrySet.java b/guava/src/com/google/common/collect/ImmutableMapEntrySet.java
index fec6d1525a6d..0b62ca7223d0 100644
--- a/guava/src/com/google/common/collect/ImmutableMapEntrySet.java
+++ b/guava/src/com/google/common/collect/ImmutableMapEntrySet.java
@@ -25,6 +25,8 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -35,16 +37,18 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-abstract class ImmutableMapEntrySet<K, V> extends ImmutableSet.CachingAsList<Entry<K, V>> {
-  static final class RegularEntrySet<K, V> extends ImmutableMapEntrySet<K, V> {
+@Immutable
+abstract class ImmutableMapEntrySet<K extends @Immutable Object, V> extends ImmutableSet.CachingAsList<Entry<K, V>> {
+  @Immutable
+  static final class RegularEntrySet<K extends @Immutable Object, V> extends ImmutableMapEntrySet<K, V> {
     private final transient ImmutableMap<K, V> map;
-    private final transient ImmutableList<Entry<K, V>> entries;
+    private final transient ImmutableList<@Immutable Entry<K, V>> entries;
 
-    RegularEntrySet(ImmutableMap<K, V> map, Entry<K, V>[] entries) {
+    RegularEntrySet(ImmutableMap<K, V> map, @Immutable Entry<K, V>[] entries) {
       this(map, ImmutableList.<Entry<K, V>>asImmutableList(entries));
     }
 
-    RegularEntrySet(ImmutableMap<K, V> map, ImmutableList<Entry<K, V>> entries) {
+    RegularEntrySet(ImmutableMap<K, V> map, ImmutableList<@Immutable Entry<K, V>> entries) {
       this.map = map;
       this.entries = entries;
     }
@@ -91,7 +95,7 @@ ImmutableList<Entry<K, V>> createAsList() {
   }
 
   @Override
-  public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+  public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
     if (object instanceof Entry) {
       Entry<?, ?> entry = (Entry<?, ?>) object;
       V value = map().get(entry.getKey());
@@ -123,14 +127,14 @@ Object writeReplace() {
   }
 
   @GwtIncompatible // serialization
-  private static class EntrySetSerializedForm<K, V> implements Serializable {
+  private static class EntrySetSerializedForm<K extends @Immutable Object, V> implements Serializable {
     final ImmutableMap<K, V> map;
 
     EntrySetSerializedForm(ImmutableMap<K, V> map) {
       this.map = map;
     }
 
-    Object readResolve() {
+    @Immutable Object readResolve() {
       return map.entrySet();
     }
 
diff --git a/guava/src/com/google/common/collect/ImmutableMapKeySet.java b/guava/src/com/google/common/collect/ImmutableMapKeySet.java
index ef845fdf3529..6ea3f87d3b71 100644
--- a/guava/src/com/google/common/collect/ImmutableMapKeySet.java
+++ b/guava/src/com/google/common/collect/ImmutableMapKeySet.java
@@ -25,6 +25,7 @@
 import java.util.function.Consumer;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -35,7 +36,8 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-final class ImmutableMapKeySet<K, V> extends IndexedImmutableSet<K> {
+@Immutable
+final class ImmutableMapKeySet<K extends @Immutable Object, V> extends IndexedImmutableSet<K> {
   private final ImmutableMap<K, V> map;
 
   ImmutableMapKeySet(ImmutableMap<K, V> map) {
@@ -81,7 +83,7 @@ boolean isPartialView() {
   // No longer used for new writes, but kept so that old data can still be read.
   @GwtIncompatible // serialization
   @SuppressWarnings("unused")
-  private static class KeySetSerializedForm<K> implements Serializable {
+  private static class KeySetSerializedForm<K extends @Immutable Object> implements Serializable {
     final ImmutableMap<K, ?> map;
 
     KeySetSerializedForm(ImmutableMap<K, ?> map) {
diff --git a/guava/src/com/google/common/collect/ImmutableMapValues.java b/guava/src/com/google/common/collect/ImmutableMapValues.java
index cfa905e7d2ea..73d9a7da469b 100644
--- a/guava/src/com/google/common/collect/ImmutableMapValues.java
+++ b/guava/src/com/google/common/collect/ImmutableMapValues.java
@@ -26,7 +26,10 @@
 import java.util.function.Consumer;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * {@code values()} implementation for {@link ImmutableMap}.
@@ -34,9 +37,11 @@
  * @author Jesse Wilson
  * @author Kevin Bourrillion
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-final class ImmutableMapValues<K, V> extends ImmutableCollection<V> {
+@Immutable
+final class ImmutableMapValues<K extends @Immutable Object, V> extends ImmutableCollection<V> {
   private final ImmutableMap<K, V> map;
 
   ImmutableMapValues(ImmutableMap<K, V> map) {
@@ -49,7 +54,7 @@ final class ImmutableMapValues<K, V> extends ImmutableCollection<V> {
   }
 
   @Override
-  public UnmodifiableIterator<V> iterator() {
+  public @Readonly UnmodifiableIterator<V> iterator() {
     return new UnmodifiableIterator<V>() {
       final UnmodifiableIterator<Entry<K, V>> entryItr = map.entrySet().iterator();
 
@@ -71,7 +76,7 @@ public Spliterator<V> spliterator() {
   }
 
   @Override
-  public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+  public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
     return object != null && Iterators.contains(iterator(), object);
   }
 
@@ -113,7 +118,7 @@ private static class SerializedForm<V> implements Serializable {
       this.map = map;
     }
 
-    Object readResolve() {
+    @Immutable Object readResolve() {
       return map.values();
     }
 
diff --git a/guava/src/com/google/common/collect/ImmutableMultimap.java b/guava/src/com/google/common/collect/ImmutableMultimap.java
index 12eec7742bf8..6b665f2accd3 100644
--- a/guava/src/com/google/common/collect/ImmutableMultimap.java
+++ b/guava/src/com/google/common/collect/ImmutableMultimap.java
@@ -43,6 +43,9 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -74,10 +77,11 @@
  * @author Jared Levy
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-public abstract class ImmutableMultimap<K, V> extends BaseImmutableMultimap<K, V>
+@Immutable
+public abstract class ImmutableMultimap<K extends @Immutable Object, V extends @Immutable Object> extends BaseImmutableMultimap<K, V>
     implements Serializable {
 
   /**
@@ -85,17 +89,17 @@ public abstract class ImmutableMultimap<K, V> extends BaseImmutableMultimap<K, V
    *
    * <p><b>Performance note:</b> the instance returned is a singleton.
    */
-  public static <K, V> ImmutableMultimap<K, V> of() {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableMultimap<K, V> of() {
     return ImmutableListMultimap.of();
   }
 
   /** Returns an immutable multimap containing a single entry. */
-  public static <K, V> ImmutableMultimap<K, V> of(K k1, V v1) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableMultimap<K, V> of(K k1, V v1) {
     return ImmutableListMultimap.of(k1, v1);
   }
 
   /** Returns an immutable multimap containing the given entries, in order. */
-  public static <K, V> ImmutableMultimap<K, V> of(K k1, V v1, K k2, V v2) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableMultimap<K, V> of(K k1, V v1, K k2, V v2) {
     return ImmutableListMultimap.of(k1, v1, k2, v2);
   }
 
@@ -103,7 +107,7 @@ public static <K, V> ImmutableMultimap<K, V> of(K k1, V v1, K k2, V v2) {
    * Returns an immutable multimap containing the given entries, in the "key-grouped" insertion
    * order described in the <a href="#iteration">class documentation</a>.
    */
-  public static <K, V> ImmutableMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
     return ImmutableListMultimap.of(k1, v1, k2, v2, k3, v3);
   }
 
@@ -111,7 +115,7 @@ public static <K, V> ImmutableMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3, V
    * Returns an immutable multimap containing the given entries, in the "key-grouped" insertion
    * order described in the <a href="#iteration">class documentation</a>.
    */
-  public static <K, V> ImmutableMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
     return ImmutableListMultimap.of(k1, v1, k2, v2, k3, v3, k4, v4);
   }
 
@@ -119,7 +123,7 @@ public static <K, V> ImmutableMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3, V
    * Returns an immutable multimap containing the given entries, in the "key-grouped" insertion
    * order described in the <a href="#iteration">class documentation</a>.
    */
-  public static <K, V> ImmutableMultimap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableMultimap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5) {
     return ImmutableListMultimap.of(k1, v1, k2, v2, k3, v3, k4, v4, k5, v5);
   }
@@ -130,7 +134,7 @@ public static <K, V> ImmutableMultimap<K, V> of(
    * Returns a new builder. The generated builder is equivalent to the builder created by the {@link
    * Builder} constructor.
    */
-  public static <K, V> Builder<K, V> builder() {
+  public static <K extends @Immutable Object, V extends @Immutable Object> Builder<K, V> builder() {
     return new Builder<>();
   }
 
@@ -154,7 +158,7 @@ public static <K, V> Builder<K, V> builder() {
    * @since 2.0
    */
   @DoNotMock
-  public static class Builder<K, V> {
+  public static class Builder<K extends @Immutable Object, V extends @Immutable Object> {
     final Map<K, Collection<V>> builderMap;
     @CheckForNull Comparator<? super K> keyComparator;
     @CheckForNull Comparator<? super V> valueComparator;
@@ -189,7 +193,7 @@ public Builder<K, V> put(K key, V value) {
      * @since 11.0
      */
     @CanIgnoreReturnValue
-    public Builder<K, V> put(Entry<? extends K, ? extends V> entry) {
+    public Builder<K, V> put(@Readonly Entry<? extends K, ? extends V> entry) {
       return put(entry.getKey(), entry.getValue());
     }
 
@@ -260,8 +264,8 @@ public Builder<K, V> putAll(K key, V... values) {
      *     left in an invalid state.
      */
     @CanIgnoreReturnValue
-    public Builder<K, V> putAll(Multimap<? extends K, ? extends V> multimap) {
-      for (Entry<? extends K, ? extends Collection<? extends V>> entry :
+    public Builder<K, V> putAll(@Readonly Multimap<? extends K, ? extends V> multimap) {
+      for (Entry<? extends K, ? extends @Readonly Collection<? extends V>> entry :
           multimap.asMap().entrySet()) {
         putAll(entry.getKey(), entry.getValue());
       }
@@ -318,7 +322,7 @@ public ImmutableMultimap<K, V> build() {
    *
    * @throws NullPointerException if any key or value in {@code multimap} is null
    */
-  public static <K, V> ImmutableMultimap<K, V> copyOf(Multimap<? extends K, ? extends V> multimap) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableMultimap<K, V> copyOf(Multimap<? extends K, ? extends V> multimap) {
     if (multimap instanceof ImmutableMultimap) {
       @SuppressWarnings("unchecked") // safe since multimap is not writable
       ImmutableMultimap<K, V> kvMultimap = (ImmutableMultimap<K, V>) multimap;
@@ -338,7 +342,7 @@ public static <K, V> ImmutableMultimap<K, V> copyOf(Multimap<? extends K, ? exte
    * @since 19.0
    */
   @Beta
-  public static <K, V> ImmutableMultimap<K, V> copyOf(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableMultimap<K, V> copyOf(
       Iterable<? extends Entry<? extends K, ? extends V>> entries) {
     return ImmutableListMultimap.copyOf(entries);
   }
@@ -377,7 +381,7 @@ static class FieldSettersHolder {
   // DoNotCall wants this to be final, but we want to override it to return more specific types.
   // Inheritance is closed, and all subtypes are @DoNotCall, so this is safe to suppress.
   @SuppressWarnings("DoNotCall")
-  public ImmutableCollection<V> removeAll(@CheckForNull Object key) {
+  public ImmutableCollection<V> removeAll(@CheckForNull @Readonly Object key) {
     throw new UnsupportedOperationException();
   }
 
@@ -465,7 +469,7 @@ public final boolean putAll(K key, Iterable<? extends V> values) {
   @Deprecated
   @Override
   @DoNotCall("Always throws UnsupportedOperationException")
-  public final boolean putAll(Multimap<? extends K, ? extends V> multimap) {
+  public final boolean putAll(@Readonly Multimap<? extends K, ? extends V> multimap) {
     throw new UnsupportedOperationException();
   }
 
@@ -479,7 +483,7 @@ public final boolean putAll(Multimap<? extends K, ? extends V> multimap) {
   @Deprecated
   @Override
   @DoNotCall("Always throws UnsupportedOperationException")
-  public final boolean remove(@CheckForNull Object key, @CheckForNull Object value) {
+  public final boolean remove(@CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
     throw new UnsupportedOperationException();
   }
 
@@ -497,13 +501,13 @@ boolean isPartialView() {
 
   @Pure
   @Override
-  public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+  public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
     return map.containsKey(key);
   }
 
   @Pure
   @Override
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@CheckForNull @UnknownSignedness @Readonly Object value) {
     return value != null && super.containsValue(value);
   }
 
@@ -536,7 +540,7 @@ Set<K> createKeySet() {
    */
   @Override
   @SuppressWarnings("unchecked") // a widening cast
-  public ImmutableMap<K, Collection<V>> asMap() {
+  public ImmutableMap<K, @Immutable Collection<V>> asMap() {
     return (ImmutableMap) map;
   }
 
@@ -548,16 +552,17 @@ Map<K, Collection<V>> createAsMap() {
   /** Returns an immutable collection of all key-value pairs in the multimap. */
   @SideEffectFree
   @Override
-  public ImmutableCollection<Entry<K, V>> entries() {
-    return (ImmutableCollection<Entry<K, V>>) super.entries();
+  public ImmutableCollection<@Immutable Entry<K, V>> entries() {
+    return (ImmutableCollection<@Immutable Entry<K, V>>) super.entries();
   }
 
   @Override
-  ImmutableCollection<Entry<K, V>> createEntries() {
+  ImmutableCollection<@Immutable Entry<K, V>> createEntries() {
     return new EntryCollection<>(this);
   }
 
-  private static class EntryCollection<K, V> extends ImmutableCollection<Entry<K, V>> {
+  @Immutable
+  private static class EntryCollection<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableCollection<@Immutable Entry<K, V>> {
     @Weak final ImmutableMultimap<K, V> multimap;
 
     EntryCollection(ImmutableMultimap<K, V> multimap) {
@@ -565,7 +570,7 @@ private static class EntryCollection<K, V> extends ImmutableCollection<Entry<K,
     }
 
     @Override
-    public UnmodifiableIterator<Entry<K, V>> iterator() {
+    public UnmodifiableIterator<@Immutable Entry<K, V>> iterator() {
       return multimap.entryIterator();
     }
 
@@ -582,9 +587,9 @@ boolean isPartialView() {
 
     @Pure
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+    public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
       if (object instanceof Entry) {
-        Entry<?, ?> entry = (Entry<?, ?>) object;
+        Entry<?, ?> entry = (@Immutable Entry<?, ?>) object;
         return multimap.containsEntry(entry.getKey(), entry.getValue());
       }
       return false;
@@ -594,9 +599,9 @@ public boolean contains(@CheckForNull @UnknownSignedness Object object) {
   }
 
   @Override
-  UnmodifiableIterator<Entry<K, V>> entryIterator() {
-    return new UnmodifiableIterator<Entry<K, V>>() {
-      final Iterator<? extends Entry<K, ? extends ImmutableCollection<V>>> asMapItr =
+  UnmodifiableIterator<@Immutable Entry<K, V>> entryIterator() {
+    return new UnmodifiableIterator<@Immutable Entry<K, V>>() {
+      final Iterator<? extends @Immutable Entry<K, ? extends ImmutableCollection<V>>> asMapItr =
           map.entrySet().iterator();
       @CheckForNull K currentKey = null;
       Iterator<V> valueItr = Iterators.emptyIterator();
@@ -607,7 +612,7 @@ public boolean hasNext() {
       }
 
       @Override
-      public Entry<K, V> next() {
+      public @Immutable Entry<K, V> next() {
         if (!valueItr.hasNext()) {
           Entry<K, ? extends ImmutableCollection<V>> entry = asMapItr.next();
           currentKey = entry.getKey();
@@ -623,7 +628,7 @@ public Entry<K, V> next() {
   }
 
   @Override
-  Spliterator<Entry<K, V>> entrySpliterator() {
+  Spliterator<@Immutable Entry<K, V>> entrySpliterator() {
     return CollectSpliterators.flatMap(
         asMap().entrySet().spliterator(),
         keyToValueCollectionEntry -> {
@@ -661,14 +666,15 @@ ImmutableMultiset<K> createKeys() {
 
   @SuppressWarnings("serial") // Uses writeReplace, not default serialization
   @WeakOuter
+  @Immutable
   class Keys extends ImmutableMultiset<K> {
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+    public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
       return containsKey(object);
     }
 
     @Override
-    public @NonNegative int count(@CheckForNull @UnknownSignedness Object element) {
+    public @NonNegative int count(@CheckForNull @UnknownSignedness @Readonly Object element) {
       Collection<V> values = map.get(element);
       return (values == null) ? 0 : values.size();
     }
@@ -684,7 +690,7 @@ public ImmutableSet<K> elementSet() {
     }
 
     @Override
-    Multiset.Entry<K> getEntry(int index) {
+    Multiset.@Immutable Entry<K> getEntry(int index) {
       Map.Entry<K, ? extends Collection<V>> entry = map.entrySet().asList().get(index);
       return Multisets.immutableEntry(entry.getKey(), entry.getValue().size());
     }
@@ -709,7 +715,7 @@ private static final class KeysSerializedForm implements Serializable {
       this.multimap = multimap;
     }
 
-    Object readResolve() {
+    @Immutable Object readResolve() {
       return multimap.keys();
     }
   }
@@ -750,7 +756,8 @@ public V next() {
     };
   }
 
-  private static final class Values<K, V> extends ImmutableCollection<V> {
+  @Immutable
+  private static final class Values<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableCollection<V> {
     @Weak private final transient ImmutableMultimap<K, V> multimap;
 
     Values(ImmutableMultimap<K, V> multimap) {
@@ -758,7 +765,7 @@ private static final class Values<K, V> extends ImmutableCollection<V> {
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+    public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
       return multimap.containsValue(object);
     }
 
@@ -792,7 +799,7 @@ boolean isPartialView() {
 
   private static final long serialVersionUID = 0;
 
-public boolean containsEntry(@Nullable Object arg0, @Nullable Object arg1) { return super.containsEntry(arg0, arg1); }
+public boolean containsEntry(@Nullable @Readonly Object arg0, @Nullable @Readonly Object arg1) { return super.containsEntry(arg0, arg1); }
 
-public boolean equals(@Nullable Object arg0) { return super.equals(arg0); }
+public boolean equals(@Nullable @Readonly Object arg0) { return super.equals(arg0); }
 }
diff --git a/guava/src/com/google/common/collect/ImmutableMultiset.java b/guava/src/com/google/common/collect/ImmutableMultiset.java
index 001c0e72764d..2f80865a0ef4 100644
--- a/guava/src/com/google/common/collect/ImmutableMultiset.java
+++ b/guava/src/com/google/common/collect/ImmutableMultiset.java
@@ -38,10 +38,13 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * A {@link Multiset} whose contents will never change, with many other important properties
@@ -62,6 +65,7 @@
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // we're overriding default serialization
 @ElementTypesAreNonnullByDefault
+@Immutable
 public abstract class ImmutableMultiset<E> extends ImmutableMultisetGwtSerializationDependencies<E>
     implements Multiset<E> {
 
@@ -378,6 +382,7 @@ private ImmutableSet<Entry<E>> createEntrySet() {
   abstract Entry<E> getEntry(int index);
 
   @WeakOuter
+  @Immutable
   private final class EntrySet extends IndexedImmutableSet<Entry<E>> {
     @Override
     boolean isPartialView() {
@@ -470,15 +475,16 @@ public static <E> Builder<E> builder() {
    *
    * @since 2.0
    */
-  public static class Builder<E> extends ImmutableCollection.Builder<E> {
+  public static @Mutable class Builder<E> extends ImmutableCollection.Builder<E> {
     final Multiset<E> contents;
 
     /**
      * Creates a new builder. The returned builder is equivalent to the builder generated by {@link
      * ImmutableMultiset#builder}.
      */
+    @CFComment("Annotation on static method's type argument")
     public Builder() {
-      this(LinkedHashMultiset.<E>create());
+      this(LinkedHashMultiset.<@Immutable E>create());
     }
 
     Builder(Multiset<E> contents) {
@@ -591,12 +597,13 @@ public ImmutableMultiset<E> build() {
     @VisibleForTesting
     ImmutableMultiset<E> buildJdkBacked() {
       if (contents.isEmpty()) {
-        return of();
+        return ImmutableMultiset.<E>of();
       }
       return JdkBackedImmutableMultiset.create(contents.entrySet());
     }
   }
 
+  @Immutable
   static final class ElementSet<E> extends ImmutableSet.Indexed<E> {
     private final List<Entry<E>> entries;
     // TODO(cpovirk): @Weak?
@@ -646,7 +653,7 @@ static final class SerializedForm implements Serializable {
     }
 
     Object readResolve() {
-      LinkedHashMultiset<Object> multiset = LinkedHashMultiset.create(elements.length);
+      LinkedHashMultiset<@Immutable Object> multiset = LinkedHashMultiset.create(elements.length);
       for (int i = 0; i < elements.length; i++) {
         multiset.add(elements[i], counts[i]);
       }
diff --git a/guava/src/com/google/common/collect/ImmutableMultisetGwtSerializationDependencies.java b/guava/src/com/google/common/collect/ImmutableMultisetGwtSerializationDependencies.java
index 2469a188a2a6..c9ffad62a191 100644
--- a/guava/src/com/google/common/collect/ImmutableMultisetGwtSerializationDependencies.java
+++ b/guava/src/com/google/common/collect/ImmutableMultisetGwtSerializationDependencies.java
@@ -17,6 +17,7 @@
 package com.google.common.collect;
 
 import com.google.common.annotations.GwtCompatible;
+import org.checkerframework.checker.pico.qual.Immutable;
 
 /**
  * A dummy superclass to support GWT serialization of the element type of an {@link
@@ -38,4 +39,5 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@Immutable
 abstract class ImmutableMultisetGwtSerializationDependencies<E> extends ImmutableCollection<E> {}
diff --git a/guava/src/com/google/common/collect/ImmutableRangeMap.java b/guava/src/com/google/common/collect/ImmutableRangeMap.java
index b6cc0fa8e638..d4e40eb82cfb 100644
--- a/guava/src/com/google/common/collect/ImmutableRangeMap.java
+++ b/guava/src/com/google/common/collect/ImmutableRangeMap.java
@@ -37,7 +37,10 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A {@link RangeMap} whose contents will never change, with many other important properties
@@ -46,12 +49,14 @@
  * @author Louis Wasserman
  * @since 14.0
  */
+@AnnotatedFor("pico")
 @Beta
 @GwtIncompatible // NavigableMap
 @ElementTypesAreNonnullByDefault
-public class ImmutableRangeMap<K extends Comparable<?>, V> implements RangeMap<K, V>, Serializable {
+@Immutable
+public class ImmutableRangeMap<K extends @Immutable Comparable<?>, V> implements RangeMap<K, V>, Serializable {
 
-  private static final ImmutableRangeMap<Comparable<?>, Object> EMPTY =
+  private static final ImmutableRangeMap<@Immutable Comparable<?>, Object> EMPTY =
       new ImmutableRangeMap<>(ImmutableList.<Range<Comparable<?>>>of(), ImmutableList.of());
 
   /**
@@ -60,7 +65,7 @@ public class ImmutableRangeMap<K extends Comparable<?>, V> implements RangeMap<K
    *
    * @since 23.1
    */
-  public static <T extends @Nullable Object, K extends Comparable<? super K>, V>
+  public static <T extends @Nullable @Readonly Object, K extends @Immutable Comparable<? super K>, V>
       Collector<T, ?, ImmutableRangeMap<K, V>> toImmutableRangeMap(
           Function<? super T, Range<K>> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -73,17 +78,17 @@ public class ImmutableRangeMap<K extends Comparable<?>, V> implements RangeMap<K
    * <p><b>Performance note:</b> the instance returned is a singleton.
    */
   @SuppressWarnings("unchecked")
-  public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> of() {
+  public static <K extends @Immutable Comparable<?>, V> ImmutableRangeMap<K, V> of() {
     return (ImmutableRangeMap<K, V>) EMPTY;
   }
 
   /** Returns an immutable range map mapping a single range to a single value. */
-  public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> of(Range<K> range, V value) {
+  public static <K extends @Immutable Comparable<?>, V> ImmutableRangeMap<K, V> of(Range<K> range, V value) {
     return new ImmutableRangeMap<>(ImmutableList.of(range), ImmutableList.of(value));
   }
 
   @SuppressWarnings("unchecked")
-  public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> copyOf(
+  public static <K extends @Immutable Comparable<?>, V> ImmutableRangeMap<K, V> copyOf(
       RangeMap<K, ? extends V> rangeMap) {
     if (rangeMap instanceof ImmutableRangeMap) {
       return (ImmutableRangeMap<K, V>) rangeMap;
@@ -99,7 +104,7 @@ public static <K extends Comparable<?>, V> ImmutableRangeMap<K, V> copyOf(
   }
 
   /** Returns a new builder for an immutable range map. */
-  public static <K extends Comparable<?>, V> Builder<K, V> builder() {
+  public static <K extends @Immutable Comparable<?>, V> Builder<K, V> builder() {
     return new Builder<>();
   }
 
@@ -109,7 +114,7 @@ public static <K extends Comparable<?>, V> Builder<K, V> builder() {
    * @since 14.0
    */
   @DoNotMock
-  public static final class Builder<K extends Comparable<?>, V> {
+  public static final class Builder<K extends @Immutable Comparable<?>, V> {
     private final List<Entry<Range<K>, V>> entries;
 
     public Builder() {
@@ -199,7 +204,7 @@ public V get(K key) {
 
   @Override
   @CheckForNull
-  public Entry<Range<K>, V> getEntry(K key) {
+  public @Immutable Entry<Range<K>, V> getEntry(K key) {
     int index =
         SortedLists.binarySearch(
             ranges,
@@ -388,12 +393,12 @@ public ImmutableRangeMap<K, V> subRangeMap(Range<K> subRange) {
   }
 
   @Override
-  public int hashCode(@UnknownSignedness ImmutableRangeMap<K, V> this) {
+  public int hashCode(@UnknownSignedness @Readonly ImmutableRangeMap<K, V> this) {
     return asMapOfRanges().hashCode();
   }
 
   @Override
-  public boolean equals(@CheckForNull Object o) {
+  public boolean equals(@CheckForNull @Readonly Object o) {
     if (o instanceof RangeMap) {
       RangeMap<?, ?> rangeMap = (RangeMap<?, ?>) o;
       return asMapOfRanges().equals(rangeMap.asMapOfRanges());
diff --git a/guava/src/com/google/common/collect/ImmutableRangeSet.java b/guava/src/com/google/common/collect/ImmutableRangeSet.java
index 5e87614609ba..fe1289694430 100644
--- a/guava/src/com/google/common/collect/ImmutableRangeSet.java
+++ b/guava/src/com/google/common/collect/ImmutableRangeSet.java
@@ -39,7 +39,11 @@
 import java.util.stream.Collector;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A {@link RangeSet} whose contents will never change, with many other important properties
@@ -48,10 +52,12 @@
  * @author Louis Wasserman
  * @since 14.0
  */
+@AnnotatedFor("pico")
 @Beta
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-public final class ImmutableRangeSet<C extends Comparable> extends AbstractRangeSet<C>
+@Immutable
+public final class ImmutableRangeSet<C extends @Readonly Comparable> extends AbstractRangeSet<C>
     implements Serializable {
 
   private static final ImmutableRangeSet<Comparable<?>> EMPTY =
@@ -67,7 +73,7 @@ public final class ImmutableRangeSet<C extends Comparable> extends AbstractRange
    *
    * @since 23.1
    */
-  public static <E extends Comparable<? super E>>
+  public static <E extends @Readonly Comparable<? super E>>
       Collector<Range<E>, ?, ImmutableRangeSet<E>> toImmutableRangeSet() {
     return CollectCollectors.toImmutableRangeSet();
   }
@@ -78,7 +84,7 @@ public final class ImmutableRangeSet<C extends Comparable> extends AbstractRange
    * <p><b>Performance note:</b> the instance returned is a singleton.
    */
   @SuppressWarnings("unchecked")
-  public static <C extends Comparable> ImmutableRangeSet<C> of() {
+  public static <C extends @Readonly Comparable> ImmutableRangeSet<C> of() {
     return (ImmutableRangeSet<C>) EMPTY;
   }
 
@@ -86,7 +92,7 @@ public static <C extends Comparable> ImmutableRangeSet<C> of() {
    * Returns an immutable range set containing the specified single range. If {@link Range#isEmpty()
    * range.isEmpty()}, this is equivalent to {@link ImmutableRangeSet#of()}.
    */
-  public static <C extends Comparable> ImmutableRangeSet<C> of(Range<C> range) {
+  public static <C extends @Readonly Comparable> ImmutableRangeSet<C> of(Range<C> range) {
     checkNotNull(range);
     if (range.isEmpty()) {
       return of();
@@ -99,12 +105,12 @@ public static <C extends Comparable> ImmutableRangeSet<C> of(Range<C> range) {
 
   /** Returns an immutable range set containing the single range {@link Range#all()}. */
   @SuppressWarnings("unchecked")
-  static <C extends Comparable> ImmutableRangeSet<C> all() {
+  static <C extends @Readonly Comparable> ImmutableRangeSet<C> all() {
     return (ImmutableRangeSet<C>) ALL;
   }
 
   /** Returns an immutable copy of the specified {@code RangeSet}. */
-  public static <C extends Comparable> ImmutableRangeSet<C> copyOf(RangeSet<C> rangeSet) {
+  public static <C extends @Readonly Comparable> ImmutableRangeSet<C> copyOf(RangeSet<C> rangeSet) {
     checkNotNull(rangeSet);
     if (rangeSet.isEmpty()) {
       return of();
@@ -129,7 +135,7 @@ public static <C extends Comparable> ImmutableRangeSet<C> copyOf(RangeSet<C> ran
    * @throws IllegalArgumentException if any ranges overlap or are empty
    * @since 21.0
    */
-  public static <C extends Comparable<?>> ImmutableRangeSet<C> copyOf(Iterable<Range<C>> ranges) {
+  public static <C extends @Readonly Comparable<?>> ImmutableRangeSet<C> copyOf(Iterable<Range<C>> ranges) {
     return new ImmutableRangeSet.Builder<C>().addAll(ranges).build();
   }
 
@@ -141,7 +147,7 @@ public static <C extends Comparable<?>> ImmutableRangeSet<C> copyOf(Iterable<Ran
    *
    * @since 21.0
    */
-  public static <C extends Comparable<?>> ImmutableRangeSet<C> unionOf(Iterable<Range<C>> ranges) {
+  public static <C extends @Readonly Comparable<?>> ImmutableRangeSet<C> unionOf(Iterable<Range<C>> ranges) {
     return copyOf(TreeRangeSet.create(ranges));
   }
 
@@ -316,6 +322,7 @@ public ImmutableSet<Range<C>> asDescendingSetOfRanges() {
 
   @LazyInit @CheckForNull private transient ImmutableRangeSet<C> complement;
 
+  @Immutable
   private final class ComplementRanges extends ImmutableList<Range<C>> {
     // True if the "positive" range set is empty or bounded below.
     private final boolean positiveBoundedBelow;
@@ -548,6 +555,7 @@ public ImmutableSortedSet<C> asSet(DiscreteDomain<C> domain) {
     return new AsSet(domain);
   }
 
+  @Immutable
   private final class AsSet extends ImmutableSortedSet<C> {
     private final DiscreteDomain<C> domain;
 
@@ -697,7 +705,8 @@ Object writeReplace() {
     }
   }
 
-  private static class AsSetSerializedForm<C extends Comparable> implements Serializable {
+  @Immutable
+  private static class AsSetSerializedForm<C extends @Readonly Comparable> implements Serializable {
     private final ImmutableList<Range<C>> ranges;
     private final DiscreteDomain<C> domain;
 
@@ -722,7 +731,7 @@ boolean isPartialView() {
   }
 
   /** Returns a new builder for an immutable range set. */
-  public static <C extends Comparable<?>> Builder<C> builder() {
+  public static <C extends @Readonly Comparable<?>> Builder<C> builder() {
     return new Builder<C>();
   }
 
@@ -731,7 +740,8 @@ public static <C extends Comparable<?>> Builder<C> builder() {
    *
    * @since 14.0
    */
-  public static class Builder<C extends Comparable<?>> {
+  @Mutable
+  public static class Builder<C extends @Readonly Comparable<?>> {
     private final List<Range<C>> ranges;
 
     public Builder() {
@@ -823,14 +833,15 @@ public ImmutableRangeSet<C> build() {
     }
   }
 
-  private static final class SerializedForm<C extends Comparable> implements Serializable {
+  @Immutable
+  private static final class SerializedForm<C extends @Readonly Comparable> implements Serializable {
     private final ImmutableList<Range<C>> ranges;
 
     SerializedForm(ImmutableList<Range<C>> ranges) {
       this.ranges = ranges;
     }
 
-    Object readResolve() {
+    @Immutable Object readResolve() {
       if (ranges.isEmpty()) {
         return of();
       } else if (ranges.equals(ImmutableList.of(Range.all()))) {
@@ -841,7 +852,7 @@ Object readResolve() {
     }
   }
 
-  Object writeReplace() {
+  @Immutable Object writeReplace() {
     return new SerializedForm<C>(ranges);
   }
 }
diff --git a/guava/src/com/google/common/collect/ImmutableSet.java b/guava/src/com/google/common/collect/ImmutableSet.java
index ad804eea3b61..0c72c8ced6ad 100644
--- a/guava/src/com/google/common/collect/ImmutableSet.java
+++ b/guava/src/com/google/common/collect/ImmutableSet.java
@@ -44,6 +44,10 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -58,6 +62,7 @@
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // we're overriding default serialization
 @ElementTypesAreNonnullByDefault
+@Immutable
 public abstract class ImmutableSet<E> extends ImmutableCollection<E> implements Set<E> {
   static final int SPLITERATOR_CHARACTERISTICS =
       ImmutableCollection.SPLITERATOR_CHARACTERISTICS | Spliterator.DISTINCT;
@@ -144,7 +149,7 @@ public static <E> ImmutableSet<E> of(E e1, E e2, E e3, E e4, E e5, E e6, E... ot
     checkArgument(
         others.length <= Integer.MAX_VALUE - 6, "the total number of elements must fit in an int");
     final int paramCount = 6;
-    Object[] elements = new Object[paramCount + others.length];
+    @Readonly Object @Mutable [] elements = new Object @Mutable [paramCount + others.length];
     elements[0] = e1;
     elements[1] = e2;
     elements[2] = e3;
@@ -170,7 +175,7 @@ public static <E> ImmutableSet<E> of(E e1, E e2, E e3, E e4, E e5, E e6, E... ot
    *
    * @throws NullPointerException if any of the first {@code n} elements of {@code elements} is null
    */
-  private static <E> ImmutableSet<E> constructUnknownDuplication(int n, Object... elements) {
+  private static <E> ImmutableSet<E> constructUnknownDuplication(int n, @Readonly Object... elements) {
     // Guess the size is "halfway between" all duplicates and no duplicates, on a log scale.
     return construct(
         n,
@@ -194,7 +199,7 @@ private static <E> ImmutableSet<E> constructUnknownDuplication(int n, Object...
    *
    * @throws NullPointerException if any of the first {@code n} elements of {@code elements} is null
    */
-  private static <E> ImmutableSet<E> construct(int n, int expectedSize, Object... elements) {
+  private static <E> ImmutableSet<E> construct(int n, int expectedSize, @Readonly Object @Readonly ... elements) {
     switch (n) {
       case 0:
         return of();
@@ -319,7 +324,7 @@ boolean isHashCodeFast() {
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull @UnknownSignedness Object object) {
+  public boolean equals(@CheckForNull @UnknownSignedness @Readonly Object object) {
     if (object == this) {
       return true;
     }
@@ -344,8 +349,9 @@ public int hashCode(@UnknownSignedness ImmutableSet<E> this) {
   public abstract UnmodifiableIterator<E> iterator();
 
   @GwtCompatible
+  @Immutable
   abstract static class CachingAsList<E> extends ImmutableSet<E> {
-    @LazyInit @RetainedWith @CheckForNull private transient ImmutableList<E> asList;
+    @LazyInit @RetainedWith @CheckForNull private transient @Assignable ImmutableList<E> asList;
 
     @Override
     public ImmutableList<E> asList() {
@@ -362,6 +368,7 @@ ImmutableList<E> createAsList() {
     }
   }
 
+  @Immutable
   abstract static class Indexed<E> extends CachingAsList<E> {
     abstract E get(int index);
 
@@ -475,13 +482,13 @@ public static <E> Builder<E> builderWithExpectedSize(int expectedSize) {
    *
    * @since 2.0
    */
-  public static class Builder<E> extends ImmutableCollection.Builder<E> {
+  public static @Mutable class Builder<E> extends ImmutableCollection.Builder<E> {
     /*
      * `impl` is null only for instances of the subclass, ImmutableSortedSet.Builder. That subclass
      * overrides all the methods that access it here. Thus, all the methods here can safely assume
      * that this field is non-null.
      */
-    @CheckForNull private SetBuilderImpl<E> impl;
+    @CheckForNull private @Mutable SetBuilderImpl<E> impl;
     boolean forceCopy;
 
     public Builder() {
@@ -583,7 +590,7 @@ public ImmutableSet<E> build() {
   }
 
   /** Swappable internal implementation of an ImmutableSet.Builder. */
-  private abstract static class SetBuilderImpl<E> {
+  private abstract static @Mutable class SetBuilderImpl<E> {
     // The first `distinct` elements are non-null.
     // Since we can never access null elements, we don't mark this nullable.
     E[] dedupedElements;
@@ -591,7 +598,7 @@ private abstract static class SetBuilderImpl<E> {
 
     @SuppressWarnings("unchecked")
     SetBuilderImpl(int expectedCapacity) {
-      this.dedupedElements = (E[]) new Object[expectedCapacity];
+      this.dedupedElements = (E @Mutable []) new Object[expectedCapacity];
       this.distinct = 0;
     }
 
@@ -655,7 +662,7 @@ SetBuilderImpl<E> review() {
     abstract ImmutableSet<E> build();
   }
 
-  private static final class EmptySetBuilderImpl<E> extends SetBuilderImpl<E> {
+  private static final @Mutable class EmptySetBuilderImpl<E> extends SetBuilderImpl<E> {
     private static final EmptySetBuilderImpl<Object> INSTANCE = new EmptySetBuilderImpl<>();
 
     @SuppressWarnings("unchecked")
@@ -724,9 +731,9 @@ static int chooseTableSize(int setSize) {
    * <p>This implementation attempts to detect hash flooding, and if it's identified, falls back to
    * JdkBackedSetBuilderImpl.
    */
-  private static final class RegularSetBuilderImpl<E> extends SetBuilderImpl<E> {
+  private static final @Mutable class RegularSetBuilderImpl<E> extends SetBuilderImpl<E> {
     // null until at least two elements are present
-    private @Nullable Object @Nullable [] hashTable;
+    private @Nullable @Readonly Object @Nullable [] hashTable;
     private int maxRunBeforeFallback;
     private int expandTableThreshold;
     private int hashCode;
@@ -821,7 +828,7 @@ ImmutableSet<E> build() {
            * populated.
            */
           @SuppressWarnings("nullness")
-          Object[] elements =
+          @Readonly Object[] elements =
               (distinct == dedupedElements.length)
                   ? dedupedElements
                   : Arrays.copyOf(dedupedElements, distinct);
@@ -831,8 +838,8 @@ ImmutableSet<E> build() {
     }
 
     /** Builds a new open-addressed hash table from the first n objects in elements. */
-    static @Nullable Object[] rebuildHashTable(int newTableSize, Object[] elements, int n) {
-      @Nullable Object[] hashTable = new @Nullable Object[newTableSize];
+    static @Nullable Object @Mutable [] rebuildHashTable(int newTableSize, Object[] elements, int n) {
+      @Nullable Object [] hashTable = new @Nullable Object @Mutable [newTableSize];
       int mask = hashTable.length - 1;
       for (int i = 0; i < n; i++) {
         // requireNonNull is safe because we ensure that the first n elements have been populated.
@@ -892,7 +899,7 @@ void ensureTableCapacity(int minCapacity) {
      * <p>This method may return {@code true} even on truly random input, but {@code
      * ImmutableSetTest} tests that the probability of that is low.
      */
-    static boolean hashFloodingDetected(@Nullable Object[] hashTable) {
+    static boolean hashFloodingDetected(@Nullable Object @Mutable [] hashTable) {
       int maxRunBeforeFallback = maxRunBeforeFallback(hashTable.length);
       int mask = hashTable.length - 1;
 
@@ -943,8 +950,8 @@ static int maxRunBeforeFallback(int tableSize) {
   /**
    * SetBuilderImpl version that uses a JDK HashSet, which has built in hash flooding protection.
    */
-  private static final class JdkBackedSetBuilderImpl<E> extends SetBuilderImpl<E> {
-    private final Set<Object> delegate;
+  private static final @Mutable class JdkBackedSetBuilderImpl<E> extends SetBuilderImpl<E> {
+    private final Set<@Readonly Object> delegate;
 
     JdkBackedSetBuilderImpl(SetBuilderImpl<E> toCopy) {
       super(toCopy); // initializes dedupedElements and distinct
diff --git a/guava/src/com/google/common/collect/ImmutableSetMultimap.java b/guava/src/com/google/common/collect/ImmutableSetMultimap.java
index 9cf1ee0b5c16..b0332273876a 100644
--- a/guava/src/com/google/common/collect/ImmutableSetMultimap.java
+++ b/guava/src/com/google/common/collect/ImmutableSetMultimap.java
@@ -42,6 +42,9 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -63,7 +66,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public class ImmutableSetMultimap<K, V> extends ImmutableMultimap<K, V>
+@Immutable
+public class ImmutableSetMultimap<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableMultimap<K, V>
     implements SetMultimap<K, V> {
   /**
    * Returns a {@link Collector} that accumulates elements into an {@code ImmutableSetMultimap}
@@ -93,7 +97,7 @@ public class ImmutableSetMultimap<K, V> extends ImmutableMultimap<K, V>
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable Object, K extends @Immutable Object, V extends @Immutable Object>
       Collector<T, ?, ImmutableSetMultimap<K, V>> toImmutableSetMultimap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -140,7 +144,7 @@ public class ImmutableSetMultimap<K, V> extends ImmutableMultimap<K, V>
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable Object, K extends @Immutable Object, V extends @Immutable Object>
       Collector<T, ?, ImmutableSetMultimap<K, V>> flatteningToImmutableSetMultimap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends Stream<? extends V>> valuesFunction) {
@@ -154,12 +158,12 @@ public class ImmutableSetMultimap<K, V> extends ImmutableMultimap<K, V>
    */
   // Casting is safe because the multimap will never hold any elements.
   @SuppressWarnings("unchecked")
-  public static <K, V> ImmutableSetMultimap<K, V> of() {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableSetMultimap<K, V> of() {
     return (ImmutableSetMultimap<K, V>) EmptyImmutableSetMultimap.INSTANCE;
   }
 
   /** Returns an immutable multimap containing a single entry. */
-  public static <K, V> ImmutableSetMultimap<K, V> of(K k1, V v1) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableSetMultimap<K, V> of(K k1, V v1) {
     ImmutableSetMultimap.Builder<K, V> builder = ImmutableSetMultimap.builder();
     builder.put(k1, v1);
     return builder.build();
@@ -169,7 +173,7 @@ public static <K, V> ImmutableSetMultimap<K, V> of(K k1, V v1) {
    * Returns an immutable multimap containing the given entries, in order. Repeated occurrences of
    * an entry (according to {@link Object#equals}) after the first are ignored.
    */
-  public static <K, V> ImmutableSetMultimap<K, V> of(K k1, V v1, K k2, V v2) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableSetMultimap<K, V> of(K k1, V v1, K k2, V v2) {
     ImmutableSetMultimap.Builder<K, V> builder = ImmutableSetMultimap.builder();
     builder.put(k1, v1);
     builder.put(k2, v2);
@@ -180,7 +184,7 @@ public static <K, V> ImmutableSetMultimap<K, V> of(K k1, V v1, K k2, V v2) {
    * Returns an immutable multimap containing the given entries, in order. Repeated occurrences of
    * an entry (according to {@link Object#equals}) after the first are ignored.
    */
-  public static <K, V> ImmutableSetMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableSetMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
     ImmutableSetMultimap.Builder<K, V> builder = ImmutableSetMultimap.builder();
     builder.put(k1, v1);
     builder.put(k2, v2);
@@ -192,7 +196,7 @@ public static <K, V> ImmutableSetMultimap<K, V> of(K k1, V v1, K k2, V v2, K k3,
    * Returns an immutable multimap containing the given entries, in order. Repeated occurrences of
    * an entry (according to {@link Object#equals}) after the first are ignored.
    */
-  public static <K, V> ImmutableSetMultimap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableSetMultimap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
     ImmutableSetMultimap.Builder<K, V> builder = ImmutableSetMultimap.builder();
     builder.put(k1, v1);
@@ -206,7 +210,7 @@ public static <K, V> ImmutableSetMultimap<K, V> of(
    * Returns an immutable multimap containing the given entries, in order. Repeated occurrences of
    * an entry (according to {@link Object#equals}) after the first are ignored.
    */
-  public static <K, V> ImmutableSetMultimap<K, V> of(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableSetMultimap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5) {
     ImmutableSetMultimap.Builder<K, V> builder = ImmutableSetMultimap.builder();
     builder.put(k1, v1);
@@ -220,7 +224,7 @@ public static <K, V> ImmutableSetMultimap<K, V> of(
   // looking for of() with > 5 entries? Use the builder instead.
 
   /** Returns a new {@link Builder}. */
-  public static <K, V> Builder<K, V> builder() {
+  public static <K extends @Immutable Object, V extends @Immutable Object> Builder<K, V> builder() {
     return new Builder<>();
   }
 
@@ -243,7 +247,7 @@ public static <K, V> Builder<K, V> builder() {
    *
    * @since 2.0
    */
-  public static final class Builder<K, V> extends ImmutableMultimap.Builder<K, V> {
+  public static final @Mutable class Builder<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableMultimap.Builder<K, V> {
     /**
      * Creates a new builder. The returned builder is equivalent to the builder generated by {@link
      * ImmutableSetMultimap#builder}.
@@ -373,12 +377,12 @@ public ImmutableSetMultimap<K, V> build() {
    *
    * @throws NullPointerException if any key or value in {@code multimap} is null
    */
-  public static <K, V> ImmutableSetMultimap<K, V> copyOf(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableSetMultimap<K, V> copyOf(
       Multimap<? extends K, ? extends V> multimap) {
     return copyOf(multimap, null);
   }
 
-  private static <K, V> ImmutableSetMultimap<K, V> copyOf(
+  private static <K extends @Immutable Object, V extends @Immutable Object> ImmutableSetMultimap<K, V> copyOf(
       Multimap<? extends K, ? extends V> multimap,
       @CheckForNull Comparator<? super V> valueComparator) {
     checkNotNull(multimap); // eager for GWT
@@ -407,13 +411,13 @@ private static <K, V> ImmutableSetMultimap<K, V> copyOf(
    * @since 19.0
    */
   @Beta
-  public static <K, V> ImmutableSetMultimap<K, V> copyOf(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableSetMultimap<K, V> copyOf(
       Iterable<? extends Entry<? extends K, ? extends V>> entries) {
     return new Builder<K, V>().putAll(entries).build();
   }
 
   /** Creates an ImmutableSetMultimap from an asMap.entrySet. */
-  static <K, V> ImmutableSetMultimap<K, V> fromMapEntries(
+  static <K extends @Immutable Object, V extends @Immutable Object> ImmutableSetMultimap<K, V> fromMapEntries(
       Collection<? extends Map.Entry<? extends K, ? extends Collection<? extends V>>> mapEntries,
       @CheckForNull Comparator<? super V> valueComparator) {
     if (mapEntries.isEmpty()) {
@@ -464,7 +468,7 @@ public ImmutableSet<V> get(K key) {
     return MoreObjects.firstNonNull(set, emptySet);
   }
 
-  @LazyInit @RetainedWith @CheckForNull private transient ImmutableSetMultimap<V, K> inverse;
+  @LazyInit @RetainedWith @CheckForNull private transient @Assignable ImmutableSetMultimap<V, K> inverse;
 
   /**
    * {@inheritDoc}
@@ -517,7 +521,7 @@ public final ImmutableSet<V> replaceValues(K key, Iterable<? extends V> values)
     throw new UnsupportedOperationException();
   }
 
-  @LazyInit @RetainedWith @CheckForNull private transient ImmutableSet<Entry<K, V>> entries;
+  @LazyInit @RetainedWith @CheckForNull private transient @Assignable ImmutableSet<Entry<K, V>> entries;
 
   /**
    * Returns an immutable collection of all key-value pairs in the multimap. Its iterator traverses
@@ -530,7 +534,8 @@ public ImmutableSet<Entry<K, V>> entries() {
     return result == null ? (entries = new EntrySet<>(this)) : result;
   }
 
-  private static final class EntrySet<K, V> extends ImmutableSet<Entry<K, V>> {
+  @Immutable
+  private static final class EntrySet<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableSet<Entry<K, V>> {
     @Weak private final transient ImmutableSetMultimap<K, V> multimap;
 
     EntrySet(ImmutableSetMultimap<K, V> multimap) {
@@ -616,7 +621,7 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
     if (keyCount < 0) {
       throw new InvalidObjectException("Invalid key count " + keyCount);
     }
-    ImmutableMap.Builder<Object, ImmutableSet<Object>> builder = ImmutableMap.builder();
+    ImmutableMap.Builder<@Immutable Object, ImmutableSet<Object>> builder = ImmutableMap.builder();
     int tmpSize = 0;
 
     for (int i = 0; i < keyCount; i++) {
@@ -638,7 +643,7 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
       tmpSize += valueCount;
     }
 
-    ImmutableMap<Object, ImmutableSet<Object>> tmpMap;
+    ImmutableMap<@Immutable Object, ImmutableSet<Object>> tmpMap;
     try {
       tmpMap = builder.buildOrThrow();
     } catch (IllegalArgumentException e) {
diff --git a/guava/src/com/google/common/collect/ImmutableSortedAsList.java b/guava/src/com/google/common/collect/ImmutableSortedAsList.java
index 19d6908c5dfb..69c22a5dc4e0 100644
--- a/guava/src/com/google/common/collect/ImmutableSortedAsList.java
+++ b/guava/src/com/google/common/collect/ImmutableSortedAsList.java
@@ -19,7 +19,9 @@
 import java.util.Comparator;
 import java.util.Spliterator;
 import javax.annotation.CheckForNull;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * List returned by {@code ImmutableSortedSet.asList()} when the set isn't empty.
@@ -27,9 +29,11 @@
  * @author Jared Levy
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
 @SuppressWarnings("serial")
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class ImmutableSortedAsList<E> extends RegularImmutableAsList<E>
     implements SortedIterable<E> {
   ImmutableSortedAsList(ImmutableSortedSet<E> backingSet, ImmutableList<E> backingList) {
diff --git a/guava/src/com/google/common/collect/ImmutableSortedMap.java b/guava/src/com/google/common/collect/ImmutableSortedMap.java
index adc7e11deedd..18231ffd870c 100644
--- a/guava/src/com/google/common/collect/ImmutableSortedMap.java
+++ b/guava/src/com/google/common/collect/ImmutableSortedMap.java
@@ -44,6 +44,9 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -66,10 +69,11 @@
  * @author Louis Wasserman
  * @since 2.0 (implements {@code NavigableMap} since 12.0)
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class ImmutableSortedMap<K, V> extends ImmutableSortedMapFauxverideShim<K, V>
+@Immutable
+public final class ImmutableSortedMap<K extends @Immutable Object, V> extends ImmutableSortedMapFauxverideShim<K, V>
     implements NavigableMap<K, V> {
   /**
    * Returns a {@link Collector} that accumulates elements into an {@code ImmutableSortedMap} whose
@@ -83,7 +87,7 @@ public final class ImmutableSortedMap<K, V> extends ImmutableSortedMapFauxveride
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableSortedMap<K, V>> toImmutableSortedMap(
           Comparator<? super K> comparator,
           Function<? super T, ? extends K> keyFunction,
@@ -102,7 +106,7 @@ public final class ImmutableSortedMap<K, V> extends ImmutableSortedMapFauxveride
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableSortedMap<K, V>> toImmutableSortedMap(
           Comparator<? super K> comparator,
           Function<? super T, ? extends K> keyFunction,
@@ -116,13 +120,13 @@ public final class ImmutableSortedMap<K, V> extends ImmutableSortedMapFauxveride
    * TODO(kevinb): Confirm that ImmutableSortedMap is faster to construct and
    * uses less memory than TreeMap; then say so in the class Javadoc.
    */
-  private static final Comparator<Comparable> NATURAL_ORDER = Ordering.natural();
+  private static final Comparator<@Readonly Comparable> NATURAL_ORDER = Ordering.natural();
 
-  private static final ImmutableSortedMap<Comparable, Object> NATURAL_EMPTY_MAP =
+  private static final ImmutableSortedMap<@Immutable Comparable, @Readonly Object> NATURAL_EMPTY_MAP =
       new ImmutableSortedMap<>(
-          ImmutableSortedSet.emptySet(Ordering.natural()), ImmutableList.<Object>of());
+          ImmutableSortedSet.emptySet(Ordering.natural()), ImmutableList.<@Readonly Object>of());
 
-  static <K, V> ImmutableSortedMap<K, V> emptyMap(Comparator<? super K> comparator) {
+  static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> emptyMap(Comparator<? super K> comparator) {
     if (Ordering.natural().equals(comparator)) {
       return of();
     } else {
@@ -139,7 +143,7 @@ static <K, V> ImmutableSortedMap<K, V> emptyMap(Comparator<? super K> comparator
   @SuppressWarnings("unchecked")
   // unsafe, comparator() returns a comparator on the specified type
   // TODO(kevinb): evaluate whether or not of().comparator() should return null
-  public static <K, V> ImmutableSortedMap<K, V> of() {
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of() {
     return (ImmutableSortedMap<K, V>) NATURAL_EMPTY_MAP;
   }
 
@@ -149,7 +153,7 @@ public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(K
   }
 
   /** Returns an immutable map containing a single entry. */
-  private static <K, V> ImmutableSortedMap<K, V> of(Comparator<? super K> comparator, K k1, V v1) {
+  private static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(Comparator<? super K> comparator, K k1, V v1) {
     return new ImmutableSortedMap<>(
         new RegularImmutableSortedSet<K>(ImmutableList.of(k1), checkNotNull(comparator)),
         ImmutableList.of(v1));
@@ -174,7 +178,7 @@ public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
    * @throws IllegalArgumentException if any two keys are equal according to their natural ordering
    */
   @SuppressWarnings("unchecked")
-  public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3) {
     return fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3));
   }
@@ -186,7 +190,7 @@ public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
    * @throws IllegalArgumentException if any two keys are equal according to their natural ordering
    */
   @SuppressWarnings("unchecked")
-  public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
     return fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4));
   }
@@ -198,7 +202,7 @@ public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
    * @throws IllegalArgumentException if any two keys are equal according to their natural ordering
    */
   @SuppressWarnings("unchecked")
-  public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5) {
     return fromEntries(
         entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4), entryOf(k5, v5));
@@ -212,7 +216,7 @@ public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
    * @since 31.0
    */
   @SuppressWarnings("unchecked")
-  public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6) {
     return fromEntries(
         entryOf(k1, v1),
@@ -231,7 +235,7 @@ public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
    * @since 31.0
    */
   @SuppressWarnings("unchecked")
-  public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7) {
     return fromEntries(
         entryOf(k1, v1),
@@ -251,7 +255,7 @@ public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
    * @since 31.0
    */
   @SuppressWarnings("unchecked")
-  public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -287,7 +291,7 @@ public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
    * @since 31.0
    */
   @SuppressWarnings("unchecked")
-  public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -326,7 +330,7 @@ public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
    * @since 31.0
    */
   @SuppressWarnings("unchecked")
-  public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -375,7 +379,7 @@ public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(
    * @throws NullPointerException if any key or value in {@code map} is null
    * @throws IllegalArgumentException if any two keys are equal according to their natural ordering
    */
-  public static <K, V> ImmutableSortedMap<K, V> copyOf(Map<? extends K, ? extends V> map) {
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> copyOf(Map<? extends K, ? extends V> map) {
     // Hack around K not being a subtype of Comparable.
     // Unsafe, see ImmutableSortedSetFauxverideShim.
     @SuppressWarnings("unchecked")
@@ -394,7 +398,7 @@ public static <K, V> ImmutableSortedMap<K, V> copyOf(Map<? extends K, ? extends
    * @throws NullPointerException if any key or value in {@code map} is null
    * @throws IllegalArgumentException if any two keys are equal according to the comparator
    */
-  public static <K, V> ImmutableSortedMap<K, V> copyOf(
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> copyOf(
       Map<? extends K, ? extends V> map, Comparator<? super K> comparator) {
     return copyOfInternal(map, checkNotNull(comparator));
   }
@@ -411,7 +415,7 @@ public static <K, V> ImmutableSortedMap<K, V> copyOf(
    * @since 19.0
    */
   @Beta
-  public static <K, V> ImmutableSortedMap<K, V> copyOf(
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> copyOf(
       Iterable<? extends Entry<? extends K, ? extends V>> entries) {
     // Hack around K not being a subtype of Comparable.
     // Unsafe, see ImmutableSortedSetFauxverideShim.
@@ -429,7 +433,7 @@ public static <K, V> ImmutableSortedMap<K, V> copyOf(
    * @since 19.0
    */
   @Beta
-  public static <K, V> ImmutableSortedMap<K, V> copyOf(
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> copyOf(
       Iterable<? extends Entry<? extends K, ? extends V>> entries,
       Comparator<? super K> comparator) {
     return fromEntries(checkNotNull(comparator), false, entries);
@@ -446,7 +450,7 @@ public static <K, V> ImmutableSortedMap<K, V> copyOf(
    * @throws NullPointerException if any key or value in {@code map} is null
    */
   @SuppressWarnings("unchecked")
-  public static <K, V> ImmutableSortedMap<K, V> copyOfSorted(SortedMap<K, ? extends V> map) {
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> copyOfSorted(SortedMap<K, ? extends V> map) {
     Comparator<? super K> comparator = map.comparator();
     if (comparator == null) {
       // If map has a null comparator, the keys should have a natural ordering,
@@ -465,7 +469,7 @@ public static <K, V> ImmutableSortedMap<K, V> copyOfSorted(SortedMap<K, ? extend
     return fromEntries(comparator, true, map.entrySet());
   }
 
-  private static <K, V> ImmutableSortedMap<K, V> copyOfInternal(
+  private static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> copyOfInternal(
       Map<? extends K, ? extends V> map, Comparator<? super K> comparator) {
     boolean sameComparator = false;
     if (map instanceof SortedMap) {
@@ -487,8 +491,8 @@ private static <K, V> ImmutableSortedMap<K, V> copyOfInternal(
     return fromEntries(comparator, sameComparator, map.entrySet());
   }
 
-  private static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> fromEntries(
-      Entry<K, V>... entries) {
+  private static <K extends @Immutable Comparable<? super K>, V> ImmutableSortedMap<K, V> fromEntries(
+      @Immutable Entry<K, V>... entries) {
     return fromEntries(Ordering.natural(), false, entries, entries.length);
   }
 
@@ -496,7 +500,7 @@ private static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> fro
    * Accepts a collection of possibly-null entries. If {@code sameComparator}, then it is assumed
    * that they do not need to be sorted or checked for dupes.
    */
-  private static <K, V> ImmutableSortedMap<K, V> fromEntries(
+  private static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> fromEntries(
       Comparator<? super K> comparator,
       boolean sameComparator,
       Iterable<? extends Entry<? extends K, ? extends V>> entries) {
@@ -508,7 +512,7 @@ private static <K, V> ImmutableSortedMap<K, V> fromEntries(
     return fromEntries(comparator, sameComparator, entryArray, entryArray.length);
   }
 
-  private static <K, V> ImmutableSortedMap<K, V> fromEntries(
+  private static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> fromEntries(
       final Comparator<? super K> comparator,
       boolean sameComparator,
       @Nullable Entry<K, V>[] entryArray,
@@ -521,8 +525,8 @@ private static <K, V> ImmutableSortedMap<K, V> fromEntries(
         Entry<K, V> onlyEntry = requireNonNull(entryArray[0]);
         return of(comparator, onlyEntry.getKey(), onlyEntry.getValue());
       default:
-        Object[] keys = new Object[size];
-        Object[] values = new Object[size];
+        @Immutable Object[] keys = new Object[size];
+        @Readonly Object[] values = new Object[size];
         if (sameComparator) {
           // Need to check for nulls, but don't need to sort or validate.
           for (int i = 0; i < size; i++) {
@@ -592,7 +596,7 @@ public static <K extends Comparable<?>, V> Builder<K, V> naturalOrder() {
    *
    * @throws NullPointerException if {@code comparator} is null
    */
-  public static <K, V> Builder<K, V> orderedBy(Comparator<K> comparator) {
+  public static <K extends @Immutable Object, V> Builder<K, V> orderedBy(Comparator<K> comparator) {
     return new Builder<>(comparator);
   }
 
@@ -625,7 +629,7 @@ public static <K extends Comparable<?>, V> Builder<K, V> reverseOrder() {
    *
    * @since 2.0
    */
-  public static class Builder<K, V> extends ImmutableMap.Builder<K, V> {
+  public static @Mutable class Builder<K extends @Immutable Object, V> extends ImmutableMap.Builder<K, V> {
     private final Comparator<? super K> comparator;
 
     /**
@@ -823,6 +827,7 @@ boolean isPartialView() {
 
   @Override
   ImmutableSet<Entry<K, V>> createEntrySet() {
+    @Immutable
     class EntrySet extends ImmutableMapEntrySet<K, V> {
       @Override
       public UnmodifiableIterator<Entry<K, V>> iterator() {
@@ -1155,7 +1160,7 @@ public ImmutableSortedMap<K, V> descendingMap() {
    * are reconstructed using public factory methods. This ensures that the implementation types
    * remain as implementation details.
    */
-  private static class SerializedForm<K, V> extends ImmutableMap.SerializedForm<K, V> {
+  private static class SerializedForm<K extends @Immutable Object, V> extends ImmutableMap.SerializedForm<K, V> {
     private final Comparator<? super K> comparator;
 
     SerializedForm(ImmutableSortedMap<K, V> sortedMap) {
@@ -1181,5 +1186,5 @@ Object writeReplace() {
   private static final long serialVersionUID = 0;
 
 @Pure
-public boolean containsValue(@Nullable @UnknownSignedness Object arg0) { return super.containsValue(arg0); }
+public boolean containsValue(@Nullable @UnknownSignedness @Readonly Object arg0) { return super.containsValue(arg0); }
 }
diff --git a/guava/src/com/google/common/collect/ImmutableSortedMapFauxverideShim.java b/guava/src/com/google/common/collect/ImmutableSortedMapFauxverideShim.java
index 7b2e4d7552ec..c641064ca050 100644
--- a/guava/src/com/google/common/collect/ImmutableSortedMapFauxverideShim.java
+++ b/guava/src/com/google/common/collect/ImmutableSortedMapFauxverideShim.java
@@ -22,6 +22,9 @@
 import java.util.function.Function;
 import java.util.stream.Collector;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * "Overrides" the {@link ImmutableMap} static methods that lack {@link ImmutableSortedMap}
@@ -30,9 +33,11 @@
  *
  * @author Chris Povirk
  */
+@AnnotatedFor("pico")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-abstract class ImmutableSortedMapFauxverideShim<K, V> extends ImmutableMap<K, V> {
+@Immutable
+abstract class ImmutableSortedMapFauxverideShim<K extends @Immutable Object, V> extends ImmutableMap<K, V> {
   /**
    * Not supported. Use {@link ImmutableSortedMap#toImmutableSortedMap}, which offers better
    * type-safety, instead. This method exists only to hide {@link ImmutableMap#toImmutableMap} from
@@ -43,7 +48,7 @@ abstract class ImmutableSortedMapFauxverideShim<K, V> extends ImmutableMap<K, V>
    */
   @DoNotCall("Use toImmutableSortedMap")
   @Deprecated
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction) {
@@ -60,7 +65,7 @@ abstract class ImmutableSortedMapFauxverideShim<K, V> extends ImmutableMap<K, V>
    */
   @DoNotCall("Use toImmutableSortedMap")
   @Deprecated
-  public static <T extends @Nullable Object, K, V>
+  public static <T extends @Nullable @Readonly Object, K extends @Immutable Object, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableMap(
           Function<? super T, ? extends K> keyFunction,
           Function<? super T, ? extends V> valueFunction,
@@ -78,7 +83,7 @@ abstract class ImmutableSortedMapFauxverideShim<K, V> extends ImmutableMap<K, V>
    */
   @DoNotCall("Use naturalOrder")
   @Deprecated
-  public static <K, V> ImmutableSortedMap.Builder<K, V> builder() {
+  public static <K extends @Immutable Object, V> ImmutableSortedMap.Builder<K, V> builder() {
     throw new UnsupportedOperationException();
   }
 
@@ -90,7 +95,7 @@ public static <K, V> ImmutableSortedMap.Builder<K, V> builder() {
    */
   @DoNotCall("Use naturalOrder (which does not accept an expected size)")
   @Deprecated
-  public static <K, V> ImmutableSortedMap.Builder<K, V> builderWithExpectedSize(int expectedSize) {
+  public static <K extends @Immutable Object, V> ImmutableSortedMap.Builder<K, V> builderWithExpectedSize(int expectedSize) {
     throw new UnsupportedOperationException();
   }
 
@@ -105,7 +110,7 @@ public static <K, V> ImmutableSortedMap.Builder<K, V> builderWithExpectedSize(in
    */
   @DoNotCall("Pass a key of type Comparable")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> of(K k1, V v1) {
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(K k1, V v1) {
     throw new UnsupportedOperationException();
   }
 
@@ -120,7 +125,7 @@ public static <K, V> ImmutableSortedMap<K, V> of(K k1, V v1) {
    */
   @DoNotCall("Pass keys of type Comparable")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> of(K k1, V v1, K k2, V v2) {
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(K k1, V v1, K k2, V v2) {
     throw new UnsupportedOperationException();
   }
 
@@ -135,7 +140,7 @@ public static <K, V> ImmutableSortedMap<K, V> of(K k1, V v1, K k2, V v2) {
    */
   @DoNotCall("Pass keys of type Comparable")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3) {
     throw new UnsupportedOperationException();
   }
 
@@ -151,7 +156,7 @@ public static <K, V> ImmutableSortedMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V
    */
   @DoNotCall("Pass keys of type Comparable")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4) {
     throw new UnsupportedOperationException();
   }
 
@@ -167,7 +172,7 @@ public static <K, V> ImmutableSortedMap<K, V> of(K k1, V v1, K k2, V v2, K k3, V
    */
   @DoNotCall("Pass keys of type Comparable")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5) {
     throw new UnsupportedOperationException();
   }
@@ -184,7 +189,7 @@ public static <K, V> ImmutableSortedMap<K, V> of(
    */
   @DoNotCall("Pass keys of type Comparable")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6) {
     throw new UnsupportedOperationException();
   }
@@ -201,7 +206,7 @@ public static <K, V> ImmutableSortedMap<K, V> of(
    */
   @DoNotCall("Pass keys of type Comparable")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(
       K k1, V v1, K k2, V v2, K k3, V v3, K k4, V v4, K k5, V v5, K k6, V v6, K k7, V v7) {
     throw new UnsupportedOperationException();
   }
@@ -218,7 +223,7 @@ public static <K, V> ImmutableSortedMap<K, V> of(
    */
   @DoNotCall("Pass keys of type Comparable")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -250,7 +255,7 @@ public static <K, V> ImmutableSortedMap<K, V> of(
    */
   @DoNotCall("Pass keys of type Comparable")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -284,7 +289,7 @@ public static <K, V> ImmutableSortedMap<K, V> of(
    */
   @DoNotCall("Pass keys of type Comparable")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> of(
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> of(
       K k1,
       V v1,
       K k2,
@@ -315,7 +320,7 @@ public static <K, V> ImmutableSortedMap<K, V> of(
    */
   @DoNotCall("ImmutableSortedMap.ofEntries not currently available; use ImmutableSortedMap.copyOf")
   @Deprecated
-  public static <K, V> ImmutableSortedMap<K, V> ofEntries(
+  public static <K extends @Immutable Object, V> ImmutableSortedMap<K, V> ofEntries(
       Entry<? extends K, ? extends V>... entries) {
     throw new UnsupportedOperationException();
   }
diff --git a/guava/src/com/google/common/collect/ImmutableSortedMultiset.java b/guava/src/com/google/common/collect/ImmutableSortedMultiset.java
index 0638df04e09d..19ed06c7c5b0 100644
--- a/guava/src/com/google/common/collect/ImmutableSortedMultiset.java
+++ b/guava/src/com/google/common/collect/ImmutableSortedMultiset.java
@@ -33,6 +33,10 @@
 import java.util.stream.Collector;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A {@link SortedMultiset} whose contents will never change, with many other important properties
@@ -50,8 +54,10 @@
  * @author Louis Wasserman
  * @since 12.0
  */
+@AnnotatedFor("pico")
 @GwtIncompatible // hasn't been tested yet
 @ElementTypesAreNonnullByDefault
+@Immutable
 public abstract class ImmutableSortedMultiset<E> extends ImmutableSortedMultisetFauxverideShim<E>
     implements SortedMultiset<E> {
   // TODO(lowasser): GWT compatibility
@@ -81,7 +87,7 @@ public abstract class ImmutableSortedMultiset<E> extends ImmutableSortedMultiset
    *
    * @since 22.0
    */
-  public static <T extends @Nullable Object, E>
+  public static <T extends @Nullable @Readonly Object, E>
       Collector<T, ?, ImmutableSortedMultiset<E>> toImmutableSortedMultiset(
           Comparator<? super E> comparator,
           Function<? super T, ? extends E> elementFunction,
@@ -453,6 +459,7 @@ public static <E extends Comparable<?>> Builder<E> naturalOrder() {
    *
    * @since 12.0
    */
+  @Mutable
   public static class Builder<E> extends ImmutableMultiset.Builder<E> {
     /**
      * Creates a new builder. The returned builder is equivalent to the builder generated by {@link
diff --git a/guava/src/com/google/common/collect/ImmutableSortedMultisetFauxverideShim.java b/guava/src/com/google/common/collect/ImmutableSortedMultisetFauxverideShim.java
index 94a2f560da4b..ce19821835e3 100644
--- a/guava/src/com/google/common/collect/ImmutableSortedMultisetFauxverideShim.java
+++ b/guava/src/com/google/common/collect/ImmutableSortedMultisetFauxverideShim.java
@@ -20,6 +20,9 @@
 import java.util.function.ToIntFunction;
 import java.util.stream.Collector;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * "Overrides" the {@link ImmutableMultiset} static methods that lack {@link
@@ -38,8 +41,10 @@
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@Immutable
 abstract class ImmutableSortedMultisetFauxverideShim<E> extends ImmutableMultiset<E> {
   /**
    * Not supported. Use {@link ImmutableSortedMultiset#toImmutableSortedMultiset} instead. This
@@ -67,7 +72,7 @@ abstract class ImmutableSortedMultisetFauxverideShim<E> extends ImmutableMultise
    */
   @DoNotCall("Use toImmutableSortedMultiset.")
   @Deprecated
-  public static <T extends @Nullable Object, E>
+  public static <T extends @Nullable @Readonly Object, E>
       Collector<T, ?, ImmutableMultiset<E>> toImmutableMultiset(
           Function<? super T, ? extends E> elementFunction,
           ToIntFunction<? super T> countFunction) {
diff --git a/guava/src/com/google/common/collect/ImmutableSortedSet.java b/guava/src/com/google/common/collect/ImmutableSortedSet.java
index ab5f583e8238..1a1971d8a0b6 100644
--- a/guava/src/com/google/common/collect/ImmutableSortedSet.java
+++ b/guava/src/com/google/common/collect/ImmutableSortedSet.java
@@ -41,6 +41,9 @@
 import java.util.stream.Collector;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -63,10 +66,11 @@
  * @since 2.0 (implements {@code NavigableSet} since 12.0)
  */
 // TODO(benyu): benchmark and optimize all creation paths, which are a mess now
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // we're overriding default serialization
 @ElementTypesAreNonnullByDefault
+@Immutable
 public abstract class ImmutableSortedSet<E> extends ImmutableSortedSetFauxverideShim<E>
     implements NavigableSet<E>, SortedIterable<E> {
   static final int SPLITERATOR_CHARACTERISTICS =
@@ -435,7 +439,7 @@ public static <E extends Comparable<?>> Builder<E> naturalOrder() {
    *
    * @since 2.0
    */
-  public static final class Builder<E> extends ImmutableSet.Builder<E> {
+  public static final @Mutable class Builder<E> extends ImmutableSet.Builder<E> {
     private final Comparator<? super E> comparator;
     private E[] elements;
     private int n;
@@ -581,11 +585,11 @@ public ImmutableSortedSet<E> build() {
     }
   }
 
-  int unsafeCompare(@UnknownSignedness Object a, @CheckForNull @UnknownSignedness Object b) {
+  int unsafeCompare(@UnknownSignedness @Readonly Object a, @CheckForNull @UnknownSignedness @Readonly Object b) {
     return unsafeCompare(comparator, a, b);
   }
 
-  static int unsafeCompare(Comparator<?> comparator, @UnknownSignedness Object a, @CheckForNull @UnknownSignedness Object b) {
+  static int unsafeCompare(Comparator<?> comparator, @UnknownSignedness @Readonly Object a, @CheckForNull @UnknownSignedness @Readonly Object b) {
     // Pretend the comparator can compare anything. If it turns out it can't
     // compare a and b, we should get a CCE or NPE on the subsequent line. Only methods
     // that are spec'd to throw CCE and NPE should call this.
@@ -843,7 +847,7 @@ public SerializedForm(Comparator<? super E> comparator, Object[] elements) {
     }
 
     @SuppressWarnings("unchecked")
-    Object readResolve() {
+    @Immutable Object readResolve() {
       return new Builder<E>(comparator).add((E[]) elements).build();
     }
 
diff --git a/guava/src/com/google/common/collect/ImmutableSortedSetFauxverideShim.java b/guava/src/com/google/common/collect/ImmutableSortedSetFauxverideShim.java
index a5170e5bfd17..6432414fc4e9 100644
--- a/guava/src/com/google/common/collect/ImmutableSortedSetFauxverideShim.java
+++ b/guava/src/com/google/common/collect/ImmutableSortedSetFauxverideShim.java
@@ -19,6 +19,7 @@
 import com.google.common.annotations.GwtIncompatible;
 import com.google.errorprone.annotations.DoNotCall;
 import java.util.stream.Collector;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -38,9 +39,10 @@
  *
  * @author Chris Povirk
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@Immutable
 abstract class ImmutableSortedSetFauxverideShim<E> extends ImmutableSet.CachingAsList<E> {
   /**
    * Not supported. Use {@link ImmutableSortedSet#toImmutableSortedSet} instead. This method exists
diff --git a/guava/src/com/google/common/collect/ImmutableTable.java b/guava/src/com/google/common/collect/ImmutableTable.java
index 85f20642cb90..7f195bbacf7f 100644
--- a/guava/src/com/google/common/collect/ImmutableTable.java
+++ b/guava/src/com/google/common/collect/ImmutableTable.java
@@ -34,7 +34,11 @@
 import java.util.stream.Collector;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A {@link Table} whose contents will never change, with many other important properties detailed
@@ -48,7 +52,9 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class ImmutableTable<R, C, V> extends AbstractTable<R, C, V>
+@AnnotatedFor("pico")
+@Immutable
+public abstract class ImmutableTable<R extends @Immutable Object, C extends @Immutable Object, V> extends AbstractTable<R, C, V>
     implements Serializable {
 
   /**
@@ -61,7 +67,7 @@ public abstract class ImmutableTable<R, C, V> extends AbstractTable<R, C, V>
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, R, C, V>
+  public static <T extends @Nullable @Readonly Object, R extends @Immutable Object, C extends @Immutable Object, V>
       Collector<T, ?, ImmutableTable<R, C, V>> toImmutableTable(
           Function<? super T, ? extends R> rowFunction,
           Function<? super T, ? extends C> columnFunction,
@@ -80,7 +86,7 @@ public abstract class ImmutableTable<R, C, V> extends AbstractTable<R, C, V>
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, R, C, V>
+  public static <T extends @Nullable @Readonly Object, R extends @Immutable Object, C extends @Immutable Object, V>
       Collector<T, ?, ImmutableTable<R, C, V>> toImmutableTable(
           Function<? super T, ? extends R> rowFunction,
           Function<? super T, ? extends C> columnFunction,
@@ -96,12 +102,12 @@ public abstract class ImmutableTable<R, C, V> extends AbstractTable<R, C, V>
    * <p><b>Performance note:</b> the instance returned is a singleton.
    */
   @SuppressWarnings("unchecked")
-  public static <R, C, V> ImmutableTable<R, C, V> of() {
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> ImmutableTable<R, C, V> of() {
     return (ImmutableTable<R, C, V>) SparseImmutableTable.EMPTY;
   }
 
   /** Returns an immutable table containing a single cell. */
-  public static <R, C, V> ImmutableTable<R, C, V> of(R rowKey, C columnKey, V value) {
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> ImmutableTable<R, C, V> of(R rowKey, C columnKey, V value) {
     return new SingletonImmutableTable<>(rowKey, columnKey, value);
   }
 
@@ -118,7 +124,7 @@ public static <R, C, V> ImmutableTable<R, C, V> of(R rowKey, C columnKey, V valu
    * safe to do so. The exact circumstances under which a copy will or will not be performed are
    * undocumented and subject to change.
    */
-  public static <R, C, V> ImmutableTable<R, C, V> copyOf(
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> ImmutableTable<R, C, V> copyOf(
       Table<? extends R, ? extends C, ? extends V> table) {
     if (table instanceof ImmutableTable) {
       @SuppressWarnings("unchecked")
@@ -129,7 +135,7 @@ public static <R, C, V> ImmutableTable<R, C, V> copyOf(
     }
   }
 
-  static <R, C, V> ImmutableTable<R, C, V> copyOf(
+  static <R extends @Immutable Object, C extends @Immutable Object, V> ImmutableTable<R, C, V> copyOf(
       Iterable<? extends Cell<? extends R, ? extends C, ? extends V>> cells) {
     ImmutableTable.Builder<R, C, V> builder = ImmutableTable.builder();
     for (Cell<? extends R, ? extends C, ? extends V> cell : cells) {
@@ -142,7 +148,7 @@ static <R, C, V> ImmutableTable<R, C, V> copyOf(
    * Returns a new builder. The generated builder is equivalent to the builder created by the {@link
    * Builder#Builder() ImmutableTable.Builder()} constructor.
    */
-  public static <R, C, V> Builder<R, C, V> builder() {
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> Builder<R, C, V> builder() {
     return new Builder<>();
   }
 
@@ -150,7 +156,7 @@ public static <R, C, V> Builder<R, C, V> builder() {
    * Verifies that {@code rowKey}, {@code columnKey} and {@code value} are non-null, and returns a
    * new entry with those values.
    */
-  static <R, C, V> Cell<R, C, V> cellOf(R rowKey, C columnKey, V value) {
+  static <R extends @Immutable Object, C extends @Immutable Object, V> Cell<R, C, V> cellOf(R rowKey, C columnKey, V value) {
     return Tables.immutableCell(
         checkNotNull(rowKey, "rowKey"),
         checkNotNull(columnKey, "columnKey"),
@@ -184,7 +190,7 @@ static <R, C, V> Cell<R, C, V> cellOf(R rowKey, C columnKey, V value) {
    * @since 11.0
    */
   @DoNotMock
-  public static final class Builder<R, C, V> {
+  public static final @Mutable class Builder<R extends @Immutable Object, C extends @Immutable Object, V> {
     private final List<Cell<R, C, V>> cells = Lists.newArrayList();
     @CheckForNull private Comparator<? super R> rowComparator;
     @CheckForNull private Comparator<? super C> columnComparator;
@@ -377,12 +383,12 @@ public ImmutableSet<R> rowKeySet() {
   public abstract ImmutableMap<R, Map<C, V>> rowMap();
 
   @Override
-  public boolean contains(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+  public boolean contains(@CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
     return get(rowKey, columnKey) != null;
   }
 
   @Override
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@CheckForNull @UnknownSignedness @Readonly Object value) {
     return values().contains(value);
   }
 
@@ -449,6 +455,7 @@ public final V remove(@CheckForNull Object rowKey, @CheckForNull Object columnKe
    * Serialized type for all ImmutableTable instances. It captures the logical contents and
    * preserves iteration order of all views.
    */
+  @Immutable
   static final class SerializedForm implements Serializable {
     private final Object[] rowKeys;
     private final Object[] columnKeys;
@@ -480,14 +487,14 @@ static SerializedForm create(
           cellColumnIndices);
     }
 
-    Object readResolve() {
+    @Immutable Object readResolve() {
       if (cellValues.length == 0) {
         return of();
       }
       if (cellValues.length == 1) {
         return of(rowKeys[0], columnKeys[0], cellValues[0]);
       }
-      ImmutableList.Builder<Cell<Object, Object, Object>> cellListBuilder =
+      ImmutableList.Builder<Cell<@Immutable Object, @Immutable Object, @Readonly Object>> cellListBuilder =
           new ImmutableList.Builder<>(cellValues.length);
       for (int i = 0; i < cellValues.length; i++) {
         cellListBuilder.add(
diff --git a/guava/src/com/google/common/collect/IndexedImmutableSet.java b/guava/src/com/google/common/collect/IndexedImmutableSet.java
index 05bd8b127d59..161c1eb64e44 100644
--- a/guava/src/com/google/common/collect/IndexedImmutableSet.java
+++ b/guava/src/com/google/common/collect/IndexedImmutableSet.java
@@ -24,9 +24,14 @@
 import java.util.function.Consumer;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@Immutable
 abstract class IndexedImmutableSet<E> extends ImmutableSet.CachingAsList<E> {
   abstract E get(int index);
 
@@ -51,7 +56,7 @@ public void forEach(Consumer<? super E> consumer) {
 
   @Override
   @GwtIncompatible
-  int copyIntoArray(@Nullable Object[] dst, int offset) {
+  int copyIntoArray(@Nullable @Readonly Object[] dst, int offset) {
     return asList().copyIntoArray(dst, offset);
   }
 
diff --git a/guava/src/com/google/common/collect/Interners.java b/guava/src/com/google/common/collect/Interners.java
index cb44bc1990a5..a0a532ba3637 100644
--- a/guava/src/com/google/common/collect/Interners.java
+++ b/guava/src/com/google/common/collect/Interners.java
@@ -23,6 +23,7 @@
 import com.google.common.collect.MapMaker.Dummy;
 import com.google.common.collect.MapMakerInternalMap.InternalEntry;
 import javax.annotation.CheckForNull;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -112,7 +113,7 @@ public static <E> Interner<E> newWeakInterner() {
   }
 
   @VisibleForTesting
-  static final class InternerImpl<E> implements Interner<E> {
+  static final class InternerImpl<E extends @Immutable Object> implements Interner<E> {
     // MapMaker is our friend, we know about this type
     @VisibleForTesting final MapMakerInternalMap<E, Dummy, ?, ?> map;
 
diff --git a/guava/src/com/google/common/collect/Iterables.java b/guava/src/com/google/common/collect/Iterables.java
index 2ec4c614a5ce..d2fb9a35ba91 100644
--- a/guava/src/com/google/common/collect/Iterables.java
+++ b/guava/src/com/google/common/collect/Iterables.java
@@ -42,6 +42,8 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -74,7 +76,7 @@ public final class Iterables {
   private Iterables() {}
 
   /** Returns an unmodifiable view of {@code iterable}. */
-  public static <T extends @Nullable Object> Iterable<T> unmodifiableIterable(
+  public static <T extends @Nullable @Readonly Object> Iterable<T> unmodifiableIterable(
       final Iterable<? extends T> iterable) {
     checkNotNull(iterable);
     if (iterable instanceof UnmodifiableIterable || iterable instanceof ImmutableCollection) {
@@ -96,7 +98,7 @@ public static <E> Iterable<E> unmodifiableIterable(ImmutableCollection<E> iterab
     return checkNotNull(iterable);
   }
 
-  private static final class UnmodifiableIterable<T extends @Nullable Object>
+  private static final class UnmodifiableIterable<T extends @Nullable @Readonly Object>
       extends FluentIterable<T> {
     private final Iterable<? extends T> iterable;
 
@@ -143,7 +145,7 @@ public static int size(Iterable<?> iterable) {
    */
   @Pure
   public static boolean contains(
-      Iterable<? extends @Nullable Object> iterable, @CheckForNull Object element) {
+      Iterable<? extends @Nullable @Readonly Object> iterable, @CheckForNull Object element) {
     if (iterable instanceof Collection) {
       Collection<?> collection = (Collection<?>) iterable;
       return Collections2.safeContains(collection, element);
@@ -162,7 +164,7 @@ public static boolean contains(
    * @return {@code true} if any element was removed from {@code iterable}
    */
   @CanIgnoreReturnValue
-  public static boolean removeAll(Iterable<?> removeFrom, Collection<?> elementsToRemove) {
+  public static boolean removeAll(Iterable<?> removeFrom, @Mutable Collection<?> elementsToRemove) {
     return (removeFrom instanceof Collection)
         ? ((Collection<?>) removeFrom).removeAll(checkNotNull(elementsToRemove))
         : Iterators.removeAll(removeFrom.iterator(), elementsToRemove);
@@ -202,7 +204,7 @@ public static boolean retainAll(Iterable<?> removeFrom, Collection<?> elementsTo
    * @since 2.0
    */
   @CanIgnoreReturnValue
-  public static <T extends @Nullable Object> boolean removeIf(
+  public static <T extends @Nullable @Readonly Object> boolean removeIf(
       Iterable<T> removeFrom, Predicate<? super T> predicate) {
     if (removeFrom instanceof Collection) {
       return ((Collection<T>) removeFrom).removeIf(predicate);
@@ -212,7 +214,7 @@ public static boolean retainAll(Iterable<?> removeFrom, Collection<?> elementsTo
 
   /** Removes and returns the first matching element, or returns {@code null} if there is none. */
   @CheckForNull
-  static <T extends @Nullable Object> T removeFirstMatching(
+  static <T extends @Nullable @Readonly Object> T removeFirstMatching(
       Iterable<T> removeFrom, Predicate<? super T> predicate) {
     checkNotNull(predicate);
     Iterator<T> iterator = removeFrom.iterator();
@@ -265,7 +267,7 @@ public static String toString(Iterable<?> iterable) {
    * @throws IllegalArgumentException if the iterable contains multiple elements
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T getOnlyElement(Iterable<T> iterable) {
+  public static <T extends @Nullable @Readonly Object> T getOnlyElement(Iterable<T> iterable) {
     return Iterators.getOnlyElement(iterable.iterator());
   }
 
@@ -279,7 +281,7 @@ public static String toString(Iterable<?> iterable) {
    * @throws IllegalArgumentException if the iterator contains multiple elements
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T getOnlyElement(
+  public static <T extends @Nullable @Readonly Object> T getOnlyElement(
       Iterable<? extends T> iterable, @ParametricNullness T defaultValue) {
     return Iterators.getOnlyElement(iterable.iterator(), defaultValue);
   }
@@ -301,7 +303,7 @@ public static String toString(Iterable<?> iterable) {
     return toArray(iterable, ObjectArrays.newArray(type, 0));
   }
 
-  static <T extends @Nullable Object> T[] toArray(Iterable<? extends T> iterable, T[] array) {
+  static <T extends @Nullable @Readonly Object> T[] toArray(Iterable<? extends T> iterable, T[] array) {
     Collection<? extends T> collection = castOrCopyToCollection(iterable);
     return collection.toArray(array);
   }
@@ -321,7 +323,7 @@ public static String toString(Iterable<?> iterable) {
    * returned. Otherwise, an {@link java.util.ArrayList} is created with the contents of the
    * iterable in the same iteration order.
    */
-  private static <E extends @Nullable Object> Collection<E> castOrCopyToCollection(
+  private static <E extends @Nullable @Readonly Object> Collection<E> castOrCopyToCollection(
       Iterable<E> iterable) {
     return (iterable instanceof Collection)
         ? (Collection<E>) iterable
@@ -334,8 +336,8 @@ public static String toString(Iterable<?> iterable) {
    * @return {@code true} if {@code collection} was modified as a result of this operation.
    */
   @CanIgnoreReturnValue
-  public static <T extends @Nullable Object> boolean addAll(
-      Collection<T> addTo, Iterable<? extends T> elementsToAdd) {
+  public static <T extends @Nullable @Readonly Object> boolean addAll(
+      @Mutable Collection<T> addTo, @Readonly Iterable<? extends T> elementsToAdd) {
     if (elementsToAdd instanceof Collection) {
       Collection<? extends T> c = (Collection<? extends T>) elementsToAdd;
       return addTo.addAll(c);
@@ -381,7 +383,7 @@ public static int frequency(Iterable<?> iterable, @CheckForNull Object element)
    * <p><b>Java 8 users:</b> The {@code Stream} equivalent of this method is {@code
    * Stream.generate(() -> iterable).flatMap(Streams::stream)}.
    */
-  public static <T extends @Nullable Object> Iterable<T> cycle(final Iterable<T> iterable) {
+  public static <T extends @Nullable @Readonly Object> Iterable<T> cycle(final Iterable<T> iterable) {
     checkNotNull(iterable);
     return new FluentIterable<T>() {
       @Override
@@ -423,7 +425,7 @@ public String toString() {
    * and use {@code Stream.generate(() -> collection).flatMap(Collection::stream)}.
    */
   @SafeVarargs
-  public static <T extends @Nullable Object> Iterable<T> cycle(T... elements) {
+  public static <T extends @Nullable @Readonly Object> Iterable<T> cycle(T... elements) {
     return cycle(Lists.newArrayList(elements));
   }
 
@@ -438,7 +440,7 @@ public String toString() {
    * <p><b>Java 8 users:</b> The {@code Stream} equivalent of this method is {@code Stream.concat(a,
    * b)}.
    */
-  public static <T extends @Nullable Object> Iterable<T> concat(
+  public static <T extends @Nullable @Readonly Object> Iterable<T> concat(
       Iterable<? extends T> a, Iterable<? extends T> b) {
     return FluentIterable.concat(a, b);
   }
@@ -454,7 +456,7 @@ public String toString() {
    * <p><b>Java 8 users:</b> The {@code Stream} equivalent of this method is {@code
    * Streams.concat(a, b, c)}.
    */
-  public static <T extends @Nullable Object> Iterable<T> concat(
+  public static <T extends @Nullable @Readonly Object> Iterable<T> concat(
       Iterable<? extends T> a, Iterable<? extends T> b, Iterable<? extends T> c) {
     return FluentIterable.concat(a, b, c);
   }
@@ -471,7 +473,7 @@ public String toString() {
    * <p><b>Java 8 users:</b> The {@code Stream} equivalent of this method is {@code
    * Streams.concat(a, b, c, d)}.
    */
-  public static <T extends @Nullable Object> Iterable<T> concat(
+  public static <T extends @Nullable @Readonly Object> Iterable<T> concat(
       Iterable<? extends T> a,
       Iterable<? extends T> b,
       Iterable<? extends T> c,
@@ -493,7 +495,7 @@ public String toString() {
    * @throws NullPointerException if any of the provided iterables is null
    */
   @SafeVarargs
-  public static <T extends @Nullable Object> Iterable<T> concat(Iterable<? extends T>... inputs) {
+  public static <T extends @Nullable @Readonly Object> Iterable<T> concat(Iterable<? extends T>... inputs) {
     return FluentIterable.concat(inputs);
   }
 
@@ -509,7 +511,7 @@ public String toString() {
    * <p><b>Java 8 users:</b> The {@code Stream} equivalent of this method is {@code
    * streamOfStreams.flatMap(s -> s)}.
    */
-  public static <T extends @Nullable Object> Iterable<T> concat(
+  public static <T extends @Nullable @Readonly Object> Iterable<T> concat(
       Iterable<? extends Iterable<? extends T>> inputs) {
     return FluentIterable.concat(inputs);
   }
@@ -536,7 +538,7 @@ public String toString() {
    *     into partitions
    * @throws IllegalArgumentException if {@code size} is nonpositive
    */
-  public static <T extends @Nullable Object> Iterable<List<T>> partition(
+  public static <T extends @Nullable @Readonly Object> Iterable<List<T>> partition(
       final Iterable<T> iterable, final int size) {
     checkNotNull(iterable);
     checkArgument(size > 0);
@@ -563,7 +565,7 @@ public Iterator<List<T>> iterator() {
    *     into partitions (the final iterable may have trailing null elements)
    * @throws IllegalArgumentException if {@code size} is nonpositive
    */
-  public static <T extends @Nullable Object> Iterable<List<@Nullable T>> paddedPartition(
+  public static <T extends @Nullable @Readonly Object> Iterable<List<@Nullable T>> paddedPartition(
       final Iterable<T> iterable, final int size) {
     checkNotNull(iterable);
     checkArgument(size > 0);
@@ -581,13 +583,13 @@ public Iterator<List<T>> iterator() {
    *
    * <p><b>{@code Stream} equivalent:</b> {@link Stream#filter}.
    */
-  public static <T extends @Nullable Object> Iterable<T> filter(
+  public static <T extends @Nullable @Readonly Object> Iterable<T> filter(
       final Iterable<T> unfiltered, final Predicate<? super T> retainIfTrue) {
     checkNotNull(unfiltered);
     checkNotNull(retainIfTrue);
     return new FluentIterable<T>() {
       @Override
-      public Iterator<T> iterator() {
+      public @Readonly Iterator<T> iterator() {
         return Iterators.filter(unfiltered.iterator(), retainIfTrue);
       }
 
@@ -636,7 +638,7 @@ public static <T> Iterable<T> filter(final Iterable<?> unfiltered, final Class<T
    *
    * <p><b>{@code Stream} equivalent:</b> {@link Stream#anyMatch}.
    */
-  public static <T extends @Nullable Object> boolean any(
+  public static <T extends @Nullable @Readonly Object> boolean any(
       Iterable<T> iterable, Predicate<? super T> predicate) {
     return Iterators.any(iterable.iterator(), predicate);
   }
@@ -647,7 +649,7 @@ public static <T> Iterable<T> filter(final Iterable<?> unfiltered, final Class<T
    *
    * <p><b>{@code Stream} equivalent:</b> {@link Stream#allMatch}.
    */
-  public static <T extends @Nullable Object> boolean all(
+  public static <T extends @Nullable @Readonly Object> boolean all(
       Iterable<T> iterable, Predicate<? super T> predicate) {
     return Iterators.all(iterable.iterator(), predicate);
   }
@@ -662,7 +664,7 @@ public static <T> Iterable<T> filter(final Iterable<?> unfiltered, final Class<T
    * @throws NoSuchElementException if no element in {@code iterable} matches the given predicate
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T find(
+  public static <T extends @Nullable @Readonly Object> T find(
       Iterable<T> iterable, Predicate<? super T> predicate) {
     return Iterators.find(iterable.iterator(), predicate);
   }
@@ -693,7 +695,7 @@ public static <T> Iterable<T> filter(final Iterable<?> unfiltered, final Class<T
   //
   // - @JointlyNullable means "@Nullable or no annotation"
   @CheckForNull
-  public static <T extends @Nullable Object> T find(
+  public static <T extends @Nullable @Readonly Object> T find(
       Iterable<? extends T> iterable,
       Predicate<? super T> predicate,
       @CheckForNull T defaultValue) {
@@ -725,7 +727,7 @@ public static <T> Optional<T> tryFind(Iterable<T> iterable, Predicate<? super T>
    *
    * @since 2.0
    */
-  public static <T extends @Nullable Object> int indexOf(
+  public static <T extends @Nullable @Readonly Object> int indexOf(
       Iterable<T> iterable, Predicate<? super T> predicate) {
     return Iterators.indexOf(iterable.iterator(), predicate);
   }
@@ -743,7 +745,7 @@ public static <T> Optional<T> tryFind(Iterable<T> iterable, Predicate<? super T>
    *
    * <p><b>{@code Stream} equivalent:</b> {@link Stream#map}
    */
-  public static <F extends @Nullable Object, T extends @Nullable Object> Iterable<T> transform(
+  public static <F extends @Nullable @Readonly Object, T extends @Nullable @Readonly Object> Iterable<T> transform(
       final Iterable<F> fromIterable, final Function<? super F, ? extends T> function) {
     checkNotNull(fromIterable);
     checkNotNull(function);
@@ -778,7 +780,7 @@ public Spliterator<T> spliterator() {
    *     the size of {@code iterable}
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T get(Iterable<T> iterable, int position) {
+  public static <T extends @Nullable @Readonly Object> T get(Iterable<T> iterable, int position) {
     checkNotNull(iterable);
     return (iterable instanceof List)
         ? ((List<T>) iterable).get(position)
@@ -801,7 +803,7 @@ public Spliterator<T> spliterator() {
    * @since 4.0
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T get(
+  public static <T extends @Nullable @Readonly Object> T get(
       Iterable<? extends T> iterable, int position, @ParametricNullness T defaultValue) {
     checkNotNull(iterable);
     Iterators.checkNonnegative(position);
@@ -833,7 +835,7 @@ public Spliterator<T> spliterator() {
    * @since 7.0
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T getFirst(
+  public static <T extends @Nullable @Readonly Object> T getFirst(
       Iterable<? extends T> iterable, @ParametricNullness T defaultValue) {
     return Iterators.getNext(iterable.iterator(), defaultValue);
   }
@@ -848,7 +850,7 @@ public Spliterator<T> spliterator() {
    * @throws NoSuchElementException if the iterable is empty
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T getLast(Iterable<T> iterable) {
+  public static <T extends @Nullable @Readonly Object> T getLast(Iterable<T> iterable) {
     // TODO(kevinb): Support a concurrently modified collection?
     if (iterable instanceof List) {
       List<T> list = (List<T>) iterable;
@@ -873,7 +875,7 @@ public Spliterator<T> spliterator() {
    * @since 3.0
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T getLast(
+  public static <T extends @Nullable @Readonly Object> T getLast(
       Iterable<? extends T> iterable, @ParametricNullness T defaultValue) {
     if (iterable instanceof Collection) {
       Collection<? extends T> c = (Collection<? extends T>) iterable;
@@ -888,7 +890,7 @@ public Spliterator<T> spliterator() {
   }
 
   @ParametricNullness
-  private static <T extends @Nullable Object> T getLastInNonemptyList(List<T> list) {
+  private static <T extends @Nullable @Readonly Object> T getLastInNonemptyList(List<T> list) {
     return list.get(list.size() - 1);
   }
 
@@ -911,7 +913,7 @@ public Spliterator<T> spliterator() {
    *
    * @since 3.0
    */
-  public static <T extends @Nullable Object> Iterable<T> skip(
+  public static <T extends @Nullable @Readonly Object> Iterable<T> skip(
       final Iterable<T> iterable, final int numberToSkip) {
     checkNotNull(iterable);
     checkArgument(numberToSkip >= 0, "number to skip cannot be negative");
@@ -983,7 +985,7 @@ public Spliterator<T> spliterator() {
    * @throws IllegalArgumentException if {@code limitSize} is negative
    * @since 3.0
    */
-  public static <T extends @Nullable Object> Iterable<T> limit(
+  public static <T extends @Nullable @Readonly Object> Iterable<T> limit(
       final Iterable<T> iterable, final int limitSize) {
     checkNotNull(iterable);
     checkArgument(limitSize >= 0, "limit is negative");
@@ -1016,7 +1018,7 @@ public Spliterator<T> spliterator() {
    * @see Iterators#consumingIterator(Iterator)
    * @since 2.0
    */
-  public static <T extends @Nullable Object> Iterable<T> consumingIterable(
+  public static <T extends @Nullable @Readonly Object> Iterable<T> consumingIterable(
       final Iterable<T> iterable) {
     checkNotNull(iterable);
 
@@ -1069,7 +1071,7 @@ public static boolean isEmpty(Iterable<?> iterable) {
    * @since 11.0
    */
   @Beta
-  public static <T extends @Nullable Object> Iterable<T> mergeSorted(
+  public static <T extends @Nullable @Readonly Object> Iterable<T> mergeSorted(
       final Iterable<? extends Iterable<? extends T>> iterables,
       final Comparator<? super T> comparator) {
     checkNotNull(iterables, "iterables");
@@ -1087,7 +1089,7 @@ public Iterator<T> iterator() {
 
   // TODO(user): Is this the best place for this? Move to fluent functions?
   // Useful as a public method?
-  static <T extends @Nullable Object>
+  static <T extends @Nullable @Readonly Object>
       Function<Iterable<? extends T>, Iterator<? extends T>> toIterator() {
     return new Function<Iterable<? extends T>, Iterator<? extends T>>() {
       @Override
diff --git a/guava/src/com/google/common/collect/Iterators.java b/guava/src/com/google/common/collect/Iterators.java
index 039917402e49..9322002ef94d 100644
--- a/guava/src/com/google/common/collect/Iterators.java
+++ b/guava/src/com/google/common/collect/Iterators.java
@@ -49,9 +49,15 @@
 import java.util.Queue;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * This class contains static utility methods that operate on or return objects of type {@link
@@ -70,7 +76,7 @@
  * @author Jared Levy
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
 public final class Iterators {
@@ -81,7 +87,7 @@ private Iterators() {}
    *
    * <p>The {@link Iterable} equivalent of this method is {@link ImmutableSet#of()}.
    */
-  static <T extends @Nullable Object> UnmodifiableIterator<T> emptyIterator() {
+  static <T extends @Nullable @Readonly Object> @Readonly UnmodifiableIterator<T> emptyIterator() {
     return emptyListIterator();
   }
 
@@ -92,15 +98,15 @@ private Iterators() {}
    */
   // Casting to any type is safe since there are no actual elements.
   @SuppressWarnings("unchecked")
-  static <T extends @Nullable Object> UnmodifiableListIterator<T> emptyListIterator() {
-    return (UnmodifiableListIterator<T>) ArrayItr.EMPTY;
+  static <T extends @Nullable @Readonly Object> @Readonly UnmodifiableListIterator<T> emptyListIterator() {
+    return (@Readonly UnmodifiableListIterator<T>) ArrayItr.EMPTY;
   }
 
   /**
    * This is an enum singleton rather than an anonymous class so ProGuard can figure out it's only
    * referenced by emptyModifiableIterator().
    */
-  private enum EmptyModifiableIterator implements Iterator<Object> {
+  private enum EmptyModifiableIterator implements Iterator<@Readonly Object> {
     INSTANCE;
 
     @Override
@@ -125,13 +131,13 @@ public void remove() {
    */
   // Casting to any type is safe since there are no actual elements.
   @SuppressWarnings("unchecked")
-  static <T extends @Nullable Object> Iterator<T> emptyModifiableIterator() {
-    return (Iterator<T>) EmptyModifiableIterator.INSTANCE;
+  static <T extends @Nullable @Readonly Object> @Readonly Iterator<T> emptyModifiableIterator() {
+    return (@Readonly Iterator<T>) EmptyModifiableIterator.INSTANCE;
   }
 
   /** Returns an unmodifiable view of {@code iterator}. */
-  public static <T extends @Nullable Object> UnmodifiableIterator<T> unmodifiableIterator(
-      Iterator<? extends T> iterator) {
+  public static <T extends @Nullable @Readonly Object> @Readonly UnmodifiableIterator<T> unmodifiableIterator(
+          @Readonly Iterator<? extends T> iterator) {
     checkNotNull(iterator);
     if (iterator instanceof UnmodifiableIterator) {
       @SuppressWarnings("unchecked") // Since it's unmodifiable, the covariant cast is safe
@@ -159,8 +165,8 @@ public T next() {
    * @since 10.0
    */
   @Deprecated
-  public static <T extends @Nullable Object> UnmodifiableIterator<T> unmodifiableIterator(
-      UnmodifiableIterator<T> iterator) {
+  public static <T extends @Nullable @Readonly Object> @Readonly UnmodifiableIterator<T> unmodifiableIterator(
+          @Readonly UnmodifiableIterator<T> iterator) {
     return checkNotNull(iterator);
   }
 
@@ -179,7 +185,7 @@ public static int size(Iterator<?> iterator) {
 
   /** Returns {@code true} if {@code iterator} contains {@code element}. */
   @Pure
-  public static boolean contains(Iterator<?> iterator, @CheckForNull @UnknownSignedness Object element) {
+  public static boolean contains(Iterator<?> iterator, @CheckForNull @UnknownSignedness @Readonly Object element) {
     if (element == null) {
       while (iterator.hasNext()) {
         if (iterator.next() == null) {
@@ -205,7 +211,7 @@ public static boolean contains(Iterator<?> iterator, @CheckForNull @UnknownSigne
    * @return {@code true} if any element was removed from {@code iterator}
    */
   @CanIgnoreReturnValue
-  public static boolean removeAll(Iterator<?> removeFrom, Collection<?> elementsToRemove) {
+  public static boolean removeAll(Iterator<?> removeFrom, @Readonly Collection<?> elementsToRemove) {
     checkNotNull(elementsToRemove);
     boolean result = false;
     while (removeFrom.hasNext()) {
@@ -227,7 +233,7 @@ public static boolean removeAll(Iterator<?> removeFrom, Collection<?> elementsTo
    * @since 2.0
    */
   @CanIgnoreReturnValue
-  public static <T extends @Nullable Object> boolean removeIf(
+  public static <T extends @Nullable @Readonly Object> boolean removeIf(
       Iterator<T> removeFrom, Predicate<? super T> predicate) {
     checkNotNull(predicate);
     boolean modified = false;
@@ -250,7 +256,7 @@ public static boolean removeAll(Iterator<?> removeFrom, Collection<?> elementsTo
    * @return {@code true} if any element was removed from {@code iterator}
    */
   @CanIgnoreReturnValue
-  public static boolean retainAll(Iterator<?> removeFrom, Collection<?> elementsToRetain) {
+  public static boolean retainAll(Iterator<?> removeFrom, @Readonly Collection<?> elementsToRetain) {
     checkNotNull(elementsToRetain);
     boolean result = false;
     while (removeFrom.hasNext()) {
@@ -311,7 +317,7 @@ public static String toString(Iterator<?> iterator) {
    *     iterator is unspecified.
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T getOnlyElement(Iterator<T> iterator) {
+  public static <T extends @Nullable @Readonly Object> T getOnlyElement(Iterator<T> iterator) {
     T first = iterator.next();
     if (!iterator.hasNext()) {
       return first;
@@ -337,8 +343,8 @@ public static String toString(Iterator<?> iterator) {
    *     iterator is unspecified.
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T getOnlyElement(
-      Iterator<? extends T> iterator, @ParametricNullness T defaultValue) {
+  public static <T extends @Nullable @Readonly Object> T getOnlyElement(
+          Iterator<? extends T> iterator, @ParametricNullness T defaultValue) {
     return iterator.hasNext() ? getOnlyElement(iterator) : defaultValue;
   }
 
@@ -364,7 +370,7 @@ public static String toString(Iterator<?> iterator) {
    * @return {@code true} if {@code collection} was modified as a result of this operation
    */
   @CanIgnoreReturnValue
-  public static <T extends @Nullable Object> boolean addAll(
+  public static <T extends @Nullable @Readonly Object> boolean addAll(
       Collection<T> addTo, Iterator<? extends T> iterator) {
     checkNotNull(addTo);
     checkNotNull(iterator);
@@ -381,7 +387,7 @@ public static String toString(Iterator<?> iterator) {
    *
    * @see Collections#frequency
    */
-  public static int frequency(Iterator<?> iterator, @CheckForNull Object element) {
+  public static int frequency(Iterator<?> iterator, @CheckForNull @Readonly Object element) {
     int count = 0;
     while (contains(iterator, element)) {
       // Since it lives in the same class, we know contains gets to the element and then stops,
@@ -403,7 +409,7 @@ public static int frequency(Iterator<?> iterator, @CheckForNull Object element)
    * should use an explicit {@code break} or be certain that you will eventually remove all the
    * elements.
    */
-  public static <T extends @Nullable Object> Iterator<T> cycle(Iterable<T> iterable) {
+  public static <T extends @Nullable @Readonly Object> Iterator<T> cycle(Iterable<T> iterable) {
     checkNotNull(iterable);
     return new Iterator<T>() {
       Iterator<T> iterator = emptyModifiableIterator();
@@ -454,7 +460,7 @@ public void remove() {
    * elements.
    */
   @SafeVarargs
-  public static <T extends @Nullable Object> Iterator<T> cycle(T... elements) {
+  public static <T extends @Nullable @Readonly Object> Iterator<T> cycle(T... elements) {
     return cycle(Lists.newArrayList(elements));
   }
 
@@ -468,7 +474,7 @@ public void remove() {
    *
    * <p>This is mainly just to avoid the intermediate ArrayDeque in ConsumingQueueIterator.
    */
-  private static <I extends Iterator<?>> Iterator<I> consumingForArray(@Nullable I... elements) {
+  private static <I extends @Readonly Iterator<?>> @Readonly Iterator<I> consumingForArray(@Nullable I... elements) {
     return new UnmodifiableIterator<I>() {
       int index = 0;
 
@@ -502,7 +508,7 @@ public I next() {
    * <p>The returned iterator supports {@code remove()} when the corresponding input iterator
    * supports it.
    */
-  public static <T extends @Nullable Object> Iterator<T> concat(
+  public static <T extends @Nullable @Readonly Object> Iterator<T> concat(
       Iterator<? extends T> a, Iterator<? extends T> b) {
     checkNotNull(a);
     checkNotNull(b);
@@ -517,7 +523,7 @@ public I next() {
    * <p>The returned iterator supports {@code remove()} when the corresponding input iterator
    * supports it.
    */
-  public static <T extends @Nullable Object> Iterator<T> concat(
+  public static <T extends @Nullable @Readonly Object> Iterator<T> concat(
       Iterator<? extends T> a, Iterator<? extends T> b, Iterator<? extends T> c) {
     checkNotNull(a);
     checkNotNull(b);
@@ -534,7 +540,7 @@ public I next() {
    * <p>The returned iterator supports {@code remove()} when the corresponding input iterator
    * supports it.
    */
-  public static <T extends @Nullable Object> Iterator<T> concat(
+  public static <T extends @Nullable @Readonly Object> Iterator<T> concat(
       Iterator<? extends T> a,
       Iterator<? extends T> b,
       Iterator<? extends T> c,
@@ -556,7 +562,7 @@ public I next() {
    *
    * @throws NullPointerException if any of the provided iterators is null
    */
-  public static <T extends @Nullable Object> Iterator<T> concat(Iterator<? extends T>... inputs) {
+  public static <T extends @Nullable @Readonly Object> Iterator<T> concat(Iterator<? extends T>... inputs) {
     return concatNoDefensiveCopy(Arrays.copyOf(inputs, inputs.length));
   }
 
@@ -569,13 +575,13 @@ public I next() {
    * supports it. The methods of the returned iterator may throw {@code NullPointerException} if any
    * of the input iterators is null.
    */
-  public static <T extends @Nullable Object> Iterator<T> concat(
-      Iterator<? extends Iterator<? extends T>> inputs) {
+  public static <T extends @Nullable @Readonly Object> Iterator<T> concat(
+      Iterator<? extends @Readonly Iterator<? extends T>> inputs) {
     return new ConcatenatedIterator<>(inputs);
   }
 
   /** Concats a varargs array of iterators without making a defensive copy of the array. */
-  static <T extends @Nullable Object> Iterator<T> concatNoDefensiveCopy(
+  static <T extends @Nullable @Readonly Object> Iterator<T> concatNoDefensiveCopy(
       Iterator<? extends T>... inputs) {
     for (Iterator<? extends T> input : checkNotNull(inputs)) {
       checkNotNull(input);
@@ -601,7 +607,7 @@ public I next() {
    *     partitions
    * @throws IllegalArgumentException if {@code size} is nonpositive
    */
-  public static <T extends @Nullable Object> UnmodifiableIterator<List<T>> partition(
+  public static <T extends @Nullable @Readonly Object> UnmodifiableIterator<List<T>> partition(
       Iterator<T> iterator, int size) {
     return partitionImpl(iterator, size, false);
   }
@@ -620,12 +626,12 @@ public I next() {
    *     partitions (the final iterable may have trailing null elements)
    * @throws IllegalArgumentException if {@code size} is nonpositive
    */
-  public static <T extends @Nullable Object>
+  public static <T extends @Nullable @Readonly Object>
       UnmodifiableIterator<List<@Nullable T>> paddedPartition(Iterator<T> iterator, int size) {
     return partitionImpl(iterator, size, true);
   }
 
-  private static <T extends @Nullable Object> UnmodifiableIterator<List<@Nullable T>> partitionImpl(
+  private static <T extends @Nullable @Readonly Object> UnmodifiableIterator<List<@Nullable T>> partitionImpl(
       Iterator<T> iterator, int size, boolean pad) {
     checkNotNull(iterator);
     checkArgument(size > 0);
@@ -666,7 +672,7 @@ public boolean hasNext() {
    * Returns a view of {@code unfiltered} containing all elements that satisfy the input predicate
    * {@code retainIfTrue}.
    */
-  public static <T extends @Nullable Object> UnmodifiableIterator<T> filter(
+  public static <T extends @Nullable @Readonly Object> @Readonly UnmodifiableIterator<T> filter(
       Iterator<T> unfiltered, Predicate<? super T> retainIfTrue) {
     checkNotNull(unfiltered);
     checkNotNull(retainIfTrue);
@@ -691,15 +697,15 @@ protected T computeNext() {
    */
   @SuppressWarnings("unchecked") // can cast to <T> because non-Ts are removed
   @GwtIncompatible // Class.isInstance
-  public static <T> UnmodifiableIterator<T> filter(Iterator<?> unfiltered, Class<T> desiredType) {
-    return (UnmodifiableIterator<T>) filter(unfiltered, instanceOf(desiredType));
+  public static <T> @Readonly UnmodifiableIterator<T> filter(Iterator<?> unfiltered, Class<T> desiredType) {
+    return (@Readonly UnmodifiableIterator<T>) filter(unfiltered, instanceOf(desiredType));
   }
 
   /**
    * Returns {@code true} if one or more elements returned by {@code iterator} satisfy the given
    * predicate.
    */
-  public static <T extends @Nullable Object> boolean any(
+  public static <T extends @Nullable @Readonly Object> boolean any(
       Iterator<T> iterator, Predicate<? super T> predicate) {
     return indexOf(iterator, predicate) != -1;
   }
@@ -708,7 +714,7 @@ public static <T> UnmodifiableIterator<T> filter(Iterator<?> unfiltered, Class<T
    * Returns {@code true} if every element returned by {@code iterator} satisfies the given
    * predicate. If {@code iterator} is empty, {@code true} is returned.
    */
-  public static <T extends @Nullable Object> boolean all(
+  public static <T extends @Nullable @Readonly Object> boolean all(
       Iterator<T> iterator, Predicate<? super T> predicate) {
     checkNotNull(predicate);
     while (iterator.hasNext()) {
@@ -730,7 +736,7 @@ public static <T> UnmodifiableIterator<T> filter(Iterator<?> unfiltered, Class<T
    * @throws NoSuchElementException if no element in {@code iterator} matches the given predicate
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T find(
+  public static <T extends @Nullable @Readonly Object> T find(
       Iterator<T> iterator, Predicate<? super T> predicate) {
     checkNotNull(iterator);
     checkNotNull(predicate);
@@ -753,7 +759,7 @@ public static <T> UnmodifiableIterator<T> filter(Iterator<?> unfiltered, Class<T
    */
   // For discussion of this signature, see the corresponding overload of *Iterables*.find.
   @CheckForNull
-  public static <T extends @Nullable Object> T find(
+  public static <T extends @Nullable @Readonly Object> T find(
       Iterator<? extends T> iterator,
       Predicate<? super T> predicate,
       @CheckForNull T defaultValue) {
@@ -805,7 +811,7 @@ public static <T> Optional<T> tryFind(Iterator<T> iterator, Predicate<? super T>
    *
    * @since 2.0
    */
-  public static <T extends @Nullable Object> int indexOf(
+  public static <T extends @Nullable @Readonly Object> int indexOf(
       Iterator<T> iterator, Predicate<? super T> predicate) {
     checkNotNull(predicate, "predicate");
     for (int i = 0; iterator.hasNext(); i++) {
@@ -825,7 +831,7 @@ public static <T> Optional<T> tryFind(Iterator<T> iterator, Predicate<? super T>
    * successful {@code remove()} call, {@code fromIterator} no longer contains the corresponding
    * element.
    */
-  public static <F extends @Nullable Object, T extends @Nullable Object> Iterator<T> transform(
+  public static <F extends @Nullable @Readonly Object, T extends @Nullable @Readonly Object> Iterator<T> transform(
       Iterator<F> fromIterator, Function<? super F, ? extends T> function) {
     checkNotNull(function);
     return new TransformedIterator<F, T>(fromIterator) {
@@ -847,7 +853,7 @@ T transform(@ParametricNullness F from) {
    *     the number of elements remaining in {@code iterator}
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T get(Iterator<T> iterator, int position) {
+  public static <T extends @Nullable @Readonly Object> T get(Iterator<T> iterator, int position) {
     checkNonnegative(position);
     int skipped = advance(iterator, position);
     if (!iterator.hasNext()) {
@@ -874,7 +880,7 @@ T transform(@ParametricNullness F from) {
    * @since 4.0
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T get(
+  public static <T extends @Nullable @Readonly Object> T get(
       Iterator<? extends T> iterator, int position, @ParametricNullness T defaultValue) {
     checkNonnegative(position);
     advance(iterator, position);
@@ -896,7 +902,7 @@ static void checkNonnegative(int position) {
    * @since 7.0
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T getNext(
+  public static <T extends @Nullable @Readonly Object> T getNext(
       Iterator<? extends T> iterator, @ParametricNullness T defaultValue) {
     return iterator.hasNext() ? iterator.next() : defaultValue;
   }
@@ -908,7 +914,7 @@ static void checkNonnegative(int position) {
    * @throws NoSuchElementException if the iterator is empty
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T getLast(Iterator<T> iterator) {
+  public static <T extends @Nullable @Readonly Object> T getLast(Iterator<T> iterator) {
     while (true) {
       T current = iterator.next();
       if (!iterator.hasNext()) {
@@ -926,7 +932,7 @@ static void checkNonnegative(int position) {
    * @since 3.0
    */
   @ParametricNullness
-  public static <T extends @Nullable Object> T getLast(
+  public static <T extends @Nullable @Readonly Object> T getLast(
       Iterator<? extends T> iterator, @ParametricNullness T defaultValue) {
     return iterator.hasNext() ? getLast(iterator) : defaultValue;
   }
@@ -960,8 +966,8 @@ public static int advance(Iterator<?> iterator, int numberToAdvance) {
    * @throws IllegalArgumentException if {@code limitSize} is negative
    * @since 3.0
    */
-  public static <T extends @Nullable Object> Iterator<T> limit(
-      Iterator<T> iterator, int limitSize) {
+  public static <T extends @Nullable @Readonly Object> @PolyMutable Iterator<T> limit(
+      @PolyMutable Iterator<T> iterator, int limitSize) {
     checkNotNull(iterator);
     checkArgument(limitSize >= 0, "limit is negative");
     return new Iterator<T>() {
@@ -1000,7 +1006,7 @@ public void remove() {
    * @return an iterator that removes and returns elements from the supplied iterator
    * @since 2.0
    */
-  public static <T extends @Nullable Object> Iterator<T> consumingIterator(Iterator<T> iterator) {
+  public static <T extends @Nullable @Readonly Object> Iterator<T> consumingIterator(Iterator<T> iterator) {
     checkNotNull(iterator);
     return new UnmodifiableIterator<T>() {
       @Override
@@ -1028,7 +1034,7 @@ public String toString() {
    * such value.
    */
   @CheckForNull
-  static <T extends @Nullable Object> T pollNext(Iterator<T> iterator) {
+  static <T extends @Nullable @Readonly Object> T pollNext(Iterator<T> iterator) {
     if (iterator.hasNext()) {
       T result = iterator.next();
       iterator.remove();
@@ -1060,7 +1066,7 @@ static void clear(Iterator<?> iterator) {
    * {@link ImmutableList#copyOf(Object[])}}, or {@link ImmutableList#of}.
    */
   @SafeVarargs
-  public static <T extends @Nullable Object> UnmodifiableIterator<T> forArray(T... array) {
+  public static <T extends @Nullable @Readonly Object> UnmodifiableIterator<T> forArray(T... array) {
     return forArray(array, 0, array.length, 0);
   }
 
@@ -1071,7 +1077,7 @@ static void clear(Iterator<?> iterator) {
    * <p>The {@code Iterable} equivalent of this method is {@code
    * Arrays.asList(array).subList(offset, offset + length).listIterator(index)}.
    */
-  static <T extends @Nullable Object> UnmodifiableListIterator<T> forArray(
+  static <T extends @Nullable @Readonly Object> UnmodifiableListIterator<T> forArray(
       T[] array, int offset, int length, int index) {
     checkArgument(length >= 0);
     int end = offset + length;
@@ -1085,14 +1091,15 @@ static void clear(Iterator<?> iterator) {
     return new ArrayItr<>(array, offset, length, index);
   }
 
-  private static final class ArrayItr<T extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static final class ArrayItr<T extends @Nullable @Readonly Object>
       extends AbstractIndexedListIterator<T> {
-    static final UnmodifiableListIterator<Object> EMPTY = new ArrayItr<>(new Object[0], 0, 0, 0);
+    static final UnmodifiableListIterator<Object> EMPTY = new @Immutable ArrayItr<>(new Object[0], 0, 0, 0);
 
     private final T[] array;
     private final int offset;
 
-    ArrayItr(T[] array, int offset, int length, int index) {
+    ArrayItr(T @ReceiverDependentMutable [] array, int offset, int length, int index) {
       super(length, index);
       this.array = array;
       this.offset = offset;
@@ -1100,7 +1107,7 @@ private static final class ArrayItr<T extends @Nullable Object>
 
     @Override
     @ParametricNullness
-    protected T get(int index) {
+    protected T get(@Readonly ArrayItr<T> this, int index) {
       return array[offset + index];
     }
   }
@@ -1110,7 +1117,7 @@ protected T get(int index) {
    *
    * <p>The {@link Iterable} equivalent of this method is {@link Collections#singleton}.
    */
-  public static <T extends @Nullable Object> UnmodifiableIterator<T> singletonIterator(
+  public static <T extends @Nullable @Readonly Object> UnmodifiableIterator<T> singletonIterator(
       @ParametricNullness T value) {
     return new UnmodifiableIterator<T>() {
       boolean done;
@@ -1142,7 +1149,7 @@ public T next() {
    * <p><b>Java 9 users:</b> use {@code enumeration.asIterator()} instead, unless it is important to
    * return an {@code UnmodifiableIterator} instead of a plain {@code Iterator}.
    */
-  public static <T extends @Nullable Object> UnmodifiableIterator<T> forEnumeration(
+  public static <T extends @Nullable @Readonly Object> UnmodifiableIterator<T> forEnumeration(
       Enumeration<T> enumeration) {
     checkNotNull(enumeration);
     return new UnmodifiableIterator<T>() {
@@ -1165,7 +1172,7 @@ public T next() {
    * <p>The {@code Iterable} equivalent of this method is either {@link Collections#enumeration} (if
    * you have a {@link Collection}), or {@code Iterators.asEnumeration(collection.iterator())}.
    */
-  public static <T extends @Nullable Object> Enumeration<T> asEnumeration(Iterator<T> iterator) {
+  public static <T extends @Nullable @Readonly Object> Enumeration<T> asEnumeration(Iterator<T> iterator) {
     checkNotNull(iterator);
     return new Enumeration<T>() {
       @Override
@@ -1182,24 +1189,25 @@ public T nextElement() {
   }
 
   /** Implementation of PeekingIterator that avoids peeking unless necessary. */
-  private static class PeekingImpl<E extends @Nullable Object> implements PeekingIterator<E> {
+  @ReceiverDependentMutable
+  private static class PeekingImpl<E extends @Nullable @Readonly Object> implements PeekingIterator<E> {
 
     private final Iterator<? extends E> iterator;
     private boolean hasPeeked;
     @CheckForNull private E peekedElement;
 
-    public PeekingImpl(Iterator<? extends E> iterator) {
+    public PeekingImpl(@ReceiverDependentMutable Iterator<? extends E> iterator) {
       this.iterator = checkNotNull(iterator);
     }
 
     @Override
-    public boolean hasNext() {
+    public boolean hasNext(@Readonly PeekingImpl<E> this) {
       return hasPeeked || iterator.hasNext();
     }
 
     @Override
     @ParametricNullness
-    public E next() {
+    public E next(@Mutable PeekingImpl<E> this) {
       if (!hasPeeked) {
         return iterator.next();
       }
@@ -1211,14 +1219,14 @@ public E next() {
     }
 
     @Override
-    public void remove() {
+    public void remove(@Mutable PeekingImpl<E> this) {
       checkState(!hasPeeked, "Can't remove after you've peeked at next");
       iterator.remove();
     }
 
     @Override
     @ParametricNullness
-    public E peek() {
+    public E peek(@Readonly PeekingImpl<E> this) {
       if (!hasPeeked) {
         peekedElement = iterator.next();
         hasPeeked = true;
@@ -1264,7 +1272,7 @@ public E peek() {
    * @return a peeking iterator backed by that iterator. Apart from the additional {@link
    *     PeekingIterator#peek()} method, this iterator behaves exactly the same as {@code iterator}.
    */
-  public static <T extends @Nullable Object> PeekingIterator<T> peekingIterator(
+  public static <T extends @Nullable @Readonly Object> PeekingIterator<T> peekingIterator(
       Iterator<? extends T> iterator) {
     if (iterator instanceof PeekingImpl) {
       // Safe to cast <? extends T> to <T> because PeekingImpl only uses T
@@ -1283,8 +1291,8 @@ public E peek() {
    * @since 10.0
    */
   @Deprecated
-  public static <T extends @Nullable Object> PeekingIterator<T> peekingIterator(
-      PeekingIterator<T> iterator) {
+  public static <T extends @Nullable @Readonly Object> @PolyMutable PeekingIterator<T> peekingIterator(
+      @PolyMutable PeekingIterator<T> iterator) {
     return checkNotNull(iterator);
   }
 
@@ -1301,7 +1309,7 @@ public E peek() {
    * @since 11.0
    */
   @Beta
-  public static <T extends @Nullable Object> UnmodifiableIterator<T> mergeSorted(
+  public static <T extends @Nullable @Readonly Object> UnmodifiableIterator<T> mergeSorted(
       Iterable<? extends Iterator<? extends T>> iterators, Comparator<? super T> comparator) {
     checkNotNull(iterators, "iterators");
     checkNotNull(comparator, "comparator");
@@ -1318,8 +1326,10 @@ public E peek() {
    * iterators. (Retrieving all elements takes approximately O(N*log(M)) time, where N is the total
    * number of elements.)
    */
-  private static class MergingIterator<T extends @Nullable Object> extends UnmodifiableIterator<T> {
-    final Queue<PeekingIterator<T>> queue;
+  @CFComment("AOSEN: Is this a design issue?")
+  @ReceiverDependentMutable
+  private static class MergingIterator<T extends @Nullable @Readonly Object> extends UnmodifiableIterator<T> {
+    final @Mutable Queue<PeekingIterator<T>> queue;
 
     public MergingIterator(
         Iterable<? extends Iterator<? extends T>> iterators, Comparator<? super T> itemComparator) {
@@ -1339,13 +1349,13 @@ public MergingIterator(
     }
 
     @Override
-    public boolean hasNext() {
+    public boolean hasNext(@Readonly MergingIterator<T> this) {
       return !queue.isEmpty();
     }
 
     @Override
     @ParametricNullness
-    public T next() {
+    public T next(@Mutable MergingIterator<T> this) {
       PeekingIterator<T> nextIter = queue.remove();
       T next = nextIter.next();
       if (nextIter.hasNext()) {
@@ -1355,12 +1365,13 @@ public T next() {
     }
   }
 
-  private static class ConcatenatedIterator<T extends @Nullable Object> implements Iterator<T> {
+  @ReceiverDependentMutable
+  private static class ConcatenatedIterator<T extends @Nullable @Readonly Object> implements Iterator<T> {
     /* The last iterator to return an element.  Calls to remove() go to this iterator. */
     @CheckForNull private Iterator<? extends T> toRemove;
 
     /* The iterator currently returning elements. */
-    private Iterator<? extends T> iterator;
+    private @Readonly Iterator<? extends T> iterator;
 
     /*
      * We track the "meta iterators," the iterators-of-iterators, below.  Usually, topMetaIterator
@@ -1374,14 +1385,14 @@ private static class ConcatenatedIterator<T extends @Nullable Object> implements
     // Only becomes nonnull if we encounter nested concatenations.
     @CheckForNull private Deque<Iterator<? extends Iterator<? extends T>>> metaIterators;
 
-    ConcatenatedIterator(Iterator<? extends Iterator<? extends T>> metaIterator) {
+    ConcatenatedIterator(@ReceiverDependentMutable Iterator<? extends Iterator<? extends T>> metaIterator) {
       iterator = emptyIterator();
       topMetaIterator = checkNotNull(metaIterator);
     }
 
     // Returns a nonempty meta-iterator or, if all meta-iterators are empty, null.
     @CheckForNull
-    private Iterator<? extends Iterator<? extends T>> getTopMetaIterator() {
+    private @PolyMutable Iterator<? extends Iterator<? extends T>> getTopMetaIterator(@PolyMutable ConcatenatedIterator<T> this) {
       while (topMetaIterator == null || !topMetaIterator.hasNext()) {
         if (metaIterators != null && !metaIterators.isEmpty()) {
           topMetaIterator = metaIterators.removeFirst();
@@ -1393,7 +1404,7 @@ private Iterator<? extends Iterator<? extends T>> getTopMetaIterator() {
     }
 
     @Override
-    public boolean hasNext() {
+    public boolean hasNext(@Readonly ConcatenatedIterator<T> this) {
       while (!checkNotNull(iterator).hasNext()) {
         // this weird checkNotNull positioning appears required by our tests, which expect
         // both hasNext and next to throw NPE if an input iterator is null.
@@ -1432,7 +1443,7 @@ public boolean hasNext() {
 
     @Override
     @ParametricNullness
-    public T next() {
+    public T next(@Mutable ConcatenatedIterator<T> this) {
       if (hasNext()) {
         toRemove = iterator;
         return iterator.next();
@@ -1442,7 +1453,7 @@ public T next() {
     }
 
     @Override
-    public void remove() {
+    public void remove(@Mutable ConcatenatedIterator<T> this) {
       if (toRemove == null) {
         throw new IllegalStateException("no calls to next() since the last call to remove()");
       }
@@ -1452,7 +1463,7 @@ public void remove() {
   }
 
   /** Used to avoid http://bugs.sun.com/view_bug.do?bug_id=6558557 */
-  static <T extends @Nullable Object> ListIterator<T> cast(Iterator<T> iterator) {
-    return (ListIterator<T>) iterator;
+  static <T extends @Nullable @Readonly Object> @PolyMutable ListIterator<T> cast(@PolyMutable Iterator<T> iterator) {
+    return (@PolyMutable ListIterator<T>) iterator;
   }
 }
diff --git a/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java b/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java
index e2c2720910f6..384ec00971e6 100644
--- a/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java
+++ b/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java
@@ -27,16 +27,21 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Implementation of ImmutableBiMap backed by a pair of JDK HashMaps, which have smartness
  * protecting against hash flooding.
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-final class JdkBackedImmutableBiMap<K, V> extends ImmutableBiMap<K, V> {
+@Immutable
+final class JdkBackedImmutableBiMap<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableBiMap<K, V> {
   @VisibleForTesting
-  static <K, V> ImmutableBiMap<K, V> create(int n, @Nullable Entry<K, V>[] entryArray) {
+  static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> create(int n, @Nullable Entry<K, V>[] entryArray) {
     Map<K, V> forwardDelegate = Maps.newHashMapWithExpectedSize(n);
     Map<V, K> backwardDelegate = Maps.newHashMapWithExpectedSize(n);
     for (int i = 0; i < n; i++) {
@@ -88,6 +93,7 @@ public ImmutableBiMap<V, K> inverse() {
   }
 
   @WeakOuter
+  @Immutable
   private final class InverseEntries extends ImmutableList<Entry<V, K>> {
     @Override
     public Entry<V, K> get(int index) {
@@ -108,12 +114,12 @@ boolean isPartialView() {
 
   @Override
   @CheckForNull
-  public V get(@CheckForNull @UnknownSignedness Object key) {
+  public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
     return forwardDelegate.get(key);
   }
 
   @Override
-  ImmutableSet<Entry<K, V>> createEntrySet() {
+  ImmutableSet<@Immutable Entry<K, V>> createEntrySet() {
     return new ImmutableMapEntrySet.RegularEntrySet<>(this, entries);
   }
 
diff --git a/guava/src/com/google/common/collect/JdkBackedImmutableMap.java b/guava/src/com/google/common/collect/JdkBackedImmutableMap.java
index ac8cd7d64c6b..262f11a98c52 100644
--- a/guava/src/com/google/common/collect/JdkBackedImmutableMap.java
+++ b/guava/src/com/google/common/collect/JdkBackedImmutableMap.java
@@ -27,22 +27,28 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Implementation of ImmutableMap backed by a JDK HashMap, which has smartness protecting against
  * hash flooding.
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-final class JdkBackedImmutableMap<K, V> extends ImmutableMap<K, V> {
+@Immutable
+final class JdkBackedImmutableMap<K extends @Immutable Object, V> extends ImmutableMap<K, V> {
   /**
    * Creates an {@code ImmutableMap} backed by a JDK HashMap. Used when probable hash flooding is
    * detected. This implementation may replace the entries in entryArray with its own entry objects
    * (though they will have the same key/value contents), and will take ownership of entryArray.
    */
-  static <K, V> ImmutableMap<K, V> create(
-      int n, @Nullable Entry<K, V>[] entryArray, boolean throwIfDuplicateKeys) {
+  static <K extends @Immutable Object, V> ImmutableMap<K, V> create(
+      int n, @Nullable @Immutable Entry<K, V>[] entryArray, boolean throwIfDuplicateKeys) {
     Map<K, V> delegateMap = Maps.newHashMapWithExpectedSize(n);
     // If duplicates are allowed, this map will track the last value for each duplicated key.
     // A second pass will retain only the first entry for that key, but with this last value. The
@@ -69,7 +75,7 @@ static <K, V> ImmutableMap<K, V> create(
     }
     if (duplicates != null) {
       @SuppressWarnings({"rawtypes", "unchecked"})
-      Entry<K, V>[] newEntryArray = new Entry[n - dupCount];
+      @Immutable Entry<K, V>[] newEntryArray = new @Immutable Entry[n - dupCount];
       for (int inI = 0, outI = 0; inI < n; inI++) {
         Entry<K, V> entry = requireNonNull(entryArray[inI]);
         K key = entry.getKey();
@@ -91,7 +97,7 @@ static <K, V> ImmutableMap<K, V> create(
   private final transient Map<K, V> delegateMap;
   private final transient ImmutableList<Entry<K, V>> entries;
 
-  JdkBackedImmutableMap(Map<K, V> delegateMap, ImmutableList<Entry<K, V>> entries) {
+  JdkBackedImmutableMap(@Immutable Map<K, V> delegateMap, ImmutableList<Entry<K, V>> entries) {
     this.delegateMap = delegateMap;
     this.entries = entries;
   }
@@ -103,7 +109,7 @@ static <K, V> ImmutableMap<K, V> create(
 
   @Override
   @CheckForNull
-  public V get(@CheckForNull @UnknownSignedness Object key) {
+  public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
     return delegateMap.get(key);
   }
 
diff --git a/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java b/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java
index 82472963f5a8..2c8c5be9e4e3 100644
--- a/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java
+++ b/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java
@@ -22,7 +22,10 @@
 import java.util.Map;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * An implementation of ImmutableMultiset backed by a JDK Map and a list of entries. Used to protect
@@ -30,14 +33,17 @@
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-final class JdkBackedImmutableMultiset<E> extends ImmutableMultiset<E> {
-  private final Map<E, Integer> delegateMap;
+@CFComment("This E is used as Map key")
+@Immutable
+final class JdkBackedImmutableMultiset<E extends @Immutable Object> extends ImmutableMultiset<E> {
+  private final @Immutable Map<E, Integer> delegateMap;
   private final ImmutableList<Entry<E>> entries;
   private final long size;
 
-  static <E> ImmutableMultiset<E> create(Collection<? extends Entry<? extends E>> entries) {
+  static <E extends @Immutable Object> ImmutableMultiset<E> create(Collection<? extends Entry<? extends E>> entries) {
     @SuppressWarnings("unchecked")
     Entry<E>[] entriesArray = entries.toArray(new Entry[0]);
     Map<E, Integer> delegateMap = Maps.newHashMapWithExpectedSize(entriesArray.length);
diff --git a/guava/src/com/google/common/collect/JdkBackedImmutableSet.java b/guava/src/com/google/common/collect/JdkBackedImmutableSet.java
index 80a99ed7cc29..e5dc9231a0a2 100644
--- a/guava/src/com/google/common/collect/JdkBackedImmutableSet.java
+++ b/guava/src/com/google/common/collect/JdkBackedImmutableSet.java
@@ -18,7 +18,10 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * ImmutableSet implementation backed by a JDK HashSet, used to defend against apparent hash
@@ -27,13 +30,15 @@
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class JdkBackedImmutableSet<E> extends IndexedImmutableSet<E> {
-  private final Set<?> delegate;
+  private final @Immutable Set<?> delegate;
   private final ImmutableList<E> delegateList;
 
-  JdkBackedImmutableSet(Set<?> delegate, ImmutableList<E> delegateList) {
+  JdkBackedImmutableSet(@Immutable Set<?> delegate, ImmutableList<E> delegateList) {
     this.delegate = delegate;
     this.delegateList = delegateList;
   }
@@ -44,7 +49,7 @@ E get(int index) {
   }
 
   @Override
-  public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+  public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
     return delegate.contains(object);
   }
 
diff --git a/guava/src/com/google/common/collect/LexicographicalOrdering.java b/guava/src/com/google/common/collect/LexicographicalOrdering.java
index f0c78d7e272f..1bd79fd8b90e 100644
--- a/guava/src/com/google/common/collect/LexicographicalOrdering.java
+++ b/guava/src/com/google/common/collect/LexicographicalOrdering.java
@@ -22,12 +22,13 @@
 import java.util.Iterator;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /** An ordering which sorts iterables by comparing corresponding elements pairwise. */
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-final class LexicographicalOrdering<T extends @Nullable Object> extends Ordering<Iterable<T>>
+final class LexicographicalOrdering<T extends @Nullable @Readonly Object> extends Ordering<Iterable<T>>
     implements Serializable {
   final Comparator<? super T> elementOrder;
 
diff --git a/guava/src/com/google/common/collect/LinkedHashMultimap.java b/guava/src/com/google/common/collect/LinkedHashMultimap.java
index 66eafbeaea0a..9a8e66ab6136 100644
--- a/guava/src/com/google/common/collect/LinkedHashMultimap.java
+++ b/guava/src/com/google/common/collect/LinkedHashMultimap.java
@@ -45,9 +45,16 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * Implementation of {@code Multimap} that does not allow duplicate key-value entries and that
@@ -87,14 +94,15 @@
  * @author Louis Wasserman
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class LinkedHashMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public final class LinkedHashMultimap<K extends @Nullable @Immutable Object, V extends @Readonly @Nullable Object>
     extends LinkedHashMultimapGwtSerializationDependencies<K, V> {
 
   /** Creates a new, empty {@code LinkedHashMultimap} with the default initial capacities. */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       LinkedHashMultimap<K, V> create() {
     return new LinkedHashMultimap<>(DEFAULT_KEY_CAPACITY, DEFAULT_VALUE_SET_CAPACITY);
   }
@@ -108,7 +116,7 @@ LinkedHashMultimap<K, V> create() {
    * @throws IllegalArgumentException if {@code expectedKeys} or {@code expectedValuesPerKey} is
    *     negative
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       LinkedHashMultimap<K, V> create(int expectedKeys, int expectedValuesPerKey) {
     return new LinkedHashMultimap<>(
         Maps.capacity(expectedKeys), Maps.capacity(expectedValuesPerKey));
@@ -122,41 +130,42 @@ LinkedHashMultimap<K, V> create(int expectedKeys, int expectedValuesPerKey) {
    *
    * @param multimap the multimap whose contents are copied to this multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       LinkedHashMultimap<K, V> create(Multimap<? extends K, ? extends V> multimap) {
     LinkedHashMultimap<K, V> result = create(multimap.keySet().size(), DEFAULT_VALUE_SET_CAPACITY);
     result.putAll(multimap);
     return result;
   }
 
-  private interface ValueSetLink<K extends @Nullable Object, V extends @Nullable Object> {
-    ValueSetLink<K, V> getPredecessorInValueSet();
+  @ReceiverDependentMutable
+  private interface ValueSetLink<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> {
+    ValueSetLink<K, V> getPredecessorInValueSet(@Readonly ValueSetLink<K, V> this);
 
-    ValueSetLink<K, V> getSuccessorInValueSet();
+    ValueSetLink<K, V> getSuccessorInValueSet(@Readonly ValueSetLink<K, V> this);
 
-    void setPredecessorInValueSet(ValueSetLink<K, V> entry);
+    void setPredecessorInValueSet(@Mutable ValueSetLink<K, V> this, @Readonly ValueSetLink<K, V> entry);
 
-    void setSuccessorInValueSet(ValueSetLink<K, V> entry);
+    void setSuccessorInValueSet(@Mutable ValueSetLink<K, V> this, @Readonly ValueSetLink<K, V> entry);
   }
 
-  private static <K extends @Nullable Object, V extends @Nullable Object> void succeedsInValueSet(
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void succeedsInValueSet(
       ValueSetLink<K, V> pred, ValueSetLink<K, V> succ) {
     pred.setSuccessorInValueSet(succ);
     succ.setPredecessorInValueSet(pred);
   }
 
-  private static <K extends @Nullable Object, V extends @Nullable Object> void succeedsInMultimap(
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void succeedsInMultimap(
       ValueEntry<K, V> pred, ValueEntry<K, V> succ) {
     pred.setSuccessorInMultimap(succ);
     succ.setPredecessorInMultimap(pred);
   }
 
-  private static <K extends @Nullable Object, V extends @Nullable Object> void deleteFromValueSet(
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void deleteFromValueSet(
       ValueSetLink<K, V> entry) {
     succeedsInValueSet(entry.getPredecessorInValueSet(), entry.getSuccessorInValueSet());
   }
 
-  private static <K extends @Nullable Object, V extends @Nullable Object> void deleteFromMultimap(
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void deleteFromMultimap(
       ValueEntry<K, V> entry) {
     succeedsInMultimap(entry.getPredecessorInMultimap(), entry.getSuccessorInMultimap());
   }
@@ -168,7 +177,8 @@ private interface ValueSetLink<K extends @Nullable Object, V extends @Nullable O
    * whole.
    */
   @VisibleForTesting
-  static final class ValueEntry<K extends @Nullable Object, V extends @Nullable Object>
+  @Immutable
+  static final class ValueEntry<K extends @Nullable @Immutable Object, V extends @Readonly @Nullable Object>
       extends ImmutableEntry<K, V> implements ValueSetLink<K, V> {
     final int smearedValueHash;
 
@@ -198,64 +208,64 @@ static final class ValueEntry<K extends @Nullable Object, V extends @Nullable Ob
      * frameworks like Android that define post-construct hooks like Activity.onCreate, etc.
      */
 
-    @CheckForNull ValueSetLink<K, V> predecessorInValueSet;
-    @CheckForNull ValueSetLink<K, V> successorInValueSet;
+    @CheckForNull @Assignable ValueSetLink<K, V> predecessorInValueSet;
+    @CheckForNull @Assignable ValueSetLink<K, V> successorInValueSet;
 
-    @CheckForNull ValueEntry<K, V> predecessorInMultimap;
-    @CheckForNull ValueEntry<K, V> successorInMultimap;
+    @CheckForNull @Assignable ValueEntry<K, V> predecessorInMultimap;
+    @CheckForNull @Assignable ValueEntry<K, V> successorInMultimap;
 
     ValueEntry(
         @ParametricNullness K key,
         @ParametricNullness V value,
         int smearedValueHash,
-        @CheckForNull ValueEntry<K, V> nextInValueBucket) {
+        @CheckForNull @Immutable ValueEntry<K, V> nextInValueBucket) {
       super(key, value);
       this.smearedValueHash = smearedValueHash;
       this.nextInValueBucket = nextInValueBucket;
     }
 
     @SuppressWarnings("nullness") // see the comment on the class fields, especially about newHeader
-    static <K extends @Nullable Object, V extends @Nullable Object> ValueEntry<K, V> newHeader() {
+    static <K extends @Nullable @Immutable Object, V extends @Readonly @Nullable Object> ValueEntry<K, V> newHeader() {
       return new ValueEntry<>(null, null, 0, null);
     }
 
-    boolean matchesValue(@CheckForNull Object v, int smearedVHash) {
+    boolean matchesValue(@CheckForNull @Readonly Object v, int smearedVHash) {
       return smearedValueHash == smearedVHash && Objects.equal(getValue(), v);
     }
 
     @Override
-    public ValueSetLink<K, V> getPredecessorInValueSet() {
+    public @Immutable ValueSetLink<K, V> getPredecessorInValueSet() {
       return requireNonNull(predecessorInValueSet); // see the comment on the class fields
     }
 
     @Override
-    public ValueSetLink<K, V> getSuccessorInValueSet() {
+    public @Immutable ValueSetLink<K, V> getSuccessorInValueSet() {
       return requireNonNull(successorInValueSet); // see the comment on the class fields
     }
 
     @Override
-    public void setPredecessorInValueSet(ValueSetLink<K, V> entry) {
+    public void setPredecessorInValueSet(@Immutable ValueSetLink<K, V> entry) {
       predecessorInValueSet = entry;
     }
 
     @Override
-    public void setSuccessorInValueSet(ValueSetLink<K, V> entry) {
+    public void setSuccessorInValueSet(@Immutable ValueSetLink<K, V> entry) {
       successorInValueSet = entry;
     }
 
-    public ValueEntry<K, V> getPredecessorInMultimap() {
+    public @PolyMutable ValueEntry<K, V> getPredecessorInMultimap(@PolyMutable ValueEntry<K, V> this) {
       return requireNonNull(predecessorInMultimap); // see the comment on the class fields
     }
 
-    public ValueEntry<K, V> getSuccessorInMultimap() {
+    public @PolyMutable ValueEntry<K, V> getSuccessorInMultimap(@PolyMutable ValueEntry<K, V> this) {
       return requireNonNull(successorInMultimap); // see the comment on the class fields
     }
 
-    public void setSuccessorInMultimap(ValueEntry<K, V> multimapSuccessor) {
+    public void setSuccessorInMultimap(@Immutable ValueEntry<K, V> multimapSuccessor) {
       this.successorInMultimap = multimapSuccessor;
     }
 
-    public void setPredecessorInMultimap(ValueEntry<K, V> multimapPredecessor) {
+    public void setPredecessorInMultimap(@Immutable ValueEntry<K, V> multimapPredecessor) {
       this.predecessorInMultimap = multimapPredecessor;
     }
   }
@@ -268,7 +278,7 @@ public void setPredecessorInMultimap(ValueEntry<K, V> multimapPredecessor) {
   private transient ValueEntry<K, V> multimapHeaderEntry;
 
   private LinkedHashMultimap(int keyCapacity, int valueSetCapacity) {
-    super(Platform.<K, Collection<V>>newLinkedHashMapWithExpectedSize(keyCapacity));
+    super(Platform.<K, @ReceiverDependentMutable Collection<V>>newLinkedHashMapWithExpectedSize(keyCapacity));
     checkNonnegative(valueSetCapacity, "expectedValuesPerKey");
 
     this.valueSetCapacity = valueSetCapacity;
@@ -284,7 +294,7 @@ private LinkedHashMultimap(int keyCapacity, int valueSetCapacity) {
    * @return a new {@code LinkedHashSet} containing a collection of values for one key
    */
   @Override
-  Set<V> createCollection() {
+  Set<V> createCollection(@Readonly LinkedHashMultimap<K, V> this) {
     return Platform.newLinkedHashSetWithExpectedSize(valueSetCapacity);
   }
 
@@ -298,8 +308,8 @@ Set<V> createCollection() {
    * @return a new decorated set containing a collection of values for one key
    */
   @Override
-  Collection<V> createCollection(@ParametricNullness K key) {
-    return new ValueSet(key, valueSetCapacity);
+  @PolyMutable Collection<V> createCollection(@PolyMutable LinkedHashMultimap<K, V> this, @ParametricNullness K key) {
+    return new @PolyMutable ValueSet(key, valueSetCapacity);
   }
 
   /**
@@ -311,7 +321,7 @@ Collection<V> createCollection(@ParametricNullness K key) {
    */
   @CanIgnoreReturnValue
   @Override
-  public Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+  public @Readonly Set<V> replaceValues(@Mutable LinkedHashMultimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values) {
     return super.replaceValues(key, values);
   }
 
@@ -328,7 +338,7 @@ public Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> val
    */
   @SideEffectFree
   @Override
-  public Set<Entry<K, V>> entries() {
+  public @PolyMutable Set<Entry<K, V>> entries(@PolyMutable LinkedHashMultimap<K, V> this) {
     return super.entries();
   }
 
@@ -343,7 +353,7 @@ public Set<Entry<K, V>> entries() {
    * <i>adding</i> to the returned set is not possible.
    */
   @Override
-  public Set<K> keySet() {
+  public @PolyMutable Set<K> keySet(@PolyMutable LinkedHashMultimap<K, V> this) {
     return super.keySet();
   }
 
@@ -356,12 +366,13 @@ public Set<K> keySet() {
    */
   @SideEffectFree
   @Override
-  public Collection<V> values() {
+  public @PolyMutable Collection<V> values(@PolyMutable LinkedHashMultimap<K, V> this) {
     return super.values();
   }
 
   @VisibleForTesting
   @WeakOuter
+  @ReceiverDependentMutable
   final class ValueSet extends Sets.ImprovedAbstractSet<V> implements ValueSetLink<K, V> {
     /*
      * We currently use a fixed load factor of 1.0, a bit higher than normal to reduce memory
@@ -387,7 +398,7 @@ final class ValueSet extends Sets.ImprovedAbstractSet<V> implements ValueSetLink
 
       @SuppressWarnings({"rawtypes", "unchecked"})
       @Nullable
-      ValueEntry<K, V>[] hashTable = new @Nullable ValueEntry[tableSize];
+      ValueEntry<K, V>[] hashTable = new @Nullable ValueEntry @ReceiverDependentMutable [tableSize];
       this.hashTable = hashTable;
     }
 
@@ -395,28 +406,29 @@ private int mask() {
       return hashTable.length - 1;
     }
 
+    @CFComment("PICO: this is okay only if the field can not be directly accessed")
     @Override
-    public ValueSetLink<K, V> getPredecessorInValueSet() {
+    public @PolyMutable ValueSetLink<K, V> getPredecessorInValueSet(@PolyMutable ValueSet this) {
       return lastEntry;
     }
 
     @Override
-    public ValueSetLink<K, V> getSuccessorInValueSet() {
+    public @PolyMutable ValueSetLink<K, V> getSuccessorInValueSet(@PolyMutable ValueSet this) {
       return firstEntry;
     }
 
     @Override
-    public void setPredecessorInValueSet(ValueSetLink<K, V> entry) {
+    public void setPredecessorInValueSet(@Mutable ValueSet this, @Mutable ValueSetLink<K, V> entry) {
       lastEntry = entry;
     }
 
     @Override
-    public void setSuccessorInValueSet(ValueSetLink<K, V> entry) {
+    public void setSuccessorInValueSet(@Mutable ValueSet this, @Mutable ValueSetLink<K, V> entry) {
       firstEntry = entry;
     }
 
     @Override
-    public Iterator<V> iterator() {
+    public Iterator<V> iterator(@PolyMutable ValueSet this) {
       return new Iterator<V>() {
         ValueSetLink<K, V> nextEntry = firstEntry;
         @CheckForNull ValueEntry<K, V> toRemove;
@@ -469,12 +481,12 @@ public void forEach(Consumer<? super V> action) {
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly ValueSet this) {
       return size;
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly ValueSet this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       int smearedHash = Hashing.smearedHash(o);
       for (ValueEntry<K, V> entry = hashTable[smearedHash & mask()];
           entry != null;
@@ -487,7 +499,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public boolean add(@ParametricNullness V value) {
+    public boolean add(@Mutable ValueSet this, @ParametricNullness V value) {
       int smearedHash = Hashing.smearedHash(value);
       int bucket = smearedHash & mask();
       ValueEntry<K, V> rowHead = hashTable[bucket];
@@ -509,7 +521,7 @@ public boolean add(@ParametricNullness V value) {
       return true;
     }
 
-    private void rehashIfNecessary() {
+    private void rehashIfNecessary(@Mutable ValueSet this) {
       if (Hashing.needsResizing(size, hashTable.length, VALUE_SET_LOAD_FACTOR)) {
         @SuppressWarnings("unchecked")
         ValueEntry<K, V>[] hashTable = new ValueEntry[this.hashTable.length * 2];
@@ -528,7 +540,7 @@ private void rehashIfNecessary() {
 
     @CanIgnoreReturnValue
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable ValueSet this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       int smearedHash = Hashing.smearedHash(o);
       int bucket = smearedHash & mask();
       ValueEntry<K, V> prev = null;
@@ -553,7 +565,7 @@ public boolean remove(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable ValueSet this) {
       Arrays.fill(hashTable, null);
       size = 0;
       for (ValueSetLink<K, V> entry = firstEntry;
@@ -568,8 +580,8 @@ public void clear() {
   }
 
   @Override
-  Iterator<Entry<K, V>> entryIterator() {
-    return new Iterator<Entry<K, V>>() {
+  Iterator<@PolyMutable Entry<K, V>> entryIterator(@PolyMutable LinkedHashMultimap<K, V> this) {
+    return new Iterator<@PolyMutable Entry<K, V>>() {
       ValueEntry<K, V> nextEntry = multimapHeaderEntry.getSuccessorInMultimap();
       @CheckForNull ValueEntry<K, V> toRemove;
 
@@ -599,22 +611,22 @@ public void remove() {
   }
 
   @Override
-  Spliterator<Entry<K, V>> entrySpliterator() {
+  Spliterator<@PolyMutable Entry<K, V>> entrySpliterator(@PolyMutable LinkedHashMultimap<K, V> this) {
     return Spliterators.spliterator(entries(), Spliterator.DISTINCT | Spliterator.ORDERED);
   }
 
   @Override
-  Iterator<V> valueIterator() {
+  Iterator<V> valueIterator(@PolyMutable LinkedHashMultimap<K, V> this) {
     return Maps.valueIterator(entryIterator());
   }
 
   @Override
-  Spliterator<V> valueSpliterator() {
+  Spliterator<V> valueSpliterator(@PolyMutable LinkedHashMultimap<K, V> this) {
     return CollectSpliterators.map(entrySpliterator(), Entry::getValue);
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable LinkedHashMultimap<K, V> this) {
     super.clear();
     succeedsInMultimap(multimapHeaderEntry, multimapHeaderEntry);
   }
@@ -669,8 +681,8 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
   private static final long serialVersionUID = 1;
 
 @Override
-public boolean equals(@Nullable Object arg0) { return super.equals(arg0); }
+public boolean equals(@Readonly LinkedHashMultimap<K, V> this, @Nullable @Readonly Object arg0) { return super.equals(arg0); }
 
 @Override
-public Set<V> removeAll(@Nullable Object arg0) { return super.removeAll(arg0); }
+public @Readonly Set<V> removeAll(@Mutable LinkedHashMultimap<K, V> this, @Nullable @Readonly Object arg0) { return super.removeAll(arg0); }
 }
diff --git a/guava/src/com/google/common/collect/LinkedHashMultimapGwtSerializationDependencies.java b/guava/src/com/google/common/collect/LinkedHashMultimapGwtSerializationDependencies.java
index bb4a2e490e45..ee65065bd121 100644
--- a/guava/src/com/google/common/collect/LinkedHashMultimapGwtSerializationDependencies.java
+++ b/guava/src/com/google/common/collect/LinkedHashMultimapGwtSerializationDependencies.java
@@ -19,6 +19,9 @@
 import com.google.common.annotations.GwtCompatible;
 import java.util.Collection;
 import java.util.Map;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A dummy superclass to support GWT serialization of the element types of a {@link
@@ -29,10 +32,12 @@
  *
  * <p>TODO(cpovirk): Consider applying this subclass approach to our other types.
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
-abstract class LinkedHashMultimapGwtSerializationDependencies<K, V>
+@ReceiverDependentMutable
+abstract class LinkedHashMultimapGwtSerializationDependencies<K extends @Immutable Object, V>
     extends AbstractSetMultimap<K, V> {
-  LinkedHashMultimapGwtSerializationDependencies(Map<K, Collection<V>> map) {
+  LinkedHashMultimapGwtSerializationDependencies(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map) {
     super(map);
   }
 }
diff --git a/guava/src/com/google/common/collect/LinkedHashMultiset.java b/guava/src/com/google/common/collect/LinkedHashMultiset.java
index 18192831e65c..3e066b2b1016 100644
--- a/guava/src/com/google/common/collect/LinkedHashMultiset.java
+++ b/guava/src/com/google/common/collect/LinkedHashMultiset.java
@@ -25,6 +25,9 @@
 import java.util.LinkedHashMap;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -46,11 +49,12 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class LinkedHashMultiset<E extends @Nullable Object>
+@ReceiverDependentMutable
+public final class LinkedHashMultiset<E extends @Nullable @Immutable Object>
     extends AbstractMapBasedMultiset<E> {
 
   /** Creates a new, empty {@code LinkedHashMultiset} using the default initial capacity. */
-  public static <E extends @Nullable Object> LinkedHashMultiset<E> create() {
+  public static <E extends @Nullable @Immutable Object> LinkedHashMultiset<E> create() {
     return new LinkedHashMultiset<E>();
   }
 
@@ -61,7 +65,7 @@ public final class LinkedHashMultiset<E extends @Nullable Object>
    * @param distinctElements the expected number of distinct elements
    * @throws IllegalArgumentException if {@code distinctElements} is negative
    */
-  public static <E extends @Nullable Object> LinkedHashMultiset<E> create(int distinctElements) {
+  public static <E extends @Nullable @Immutable Object> LinkedHashMultiset<E> create(int distinctElements) {
     return new LinkedHashMultiset<E>(distinctElements);
   }
 
@@ -72,7 +76,7 @@ public final class LinkedHashMultiset<E extends @Nullable Object>
    *
    * @param elements the elements that the multiset should contain
    */
-  public static <E extends @Nullable Object> LinkedHashMultiset<E> create(
+  public static <E extends @Nullable @Immutable Object> LinkedHashMultiset<E> create(
       Iterable<? extends E> elements) {
     LinkedHashMultiset<E> multiset = create(Multisets.inferDistinctElements(elements));
     Iterables.addAll(multiset, elements);
@@ -110,15 +114,15 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
 
   @Pure
   @Override
-  public boolean contains(@Nullable @UnknownSignedness Object arg0) { return super.contains(arg0); }
+  public boolean contains(@Nullable @UnknownSignedness @Readonly Object arg0) { return super.contains(arg0); }
 
   @Override
-  public @NonNegative int count(@Nullable @UnknownSignedness Object arg0) { return super.count(arg0); }
+  public @NonNegative int count(@Nullable @UnknownSignedness @Readonly Object arg0) { return super.count(arg0); }
 
   @Override
-  public int remove(@Nullable Object arg0, int arg1) { return super.remove(arg0, arg1); }
+  public int remove(@Nullable @Readonly Object arg0, int arg1) { return super.remove(arg0, arg1); }
 
   @Pure
   @Override
-  public boolean containsAll(Collection<?> arg0) { return super.containsAll(arg0); }
+  public boolean containsAll(@Readonly Collection<?> arg0) { return super.containsAll(arg0); }
 }
diff --git a/guava/src/com/google/common/collect/LinkedListMultimap.java b/guava/src/com/google/common/collect/LinkedListMultimap.java
index 680b9e61d08c..1f725506033a 100644
--- a/guava/src/com/google/common/collect/LinkedListMultimap.java
+++ b/guava/src/com/google/common/collect/LinkedListMultimap.java
@@ -44,6 +44,11 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -103,7 +108,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public class LinkedListMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public class LinkedListMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractMultimap<K, V> implements ListMultimap<K, V>, Serializable {
   /*
    * Order is maintained using a linked list containing all key-value pairs. In
@@ -112,7 +118,8 @@ public class LinkedListMultimap<K extends @Nullable Object, V extends @Nullable
    * ValueForKeyIterator} in constant time.
    */
 
-  private static final class Node<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static final class Node<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractMapEntry<K, V> {
     @ParametricNullness final K key;
     @ParametricNullness V value;
@@ -147,7 +154,7 @@ public V setValue(@ParametricNullness V newValue) {
     }
   }
 
-  private static class KeyList<K extends @Nullable Object, V extends @Nullable Object> {
+  @ReceiverDependentMutable private static class KeyList<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> {
     Node<K, V> head;
     Node<K, V> tail;
     int count;
@@ -174,7 +181,7 @@ private static class KeyList<K extends @Nullable Object, V extends @Nullable Obj
   private transient int modCount;
 
   /** Creates a new, empty {@code LinkedListMultimap} with the default initial capacity. */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       LinkedListMultimap<K, V> create() {
     return new LinkedListMultimap<>();
   }
@@ -186,7 +193,7 @@ LinkedListMultimap<K, V> create() {
    * @param expectedKeys the expected number of distinct keys
    * @throws IllegalArgumentException if {@code expectedKeys} is negative
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       LinkedListMultimap<K, V> create(int expectedKeys) {
     return new LinkedListMultimap<>(expectedKeys);
   }
@@ -198,7 +205,7 @@ LinkedListMultimap<K, V> create(int expectedKeys) {
    *
    * @param multimap the multimap whose contents are copied to this multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       LinkedListMultimap<K, V> create(Multimap<? extends K, ? extends V> multimap) {
     return new LinkedListMultimap<>(multimap);
   }
@@ -223,6 +230,7 @@ private LinkedListMultimap(Multimap<? extends K, ? extends V> multimap) {
    */
   @CanIgnoreReturnValue
   private Node<K, V> addNode(
+      @Mutable LinkedListMultimap<K,V> this,
       @ParametricNullness K key,
       @ParametricNullness V value,
       @CheckForNull Node<K, V> nextSibling) {
@@ -280,7 +288,7 @@ private Node<K, V> addNode(
    * Removes the specified node from the linked list. This method is only intended to be used from
    * the {@code Iterator} classes. See also {@link LinkedListMultimap#removeAllNodes(Object)}.
    */
-  private void removeNode(Node<K, V> node) {
+  private void removeNode(@Mutable LinkedListMultimap<K,V> this, @Readonly Node<K, V> node) {
     if (node.previous != null) {
       node.previous.next = node.next;
     } else { // node was head
@@ -323,16 +331,17 @@ private void removeNode(Node<K, V> node) {
   }
 
   /** Removes all nodes for the specified key. */
-  private void removeAllNodes(@ParametricNullness K key) {
+  private void removeAllNodes(@Mutable LinkedListMultimap<K,V> this, @ParametricNullness K key) {
     Iterators.clear(new ValueForKeyIterator(key));
   }
 
   /** An {@code Iterator} over all nodes. */
+  @ReceiverDependentMutable
   private class NodeIterator implements ListIterator<Entry<K, V>> {
     int nextIndex;
-    @CheckForNull Node<K, V> next;
-    @CheckForNull Node<K, V> current;
-    @CheckForNull Node<K, V> previous;
+    @CheckForNull @Assignable Node<K, V> next;
+    @CheckForNull @Assignable Node<K, V> current;
+    @CheckForNull @Assignable Node<K, V> previous;
     int expectedModCount = modCount;
 
     NodeIterator(int index) {
@@ -379,7 +388,7 @@ public Node<K, V> next() {
     }
 
     @Override
-    public void remove() {
+    public void remove(@Mutable NodeIterator this) {
       checkForConcurrentModification();
       checkState(current != null, "no calls to next() since the last call to remove()");
       if (current != next) { // after call to next()
@@ -423,12 +432,12 @@ public Node<K, V> previous() {
     }
 
     @Override
-    public void set(Entry<K, V> e) {
+    public void set(@Mutable NodeIterator this, Entry<K, V> e) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public void add(Entry<K, V> e) {
+    public void add(@Mutable NodeIterator this, Entry<K, V> e) {
       throw new UnsupportedOperationException();
     }
 
@@ -439,10 +448,10 @@ void setValue(@ParametricNullness V value) {
   }
 
   /** An {@code Iterator} over distinct keys in key head order. */
-  private class DistinctKeyIterator implements Iterator<K> {
+  @ReceiverDependentMutable private class DistinctKeyIterator implements Iterator<K> {
     final Set<K> seenKeys = Sets.<K>newHashSetWithExpectedSize(keySet().size());
-    @CheckForNull Node<K, V> next = head;
-    @CheckForNull Node<K, V> current;
+    @CheckForNull @Assignable Node<K, V> next = head;
+    @CheckForNull @Assignable Node<K, V> current;
     int expectedModCount = modCount;
 
     private void checkForConcurrentModification() {
@@ -486,9 +495,9 @@ public void remove() {
   private class ValueForKeyIterator implements ListIterator<V> {
     @ParametricNullness final K key;
     int nextIndex;
-    @CheckForNull Node<K, V> next;
-    @CheckForNull Node<K, V> current;
-    @CheckForNull Node<K, V> previous;
+    @CheckForNull @Assignable Node<K, V> next;
+    @CheckForNull @Assignable Node<K, V> current;
+    @CheckForNull @Assignable Node<K, V> previous;
 
     /** Constructs a new iterator over all values for the specified key. */
     ValueForKeyIterator(@ParametricNullness K key) {
@@ -635,7 +644,7 @@ public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
    */
   @CanIgnoreReturnValue
   @Override
-  public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
+  public boolean put(@Mutable LinkedListMultimap<K,V> this, @ParametricNullness K key, @ParametricNullness V value) {
     addNode(key, value, null);
     return true;
   }
@@ -652,7 +661,7 @@ public boolean put(@ParametricNullness K key, @ParametricNullness V value) {
    */
   @CanIgnoreReturnValue
   @Override
-  public List<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+  public List<V> replaceValues(@Mutable LinkedListMultimap<K,V> this, @ParametricNullness K key, Iterable<? extends V> values) {
     List<V> oldValues = getCopy(key);
     ListIterator<V> keyValues = new ValueForKeyIterator(key);
     Iterator<? extends V> newValues = values.iterator();
@@ -688,7 +697,7 @@ private List<V> getCopy(@ParametricNullness K key) {
    */
   @CanIgnoreReturnValue
   @Override
-  public List<V> removeAll(@Nullable Object key) {
+  public List<V> removeAll(@Mutable LinkedListMultimap<K,V> this, @Nullable @Readonly Object key) {
     /*
      * Safe because all we do is remove values for the key, not add them. (If we wanted to make sure
      * to call getCopy and removeAllNodes only with a true K, then we could check containsKey first.
@@ -702,7 +711,7 @@ public List<V> removeAll(@Nullable Object key) {
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable LinkedListMultimap<K,V> this) {
     head = null;
     tail = null;
     keyToKeyList.clear();
@@ -912,8 +921,8 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
 public boolean equals(@Nullable Object arg0) { return super.equals(arg0); }
 
 @Override
-public boolean remove(@Nullable Object arg0, @Nullable Object arg1) { return super.remove(arg0, arg1); }
+public boolean remove(@Mutable LinkedListMultimap<K,V> this, @Nullable @Readonly Object arg0, @Nullable @Readonly Object arg1) { return super.remove(arg0, arg1); }
 
 @Override
-public Map<K, Collection<V>> asMap() { return super.asMap(); }
+public @ReceiverDependentMutable Map<K, Collection<V>> asMap() { return super.asMap(); }
 }
diff --git a/guava/src/com/google/common/collect/ListMultimap.java b/guava/src/com/google/common/collect/ListMultimap.java
index 1dd9917d9229..f0708a191a37 100644
--- a/guava/src/com/google/common/collect/ListMultimap.java
+++ b/guava/src/com/google/common/collect/ListMultimap.java
@@ -23,6 +23,11 @@
 import java.util.Map;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -44,7 +49,8 @@
 @GwtCompatible
 @AnnotatedFor({"nullness"})
 @ElementTypesAreNonnullByDefault
-public interface ListMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public interface ListMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends Multimap<K, V> {
   /**
    * {@inheritDoc}
@@ -54,7 +60,7 @@ public interface ListMultimap<K extends @Nullable Object, V extends @Nullable Ob
    * the {@link Multimap} interface.
    */
   @Override
-  List<V> get(@ParametricNullness K key);
+  @ReceiverDependentMutable List<V> get(@Readonly ListMultimap<K,V> this, @ParametricNullness K key);
 
   /**
    * {@inheritDoc}
@@ -65,7 +71,7 @@ public interface ListMultimap<K extends @Nullable Object, V extends @Nullable Ob
    */
   @CanIgnoreReturnValue
   @Override
-  List<V> removeAll(@CheckForNull Object key);
+  @ReceiverDependentMutable List<V> removeAll(@Mutable ListMultimap<K,V> this, @CheckForNull @Readonly Object key);
 
   /**
    * {@inheritDoc}
@@ -76,7 +82,7 @@ public interface ListMultimap<K extends @Nullable Object, V extends @Nullable Ob
    */
   @CanIgnoreReturnValue
   @Override
-  List<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values);
+  @ReceiverDependentMutable List<V> replaceValues(@Mutable ListMultimap<K,V> this, @ParametricNullness K key, Iterable<? extends V> values);
 
   /**
    * {@inheritDoc}
@@ -86,7 +92,7 @@ public interface ListMultimap<K extends @Nullable Object, V extends @Nullable Ob
    * Multimaps#asMap(ListMultimap)} instead.
    */
   @Override
-  Map<K, Collection<V>> asMap();
+  @PolyMutable Map<K, Collection<V>> asMap(@PolyMutable ListMultimap<K,V> this);
 
   /**
    * Compares the specified object to this multimap for equality.
@@ -99,5 +105,5 @@ public interface ListMultimap<K extends @Nullable Object, V extends @Nullable Ob
    */
   @Pure
   @Override
-  boolean equals(@CheckForNull Object obj);
+  boolean equals(@Readonly ListMultimap<K,V> this, @CheckForNull @Readonly Object obj);
 }
diff --git a/guava/src/com/google/common/collect/Lists.java b/guava/src/com/google/common/collect/Lists.java
index 3e3df72119cb..f2b20610187b 100644
--- a/guava/src/com/google/common/collect/Lists.java
+++ b/guava/src/com/google/common/collect/Lists.java
@@ -52,6 +52,11 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -68,7 +73,7 @@
  * @author Louis Wasserman
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
 public final class Lists {
@@ -86,7 +91,7 @@ private Lists() {}
    * advantage of <a href="http://goo.gl/iz2Wi">"diamond" syntax</a>.
    */
   @GwtCompatible(serializable = true)
-  public static <E extends @Nullable Object> ArrayList<E> newArrayList() {
+  public static <E extends @Nullable @Readonly Object> ArrayList<E> newArrayList() {
     return new ArrayList<>();
   }
 
@@ -106,7 +111,7 @@ private Lists() {}
    */
   @SafeVarargs
   @GwtCompatible(serializable = true)
-  public static <E extends @Nullable Object> ArrayList<E> newArrayList(E... elements) {
+  public static <E extends @Nullable @Readonly Object> ArrayList<E> newArrayList(E... elements) {
     checkNotNull(elements); // for GWT
     // Avoid integer overflow when a large array is passed in
     int capacity = computeArrayListCapacity(elements.length);
@@ -128,7 +133,7 @@ private Lists() {}
    * advantage of <a href="http://goo.gl/iz2Wi">"diamond" syntax</a>.
    */
   @GwtCompatible(serializable = true)
-  public static <E extends @Nullable Object> ArrayList<E> newArrayList(
+  public static <E extends @Nullable @Readonly Object> ArrayList<E> newArrayList(
       Iterable<? extends E> elements) {
     checkNotNull(elements); // for GWT
     // Let ArrayList's sizing logic work, if possible
@@ -145,7 +150,7 @@ private Lists() {}
    * ImmutableList#copyOf(Iterator)} instead.
    */
   @GwtCompatible(serializable = true)
-  public static <E extends @Nullable Object> ArrayList<E> newArrayList(
+  public static <E extends @Nullable @Readonly Object> ArrayList<E> newArrayList(
       Iterator<? extends E> elements) {
     ArrayList<E> list = newArrayList();
     Iterators.addAll(list, elements);
@@ -177,7 +182,7 @@ static int computeArrayListCapacity(int arraySize) {
    * @throws IllegalArgumentException if {@code initialArraySize} is negative
    */
   @GwtCompatible(serializable = true)
-  public static <E extends @Nullable Object> ArrayList<E> newArrayListWithCapacity(
+  public static <E extends @Nullable @Readonly Object> ArrayList<E> newArrayListWithCapacity(
       int initialArraySize) {
     checkNonnegative(initialArraySize, "initialArraySize"); // for GWT.
     return new ArrayList<>(initialArraySize);
@@ -197,7 +202,7 @@ static int computeArrayListCapacity(int arraySize) {
    * @throws IllegalArgumentException if {@code estimatedSize} is negative
    */
   @GwtCompatible(serializable = true)
-  public static <E extends @Nullable Object> ArrayList<E> newArrayListWithExpectedSize(
+  public static <E extends @Nullable @Readonly Object> ArrayList<E> newArrayListWithExpectedSize(
       int estimatedSize) {
     return new ArrayList<>(computeArrayListCapacity(estimatedSize));
   }
@@ -219,7 +224,7 @@ static int computeArrayListCapacity(int arraySize) {
    * advantage of <a href="http://goo.gl/iz2Wi">"diamond" syntax</a>.
    */
   @GwtCompatible(serializable = true)
-  public static <E extends @Nullable Object> LinkedList<E> newLinkedList() {
+  public static <E extends @Nullable @Readonly Object> LinkedList<E> newLinkedList() {
     return new LinkedList<>();
   }
 
@@ -240,7 +245,7 @@ static int computeArrayListCapacity(int arraySize) {
    * taking advantage of <a href="http://goo.gl/iz2Wi">"diamond" syntax</a>.
    */
   @GwtCompatible(serializable = true)
-  public static <E extends @Nullable Object> LinkedList<E> newLinkedList(
+  public static <E extends @Nullable @Readonly Object> LinkedList<E> newLinkedList(
       Iterable<? extends E> elements) {
     LinkedList<E> list = newLinkedList();
     Iterables.addAll(list, elements);
@@ -257,7 +262,7 @@ static int computeArrayListCapacity(int arraySize) {
    * @since 12.0
    */
   @GwtIncompatible // CopyOnWriteArrayList
-  public static <E extends @Nullable Object> CopyOnWriteArrayList<E> newCopyOnWriteArrayList() {
+  public static <E extends @Nullable @Readonly Object> CopyOnWriteArrayList<E> newCopyOnWriteArrayList() {
     return new CopyOnWriteArrayList<>();
   }
 
@@ -269,7 +274,7 @@ static int computeArrayListCapacity(int arraySize) {
    * @since 12.0
    */
   @GwtIncompatible // CopyOnWriteArrayList
-  public static <E extends @Nullable Object> CopyOnWriteArrayList<E> newCopyOnWriteArrayList(
+  public static <E extends @Nullable @Readonly Object> CopyOnWriteArrayList<E> newCopyOnWriteArrayList(
       Iterable<? extends E> elements) {
     // We copy elements to an ArrayList first, rather than incurring the
     // quadratic cost of adding them to the COWAL directly.
@@ -294,7 +299,7 @@ static int computeArrayListCapacity(int arraySize) {
    * @param rest an array of additional elements, possibly empty
    * @return an unmodifiable list containing the specified elements
    */
-  public static <E extends @Nullable Object> List<E> asList(@ParametricNullness E first, E[] rest) {
+  public static <E extends @Nullable @Readonly Object> List<E> asList(@ParametricNullness E first, E[] rest) {
     return new OnePlusArrayList<>(first, rest);
   }
 
@@ -314,31 +319,32 @@ static int computeArrayListCapacity(int arraySize) {
    * @param rest an array of additional elements, possibly empty
    * @return an unmodifiable list containing the specified elements
    */
-  public static <E extends @Nullable Object> List<E> asList(
+  public static <E extends @Nullable @Readonly Object> List<E> asList(
       @ParametricNullness E first, @ParametricNullness E second, E[] rest) {
     return new TwoPlusArrayList<>(first, second, rest);
   }
 
   /** @see Lists#asList(Object, Object[]) */
-  private static class OnePlusArrayList<E extends @Nullable Object> extends AbstractList<E>
+  @ReceiverDependentMutable
+  private static class OnePlusArrayList<E extends @Nullable @Readonly Object> extends AbstractList<E>
       implements Serializable, RandomAccess {
     @ParametricNullness final E first;
     final E[] rest;
 
-    OnePlusArrayList(@ParametricNullness E first, E[] rest) {
+    OnePlusArrayList(@ParametricNullness E first, E @ReceiverDependentMutable [] rest) {
       this.first = first;
       this.rest = checkNotNull(rest);
     }
 
     @Pure
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly OnePlusArrayList<E> this) {
       return IntMath.saturatedAdd(rest.length, 1);
     }
 
     @Override
     @ParametricNullness
-    public E get(int index) {
+    public E get(@Readonly OnePlusArrayList<E> this, int index) {
       // check explicitly so the IOOBE will have the right message
       checkElementIndex(index, size());
       return (index == 0) ? first : rest[index - 1];
@@ -348,13 +354,14 @@ public E get(int index) {
   }
 
   /** @see Lists#asList(Object, Object, Object[]) */
-  private static class TwoPlusArrayList<E extends @Nullable Object> extends AbstractList<E>
+  @ReceiverDependentMutable
+  private static class TwoPlusArrayList<E extends @Nullable @Readonly Object> extends AbstractList<E>
       implements Serializable, RandomAccess {
     @ParametricNullness final E first;
     @ParametricNullness final E second;
     final E[] rest;
 
-    TwoPlusArrayList(@ParametricNullness E first, @ParametricNullness E second, E[] rest) {
+    TwoPlusArrayList(@ParametricNullness E first, @ParametricNullness E second, E @ReceiverDependentMutable [] rest) {
       this.first = first;
       this.second = second;
       this.rest = checkNotNull(rest);
@@ -362,13 +369,13 @@ private static class TwoPlusArrayList<E extends @Nullable Object> extends Abstra
 
     @Pure
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly TwoPlusArrayList<E> this) {
       return IntMath.saturatedAdd(rest.length, 2);
     }
 
     @Override
     @ParametricNullness
-    public E get(int index) {
+    public E get(@Readonly TwoPlusArrayList<E> this, int index) {
       switch (index) {
         case 0:
           return first;
@@ -438,7 +445,7 @@ public E get(int index) {
    *     a provided list is null
    * @since 19.0
    */
-  public static <B> List<List<B>> cartesianProduct(List<? extends List<? extends B>> lists) {
+  public static <B> List<@Readonly List<B>> cartesianProduct(List<? extends @Readonly List<? extends B>> lists) {
     return CartesianList.create(lists);
   }
 
@@ -497,7 +504,7 @@ public static <B> List<List<B>> cartesianProduct(List<? extends List<? extends B
    * @since 19.0
    */
   @SafeVarargs
-  public static <B> List<List<B>> cartesianProduct(List<? extends B>... lists) {
+  public static <B> List<@Readonly List<B>> cartesianProduct(List<? extends B>... lists) {
     return cartesianProduct(Arrays.asList(lists));
   }
 
@@ -533,11 +540,11 @@ public static <B> List<List<B>> cartesianProduct(List<? extends B>... lists) {
    * java.util.stream.Stream#map}. This method is not being deprecated, but we gently encourage you
    * to migrate to streams.
    */
-  public static <F extends @Nullable Object, T extends @Nullable Object> List<T> transform(
-      List<F> fromList, Function<? super F, ? extends T> function) {
+  public static <F extends @Nullable @Readonly Object, T extends @Nullable @Readonly Object> List<T> transform(
+          @PolyMutable List<F> fromList, Function<? super F, ? extends T> function) {
     return (fromList instanceof RandomAccess)
-        ? new TransformingRandomAccessList<>(fromList, function)
-        : new TransformingSequentialList<>(fromList, function);
+        ? new @PolyMutable TransformingRandomAccessList<>(fromList, function)
+        : new @PolyMutable TransformingSequentialList<>(fromList, function);
   }
 
   /**
@@ -545,13 +552,14 @@ public static <B> List<List<B>> cartesianProduct(List<? extends B>... lists) {
    *
    * @see Lists#transform
    */
+  @ReceiverDependentMutable
   private static class TransformingSequentialList<
-          F extends @Nullable Object, T extends @Nullable Object>
+          F extends @Nullable @Readonly Object, T extends @Nullable @Readonly Object>
       extends AbstractSequentialList<T> implements Serializable {
     final List<F> fromList;
     final Function<? super F, ? extends T> function;
 
-    TransformingSequentialList(List<F> fromList, Function<? super F, ? extends T> function) {
+    TransformingSequentialList(@ReceiverDependentMutable List<F> fromList, Function<? super F, ? extends T> function) {
       this.fromList = checkNotNull(fromList);
       this.function = checkNotNull(function);
     }
@@ -561,18 +569,18 @@ private static class TransformingSequentialList<
      * can be overkill. That's why we forward this call directly to the backing list.
      */
     @Override
-    public void clear() {
+    public void clear(@Mutable TransformingSequentialList<F, T> this) {
       fromList.clear();
     }
 
     @Pure
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly TransformingSequentialList<F, T> this) {
       return fromList.size();
     }
 
     @Override
-    public ListIterator<T> listIterator(final int index) {
+    public ListIterator<T> listIterator(@Readonly TransformingSequentialList<F, T> this, final int index) {
       return new TransformedListIterator<F, T>(fromList.listIterator(index)) {
         @Override
         @ParametricNullness
@@ -583,7 +591,7 @@ T transform(@ParametricNullness F from) {
     }
 
     @Override
-    public boolean removeIf(Predicate<? super T> filter) {
+    public boolean removeIf(@Mutable TransformingSequentialList<F, T> this, Predicate<? super T> filter) {
       checkNotNull(filter);
       return fromList.removeIf(element -> filter.test(function.apply(element)));
     }
@@ -598,35 +606,36 @@ public boolean removeIf(Predicate<? super T> filter) {
    *
    * @see Lists#transform
    */
+  @ReceiverDependentMutable
   private static class TransformingRandomAccessList<
-          F extends @Nullable Object, T extends @Nullable Object>
+          F extends @Nullable @Readonly Object, T extends @Nullable @Readonly Object>
       extends AbstractList<T> implements RandomAccess, Serializable {
     final List<F> fromList;
     final Function<? super F, ? extends T> function;
 
-    TransformingRandomAccessList(List<F> fromList, Function<? super F, ? extends T> function) {
+    TransformingRandomAccessList(@ReceiverDependentMutable List<F> fromList, Function<? super F, ? extends T> function) {
       this.fromList = checkNotNull(fromList);
       this.function = checkNotNull(function);
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable TransformingRandomAccessList<F, T> this) {
       fromList.clear();
     }
 
     @Override
     @ParametricNullness
-    public T get(int index) {
+    public T get(@Readonly TransformingRandomAccessList<F, T> this, int index) {
       return function.apply(fromList.get(index));
     }
 
     @Override
-    public Iterator<T> iterator() {
+    public Iterator<T> iterator(@Readonly TransformingRandomAccessList<F, T> this) {
       return listIterator();
     }
 
     @Override
-    public ListIterator<T> listIterator(int index) {
+    public ListIterator<T> listIterator(@Readonly TransformingRandomAccessList<F, T> this, int index) {
       return new TransformedListIterator<F, T>(fromList.listIterator(index)) {
         @Override
         T transform(F from) {
@@ -637,25 +646,25 @@ T transform(F from) {
 
     @Pure
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly TransformingRandomAccessList<F, T> this) {
       return fromList.isEmpty();
     }
 
     @Override
-    public boolean removeIf(Predicate<? super T> filter) {
+    public boolean removeIf(@Mutable TransformingRandomAccessList<F, T> this, Predicate<? super T> filter) {
       checkNotNull(filter);
       return fromList.removeIf(element -> filter.test(function.apply(element)));
     }
 
     @Override
     @ParametricNullness
-    public T remove(int index) {
+    public T remove(@Mutable TransformingRandomAccessList<F, T> this, int index) {
       return function.apply(fromList.remove(index));
     }
 
     @Pure
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly TransformingRandomAccessList<F, T> this) {
       return fromList.size();
     }
 
@@ -677,7 +686,7 @@ public T remove(int index) {
    * @return a list of consecutive sublists
    * @throws IllegalArgumentException if {@code partitionSize} is nonpositive
    */
-  public static <T extends @Nullable Object> List<List<T>> partition(List<T> list, int size) {
+  public static <T extends @Nullable @Readonly Object> List<List<T>> partition(List<T> list, int size) {
     checkNotNull(list);
     checkArgument(size > 0);
     return (list instanceof RandomAccess)
@@ -685,17 +694,18 @@ public T remove(int index) {
         : new Partition<>(list, size);
   }
 
-  private static class Partition<T extends @Nullable Object> extends AbstractList<List<T>> {
+  @ReceiverDependentMutable
+  private static class Partition<T extends @Nullable @Readonly Object> extends AbstractList<List<T>> {
     final List<T> list;
     final int size;
 
-    Partition(List<T> list, int size) {
+    Partition(@ReceiverDependentMutable List<T> list, int size) {
       this.list = list;
       this.size = size;
     }
 
     @Override
-    public List<T> get(int index) {
+    public List<T> get(@Readonly Partition<T> this, int index) {
       checkElementIndex(index, size());
       int start = index * size;
       int end = Math.min(start + size, list.size());
@@ -704,20 +714,21 @@ public List<T> get(int index) {
 
     @Pure
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly Partition<T> this) {
       return IntMath.divide(list.size(), size, RoundingMode.CEILING);
     }
 
     @Pure
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly Partition<T> this) {
       return list.isEmpty();
     }
   }
 
-  private static class RandomAccessPartition<T extends @Nullable Object> extends Partition<T>
+  @ReceiverDependentMutable
+  private static class RandomAccessPartition<T extends @Nullable @Readonly Object> extends Partition<T>
       implements RandomAccess {
-    RandomAccessPartition(List<T> list, int size) {
+    RandomAccessPartition(@ReceiverDependentMutable List<T> list, int size) {
       super(list, size);
     }
   }
@@ -746,6 +757,7 @@ public static List<Character> charactersOf(CharSequence sequence) {
   }
 
   @SuppressWarnings("serial") // serialized using ImmutableList serialization
+  @Immutable
   private static final class StringAsImmutableList extends ImmutableList<Character> {
 
     private final String string;
@@ -755,12 +767,12 @@ private static final class StringAsImmutableList extends ImmutableList<Character
     }
 
     @Override
-    public int indexOf(@CheckForNull @UnknownSignedness Object object) {
+    public int indexOf(@CheckForNull @UnknownSignedness @Readonly Object object) {
       return (object instanceof Character) ? string.indexOf((Character) object) : -1;
     }
 
     @Override
-    public int lastIndexOf(@CheckForNull @UnknownSignedness Object object) {
+    public int lastIndexOf(@CheckForNull @UnknownSignedness @Readonly Object object) {
       return (object instanceof Character) ? string.lastIndexOf((Character) object) : -1;
     }
 
@@ -787,6 +799,7 @@ public Character get(int index) {
     }
   }
 
+  @ReceiverDependentMutable
   private static final class CharSequenceAsList extends AbstractList<Character> {
     private final CharSequence sequence;
 
@@ -795,13 +808,13 @@ private static final class CharSequenceAsList extends AbstractList<Character> {
     }
 
     @Override
-    public Character get(int index) {
+    public Character get(@Readonly CharSequenceAsList this, int index) {
       checkElementIndex(index, size()); // for GWT
       return sequence.charAt(index);
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly CharSequenceAsList this) {
       return sequence.length();
     }
   }
@@ -817,7 +830,7 @@ public Character get(int index) {
    *
    * @since 7.0
    */
-  public static <T extends @Nullable Object> List<T> reverse(List<T> list) {
+  public static <T extends @Nullable @Readonly Object> List<T> reverse(List<T> list) {
     if (list instanceof ImmutableList) {
       // Avoid nullness warnings.
       List<?> reversed = ((ImmutableList<?>) list).reverse();
@@ -833,80 +846,81 @@ public Character get(int index) {
     }
   }
 
-  private static class ReverseList<T extends @Nullable Object> extends AbstractList<T> {
+  @ReceiverDependentMutable
+  private static class ReverseList<T extends @Nullable @Readonly Object> extends AbstractList<T> {
     private final List<T> forwardList;
 
-    ReverseList(List<T> forwardList) {
+    ReverseList(@ReceiverDependentMutable List<T> forwardList) {
       this.forwardList = checkNotNull(forwardList);
     }
 
-    List<T> getForwardList() {
+    @PolyMutable List<T> getForwardList(@PolyMutable ReverseList<T> this) {
       return forwardList;
     }
 
-    private int reverseIndex(int index) {
+    private int reverseIndex(@Readonly ReverseList<T> this, int index) {
       int size = size();
       checkElementIndex(index, size);
       return (size - 1) - index;
     }
 
-    private int reversePosition(int index) {
+    private int reversePosition(@Readonly ReverseList<T> this, int index) {
       int size = size();
       checkPositionIndex(index, size);
       return size - index;
     }
 
     @Override
-    public void add(int index, @ParametricNullness T element) {
+    public void add(@Mutable ReverseList<T> this, int index, @ParametricNullness T element) {
       forwardList.add(reversePosition(index), element);
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable ReverseList<T> this) {
       forwardList.clear();
     }
 
     @Override
     @ParametricNullness
-    public T remove(int index) {
+    public T remove(@Mutable ReverseList<T> this, int index) {
       return forwardList.remove(reverseIndex(index));
     }
 
     @Override
-    protected void removeRange(int fromIndex, int toIndex) {
+    protected void removeRange(@Mutable ReverseList<T> this, int fromIndex, int toIndex) {
       subList(fromIndex, toIndex).clear();
     }
 
     @Override
     @ParametricNullness
-    public T set(int index, @ParametricNullness T element) {
+    public T set(@Mutable ReverseList<T> this, int index, @ParametricNullness T element) {
       return forwardList.set(reverseIndex(index), element);
     }
 
     @Override
     @ParametricNullness
-    public T get(int index) {
+    public T get(@Readonly ReverseList<T> this, int index) {
       return forwardList.get(reverseIndex(index));
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly ReverseList<T> this) {
       return forwardList.size();
     }
 
     @Override
-    public List<T> subList(int fromIndex, int toIndex) {
+    public @PolyMutable List<T> subList(@PolyMutable ReverseList<T> this, int fromIndex, int toIndex) {
       checkPositionIndexes(fromIndex, toIndex, size());
       return reverse(forwardList.subList(reversePosition(toIndex), reversePosition(fromIndex)));
     }
 
     @Override
-    public Iterator<T> iterator() {
+    public Iterator<T> iterator(@Readonly ReverseList<T> this) {
       return listIterator();
     }
 
     @Override
-    public ListIterator<T> listIterator(int index) {
+    public ListIterator<T> listIterator(@Readonly ReverseList<T> this, int index) {
       int start = reversePosition(index);
       final ListIterator<T> forwardIterator = forwardList.listIterator(start);
       return new ListIterator<T>() {
@@ -976,15 +990,16 @@ public void set(@ParametricNullness T e) {
     }
   }
 
-  private static class RandomAccessReverseList<T extends @Nullable Object> extends ReverseList<T>
+  @ReceiverDependentMutable
+  private static class RandomAccessReverseList<T extends @Nullable @Readonly Object> extends ReverseList<T>
       implements RandomAccess {
-    RandomAccessReverseList(List<T> forwardList) {
+    RandomAccessReverseList(@ReceiverDependentMutable List<T> forwardList) {
       super(forwardList);
     }
   }
 
   /** An implementation of {@link List#hashCode()}. */
-  static int hashCodeImpl(List<?> list) {
+  static int hashCodeImpl(@Readonly List<?> list) {
     // TODO(lowasser): worth optimizing for RandomAccess?
     int hashCode = 1;
     for (Object o : list) {
@@ -997,7 +1012,7 @@ static int hashCodeImpl(List<?> list) {
   }
 
   /** An implementation of {@link List#equals(Object)}. */
-  static boolean equalsImpl(List<?> thisList, @CheckForNull @UnknownSignedness Object other) {
+  static boolean equalsImpl(@Readonly List<?> thisList, @CheckForNull @UnknownSignedness @Readonly Object other) {
     if (other == checkNotNull(thisList)) {
       return true;
     }
@@ -1023,8 +1038,8 @@ static boolean equalsImpl(List<?> thisList, @CheckForNull @UnknownSignedness Obj
   }
 
   /** An implementation of {@link List#addAll(int, Collection)}. */
-  static <E extends @Nullable Object> boolean addAllImpl(
-      List<E> list, int index, Iterable<? extends E> elements) {
+  static <E extends @Nullable @Readonly Object> boolean addAllImpl(
+          @Readonly List<E> list, int index, Iterable<? extends E> elements) {
     boolean changed = false;
     ListIterator<E> listIterator = list.listIterator(index);
     for (E e : elements) {
@@ -1035,7 +1050,7 @@ static boolean equalsImpl(List<?> thisList, @CheckForNull @UnknownSignedness Obj
   }
 
   /** An implementation of {@link List#indexOf(Object)}. */
-  static int indexOfImpl(List<?> list, @CheckForNull @UnknownSignedness Object element) {
+  static int indexOfImpl(@Readonly List<?> list, @CheckForNull @UnknownSignedness @Readonly Object element) {
     if (list instanceof RandomAccess) {
       return indexOfRandomAccess(list, element);
     } else {
@@ -1049,7 +1064,7 @@ static int indexOfImpl(List<?> list, @CheckForNull @UnknownSignedness Object ele
     }
   }
 
-  private static int indexOfRandomAccess(List<?> list, @CheckForNull Object element) {
+  private static int indexOfRandomAccess(@Readonly List<?> list, @CheckForNull @Readonly Object element) {
     int size = list.size();
     if (element == null) {
       for (int i = 0; i < size; i++) {
@@ -1068,7 +1083,7 @@ private static int indexOfRandomAccess(List<?> list, @CheckForNull Object elemen
   }
 
   /** An implementation of {@link List#lastIndexOf(Object)}. */
-  static int lastIndexOfImpl(List<?> list, @CheckForNull @UnknownSignedness Object element) {
+  static int lastIndexOfImpl(@Readonly List<?> list, @CheckForNull @UnknownSignedness @Readonly Object element) {
     if (list instanceof RandomAccess) {
       return lastIndexOfRandomAccess(list, element);
     } else {
@@ -1082,7 +1097,7 @@ static int lastIndexOfImpl(List<?> list, @CheckForNull @UnknownSignedness Object
     }
   }
 
-  private static int lastIndexOfRandomAccess(List<?> list, @CheckForNull Object element) {
+  private static int lastIndexOfRandomAccess(@Readonly List<?> list, @CheckForNull @Readonly Object element) {
     if (element == null) {
       for (int i = list.size() - 1; i >= 0; i--) {
         if (list.get(i) == null) {
@@ -1100,12 +1115,12 @@ private static int lastIndexOfRandomAccess(List<?> list, @CheckForNull Object el
   }
 
   /** Returns an implementation of {@link List#listIterator(int)}. */
-  static <E extends @Nullable Object> ListIterator<E> listIteratorImpl(List<E> list, int index) {
+  static <E extends @Nullable @Readonly Object> ListIterator<E> listIteratorImpl(List<E> list, int index) {
     return new AbstractListWrapper<>(list).listIterator(index);
   }
 
   /** An implementation of {@link List#subList(int, int)}. */
-  static <E extends @Nullable Object> List<E> subListImpl(
+  static <E extends @Nullable @Readonly Object> List<E> subListImpl(
       final List<E> list, int fromIndex, int toIndex) {
     List<E> wrapper;
     if (list instanceof RandomAccess) {
@@ -1132,61 +1147,63 @@ public ListIterator<E> listIterator(int index) {
     return wrapper.subList(fromIndex, toIndex);
   }
 
-  private static class AbstractListWrapper<E extends @Nullable Object> extends AbstractList<E> {
+  @ReceiverDependentMutable
+  private static class AbstractListWrapper<E extends @Nullable @Readonly Object> extends AbstractList<E> {
     final List<E> backingList;
 
-    AbstractListWrapper(List<E> backingList) {
+    AbstractListWrapper(@ReceiverDependentMutable List<E> backingList) {
       this.backingList = checkNotNull(backingList);
     }
 
     @Override
-    public void add(int index, @ParametricNullness E element) {
+    public void add(@Mutable AbstractListWrapper<E> this, int index, @ParametricNullness E element) {
       backingList.add(index, element);
     }
 
     @Override
-    public boolean addAll(int index, Collection<? extends E> c) {
+    public boolean addAll(@Mutable AbstractListWrapper<E> this, int index, @Readonly Collection<? extends E> c) {
       return backingList.addAll(index, c);
     }
 
     @Override
     @ParametricNullness
-    public E get(int index) {
+    public E get(@Readonly AbstractListWrapper<E> this, int index) {
       return backingList.get(index);
     }
 
     @Override
     @ParametricNullness
-    public E remove(int index) {
+    public E remove(@Mutable AbstractListWrapper<E> this, int index) {
       return backingList.remove(index);
     }
 
     @Override
     @ParametricNullness
-    public E set(int index, @ParametricNullness E element) {
+    public E set(@Mutable AbstractListWrapper<E> this, int index, @ParametricNullness E element) {
       return backingList.set(index, element);
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly AbstractListWrapper<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       return backingList.contains(o);
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly AbstractListWrapper<E> this) {
       return backingList.size();
     }
   }
 
-  private static class RandomAccessListWrapper<E extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class RandomAccessListWrapper<E extends @Nullable @Readonly Object>
       extends AbstractListWrapper<E> implements RandomAccess {
-    RandomAccessListWrapper(List<E> backingList) {
+    RandomAccessListWrapper(@ReceiverDependentMutable List<E> backingList) {
       super(backingList);
     }
   }
 
   /** Used to avoid http://bugs.sun.com/view_bug.do?bug_id=6558557 */
-  static <T extends @Nullable Object> List<T> cast(Iterable<T> iterable) {
+  static <T extends @Nullable @Readonly Object> List<T> cast(Iterable<T> iterable) {
     return (List<T>) iterable;
   }
 }
diff --git a/guava/src/com/google/common/collect/MapDifference.java b/guava/src/com/google/common/collect/MapDifference.java
index d6f2f0b4947b..61d6812c63b7 100644
--- a/guava/src/com/google/common/collect/MapDifference.java
+++ b/guava/src/com/google/common/collect/MapDifference.java
@@ -21,6 +21,8 @@
 import java.util.Map;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -35,7 +37,7 @@
 @GwtCompatible
 @AnnotatedFor({"nullness"})
 @ElementTypesAreNonnullByDefault
-public interface MapDifference<K extends @Nullable Object, V extends @Nullable Object> {
+public interface MapDifference<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> {
   /**
    * Returns {@code true} if there are no differences between the two maps; that is, if the maps are
    * equal.
@@ -95,7 +97,7 @@ public interface MapDifference<K extends @Nullable Object, V extends @Nullable O
    * @since 2.0
    */
   @DoNotMock("Use Maps.difference")
-  interface ValueDifference<V extends @Nullable Object> {
+  interface ValueDifference<V extends @Nullable @Readonly Object> {
     /** Returns the value from the left map (possibly null). */
     @ParametricNullness
     V leftValue();
diff --git a/guava/src/com/google/common/collect/MapMaker.java b/guava/src/com/google/common/collect/MapMaker.java
index 7f68df0aee19..9b6830b6c83b 100644
--- a/guava/src/com/google/common/collect/MapMaker.java
+++ b/guava/src/com/google/common/collect/MapMaker.java
@@ -33,6 +33,7 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -281,7 +282,7 @@ Strength getValueStrength() {
    *
    * @return a serializable concurrent map having the requested features
    */
-  public <K, V> ConcurrentMap<K, V> makeMap() {
+  public <K extends @Immutable Object, V> ConcurrentMap<K, V> makeMap() {
     if (!useCustomMap) {
       return new ConcurrentHashMap<>(getInitialCapacity(), 0.75f, getConcurrencyLevel());
     }
diff --git a/guava/src/com/google/common/collect/MapMakerInternalMap.java b/guava/src/com/google/common/collect/MapMakerInternalMap.java
index b4b1c8bc7a61..55c1e54694d1 100644
--- a/guava/src/com/google/common/collect/MapMakerInternalMap.java
+++ b/guava/src/com/google/common/collect/MapMakerInternalMap.java
@@ -23,6 +23,7 @@
 import com.google.common.collect.MapMaker.Dummy;
 import com.google.common.primitives.Ints;
 import com.google.errorprone.annotations.CanIgnoreReturnValue;
+//import com.google.errorprone.annotations.Immutable;
 import com.google.errorprone.annotations.concurrent.GuardedBy;
 import com.google.j2objc.annotations.Weak;
 import com.google.j2objc.annotations.WeakOuter;
@@ -51,6 +52,10 @@
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.framework.qual.CFComment;
@@ -76,8 +81,9 @@
   "nullness", // too much trouble for the payoff
 })
 // TODO(cpovirk): Annotate for nullness.
+@ReceiverDependentMutable
 class MapMakerInternalMap<
-        K,
+        K extends @Immutable Object,
         V,
         E extends MapMakerInternalMap.InternalEntry<K, V, E>,
         S extends MapMakerInternalMap.Segment<K, V, E, S>>
@@ -159,7 +165,7 @@ class MapMakerInternalMap<
   final int concurrencyLevel;
 
   /** Strategy for comparing keys. */
-  final Equivalence<Object> keyEquivalence;
+  final Equivalence<@Readonly Object> keyEquivalence;
 
   /** Strategy for handling entries and segments in a type-safe and efficient manner. */
   final transient InternalEntryHelper<K, V, E, S> entryHelper;
@@ -204,7 +210,7 @@ private MapMakerInternalMap(MapMaker builder, InternalEntryHelper<K, V, E, S> en
   }
 
   /** Returns a fresh {@link MapMakerInternalMap} as specified by the given {@code builder}. */
-  static <K, V> MapMakerInternalMap<K, V, ? extends InternalEntry<K, V, ?>, ?> create(
+  static <K extends @Immutable Object, V> MapMakerInternalMap<K, V, ? extends InternalEntry<K, V, ?>, ?> create(
       MapMaker builder) {
     if (builder.getKeyStrength() == Strength.STRONG
         && builder.getValueStrength() == Strength.STRONG) {
@@ -234,7 +240,7 @@ private MapMakerInternalMap(MapMaker builder, InternalEntryHelper<K, V, E, S> en
    * <p>This method is intended to only be used by the internal implementation of {@link Interners},
    * since a map of dummy values is the exact use case there.
    */
-  static <K>
+  static <K extends @Immutable Object>
       MapMakerInternalMap<K, Dummy, ? extends InternalEntry<K, Dummy, ?>, ?> createWithDummyValues(
           MapMaker builder) {
     if (builder.getKeyStrength() == Strength.STRONG
@@ -287,8 +293,9 @@ Equivalence<Object> defaultEquivalence() {
    * @param <E> the type of the {@link InternalEntry} entry implementation
    * @param <S> the type of the {@link Segment} entry implementation
    */
+  @ReceiverDependentMutable
   interface InternalEntryHelper<
-      K, V, E extends InternalEntry<K, V, E>, S extends Segment<K, V, E, S>> {
+      K extends @Immutable Object, V, E extends @Readonly InternalEntry<K, V, E>, S extends Segment<K, V, E, S>> {
     /** The strength of the key type in each entry. */
     Strength keyStrength();
 
@@ -325,7 +332,8 @@ interface InternalEntryHelper<
    *
    * <p>Invalid: - Collected: key/value was partially collected, but not yet cleaned up
    */
-  interface InternalEntry<K, V, E extends InternalEntry<K, V, E>> {
+  @ReceiverDependentMutable
+  interface InternalEntry<K extends @Immutable Object, V, E extends @Readonly InternalEntry<K, V, E>> {
     /** Gets the next entry in the chain. */
     E getNext();
 
@@ -345,7 +353,8 @@ interface InternalEntry<K, V, E extends InternalEntry<K, V, E>> {
    */
 
   /** Base class for {@link InternalEntry} implementations for strong keys. */
-  abstract static class AbstractStrongKeyEntry<K, V, E extends InternalEntry<K, V, E>>
+  @ReceiverDependentMutable
+  abstract static class AbstractStrongKeyEntry<K extends @Immutable Object, V, E extends @Readonly InternalEntry<K, V, E>>
       implements InternalEntry<K, V, E> {
     final K key;
     final int hash;
@@ -374,11 +383,13 @@ public E getNext() {
   }
 
   /** Marker interface for {@link InternalEntry} implementations for strong values. */
-  interface StrongValueEntry<K, V, E extends InternalEntry<K, V, E>>
+  @ReceiverDependentMutable
+  interface StrongValueEntry<K extends @Immutable Object, V, E extends @Readonly InternalEntry<K, V, E>>
       extends InternalEntry<K, V, E> {}
 
   /** Marker interface for {@link InternalEntry} implementations for weak values. */
-  interface WeakValueEntry<K, V, E extends InternalEntry<K, V, E>> extends InternalEntry<K, V, E> {
+  @ReceiverDependentMutable
+  interface WeakValueEntry<K extends @Immutable Object, V, E extends @Readonly InternalEntry<K, V, E>> extends InternalEntry<K, V, E> {
     /** Gets the weak value reference held by entry. */
     WeakValueReference<K, V, E> getValueReference();
 
@@ -390,13 +401,14 @@ interface WeakValueEntry<K, V, E extends InternalEntry<K, V, E>> extends Interna
   }
 
   @SuppressWarnings("unchecked") // impl never uses a parameter or returns any non-null value
-  static <K, V, E extends InternalEntry<K, V, E>>
+  static <K extends @Immutable Object, V, E extends @Readonly InternalEntry<K, V, E>>
       WeakValueReference<K, V, E> unsetWeakValueReference() {
     return (WeakValueReference<K, V, E>) UNSET_WEAK_VALUE_REFERENCE;
   }
 
   /** Concrete implementation of {@link InternalEntry} for strong keys and strong values. */
-  static final class StrongKeyStrongValueEntry<K, V>
+  @ReceiverDependentMutable
+  static final class StrongKeyStrongValueEntry<K extends @Immutable Object, V>
       extends AbstractStrongKeyEntry<K, V, StrongKeyStrongValueEntry<K, V>>
       implements StrongValueEntry<K, V, StrongKeyStrongValueEntry<K, V>> {
     private volatile @Nullable V value = null;
@@ -422,7 +434,7 @@ StrongKeyStrongValueEntry<K, V> copy(StrongKeyStrongValueEntry<K, V> newNext) {
     }
 
     /** Concrete implementation of {@link InternalEntryHelper} for strong keys and strong values. */
-    static final class Helper<K, V>
+    static final class Helper<K extends @Immutable Object, V>
         implements InternalEntryHelper<
             K, V, StrongKeyStrongValueEntry<K, V>, StrongKeyStrongValueSegment<K, V>> {
       private static final Helper<?, ?> INSTANCE = new Helper<>();
@@ -480,7 +492,8 @@ public StrongKeyStrongValueEntry<K, V> newEntry(
   }
 
   /** Concrete implementation of {@link InternalEntry} for strong keys and weak values. */
-  static final class StrongKeyWeakValueEntry<K, V>
+  @ReceiverDependentMutable
+  static final class StrongKeyWeakValueEntry<K extends @Immutable Object, V>
       extends AbstractStrongKeyEntry<K, V, StrongKeyWeakValueEntry<K, V>>
       implements WeakValueEntry<K, V, StrongKeyWeakValueEntry<K, V>> {
     private volatile WeakValueReference<K, V, StrongKeyWeakValueEntry<K, V>> valueReference =
@@ -519,7 +532,7 @@ public WeakValueReference<K, V, StrongKeyWeakValueEntry<K, V>> getValueReference
     }
 
     /** Concrete implementation of {@link InternalEntryHelper} for strong keys and weak values. */
-    static final class Helper<K, V>
+    static final class Helper<K extends @Immutable Object, V>
         implements InternalEntryHelper<
             K, V, StrongKeyWeakValueEntry<K, V>, StrongKeyWeakValueSegment<K, V>> {
       private static final Helper<?, ?> INSTANCE = new Helper<>();
@@ -577,7 +590,8 @@ public StrongKeyWeakValueEntry<K, V> newEntry(
   }
 
   /** Concrete implementation of {@link InternalEntry} for strong keys and {@link Dummy} values. */
-  static final class StrongKeyDummyValueEntry<K>
+  @ReceiverDependentMutable
+  static final class StrongKeyDummyValueEntry<K extends @Immutable Object>
       extends AbstractStrongKeyEntry<K, Dummy, StrongKeyDummyValueEntry<K>>
       implements StrongValueEntry<K, Dummy, StrongKeyDummyValueEntry<K>> {
     StrongKeyDummyValueEntry(K key, int hash, @Nullable StrongKeyDummyValueEntry<K> next) {
@@ -599,13 +613,13 @@ StrongKeyDummyValueEntry<K> copy(StrongKeyDummyValueEntry<K> newNext) {
      * Concrete implementation of {@link InternalEntryHelper} for strong keys and {@link Dummy}
      * values.
      */
-    static final class Helper<K>
+    static final class Helper<K extends @Immutable Object>
         implements InternalEntryHelper<
             K, Dummy, StrongKeyDummyValueEntry<K>, StrongKeyDummyValueSegment<K>> {
       private static final Helper<?> INSTANCE = new Helper<>();
 
       @SuppressWarnings("unchecked")
-      static <K> Helper<K> instance() {
+      static <K extends @Immutable Object> Helper<K> instance() {
         return (Helper<K>) INSTANCE;
       }
 
@@ -652,7 +666,8 @@ public StrongKeyDummyValueEntry<K> newEntry(
   }
 
   /** Base class for {@link InternalEntry} implementations for weak keys. */
-  abstract static class AbstractWeakKeyEntry<K, V, E extends InternalEntry<K, V, E>>
+  @ReceiverDependentMutable
+  abstract static class AbstractWeakKeyEntry<K extends @Immutable Object, V, E extends InternalEntry<K, V, E>>
       extends WeakReference<K> implements InternalEntry<K, V, E> {
     final int hash;
     final @Nullable E next;
@@ -680,7 +695,8 @@ public E getNext() {
   }
 
   /** Concrete implementation of {@link InternalEntry} for weak keys and {@link Dummy} values. */
-  static final class WeakKeyDummyValueEntry<K>
+  @ReceiverDependentMutable
+  static final class WeakKeyDummyValueEntry<K extends @Immutable Object>
       extends AbstractWeakKeyEntry<K, Dummy, WeakKeyDummyValueEntry<K>>
       implements StrongValueEntry<K, Dummy, WeakKeyDummyValueEntry<K>> {
     WeakKeyDummyValueEntry(
@@ -704,7 +720,7 @@ WeakKeyDummyValueEntry<K> copy(
      * Concrete implementation of {@link InternalEntryHelper} for weak keys and {@link Dummy}
      * values.
      */
-    static final class Helper<K>
+    static final class Helper<K extends @Immutable Object>
         implements InternalEntryHelper<
             K, Dummy, WeakKeyDummyValueEntry<K>, WeakKeyDummyValueSegment<K>> {
       private static final Helper<?> INSTANCE = new Helper<>();
@@ -760,7 +776,7 @@ public WeakKeyDummyValueEntry<K> newEntry(
   }
 
   /** Concrete implementation of {@link InternalEntry} for weak keys and strong values. */
-  static final class WeakKeyStrongValueEntry<K, V>
+  static final class WeakKeyStrongValueEntry<K extends @Immutable Object, V>
       extends AbstractWeakKeyEntry<K, V, WeakKeyStrongValueEntry<K, V>>
       implements StrongValueEntry<K, V, WeakKeyStrongValueEntry<K, V>> {
     private volatile @Nullable V value = null;
@@ -788,13 +804,13 @@ WeakKeyStrongValueEntry<K, V> copy(
     }
 
     /** Concrete implementation of {@link InternalEntryHelper} for weak keys and strong values. */
-    static final class Helper<K, V>
+    static final class Helper<K extends @Immutable Object, V>
         implements InternalEntryHelper<
             K, V, WeakKeyStrongValueEntry<K, V>, WeakKeyStrongValueSegment<K, V>> {
       private static final Helper<?, ?> INSTANCE = new Helper<>();
 
       @SuppressWarnings("unchecked")
-      static <K, V> Helper<K, V> instance() {
+      static <K extends @Immutable Object, V> Helper<K, V> instance() {
         return (Helper<K, V>) INSTANCE;
       }
 
@@ -847,7 +863,8 @@ public WeakKeyStrongValueEntry<K, V> newEntry(
   }
 
   /** Concrete implementation of {@link InternalEntry} for weak keys and weak values. */
-  static final class WeakKeyWeakValueEntry<K, V>
+  @ReceiverDependentMutable
+  static final class WeakKeyWeakValueEntry<K extends @Immutable Object, V>
       extends AbstractWeakKeyEntry<K, V, WeakKeyWeakValueEntry<K, V>>
       implements WeakValueEntry<K, V, WeakKeyWeakValueEntry<K, V>> {
     private volatile WeakValueReference<K, V, WeakKeyWeakValueEntry<K, V>> valueReference =
@@ -890,13 +907,13 @@ public WeakValueReference<K, V, WeakKeyWeakValueEntry<K, V>> getValueReference()
     }
 
     /** Concrete implementation of {@link InternalEntryHelper} for weak keys and weak values. */
-    static final class Helper<K, V>
+    static final class Helper<K extends @Immutable Object, V>
         implements InternalEntryHelper<
             K, V, WeakKeyWeakValueEntry<K, V>, WeakKeyWeakValueSegment<K, V>> {
       private static final Helper<?, ?> INSTANCE = new Helper<>();
 
       @SuppressWarnings("unchecked")
-      static <K, V> Helper<K, V> instance() {
+      static <K extends @Immutable Object, V> Helper<K, V> instance() {
         return (Helper<K, V>) INSTANCE;
       }
 
@@ -951,7 +968,8 @@ public WeakKeyWeakValueEntry<K, V> newEntry(
   }
 
   /** A weakly referenced value that also has a reference to its containing entry. */
-  interface WeakValueReference<K, V, E extends InternalEntry<K, V, E>> {
+  @ReceiverDependentMutable
+  interface WeakValueReference<K extends @Immutable Object, V, E extends InternalEntry<K, V, E>> {
     /**
      * Returns the current value being referenced, or {@code null} if there is none (e.g. because
      * either it got collected, or {@link #clear} was called, or it wasn't set in the first place).
@@ -976,8 +994,9 @@ interface WeakValueReference<K, V, E extends InternalEntry<K, V, E>> {
    * A dummy implementation of {@link InternalEntry}, solely for use in the type signature of {@link
    * #UNSET_WEAK_VALUE_REFERENCE} below.
    */
+  @ReceiverDependentMutable
   static final class DummyInternalEntry
-      implements InternalEntry<Object, Object, DummyInternalEntry> {
+      implements InternalEntry<@Immutable Object, Object, DummyInternalEntry> {
     private DummyInternalEntry() {
       throw new AssertionError();
     }
@@ -1007,8 +1026,8 @@ public Object getValue() {
    * A singleton {@link WeakValueReference} used to denote an unset value in a entry with weak
    * values.
    */
-  static final WeakValueReference<Object, Object, DummyInternalEntry> UNSET_WEAK_VALUE_REFERENCE =
-      new WeakValueReference<Object, Object, DummyInternalEntry>() {
+  static final WeakValueReference<@Immutable Object, Object, DummyInternalEntry> UNSET_WEAK_VALUE_REFERENCE =
+      new WeakValueReference<@Immutable Object, Object, DummyInternalEntry>() {
         @Override
         public DummyInternalEntry getEntry() {
           return null;
@@ -1030,7 +1049,8 @@ public WeakValueReference<Object, Object, DummyInternalEntry> copyFor(
       };
 
   /** Concrete implementation of {@link WeakValueReference}. */
-  static final class WeakValueReferenceImpl<K, V, E extends InternalEntry<K, V, E>>
+  @ReceiverDependentMutable
+  static final class WeakValueReferenceImpl<K extends @Immutable Object, V, E extends InternalEntry<K, V, E>>
       extends WeakReference<V> implements WeakValueReference<K, V, E> {
     @Weak final E entry;
 
@@ -1143,8 +1163,9 @@ final Segment<K, V, E, S>[] newSegmentArray(int ssize) {
    * opportunistically, just to simplify some locking and avoid separate construction.
    */
   @SuppressWarnings("serial") // This class is never serialized.
+  @ReceiverDependentMutable
   abstract static class Segment<
-          K, V, E extends InternalEntry<K, V, E>, S extends Segment<K, V, E, S>>
+          K extends @Immutable Object, V, E extends InternalEntry<K, V, E>, S extends Segment<K, V, E, S>>
       extends ReentrantLock {
 
     /*
@@ -2001,6 +2022,7 @@ void runLockedCleanup() {
   }
 
   /** Concrete implementation of {@link Segment} for strong keys and strong values. */
+  @ReceiverDependentMutable
   static final class StrongKeyStrongValueSegment<K, V>
       extends Segment<K, V, StrongKeyStrongValueEntry<K, V>, StrongKeyStrongValueSegment<K, V>> {
     StrongKeyStrongValueSegment(
@@ -2025,7 +2047,7 @@ public StrongKeyStrongValueEntry<K, V> castForTesting(InternalEntry<K, V, ?> ent
   }
 
   /** Concrete implementation of {@link Segment} for strong keys and weak values. */
-  static final class StrongKeyWeakValueSegment<K, V>
+  static final class StrongKeyWeakValueSegment<K extends @Immutable Object, V>
       extends Segment<K, V, StrongKeyWeakValueEntry<K, V>, StrongKeyWeakValueSegment<K, V>> {
     private final ReferenceQueue<V> queueForValues = new ReferenceQueue<V>();
 
@@ -2090,7 +2112,8 @@ void maybeClearReferenceQueues() {
   }
 
   /** Concrete implementation of {@link Segment} for strong keys and {@link Dummy} values. */
-  static final class StrongKeyDummyValueSegment<K>
+  @ReceiverDependentMutable
+  static final class StrongKeyDummyValueSegment<K extends @Immutable Object>
       extends Segment<K, Dummy, StrongKeyDummyValueEntry<K>, StrongKeyDummyValueSegment<K>> {
     StrongKeyDummyValueSegment(
         MapMakerInternalMap<K, Dummy, StrongKeyDummyValueEntry<K>, StrongKeyDummyValueSegment<K>>
@@ -2113,7 +2136,8 @@ public StrongKeyDummyValueEntry<K> castForTesting(InternalEntry<K, Dummy, ?> ent
   }
 
   /** Concrete implementation of {@link Segment} for weak keys and strong values. */
-  static final class WeakKeyStrongValueSegment<K, V>
+  @ReceiverDependentMutable
+  static final class WeakKeyStrongValueSegment<K extends @Immutable Object, V>
       extends Segment<K, V, WeakKeyStrongValueEntry<K, V>, WeakKeyStrongValueSegment<K, V>> {
     private final ReferenceQueue<K> queueForKeys = new ReferenceQueue<K>();
 
@@ -2153,7 +2177,8 @@ void maybeClearReferenceQueues() {
   }
 
   /** Concrete implementation of {@link Segment} for weak keys and weak values. */
-  static final class WeakKeyWeakValueSegment<K, V>
+  @ReceiverDependentMutable
+  static final class WeakKeyWeakValueSegment<K extends @Immutable Object, V>
       extends Segment<K, V, WeakKeyWeakValueEntry<K, V>, WeakKeyWeakValueSegment<K, V>> {
     private final ReferenceQueue<K> queueForKeys = new ReferenceQueue<K>();
     private final ReferenceQueue<V> queueForValues = new ReferenceQueue<V>();
@@ -2224,6 +2249,7 @@ void maybeClearReferenceQueues() {
   }
 
   /** Concrete implementation of {@link Segment} for weak keys and {@link Dummy} values. */
+  @ReceiverDependentMutable
   static final class WeakKeyDummyValueSegment<K>
       extends Segment<K, Dummy, WeakKeyDummyValueEntry<K>, WeakKeyDummyValueSegment<K>> {
     private final ReferenceQueue<K> queueForKeys = new ReferenceQueue<K>();
@@ -2293,7 +2319,7 @@ Strength valueStrength() {
   }
 
   @VisibleForTesting
-  Equivalence<Object> valueEquivalence() {
+  Equivalence<@Readonly Object> valueEquivalence() {
     return entryHelper.valueStrength().defaultEquivalence();
   }
 
@@ -2506,6 +2532,7 @@ public Collection<V> values() {
 
   // Iterator Support
 
+  @ReceiverDependentMutable
   abstract class HashIterator<T> implements Iterator<T> {
 
     int nextSegmentIndex;
@@ -2614,6 +2641,7 @@ public void remove() {
     }
   }
 
+  @ReceiverDependentMutable
   final class KeyIterator extends HashIterator<K> {
 
     @Override
@@ -2622,6 +2650,7 @@ public K next() {
     }
   }
 
+  @ReceiverDependentMutable
   final class ValueIterator extends HashIterator<V> {
 
     @Override
@@ -2634,6 +2663,7 @@ public V next() {
    * Custom Entry class used by EntryIterator.next(), that relays setValue changes to the underlying
    * map.
    */
+  @ReceiverDependentMutable
   final class WriteThroughEntry extends AbstractMapEntry<K, V> {
     final K key; // non-null
     V value; // non-null
@@ -2677,6 +2707,7 @@ public V setValue(V newValue) {
     }
   }
 
+  @ReceiverDependentMutable
   final class EntryIterator extends HashIterator<Entry<K, V>> {
 
     @Override
@@ -2686,6 +2717,7 @@ public Entry<K, V> next() {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   final class KeySet extends SafeToArraySet<K> {
 
     @Override
@@ -2720,6 +2752,7 @@ public void clear() {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   final class Values extends AbstractCollection<V> {
 
     @Override
@@ -2763,6 +2796,7 @@ public <T> T[] toArray(T[] a) {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   final class EntrySet extends SafeToArraySet<Entry<K, V>> {
 
     @Override
@@ -2811,7 +2845,7 @@ public void clear() {
     }
   }
 
-  private abstract static class SafeToArraySet<E> extends AbstractSet<E> {
+  @ReceiverDependentMutable private abstract static class SafeToArraySet<E> extends AbstractSet<E> {
     // super.toArray() may misbehave if size() is inaccurate, at least on old versions of Android.
     // https://code.google.com/p/android/issues/detail?id=36519 / http://r.android.com/47508
 
@@ -2851,7 +2885,8 @@ Object writeReplace() {
    * The actual object that gets serialized. Unfortunately, readResolve() doesn't get called when a
    * circular dependency is present, so the proxy must be able to behave as the map itself.
    */
-  abstract static class AbstractSerializationProxy<K, V> extends ForwardingConcurrentMap<K, V>
+  @ReceiverDependentMutable
+  abstract static class AbstractSerializationProxy<K extends @Immutable Object, V> extends ForwardingConcurrentMap<K, V>
       implements Serializable {
     private static final long serialVersionUID = 3;
 
diff --git a/guava/src/com/google/common/collect/Maps.java b/guava/src/com/google/common/collect/Maps.java
index 84859e95644e..691f673ce0c8 100644
--- a/guava/src/com/google/common/collect/Maps.java
+++ b/guava/src/com/google/common/collect/Maps.java
@@ -75,6 +75,12 @@
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
@@ -102,36 +108,36 @@
 public final class Maps {
   private Maps() {}
 
-  private enum EntryFunction implements Function<Entry<?, ?>, @Nullable Object> {
+  private enum EntryFunction implements Function<Entry<?, ?>, @Nullable @Readonly Object> {
     KEY {
       @Override
       @CheckForNull
-      public Object apply(Entry<?, ?> entry) {
+      public @Readonly Object apply(Entry<?, ?> entry) {
         return entry.getKey();
       }
     },
     VALUE {
       @Override
       @CheckForNull
-      public Object apply(Entry<?, ?> entry) {
+      public @Readonly Object apply(Entry<?, ?> entry) {
         return entry.getValue();
       }
     };
   }
 
   @SuppressWarnings("unchecked")
-  static <K extends @Nullable Object> Function<Entry<K, ?>, K> keyFunction() {
+  static <K extends @Nullable @Immutable Object> Function<Entry<K, ?>, K> keyFunction() {
     return (Function) EntryFunction.KEY;
   }
 
   @SuppressWarnings("unchecked")
-  static <V extends @Nullable Object> Function<Entry<?, V>, V> valueFunction() {
+  static <V extends @Nullable @Readonly Object> Function<Entry<?, V>, V> valueFunction() {
     return (Function) EntryFunction.VALUE;
   }
 
-  static <K extends @Nullable Object, V extends @Nullable Object> Iterator<K> keyIterator(
-      Iterator<Entry<K, V>> entryIterator) {
-    return new TransformedIterator<Entry<K, V>, K>(entryIterator) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Iterator<K> keyIterator(
+      Iterator<@PolyMutable Entry<K, V>> entryIterator) {
+    return new TransformedIterator<@PolyMutable Entry<K, V>, K>(entryIterator) {
       @Override
       @ParametricNullness
       K transform(Entry<K, V> entry) {
@@ -140,9 +146,9 @@ K transform(Entry<K, V> entry) {
     };
   }
 
-  static <K extends @Nullable Object, V extends @Nullable Object> Iterator<V> valueIterator(
-      Iterator<Entry<K, V>> entryIterator) {
-    return new TransformedIterator<Entry<K, V>, V>(entryIterator) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Iterator<V> valueIterator(
+      Iterator<@PolyMutable Entry<K, V>> entryIterator) {
+    return new TransformedIterator<@PolyMutable Entry<K, V>, V>(entryIterator) {
       @Override
       @ParametricNullness
       V transform(Entry<K, V> entry) {
@@ -163,14 +169,14 @@ V transform(Entry<K, V> entry) {
    * @since 14.0
    */
   @GwtCompatible(serializable = true)
-  public static <K extends Enum<K>, V> ImmutableMap<K, V> immutableEnumMap(
-      Map<K, ? extends V> map) {
+  public static <K extends Enum<K>, V extends @Immutable Object> ImmutableMap<K, V> immutableEnumMap(
+      @Readonly Map<K, ? extends V> map) {
     if (map instanceof ImmutableEnumMap) {
       @SuppressWarnings("unchecked") // safe covariant cast
       ImmutableEnumMap<K, V> result = (ImmutableEnumMap<K, V>) map;
       return result;
     }
-    Iterator<? extends Entry<K, ? extends V>> entryItr = map.entrySet().iterator();
+    Iterator<? extends @Readonly Entry<K, ? extends V>> entryItr = map.entrySet().iterator();
     if (!entryItr.hasNext()) {
       return ImmutableMap.of();
     }
@@ -205,7 +211,7 @@ public static <K extends Enum<K>, V> ImmutableMap<K, V> immutableEnumMap(
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K extends Enum<K>, V>
+  public static <T extends @Nullable @Readonly Object, K extends Enum<K>, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableEnumMap(
           java.util.function.Function<? super T, ? extends K> keyFunction,
           java.util.function.Function<? super T, ? extends V> valueFunction) {
@@ -223,7 +229,7 @@ public static <K extends Enum<K>, V> ImmutableMap<K, V> immutableEnumMap(
    *
    * @since 21.0
    */
-  public static <T extends @Nullable Object, K extends Enum<K>, V>
+  public static <T extends @Nullable @Readonly Object, K extends Enum<K>, V>
       Collector<T, ?, ImmutableMap<K, V>> toImmutableEnumMap(
           java.util.function.Function<? super T, ? extends K> keyFunction,
           java.util.function.Function<? super T, ? extends V> valueFunction,
@@ -244,7 +250,7 @@ public static <K extends Enum<K>, V> ImmutableMap<K, V> immutableEnumMap(
    *
    * @return a new, empty {@code HashMap}
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       HashMap<K, V> newHashMap() {
     return new HashMap<>();
   }
@@ -263,9 +269,9 @@ HashMap<K, V> newHashMap() {
    * @param map the mappings to be placed in the new map
    * @return a new {@code HashMap} initialized with the mappings from {@code map}
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> HashMap<K, V> newHashMap(
-      Map<? extends K, ? extends V> map) {
-    return new HashMap<>(map);
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @PolyMutable HashMap<K, V> newHashMap(
+      @PolyMutable Map<? extends K, ? extends V> map) {
+    return new @PolyMutable HashMap<>(map);
   }
 
   /**
@@ -279,8 +285,8 @@ HashMap<K, V> newHashMap() {
    *     without resizing
    * @throws IllegalArgumentException if {@code expectedSize} is negative
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      HashMap<K, V> newHashMapWithExpectedSize(int expectedSize) {
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+  HashMap<K, V> newHashMapWithExpectedSize(int expectedSize) {
     return new HashMap<>(capacity(expectedSize));
   }
 
@@ -313,7 +319,7 @@ static int capacity(int expectedSize) {
    *
    * @return a new, empty {@code LinkedHashMap}
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       LinkedHashMap<K, V> newLinkedHashMap() {
     return new LinkedHashMap<>();
   }
@@ -331,9 +337,9 @@ LinkedHashMap<K, V> newLinkedHashMap() {
    * @param map the mappings to be placed in the new map
    * @return a new, {@code LinkedHashMap} initialized with the mappings from {@code map}
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      LinkedHashMap<K, V> newLinkedHashMap(Map<? extends K, ? extends V> map) {
-    return new LinkedHashMap<>(map);
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+    @PolyMutable LinkedHashMap<K, V> newLinkedHashMap(@PolyMutable Map<? extends K, ? extends V> map) {
+    return new @PolyMutable LinkedHashMap<>(map);
   }
 
   /**
@@ -348,7 +354,7 @@ LinkedHashMap<K, V> newLinkedHashMap(Map<? extends K, ? extends V> map) {
    * @throws IllegalArgumentException if {@code expectedSize} is negative
    * @since 19.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       LinkedHashMap<K, V> newLinkedHashMapWithExpectedSize(int expectedSize) {
     return new LinkedHashMap<>(capacity(expectedSize));
   }
@@ -358,7 +364,7 @@ LinkedHashMap<K, V> newLinkedHashMapWithExpectedSize(int expectedSize) {
    *
    * @since 3.0
    */
-  public static <K, V> ConcurrentMap<K, V> newConcurrentMap() {
+  public static <K extends @Immutable Object, V> ConcurrentMap<K, V> newConcurrentMap() {
     return new ConcurrentHashMap<>();
   }
 
@@ -374,7 +380,7 @@ public static <K, V> ConcurrentMap<K, V> newConcurrentMap() {
    *
    * @return a new, empty {@code TreeMap}
    */
-  public static <K extends Comparable, V extends @Nullable Object> TreeMap<K, V> newTreeMap() {
+  public static <K extends @Immutable Comparable, V extends @Nullable @Readonly Object> TreeMap<K, V> newTreeMap() {
     return new TreeMap<>();
   }
 
@@ -394,9 +400,9 @@ public static <K, V> ConcurrentMap<K, V> newConcurrentMap() {
    * @return a new {@code TreeMap} initialized with the mappings from {@code map} and using the
    *     comparator of {@code map}
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> TreeMap<K, V> newTreeMap(
-      SortedMap<K, ? extends V> map) {
-    return new TreeMap<>(map);
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @PolyMutable TreeMap<K, V> newTreeMap(
+          @PolyMutable SortedMap<K, ? extends V> map) {
+    return new @PolyMutable TreeMap<>(map);
   }
 
   /**
@@ -412,7 +418,7 @@ public static <K, V> ConcurrentMap<K, V> newConcurrentMap() {
    * @param comparator the comparator to sort the keys with
    * @return a new, empty {@code TreeMap}
    */
-  public static <C extends @Nullable Object, K extends C, V extends @Nullable Object>
+  public static <C extends @Nullable @Immutable Object, K extends C, V extends @Nullable @Readonly Object>
       TreeMap<K, V> newTreeMap(@CheckForNull Comparator<C> comparator) {
     // Ideally, the extra type parameter "C" shouldn't be necessary. It is a
     // work-around of a compiler type inference quirk that prevents the
@@ -428,7 +434,7 @@ TreeMap<K, V> newTreeMap(@CheckForNull Comparator<C> comparator) {
    * @param type the key type for this map
    * @return a new, empty {@code EnumMap}
    */
-  public static <K extends Enum<K>, V extends @Nullable Object> EnumMap<K, V> newEnumMap(
+  public static <K extends Enum<K>, V extends @Nullable @Readonly Object> EnumMap<K, V> newEnumMap(
       Class<K> type) {
     return new EnumMap<>(checkNotNull(type));
   }
@@ -445,9 +451,9 @@ TreeMap<K, V> newTreeMap(@CheckForNull Comparator<C> comparator) {
    * @throws IllegalArgumentException if {@code m} is not an {@code EnumMap} instance and contains
    *     no mappings
    */
-  public static <K extends Enum<K>, V extends @Nullable Object> EnumMap<K, V> newEnumMap(
-      Map<K, ? extends V> map) {
-    return new EnumMap<>(map);
+  public static <K extends Enum<K>, V extends @Nullable @Readonly Object> @PolyMutable EnumMap<K, V> newEnumMap(
+          @PolyMutable Map<K, ? extends V> map) {
+    return new @PolyMutable EnumMap<>(map);
   }
 
   /**
@@ -459,7 +465,7 @@ TreeMap<K, V> newTreeMap(@CheckForNull Comparator<C> comparator) {
    *
    * @return a new, empty {@code IdentityHashMap}
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       IdentityHashMap<K, V> newIdentityHashMap() {
     return new IdentityHashMap<>();
   }
@@ -480,9 +486,9 @@ IdentityHashMap<K, V> newIdentityHashMap() {
    * @return the difference between the two maps
    */
   @SuppressWarnings("unchecked")
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       MapDifference<K, V> difference(
-          Map<? extends K, ? extends V> left, Map<? extends K, ? extends V> right) {
+          @Readonly Map<? extends K, ? extends V> left, @Readonly Map<? extends K, ? extends V> right) {
     if (left instanceof SortedMap) {
       SortedMap<K, ? extends V> sortedLeft = (SortedMap<K, ? extends V>) left;
       return difference(sortedLeft, right);
@@ -525,7 +531,7 @@ MapDifference<K, V> difference(
    * Still, if we decide that we want to make that work, we'd need to introduce a new type parameter
    * for the Equivalence input type:
    *
-   * <E, K extends @Nullable Object, V extends @Nullable E> ... difference(..., Equivalence<E> ...)
+   * <E, K extends @Nullable @Immutable Object, V extends @Nullable E> ... difference(..., Equivalence<E> ...)
    *
    * Maybe we should, even though it will break source compatibility.
    *
@@ -543,9 +549,9 @@ MapDifference<K, V> difference(
    * (Vaguely related: Another thing we could consider is an overload that accepts a BiPredicate:
    * https://github.com/google/guava/issues/3913)
    */
-  public static <K extends @Nullable Object, V> MapDifference<K, V> difference(
-      Map<? extends K, ? extends V> left,
-      Map<? extends K, ? extends V> right,
+  public static <K extends @Nullable @Immutable Object, V> MapDifference<K, V> difference(
+          @Readonly Map<? extends K, ? extends V> left,
+          @Readonly Map<? extends K, ? extends V> right,
       Equivalence<? super V> valueEquivalence) {
     Preconditions.checkNotNull(valueEquivalence);
 
@@ -574,12 +580,12 @@ MapDifference<K, V> difference(
    * @return the difference between the two maps
    * @since 11.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SortedMapDifference<K, V> difference(
-          SortedMap<K, ? extends V> left, Map<? extends K, ? extends V> right) {
+          @Readonly SortedMap<K, ? extends V> left, @Readonly Map<? extends K, ? extends V> right) {
     checkNotNull(left);
     checkNotNull(right);
-    Comparator<? super K> comparator = orNaturalOrder(left.comparator());
+    Comparator<@Immutable ? super K> comparator = orNaturalOrder(left.comparator());
     SortedMap<K, V> onlyOnLeft = Maps.newTreeMap(comparator);
     SortedMap<K, V> onlyOnRight = Maps.newTreeMap(comparator);
     onlyOnRight.putAll(right); // will whittle it down
@@ -602,11 +608,11 @@ SortedMapDifference<K, V> difference(
     return new SortedMapDifferenceImpl<>(onlyOnLeft, onlyOnRight, onBoth, differences);
   }
 
-  private static <K extends @Nullable Object, V extends @Nullable Object> void doDifference(
-      Map<? extends K, ? extends V> left,
-      Map<? extends K, ? extends V> right,
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void doDifference(
+      @Readonly Map<? extends K, ? extends V> left,
+      @Readonly Map<? extends K, ? extends V> right,
       Equivalence<? super V> valueEquivalence,
-      Map<K, V> onlyOnLeft,
+      @Readonly Map<K, V> onlyOnLeft,
       Map<K, V> onlyOnRight,
       Map<K, V> onBoth,
       Map<K, MapDifference.ValueDifference<V>> differences) {
@@ -636,8 +642,8 @@ SortedMapDifference<K, V> difference(
     }
   }
 
-  private static <K extends @Nullable Object, V extends @Nullable Object> Map<K, V> unmodifiableMap(
-      Map<K, ? extends V> map) {
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @Readonly Map<K, V> unmodifiableMap(
+      @Readonly Map<K, ? extends V> map) {
     if (map instanceof SortedMap) {
       return Collections.unmodifiableSortedMap((SortedMap<K, ? extends V>) map);
     } else {
@@ -645,18 +651,19 @@ SortedMapDifference<K, V> difference(
     }
   }
 
-  static class MapDifferenceImpl<K extends @Nullable Object, V extends @Nullable Object>
+  @Immutable
+  static class MapDifferenceImpl<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       implements MapDifference<K, V> {
-    final Map<K, V> onlyOnLeft;
-    final Map<K, V> onlyOnRight;
-    final Map<K, V> onBoth;
-    final Map<K, ValueDifference<V>> differences;
+    final @Readonly Map<K, V> onlyOnLeft;
+    final @Readonly Map<K, V> onlyOnRight;
+    final @Readonly Map<K, V> onBoth;
+    final @Readonly Map<K, ValueDifference<V>> differences;
 
     MapDifferenceImpl(
-        Map<K, V> onlyOnLeft,
-        Map<K, V> onlyOnRight,
-        Map<K, V> onBoth,
-        Map<K, ValueDifference<V>> differences) {
+            @Readonly Map<K, V> onlyOnLeft,
+            @Readonly Map<K, V> onlyOnRight,
+            @Readonly Map<K, V> onBoth,
+            @Readonly Map<K, ValueDifference<V>> differences) {
       this.onlyOnLeft = unmodifiableMap(onlyOnLeft);
       this.onlyOnRight = unmodifiableMap(onlyOnRight);
       this.onBoth = unmodifiableMap(onBoth);
@@ -669,28 +676,28 @@ public boolean areEqual() {
     }
 
     @Override
-    public Map<K, V> entriesOnlyOnLeft() {
+    public @Readonly Map<K, V> entriesOnlyOnLeft() {
       return onlyOnLeft;
     }
 
     @Override
-    public Map<K, V> entriesOnlyOnRight() {
+    public @Readonly Map<K, V> entriesOnlyOnRight() {
       return onlyOnRight;
     }
 
     @Override
-    public Map<K, V> entriesInCommon() {
+    public @Readonly Map<K, V> entriesInCommon() {
       return onBoth;
     }
 
     @Override
-    public Map<K, ValueDifference<V>> entriesDiffering() {
+    public @Readonly Map<K, ValueDifference<V>> entriesDiffering() {
       return differences;
     }
 
     @Pure
     @Override
-    public boolean equals(@CheckForNull Object object) {
+    public boolean equals(@CheckForNull @Readonly Object object) {
       if (object == this) {
         return true;
       }
@@ -706,7 +713,7 @@ && entriesInCommon().equals(other.entriesInCommon())
 
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness MapDifferenceImpl<K, V> this) {
+    public int hashCode(@UnknownSignedness @Readonly MapDifferenceImpl<K, V> this) {
       return Objects.hashCode(
           entriesOnlyOnLeft(), entriesOnlyOnRight(), entriesInCommon(), entriesDiffering());
     }
@@ -732,12 +739,13 @@ public String toString() {
     }
   }
 
-  static class ValueDifferenceImpl<V extends @Nullable Object>
+  @Immutable
+  static class ValueDifferenceImpl<V extends @Nullable @Readonly Object>
       implements MapDifference.ValueDifference<V> {
     @ParametricNullness private final V left;
     @ParametricNullness private final V right;
 
-    static <V extends @Nullable Object> ValueDifference<V> create(
+    static <V extends @Nullable @Readonly Object> ValueDifference<V> create(
         @ParametricNullness V left, @ParametricNullness V right) {
       return new ValueDifferenceImpl<V>(left, right);
     }
@@ -761,7 +769,7 @@ public V rightValue() {
 
     @Pure
     @Override
-    public boolean equals(@CheckForNull Object object) {
+    public boolean equals(@CheckForNull @Readonly Object object) {
       if (object instanceof MapDifference.ValueDifference) {
         MapDifference.ValueDifference<?> that = (MapDifference.ValueDifference<?>) object;
         return Objects.equal(this.left, that.leftValue())
@@ -772,7 +780,7 @@ public boolean equals(@CheckForNull Object object) {
 
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness ValueDifferenceImpl<V> this) {
+    public int hashCode(@UnknownSignedness @Readonly ValueDifferenceImpl<V> this) {
       return Objects.hashCode(left, right);
     }
 
@@ -783,34 +791,35 @@ public String toString() {
     }
   }
 
-  static class SortedMapDifferenceImpl<K extends @Nullable Object, V extends @Nullable Object>
+  @Immutable
+  static class SortedMapDifferenceImpl<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends MapDifferenceImpl<K, V> implements SortedMapDifference<K, V> {
     SortedMapDifferenceImpl(
-        SortedMap<K, V> onlyOnLeft,
-        SortedMap<K, V> onlyOnRight,
-        SortedMap<K, V> onBoth,
-        SortedMap<K, ValueDifference<V>> differences) {
+            @Readonly SortedMap<K, V> onlyOnLeft,
+            @Readonly SortedMap<K, V> onlyOnRight,
+            @Readonly SortedMap<K, V> onBoth,
+            @Readonly SortedMap<K, ValueDifference<V>> differences) {
       super(onlyOnLeft, onlyOnRight, onBoth, differences);
     }
 
     @Override
-    public SortedMap<K, ValueDifference<V>> entriesDiffering() {
-      return (SortedMap<K, ValueDifference<V>>) super.entriesDiffering();
+    public @Readonly SortedMap<K, ValueDifference<V>> entriesDiffering() {
+      return (@Readonly SortedMap<K, ValueDifference<V>>) super.entriesDiffering();
     }
 
     @Override
-    public SortedMap<K, V> entriesInCommon() {
-      return (SortedMap<K, V>) super.entriesInCommon();
+    public @Readonly SortedMap<K, V> entriesInCommon() {
+      return (@Readonly SortedMap<K, V>) super.entriesInCommon();
     }
 
     @Override
-    public SortedMap<K, V> entriesOnlyOnLeft() {
-      return (SortedMap<K, V>) super.entriesOnlyOnLeft();
+    public @Readonly SortedMap<K, V> entriesOnlyOnLeft() {
+      return (@Readonly SortedMap<K, V>) super.entriesOnlyOnLeft();
     }
 
     @Override
-    public SortedMap<K, V> entriesOnlyOnRight() {
-      return (SortedMap<K, V>) super.entriesOnlyOnRight();
+    public @Readonly SortedMap<K, V> entriesOnlyOnRight() {
+      return (@Readonly SortedMap<K, V>) super.entriesOnlyOnRight();
     }
   }
 
@@ -820,7 +829,7 @@ public SortedMap<K, V> entriesOnlyOnRight() {
    * ugly type-casting in one place.
    */
   @SuppressWarnings("unchecked")
-  static <E extends @Nullable Object> Comparator<? super E> orNaturalOrder(
+  static <E extends @Nullable @Readonly Object> Comparator<? super E> orNaturalOrder(
       @CheckForNull Comparator<? super E> comparator) {
     if (comparator != null) { // can't use ? : because of javac bug 5080917
       return comparator;
@@ -852,9 +861,9 @@ public SortedMap<K, V> entriesOnlyOnRight() {
    *
    * @since 14.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> Map<K, V> asMap(
-      Set<K> set, Function<? super K, V> function) {
-    return new AsMapView<>(set, function);
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @PolyMutable Map<K, V> asMap(
+          @PolyMutable Set<K> set, Function<? super K, V> function) {
+    return new @PolyMutable AsMapView<>(set, function);
   }
 
   /**
@@ -880,9 +889,9 @@ public SortedMap<K, V> entriesOnlyOnRight() {
    *
    * @since 14.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> SortedMap<K, V> asMap(
-      SortedSet<K> set, Function<? super K, V> function) {
-    return new SortedAsMapView<>(set, function);
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @PolyMutable SortedMap<K, V> asMap(
+      @PolyMutable SortedSet<K> set, Function<? super K, V> function) {
+    return new @PolyMutable SortedAsMapView<>(set, function);
   }
 
   /**
@@ -909,33 +918,34 @@ public SortedMap<K, V> entriesOnlyOnRight() {
    * @since 14.0
    */
   @GwtIncompatible // NavigableMap
-  public static <K extends @Nullable Object, V extends @Nullable Object> NavigableMap<K, V> asMap(
-      NavigableSet<K> set, Function<? super K, V> function) {
-    return new NavigableAsMapView<>(set, function);
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @PolyMutable NavigableMap<K, V> asMap(
+      @PolyMutable NavigableSet<K> set, Function<? super K, V> function) {
+    return new @PolyMutable NavigableAsMapView<>(set, function);
   }
 
-  private static class AsMapView<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class AsMapView<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends ViewCachingAbstractMap<K, V> {
 
     private final Set<K> set;
     final Function<? super K, V> function;
 
-    Set<K> backingSet() {
+    @PolyMutable Set<K> backingSet(@PolyMutable AsMapView<K, V> this) {
       return set;
     }
 
-    AsMapView(Set<K> set, Function<? super K, V> function) {
+    AsMapView(@ReceiverDependentMutable Set<K> set, Function<? super K, V> function) {
       this.set = checkNotNull(set);
       this.function = checkNotNull(function);
     }
 
     @Override
-    public Set<K> createKeySet() {
+    public @PolyMutable Set<K> createKeySet(@PolyMutable AsMapView<K, V> this) {
       return removeOnlySet(backingSet());
     }
 
     @Override
-    Collection<V> createValues() {
+    @PolyMutable Collection<V> createValues(@PolyMutable AsMapView<K, V> this) {
       return Collections2.transform(set, function);
     }
 
@@ -945,19 +955,19 @@ Collection<V> createValues() {
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return backingSet().contains(key);
     }
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull @UnknownSignedness Object key) {
+    public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return getOrDefault(key, null);
     }
 
     @Override
     @CheckForNull
-    public V getOrDefault(@CheckForNull @UnknownSignedness Object key, @CheckForNull V defaultValue) {
+    public V getOrDefault(@CheckForNull @UnknownSignedness @Readonly Object key, @CheckForNull V defaultValue) {
       if (Collections2.safeContains(backingSet(), key)) {
         @SuppressWarnings("unchecked") // unsafe, but Javadoc warns about it
         K k = (K) key;
@@ -969,7 +979,7 @@ public V getOrDefault(@CheckForNull @UnknownSignedness Object key, @CheckForNull
 
     @Override
     @CheckForNull
-    public V remove(@CheckForNull @UnknownSignedness Object key) {
+    public V remove(@CheckForNull @UnknownSignedness @Readonly Object key) {
       if (backingSet().remove(key)) {
         @SuppressWarnings("unchecked") // unsafe, but Javadoc warns about it
         K k = (K) key;
@@ -985,7 +995,7 @@ public void clear() {
     }
 
     @Override
-    protected Set<Entry<K, V>> createEntrySet() {
+    protected @PolyMutable Set<@PolyMutable Entry<K, V>> createEntrySet(@PolyMutable AsMapView<K, V> this) {
       @WeakOuter
       class EntrySetImpl extends EntrySet<K, V> {
         @Override
@@ -1009,9 +1019,9 @@ public void forEach(BiConsumer<? super K, ? super V> action) {
     }
   }
 
-  static <K extends @Nullable Object, V extends @Nullable Object>
-      Iterator<Entry<K, V>> asMapEntryIterator(Set<K> set, final Function<? super K, V> function) {
-    return new TransformedIterator<K, Entry<K, V>>(set.iterator()) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+      Iterator<@PolyMutable Entry<K, V>> asMapEntryIterator(@PolyMutable Set<K> set, final Function<? super K, V> function) {
+    return new TransformedIterator<K, @PolyMutable Entry<K, V>>(set.iterator()) {
       @Override
       Entry<K, V> transform(@ParametricNullness final K key) {
         return immutableEntry(key, function.apply(key));
@@ -1019,60 +1029,62 @@ Entry<K, V> transform(@ParametricNullness final K key) {
     };
   }
 
-  private static class SortedAsMapView<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class SortedAsMapView<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AsMapView<K, V> implements SortedMap<K, V> {
 
-    SortedAsMapView(SortedSet<K> set, Function<? super K, V> function) {
+    SortedAsMapView(@ReceiverDependentMutable SortedSet<K> set, Function<? super K, V> function) {
       super(set, function);
     }
 
     @Override
-    SortedSet<K> backingSet() {
+    @PolyMutable SortedSet<K> backingSet(@PolyMutable SortedAsMapView<K, V> this) {
       return (SortedSet<K>) super.backingSet();
     }
 
     @Override
     @CheckForNull
-    public Comparator<? super K> comparator() {
+    public Comparator<? super K> comparator(@Readonly SortedAsMapView<K, V> this) {
       return backingSet().comparator();
     }
 
     @Override
-    public Set<@KeyFor({"this"}) K> keySet() {
+    public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable SortedAsMapView<K, V> this) {
       return removeOnlySortedSet(backingSet());
     }
 
     @Override
-    public SortedMap<K, V> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
+    public @PolyMutable SortedMap<K, V> subMap(@PolyMutable SortedAsMapView<K, V> this, @ParametricNullness K fromKey, @ParametricNullness K toKey) {
       return asMap(backingSet().subSet(fromKey, toKey), function);
     }
 
     @Override
-    public SortedMap<K, V> headMap(@ParametricNullness K toKey) {
+    public @PolyMutable SortedMap<K, V> headMap(@PolyMutable SortedAsMapView<K, V> this, @ParametricNullness K toKey) {
       return asMap(backingSet().headSet(toKey), function);
     }
 
     @Override
-    public SortedMap<K, V> tailMap(@ParametricNullness K fromKey) {
+    public @PolyMutable SortedMap<K, V> tailMap(@PolyMutable SortedAsMapView<K, V> this, @ParametricNullness K fromKey) {
       return asMap(backingSet().tailSet(fromKey), function);
     }
 
     @Override
     @ParametricNullness
-    public @KeyFor("this") K firstKey() {
+    public @KeyFor("this") K firstKey(@Readonly SortedAsMapView<K, V> this) {
       return backingSet().first();
     }
 
     @Override
     @ParametricNullness
-    public @KeyFor("this") K lastKey() {
+    public @KeyFor("this") K lastKey(@Readonly SortedAsMapView<K, V> this) {
       return backingSet().last();
     }
   }
 
   @GwtIncompatible // NavigableMap
+  @ReceiverDependentMutable
   private static final class NavigableAsMapView<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractNavigableMap<K, V> {
     /*
      * Using AbstractNavigableMap is simpler than extending SortedAsMapView and rewriting all the
@@ -1082,13 +1094,14 @@ private static final class NavigableAsMapView<
     private final NavigableSet<K> set;
     private final Function<? super K, V> function;
 
-    NavigableAsMapView(NavigableSet<K> ks, Function<? super K, V> vFunction) {
+    NavigableAsMapView(@ReceiverDependentMutable NavigableSet<K> ks, Function<? super K, V> vFunction) {
       this.set = checkNotNull(ks);
       this.function = checkNotNull(vFunction);
     }
 
     @Override
-    public NavigableMap<K, V> subMap(
+    public @PolyMutable NavigableMap<K, V> subMap(
+            @PolyMutable NavigableAsMapView<K, V> this,
         @ParametricNullness K fromKey,
         boolean fromInclusive,
         @ParametricNullness K toKey,
@@ -1097,30 +1110,30 @@ public NavigableMap<K, V> subMap(
     }
 
     @Override
-    public NavigableMap<K, V> headMap(@ParametricNullness K toKey, boolean inclusive) {
+    public @PolyMutable NavigableMap<K, V> headMap(@PolyMutable NavigableAsMapView<K, V> this, @ParametricNullness K toKey, boolean inclusive) {
       return asMap(set.headSet(toKey, inclusive), function);
     }
 
     @Override
-    public NavigableMap<K, V> tailMap(@ParametricNullness K fromKey, boolean inclusive) {
+    public @PolyMutable NavigableMap<K, V> tailMap(@PolyMutable NavigableAsMapView<K, V> this, @ParametricNullness K fromKey, boolean inclusive) {
       return asMap(set.tailSet(fromKey, inclusive), function);
     }
 
     @Override
     @CheckForNull
-    public Comparator<? super K> comparator() {
+    public Comparator<? super K> comparator(@Readonly NavigableAsMapView<K, V> this) {
       return set.comparator();
     }
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull @UnknownSignedness Object key) {
+    public V get(@Readonly NavigableAsMapView<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return getOrDefault(key, null);
     }
 
     @Override
     @CheckForNull
-    public V getOrDefault(@CheckForNull @UnknownSignedness Object key, @CheckForNull V defaultValue) {
+    public V getOrDefault(@Readonly NavigableAsMapView<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key, @CheckForNull V defaultValue) {
       if (Collections2.safeContains(set, key)) {
         @SuppressWarnings("unchecked") // unsafe, but Javadoc warns about it
         K k = (K) key;
@@ -1131,17 +1144,17 @@ public V getOrDefault(@CheckForNull @UnknownSignedness Object key, @CheckForNull
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable NavigableAsMapView<K, V> this) {
       set.clear();
     }
 
     @Override
-    Iterator<Entry<K, V>> entryIterator() {
+    Iterator<@PolyMutable Entry<K, V>> entryIterator(@PolyMutable NavigableAsMapView<K, V> this) {
       return asMapEntryIterator(set, function);
     }
 
     @Override
-    Spliterator<Entry<K, V>> entrySpliterator() {
+    Spliterator<@PolyMutable Entry<K, V>> entrySpliterator(@PolyMutable NavigableAsMapView<K, V> this) {
       return CollectSpliterators.map(set.spliterator(), e -> immutableEntry(e, function.apply(e)));
     }
 
@@ -1151,27 +1164,27 @@ public void forEach(BiConsumer<? super K, ? super V> action) {
     }
 
     @Override
-    Iterator<Entry<K, V>> descendingEntryIterator() {
+    Iterator<@PolyMutable Entry<K, V>> descendingEntryIterator(@PolyMutable NavigableAsMapView<K, V> this) {
       return descendingMap().entrySet().iterator();
     }
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> navigableKeySet() {
+    public @PolyMutable NavigableSet<@KeyFor({"this"}) K> navigableKeySet(@PolyMutable NavigableAsMapView<K, V> this) {
       return removeOnlyNavigableSet(set);
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly NavigableAsMapView<K, V> this) {
       return set.size();
     }
 
     @Override
-    public NavigableMap<K, V> descendingMap() {
+    public @PolyMutable NavigableMap<K, V> descendingMap(@PolyMutable NavigableAsMapView<K, V> this) {
       return asMap(set.descendingSet(), function);
     }
   }
 
-  private static <E extends @Nullable Object> Set<E> removeOnlySet(final Set<E> set) {
+  private static <E extends @Nullable @Readonly Object> Set<E> removeOnlySet(final Set<E> set) {
     return new ForwardingSet<E>() {
       @Override
       protected Set<E> delegate() {
@@ -1190,7 +1203,7 @@ public boolean addAll(Collection<? extends E> es) {
     };
   }
 
-  private static <E extends @Nullable Object> SortedSet<E> removeOnlySortedSet(
+  private static <E extends @Nullable @Readonly Object> SortedSet<E> removeOnlySortedSet(
       final SortedSet<E> set) {
     return new ForwardingSortedSet<E>() {
       @Override
@@ -1227,7 +1240,7 @@ public SortedSet<E> tailSet(@ParametricNullness E fromElement) {
   }
 
   @GwtIncompatible // NavigableSet
-  private static <E extends @Nullable Object> NavigableSet<E> removeOnlyNavigableSet(
+  private static <E extends @Nullable @Readonly Object> NavigableSet<E> removeOnlyNavigableSet(
       final NavigableSet<E> set) {
     return new ForwardingNavigableSet<E>() {
       @Override
@@ -1304,7 +1317,7 @@ public NavigableSet<E> descendingSet() {
    *     valueFunction} produces {@code null} for any key
    * @since 14.0
    */
-  public static <K, V> ImmutableMap<K, V> toMap(
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> toMap(
       Iterable<K> keys, Function<? super K, V> valueFunction) {
     return toMap(keys.iterator(), valueFunction);
   }
@@ -1322,7 +1335,7 @@ public static <K, V> ImmutableMap<K, V> toMap(
    *     valueFunction} produces {@code null} for any key
    * @since 14.0
    */
-  public static <K, V> ImmutableMap<K, V> toMap(
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> toMap(
       Iterator<K> keys, Function<? super K, V> valueFunction) {
     checkNotNull(valueFunction);
     ImmutableMap.Builder<K, V> builder = ImmutableMap.builder();
@@ -1363,7 +1376,7 @@ public static <K, V> ImmutableMap<K, V> toMap(
    *     keyFunction} produces {@code null} for any value
    */
   @CanIgnoreReturnValue
-  public static <K, V> ImmutableMap<K, V> uniqueIndex(
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> uniqueIndex(
       Iterable<V> values, Function<? super V, K> keyFunction) {
     // TODO(lowasser): consider presizing the builder if values is a Collection
     return uniqueIndex(values.iterator(), keyFunction);
@@ -1399,7 +1412,7 @@ public static <K, V> ImmutableMap<K, V> uniqueIndex(
    * @since 10.0
    */
   @CanIgnoreReturnValue
-  public static <K, V> ImmutableMap<K, V> uniqueIndex(
+  public static <K extends @Immutable Object, V> ImmutableMap<K, V> uniqueIndex(
       Iterator<V> values, Function<? super V, K> keyFunction) {
     checkNotNull(keyFunction);
     ImmutableMap.Builder<K, V> builder = ImmutableMap.builder();
@@ -1477,7 +1490,7 @@ public static ImmutableMap<String, String> fromProperties(Properties properties)
    * @param value the value to be associated with the returned entry
    */
   @GwtCompatible(serializable = true)
-  public static <K extends @Nullable Object, V extends @Nullable Object> Entry<K, V> immutableEntry(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @Immutable Entry<K, V> immutableEntry(
       @ParametricNullness K key, @ParametricNullness V value) {
     return new ImmutableEntry<>(key, value);
   }
@@ -1490,8 +1503,8 @@ public static ImmutableMap<String, String> fromProperties(Properties properties)
    * @param entrySet the entries for which to return an unmodifiable view
    * @return an unmodifiable view of the entries
    */
-  static <K extends @Nullable Object, V extends @Nullable Object>
-      Set<Entry<K, V>> unmodifiableEntrySet(Set<Entry<K, V>> entrySet) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+    @Readonly Set<@Readonly Entry<K, V>> unmodifiableEntrySet(@Readonly Set<@PolyMutable Entry<K, V>> entrySet) {
     return new UnmodifiableEntrySet<>(Collections.unmodifiableSet(entrySet));
   }
 
@@ -1504,8 +1517,8 @@ Set<Entry<K, V>> unmodifiableEntrySet(Set<Entry<K, V>> entrySet) {
    * @param entry the entry for which to return an unmodifiable view
    * @return an unmodifiable view of the entry
    */
-  static <K extends @Nullable Object, V extends @Nullable Object> Entry<K, V> unmodifiableEntry(
-      final Entry<? extends K, ? extends V> entry) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @Readonly Entry<K, V> unmodifiableEntry(
+      final @Readonly Entry<? extends K, ? extends V> entry) {
     checkNotNull(entry);
     return new AbstractMapEntry<K, V>() {
       @Override
@@ -1522,9 +1535,9 @@ public V getValue() {
     };
   }
 
-  static <K extends @Nullable Object, V extends @Nullable Object>
-      UnmodifiableIterator<Entry<K, V>> unmodifiableEntryIterator(
-          final Iterator<Entry<K, V>> entryIterator) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly  Object>
+    @Readonly UnmodifiableIterator<Entry<K, V>> unmodifiableEntryIterator(
+          final @Readonly Iterator<Entry<K, V>> entryIterator) {
     return new UnmodifiableIterator<Entry<K, V>>() {
       @Override
       public boolean hasNext() {
@@ -1539,21 +1552,22 @@ public Entry<K, V> next() {
   }
 
   /** @see Multimaps#unmodifiableEntries */
-  static class UnmodifiableEntries<K extends @Nullable Object, V extends @Nullable Object>
-      extends ForwardingCollection<Entry<K, V>> {
-    private final Collection<Entry<K, V>> entries;
+  @Immutable
+  static class UnmodifiableEntries<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+      extends ForwardingCollection<@Readonly Entry<K, V>> {
+    private final @Readonly Collection<@Readonly Entry<K, V>> entries;
 
-    UnmodifiableEntries(Collection<Entry<K, V>> entries) {
+    UnmodifiableEntries(@Readonly Collection<@Readonly Entry<K, V>> entries) {
       this.entries = entries;
     }
 
     @Override
-    protected Collection<Entry<K, V>> delegate() {
+    protected @Readonly Collection<@Readonly Entry<K, V>> delegate() {
       return entries;
     }
 
     @Override
-    public Iterator<Entry<K, V>> iterator() {
+    public Iterator<@Readonly Entry<K, V>> iterator() {
       return unmodifiableEntryIterator(entries.iterator());
     }
 
@@ -1575,23 +1589,24 @@ public Iterator<Entry<K, V>> iterator() {
 
     @Override
     @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
-    public <T extends @Nullable @UnknownSignedness Object> T[] toArray(@PolyNull T[] array) {
+    public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(@PolyNull T[] array) {
       return standardToArray(array);
     }
 
   @Pure
   @Override
-  public boolean contains(@Nullable @UnknownSignedness Object arg0) { return super.contains(arg0); }
+  public boolean contains(@Nullable @UnknownSignedness @Readonly Object arg0) { return super.contains(arg0); }
 
   @Pure
   @Override
-  public boolean containsAll(Collection<?> arg0) { return super.containsAll(arg0); }
+  public boolean containsAll(@Readonly Collection<?> arg0) { return super.containsAll(arg0); }
   }
 
   /** @see Maps#unmodifiableEntrySet(Set) */
-  static class UnmodifiableEntrySet<K extends @Nullable Object, V extends @Nullable Object>
-      extends UnmodifiableEntries<K, V> implements Set<Entry<K, V>> {
-    UnmodifiableEntrySet(Set<Entry<K, V>> entries) {
+  @Immutable
+  static class UnmodifiableEntrySet<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+      extends UnmodifiableEntries<K, V> implements Set<@Readonly Entry<K, V>> {
+    UnmodifiableEntrySet(@Readonly Set<@Readonly Entry<K, V>> entries) {
       super(entries);
     }
 
@@ -1599,13 +1614,13 @@ static class UnmodifiableEntrySet<K extends @Nullable Object, V extends @Nullabl
 
     @Pure
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object object) {
+    public boolean equals(@CheckForNull @UnknownSignedness @Readonly Object object) {
       return Sets.equalsImpl(this, object);
     }
 
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness UnmodifiableEntrySet<K, V> this) {
+    public int hashCode(@UnknownSignedness @Readonly UnmodifiableEntrySet<K, V> this) {
       return Sets.hashCodeImpl(this);
     }
   }
@@ -1620,14 +1635,15 @@ public int hashCode(@UnknownSignedness UnmodifiableEntrySet<K, V> this) {
    *
    * @since 16.0
    */
-  public static <A, B> Converter<A, B> asConverter(final BiMap<A, B> bimap) {
+  public static <A extends @Immutable Object, B extends @Immutable Object> Converter<A, B> asConverter(final BiMap<A, B> bimap) {
     return new BiMapConverter<>(bimap);
   }
 
-  private static final class BiMapConverter<A, B> extends Converter<A, B> implements Serializable {
+  @ReceiverDependentMutable
+  private static final class BiMapConverter<A extends @Immutable Object, B extends @Immutable Object> extends Converter<A, B> implements Serializable {
     private final BiMap<A, B> bimap;
 
-    BiMapConverter(BiMap<A, B> bimap) {
+    BiMapConverter(@ReceiverDependentMutable BiMap<A, B> bimap) {
       this.bimap = checkNotNull(bimap);
     }
 
@@ -1642,14 +1658,14 @@ protected A doBackward(B b) {
     }
 
     @SuppressWarnings("signedness:argument")  // diagnostic output
-    private static <X, Y> Y convert(BiMap<X, Y> bimap, X input) {
+    private static <X extends @Immutable Object, Y extends @Immutable Object> Y convert(@Readonly BiMap<X, Y> bimap, X input) {
       Y output = bimap.get(input);
       checkArgument(output != null, "No non-null mapping present for input: %s", input);
       return output;
     }
 
     @Override
-    public boolean equals(@CheckForNull Object object) {
+    public boolean equals(@Readonly BiMapConverter<A, B> this, @CheckForNull @Readonly Object object) {
       if (object instanceof BiMapConverter) {
         BiMapConverter<?, ?> that = (BiMapConverter<?, ?>) object;
         return this.bimap.equals(that.bimap);
@@ -1658,13 +1674,13 @@ public boolean equals(@CheckForNull Object object) {
     }
 
     @Override
-    public int hashCode(@UnknownSignedness BiMapConverter<A, B> this) {
+    public int hashCode(@UnknownSignedness @Readonly BiMapConverter<A, B> this) {
       return bimap.hashCode();
     }
 
     // There's really no good way to implement toString() without printing the entire BiMap, right?
     @Override
-    public String toString() {
+    public String toString(@Readonly BiMapConverter<A, B> this) {
       return "Maps.asConverter(" + bimap + ")";
     }
 
@@ -1700,7 +1716,7 @@ public String toString() {
    * @param bimap the bimap to be wrapped in a synchronized view
    * @return a synchronized view of the specified bimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
       BiMap<K, V> synchronizedBiMap(BiMap<K, V> bimap) {
     return Synchronized.biMap(bimap, null);
   }
@@ -1716,27 +1732,28 @@ BiMap<K, V> synchronizedBiMap(BiMap<K, V> bimap) {
    * @param bimap the bimap for which an unmodifiable view is to be returned
    * @return an unmodifiable view of the specified bimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
       BiMap<K, V> unmodifiableBiMap(BiMap<? extends K, ? extends V> bimap) {
     return new UnmodifiableBiMap<>(bimap, null);
   }
 
   /** @see Maps#unmodifiableBiMap(BiMap) */
-  private static class UnmodifiableBiMap<K extends @Nullable Object, V extends @Nullable Object>
+  @Immutable
+  private static class UnmodifiableBiMap<K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
       extends ForwardingMap<K, V> implements BiMap<K, V>, Serializable {
-    final Map<K, V> unmodifiableMap;
-    final BiMap<? extends K, ? extends V> delegate;
-    @RetainedWith @CheckForNull BiMap<V, K> inverse;
-    @CheckForNull transient Set<V> values;
+    final @Readonly Map<K, V> unmodifiableMap;
+    final @Readonly BiMap<? extends K, ? extends V> delegate;
+    @RetainedWith @CheckForNull @Readonly BiMap<V, K> inverse;
+    @CheckForNull transient @Readonly Set<V> values;
 
-    UnmodifiableBiMap(BiMap<? extends K, ? extends V> delegate, @CheckForNull BiMap<V, K> inverse) {
+    UnmodifiableBiMap(@Readonly BiMap<? extends K, ? extends V> delegate, @CheckForNull @Readonly BiMap<V, K> inverse) {
       unmodifiableMap = Collections.unmodifiableMap(delegate);
       this.delegate = delegate;
       this.inverse = inverse;
     }
 
     @Override
-    protected Map<K, V> delegate() {
+    protected @Readonly Map<K, V> delegate() {
       return unmodifiableMap;
     }
 
@@ -1758,7 +1775,7 @@ public V putIfAbsent(K key, V value) {
     }
 
     @Override
-    public boolean remove(@Nullable @UnknownSignedness Object key, @Nullable @UnknownSignedness Object value) {
+    public boolean remove(@Nullable @UnknownSignedness @Readonly Object key, @Nullable @UnknownSignedness @Readonly Object value) {
       throw new UnsupportedOperationException();
     }
 
@@ -1798,7 +1815,7 @@ public V replace(K key, V value) {
     }
 
     @Override
-    public BiMap<V, K> inverse() {
+    public @Readonly BiMap<V, K> inverse() {
       BiMap<V, K> result = inverse;
       return (result == null)
           ? inverse = new UnmodifiableBiMap<>(delegate.inverse(), this)
@@ -1807,7 +1824,7 @@ public BiMap<V, K> inverse() {
 
     @SideEffectFree
     @Override
-    public Set<V> values() {
+    public @Readonly Set<V> values() {
       Set<V> result = values;
       return (result == null) ? values = Collections.unmodifiableSet(delegate.values()) : result;
     }
@@ -1849,8 +1866,8 @@ public Set<V> values() {
    * view, copy the returned map into a new map of your choosing.
    */
   public static <
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
-      Map<K, V2> transformValues(Map<K, V1> fromMap, Function<? super V1, V2> function) {
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
+      @PolyMutable Map<K, V2> transformValues(@PolyMutable Map<K, V1> fromMap, Function<? super V1, V2> function) {
     return transformEntries(fromMap, asEntryTransformer(function));
   }
 
@@ -1891,7 +1908,7 @@ Map<K, V2> transformValues(Map<K, V1> fromMap, Function<? super V1, V2> function
    * @since 11.0
    */
   public static <
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       SortedMap<K, V2> transformValues(
           SortedMap<K, V1> fromMap, Function<? super V1, V2> function) {
     return transformEntries(fromMap, asEntryTransformer(function));
@@ -1937,7 +1954,7 @@ SortedMap<K, V2> transformValues(
    */
   @GwtIncompatible // NavigableMap
   public static <
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       NavigableMap<K, V2> transformValues(
           NavigableMap<K, V1> fromMap, Function<? super V1, V2> function) {
     return transformEntries(fromMap, asEntryTransformer(function));
@@ -1991,10 +2008,10 @@ NavigableMap<K, V2> transformValues(
    * @since 7.0
    */
   public static <
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
-      Map<K, V2> transformEntries(
-          Map<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
-    return new TransformedEntriesMap<>(fromMap, transformer);
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
+    @PolyMutable Map<K, V2> transformEntries(
+          @PolyMutable Map<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
+    return new @PolyMutable TransformedEntriesMap<>(fromMap, transformer);
   }
 
   /**
@@ -2045,7 +2062,7 @@ Map<K, V2> transformEntries(
    * @since 11.0
    */
   public static <
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       SortedMap<K, V2> transformEntries(
           SortedMap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
     return new TransformedEntriesSortedMap<>(fromMap, transformer);
@@ -2101,7 +2118,7 @@ SortedMap<K, V2> transformEntries(
    */
   @GwtIncompatible // NavigableMap
   public static <
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       NavigableMap<K, V2> transformEntries(
           NavigableMap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
     return new TransformedEntriesNavigableMap<>(fromMap, transformer);
@@ -2117,8 +2134,9 @@ NavigableMap<K, V2> transformEntries(
    * @since 7.0
    */
   @FunctionalInterface
+  @ReceiverDependentMutable
   public interface EntryTransformer<
-      K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object> {
+      K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object> {
     /**
      * Determines an output value based on a key-value pair. This method is <i>generally
      * expected</i>, but not absolutely required, to have the following properties:
@@ -2137,7 +2155,7 @@ public interface EntryTransformer<
   }
 
   /** Views a function as an entry transformer that ignores the entry key. */
-  static <K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+  static <K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       EntryTransformer<K, V1, V2> asEntryTransformer(final Function<? super V1, V2> function) {
     checkNotNull(function);
     return new EntryTransformer<K, V1, V2>() {
@@ -2149,7 +2167,7 @@ public V2 transformEntry(@ParametricNullness K key, @ParametricNullness V1 value
     };
   }
 
-  static <K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+  static <K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       Function<V1, V2> asValueToValueFunction(
           final EntryTransformer<? super K, V1, V2> transformer, @ParametricNullness final K key) {
     checkNotNull(transformer);
@@ -2163,7 +2181,7 @@ public V2 apply(@ParametricNullness V1 v1) {
   }
 
   /** Views an entry transformer as a function from {@code Entry} to values. */
-  static <K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+  static <K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       Function<Entry<K, V1>, V2> asEntryToValueFunction(
           final EntryTransformer<? super K, ? super V1, V2> transformer) {
     checkNotNull(transformer);
@@ -2177,7 +2195,7 @@ public V2 apply(Entry<K, V1> entry) {
   }
 
   /** Returns a view of an entry transformed by the specified transformer. */
-  static <V2 extends @Nullable Object, K extends @Nullable Object, V1 extends @Nullable Object>
+  static <V2 extends @Nullable @Readonly Object, K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object>
       Entry<K, V2> transformEntry(
           final EntryTransformer<? super K, ? super V1, V2> transformer, final Entry<K, V1> entry) {
     checkNotNull(transformer);
@@ -2198,7 +2216,7 @@ public V2 getValue() {
   }
 
   /** Views an entry transformer as a function from entries to entries. */
-  static <K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+  static <K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       Function<Entry<K, V1>, Entry<K, V2>> asEntryToEntryFunction(
           final EntryTransformer<? super K, ? super V1, V2> transformer) {
     checkNotNull(transformer);
@@ -2210,31 +2228,32 @@ public Entry<K, V2> apply(final Entry<K, V1> entry) {
     };
   }
 
+  @ReceiverDependentMutable
   static class TransformedEntriesMap<
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       extends IteratorBasedAbstractMap<K, V2> {
     final Map<K, V1> fromMap;
     final EntryTransformer<? super K, ? super V1, V2> transformer;
 
     TransformedEntriesMap(
-        Map<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
+            @ReceiverDependentMutable Map<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
       this.fromMap = checkNotNull(fromMap);
       this.transformer = checkNotNull(transformer);
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly TransformedEntriesMap<K, V1, V2> this) {
       return fromMap.size();
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@Readonly TransformedEntriesMap<K, V1, V2> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return fromMap.containsKey(key);
     }
 
     @Override
     @CheckForNull
-    public V2 get(@CheckForNull @UnknownSignedness Object key) {
+    public V2 get(@Readonly TransformedEntriesMap<K, V1, V2> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return getOrDefault(key, null);
     }
 
@@ -2242,7 +2261,7 @@ public V2 get(@CheckForNull @UnknownSignedness Object key) {
     @SuppressWarnings("unchecked")
     @Override
     @CheckForNull
-    public V2 getOrDefault(@CheckForNull @UnknownSignedness Object key, @CheckForNull V2 defaultValue) {
+    public V2 getOrDefault(@Readonly TransformedEntriesMap<K, V1, V2> this, @CheckForNull @UnknownSignedness @Readonly Object key, @CheckForNull V2 defaultValue) {
       V1 value = fromMap.get(key);
       if (value != null || fromMap.containsKey(key)) {
         // The cast is safe because of the containsKey check.
@@ -2255,7 +2274,7 @@ public V2 getOrDefault(@CheckForNull @UnknownSignedness Object key, @CheckForNul
     @SuppressWarnings("unchecked")
     @Override
     @CheckForNull
-    public V2 remove(@CheckForNull @UnknownSignedness Object key) {
+    public V2 remove(@Mutable TransformedEntriesMap<K, V1, V2> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return fromMap.containsKey(key)
           // The cast is safe because of the containsKey check.
           ? transformer.transformEntry((K) key, uncheckedCastNullableTToT(fromMap.remove(key)))
@@ -2263,23 +2282,23 @@ public V2 remove(@CheckForNull @UnknownSignedness Object key) {
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable TransformedEntriesMap<K, V1, V2> this) {
       fromMap.clear();
     }
 
     @Override
-    public Set<@KeyFor({"this"}) K> keySet() {
+    public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable TransformedEntriesMap<K, V1, V2> this) {
       return fromMap.keySet();
     }
 
     @Override
-    Iterator<Entry<K, V2>> entryIterator() {
+    Iterator<@PolyMutable Entry<K, V2>> entryIterator(@PolyMutable TransformedEntriesMap<K, V1, V2> this) {
       return Iterators.transform(
           fromMap.entrySet().iterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer));
     }
 
     @Override
-    Spliterator<Entry<K, V2>> entrySpliterator() {
+    Spliterator<@PolyMutable Entry<K, V2>> entrySpliterator(@PolyMutable TransformedEntriesMap<K, V1, V2> this) {
       return CollectSpliterators.map(
           fromMap.entrySet().spliterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer));
     }
@@ -2292,167 +2311,170 @@ public void forEach(BiConsumer<? super K, ? super V2> action) {
     }
 
     @Override
-    public Collection<V2> values() {
-      return new Values<>(this);
+    public @PolyMutable Collection<V2> values(@PolyMutable TransformedEntriesMap<K, V1, V2> this) {
+      return new @PolyMutable Values<>(this);
     }
   }
 
+  @ReceiverDependentMutable
   static class TransformedEntriesSortedMap<
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       extends TransformedEntriesMap<K, V1, V2> implements SortedMap<K, V2> {
 
-    protected SortedMap<K, V1> fromMap() {
-      return (SortedMap<K, V1>) fromMap;
+    protected @PolyMutable SortedMap<K, V1> fromMap(@PolyMutable TransformedEntriesSortedMap<K, V1, V2> this) {
+      return (@PolyMutable SortedMap<K, V1>) fromMap;
     }
 
     TransformedEntriesSortedMap(
-        SortedMap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
+            @ReceiverDependentMutable SortedMap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
       super(fromMap, transformer);
     }
 
     @Override
     @CheckForNull
-    public Comparator<? super K> comparator() {
+    public Comparator<? super K> comparator(@Readonly TransformedEntriesSortedMap<K, V1, V2> this) {
       return fromMap().comparator();
     }
 
     @Override
     @ParametricNullness
-    public @KeyFor("this") K firstKey() {
+    public @KeyFor("this") K firstKey(@Readonly TransformedEntriesSortedMap<K, V1, V2> this) {
       return fromMap().firstKey();
     }
 
     @Override
-    public SortedMap<K, V2> headMap(@ParametricNullness K toKey) {
+    public @PolyMutable SortedMap<K, V2> headMap(@PolyMutable TransformedEntriesSortedMap<K, V1, V2> this, @ParametricNullness K toKey) {
       return transformEntries(fromMap().headMap(toKey), transformer);
     }
 
     @Override
     @ParametricNullness
-    public @KeyFor("this") K lastKey() {
+    public @KeyFor("this") K lastKey(@Readonly TransformedEntriesSortedMap<K, V1, V2> this) {
       return fromMap().lastKey();
     }
 
     @Override
-    public SortedMap<K, V2> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
+    public @PolyMutable SortedMap<K, V2> subMap(@PolyMutable TransformedEntriesSortedMap<K, V1, V2> this, @ParametricNullness K fromKey, @ParametricNullness K toKey) {
       return transformEntries(fromMap().subMap(fromKey, toKey), transformer);
     }
 
     @Override
-    public SortedMap<K, V2> tailMap(@ParametricNullness K fromKey) {
+    public @PolyMutable SortedMap<K, V2> tailMap(@PolyMutable TransformedEntriesSortedMap<K, V1, V2> this, @ParametricNullness K fromKey) {
       return transformEntries(fromMap().tailMap(fromKey), transformer);
     }
   }
 
   @GwtIncompatible // NavigableMap
+  @ReceiverDependentMutable
   private static class TransformedEntriesNavigableMap<
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       extends TransformedEntriesSortedMap<K, V1, V2> implements NavigableMap<K, V2> {
 
     TransformedEntriesNavigableMap(
-        NavigableMap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
+            @ReceiverDependentMutable NavigableMap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
       super(fromMap, transformer);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V2> ceilingEntry(@ParametricNullness K key) {
+    public @PolyMutable Entry<K, V2> ceilingEntry(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this,  @ParametricNullness K key) {
       return transformEntry(fromMap().ceilingEntry(key));
     }
 
     @Override
     @CheckForNull
-    public K ceilingKey(@ParametricNullness K key) {
+    public K ceilingKey(@Readonly TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K key) {
       return fromMap().ceilingKey(key);
     }
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> descendingKeySet() {
+    public @PolyMutable NavigableSet<@KeyFor({"this"}) K> descendingKeySet(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this) {
       return fromMap().descendingKeySet();
     }
 
     @Override
-    public NavigableMap<K, V2> descendingMap() {
+    public @PolyMutable NavigableMap<K, V2> descendingMap(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this) {
       return transformEntries(fromMap().descendingMap(), transformer);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V2> firstEntry() {
+    public @PolyMutable Entry<K, V2> firstEntry(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this) {
       return transformEntry(fromMap().firstEntry());
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V2> floorEntry(@ParametricNullness K key) {
+    public @PolyMutable Entry<K, V2> floorEntry(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K key) {
       return transformEntry(fromMap().floorEntry(key));
     }
 
     @Override
     @CheckForNull
-    public K floorKey(@ParametricNullness K key) {
+    public K floorKey(@Readonly TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K key) {
       return fromMap().floorKey(key);
     }
 
     @Override
-    public NavigableMap<K, V2> headMap(@ParametricNullness K toKey) {
+    public @PolyMutable NavigableMap<K, V2> headMap(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K toKey) {
       return headMap(toKey, false);
     }
 
     @Override
-    public NavigableMap<K, V2> headMap(@ParametricNullness K toKey, boolean inclusive) {
+    public @PolyMutable NavigableMap<K, V2> headMap(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K toKey, boolean inclusive) {
       return transformEntries(fromMap().headMap(toKey, inclusive), transformer);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V2> higherEntry(@ParametricNullness K key) {
+    public @PolyMutable Entry<K, V2> higherEntry(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K key) {
       return transformEntry(fromMap().higherEntry(key));
     }
 
     @Override
     @CheckForNull
-    public K higherKey(@ParametricNullness K key) {
+    public K higherKey(@Readonly TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K key) {
       return fromMap().higherKey(key);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V2> lastEntry() {
+    public @PolyMutable Entry<K, V2> lastEntry(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this) {
       return transformEntry(fromMap().lastEntry());
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V2> lowerEntry(@ParametricNullness K key) {
+    public @PolyMutable Entry<K, V2> lowerEntry(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K key) {
       return transformEntry(fromMap().lowerEntry(key));
     }
 
     @Override
     @CheckForNull
-    public K lowerKey(@ParametricNullness K key) {
+    public K lowerKey(@Readonly TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K key) {
       return fromMap().lowerKey(key);
     }
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> navigableKeySet() {
+    public @PolyMutable NavigableSet<@KeyFor({"this"}) K> navigableKeySet(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this) {
       return fromMap().navigableKeySet();
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V2> pollFirstEntry() {
+    public Entry<K, V2> pollFirstEntry(@Mutable TransformedEntriesNavigableMap<K, V1, V2> this) {
       return transformEntry(fromMap().pollFirstEntry());
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V2> pollLastEntry() {
+    public Entry<K, V2> pollLastEntry(@Mutable TransformedEntriesNavigableMap<K, V1, V2> this) {
       return transformEntry(fromMap().pollLastEntry());
     }
 
     @Override
-    public NavigableMap<K, V2> subMap(
+    public @PolyMutable NavigableMap<K, V2> subMap(
+            @PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this,
         @ParametricNullness K fromKey,
         boolean fromInclusive,
         @ParametricNullness K toKey,
@@ -2462,37 +2484,37 @@ public NavigableMap<K, V2> subMap(
     }
 
     @Override
-    public NavigableMap<K, V2> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
+    public @PolyMutable NavigableMap<K, V2> subMap(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K fromKey, @ParametricNullness K toKey) {
       return subMap(fromKey, true, toKey, false);
     }
 
     @Override
-    public NavigableMap<K, V2> tailMap(@ParametricNullness K fromKey) {
+    public @PolyMutable NavigableMap<K, V2> tailMap(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K fromKey) {
       return tailMap(fromKey, true);
     }
 
     @Override
-    public NavigableMap<K, V2> tailMap(@ParametricNullness K fromKey, boolean inclusive) {
+    public @PolyMutable NavigableMap<K, V2> tailMap(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this, @ParametricNullness K fromKey, boolean inclusive) {
       return transformEntries(fromMap().tailMap(fromKey, inclusive), transformer);
     }
 
     @CheckForNull
-    private Entry<K, V2> transformEntry(@CheckForNull Entry<K, V1> entry) {
+    private @PolyMutable Entry<K, V2> transformEntry(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this, @CheckForNull Entry<K, V1> entry) {
       return (entry == null) ? null : Maps.transformEntry(transformer, entry);
     }
 
     @Override
-    protected NavigableMap<K, V1> fromMap() {
+    protected @PolyMutable NavigableMap<K, V1> fromMap(@PolyMutable TransformedEntriesNavigableMap<K, V1, V2> this) {
       return (NavigableMap<K, V1>) super.fromMap();
     }
   }
 
-  static <K extends @Nullable Object> Predicate<Entry<K, ?>> keyPredicateOnEntries(
+  static <K extends @Nullable @Immutable Object> Predicate<Entry<K, ?>> keyPredicateOnEntries(
       Predicate<? super K> keyPredicate) {
     return compose(keyPredicate, Maps.<K>keyFunction());
   }
 
-  static <V extends @Nullable Object> Predicate<Entry<?, V>> valuePredicateOnEntries(
+  static <V extends @Nullable @Readonly Object> Predicate<Entry<?, V>> valuePredicateOnEntries(
       Predicate<? super V> valuePredicate) {
     return compose(valuePredicate, Maps.<V>valueFunction());
   }
@@ -2520,7 +2542,7 @@ protected NavigableMap<K, V1> fromMap() {
    * {@link Predicate#apply}. Do not provide a predicate such as {@code
    * Predicates.instanceOf(ArrayList.class)}, which is inconsistent with equals.
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> Map<K, V> filterKeys(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Map<K, V> filterKeys(
       Map<K, V> unfiltered, final Predicate<? super K> keyPredicate) {
     checkNotNull(keyPredicate);
     Predicate<Entry<K, ?>> entryPredicate = keyPredicateOnEntries(keyPredicate);
@@ -2555,7 +2577,7 @@ protected NavigableMap<K, V1> fromMap() {
    *
    * @since 11.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> SortedMap<K, V> filterKeys(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> SortedMap<K, V> filterKeys(
       SortedMap<K, V> unfiltered, final Predicate<? super K> keyPredicate) {
     // TODO(lowasser): Return a subclass of Maps.FilteredKeyMap for slightly better
     // performance.
@@ -2589,7 +2611,7 @@ protected NavigableMap<K, V1> fromMap() {
    * @since 14.0
    */
   @GwtIncompatible // NavigableMap
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       NavigableMap<K, V> filterKeys(
           NavigableMap<K, V> unfiltered, final Predicate<? super K> keyPredicate) {
     // TODO(lowasser): Return a subclass of Maps.FilteredKeyMap for slightly better
@@ -2621,7 +2643,7 @@ NavigableMap<K, V> filterKeys(
    *
    * @since 14.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> BiMap<K, V> filterKeys(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object> BiMap<K, V> filterKeys(
       BiMap<K, V> unfiltered, final Predicate<? super K> keyPredicate) {
     checkNotNull(keyPredicate);
     return filterEntries(unfiltered, Maps.<K>keyPredicateOnEntries(keyPredicate));
@@ -2650,7 +2672,7 @@ NavigableMap<K, V> filterKeys(
    * at {@link Predicate#apply}. Do not provide a predicate such as {@code
    * Predicates.instanceOf(ArrayList.class)}, which is inconsistent with equals.
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> Map<K, V> filterValues(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Map<K, V> filterValues(
       Map<K, V> unfiltered, final Predicate<? super V> valuePredicate) {
     return filterEntries(unfiltered, Maps.<V>valuePredicateOnEntries(valuePredicate));
   }
@@ -2681,7 +2703,7 @@ NavigableMap<K, V> filterKeys(
    *
    * @since 11.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SortedMap<K, V> filterValues(
           SortedMap<K, V> unfiltered, final Predicate<? super V> valuePredicate) {
     return filterEntries(unfiltered, Maps.<V>valuePredicateOnEntries(valuePredicate));
@@ -2714,7 +2736,7 @@ SortedMap<K, V> filterValues(
    * @since 14.0
    */
   @GwtIncompatible // NavigableMap
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       NavigableMap<K, V> filterValues(
           NavigableMap<K, V> unfiltered, final Predicate<? super V> valuePredicate) {
     return filterEntries(unfiltered, Maps.<V>valuePredicateOnEntries(valuePredicate));
@@ -2747,7 +2769,7 @@ NavigableMap<K, V> filterValues(
    *
    * @since 14.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> BiMap<K, V> filterValues(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object> BiMap<K, V> filterValues(
       BiMap<K, V> unfiltered, final Predicate<? super V> valuePredicate) {
     return filterEntries(unfiltered, Maps.<V>valuePredicateOnEntries(valuePredicate));
   }
@@ -2776,7 +2798,7 @@ NavigableMap<K, V> filterValues(
    * <p><b>Warning:</b> {@code entryPredicate} must be <i>consistent with equals</i>, as documented
    * at {@link Predicate#apply}.
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> Map<K, V> filterEntries(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Map<K, V> filterEntries(
       Map<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
     checkNotNull(entryPredicate);
     return (unfiltered instanceof AbstractFilteredMap)
@@ -2810,7 +2832,7 @@ NavigableMap<K, V> filterValues(
    *
    * @since 11.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SortedMap<K, V> filterEntries(
           SortedMap<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
     checkNotNull(entryPredicate);
@@ -2846,7 +2868,7 @@ SortedMap<K, V> filterEntries(
    * @since 14.0
    */
   @GwtIncompatible // NavigableMap
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       NavigableMap<K, V> filterEntries(
           NavigableMap<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
     checkNotNull(entryPredicate);
@@ -2882,7 +2904,7 @@ NavigableMap<K, V> filterEntries(
    *
    * @since 14.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> BiMap<K, V> filterEntries(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object> BiMap<K, V> filterEntries(
       BiMap<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
     checkNotNull(unfiltered);
     checkNotNull(entryPredicate);
@@ -2895,7 +2917,7 @@ NavigableMap<K, V> filterEntries(
    * Support {@code clear()}, {@code removeAll()}, and {@code retainAll()} when filtering a filtered
    * map.
    */
-  private static <K extends @Nullable Object, V extends @Nullable Object> Map<K, V> filterFiltered(
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Map<K, V> filterFiltered(
       AbstractFilteredMap<K, V> map, Predicate<? super Entry<K, V>> entryPredicate) {
     return new FilteredEntryMap<>(
         map.unfiltered, Predicates.<Entry<K, V>>and(map.predicate, entryPredicate));
@@ -2905,7 +2927,7 @@ NavigableMap<K, V> filterEntries(
    * Support {@code clear()}, {@code removeAll()}, and {@code retainAll()} when filtering a filtered
    * sorted map.
    */
-  private static <K extends @Nullable Object, V extends @Nullable Object>
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SortedMap<K, V> filterFiltered(
           FilteredEntrySortedMap<K, V> map, Predicate<? super Entry<K, V>> entryPredicate) {
     Predicate<Entry<K, V>> predicate = Predicates.<Entry<K, V>>and(map.predicate, entryPredicate);
@@ -2917,7 +2939,7 @@ SortedMap<K, V> filterFiltered(
    * navigable map.
    */
   @GwtIncompatible // NavigableMap
-  private static <K extends @Nullable Object, V extends @Nullable Object>
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       NavigableMap<K, V> filterFiltered(
           FilteredEntryNavigableMap<K, V> map, Predicate<? super Entry<K, V>> entryPredicate) {
     Predicate<Entry<K, V>> predicate =
@@ -2929,25 +2951,26 @@ NavigableMap<K, V> filterFiltered(
    * Support {@code clear()}, {@code removeAll()}, and {@code retainAll()} when filtering a filtered
    * map.
    */
-  private static <K extends @Nullable Object, V extends @Nullable Object>
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
       BiMap<K, V> filterFiltered(
           FilteredEntryBiMap<K, V> map, Predicate<? super Entry<K, V>> entryPredicate) {
     Predicate<Entry<K, V>> predicate = Predicates.<Entry<K, V>>and(map.predicate, entryPredicate);
     return new FilteredEntryBiMap<>(map.unfiltered(), predicate);
   }
 
+  @ReceiverDependentMutable
   private abstract static class AbstractFilteredMap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends ViewCachingAbstractMap<K, V> {
     final Map<K, V> unfiltered;
     final Predicate<? super Entry<K, V>> predicate;
 
-    AbstractFilteredMap(Map<K, V> unfiltered, Predicate<? super Entry<K, V>> predicate) {
+    AbstractFilteredMap(@ReceiverDependentMutable Map<K, V> unfiltered, Predicate<? super Entry<K, V>> predicate) {
       this.unfiltered = unfiltered;
       this.predicate = predicate;
     }
 
-    boolean apply(@CheckForNull Object key, @ParametricNullness V value) {
+    boolean apply(@CheckForNull @Readonly Object key, @ParametricNullness V value) {
       // This method is called only when the key is in the map (or about to be added to the map),
       // implying that key is a K.
       @SuppressWarnings({"unchecked", "nullness"})
@@ -2957,13 +2980,13 @@ boolean apply(@CheckForNull Object key, @ParametricNullness V value) {
 
     @Override
     @CheckForNull
-    public V put(@ParametricNullness K key, @ParametricNullness V value) {
+    public V put(@Mutable AbstractFilteredMap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
       checkArgument(apply(key, value));
       return unfiltered.put(key, value);
     }
 
     @Override
-    public void putAll(Map<? extends K, ? extends V> map) {
+    public void putAll(@Mutable AbstractFilteredMap<K, V> this, @Readonly Map<? extends K, ? extends V> map) {
       for (Entry<? extends K, ? extends V> entry : map.entrySet()) {
         checkArgument(apply(entry.getKey(), entry.getValue()));
       }
@@ -2972,108 +2995,110 @@ public void putAll(Map<? extends K, ? extends V> map) {
 
     @Pure
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@Readonly AbstractFilteredMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return unfiltered.containsKey(key) && apply(key, unfiltered.get(key));
     }
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull @UnknownSignedness Object key) {
+    public V get(@Readonly AbstractFilteredMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       V value = unfiltered.get(key);
       return ((value != null) && apply(key, value)) ? value : null;
     }
 
     @Pure
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly AbstractFilteredMap<K, V>this) {
       return entrySet().isEmpty();
     }
 
     @Override
     @CheckForNull
-    public V remove(@CheckForNull @UnknownSignedness Object key) {
+    public V remove(@Mutable AbstractFilteredMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return containsKey(key) ? unfiltered.remove(key) : null;
     }
 
     @Override
-    Collection<V> createValues() {
-      return new FilteredMapValues<>(this, unfiltered, predicate);
+    @PolyMutable Collection<V> createValues(@PolyMutable AbstractFilteredMap<K, V> this) {
+      return new @PolyMutable FilteredMapValues<>(this, unfiltered, predicate);
     }
   }
 
+  @ReceiverDependentMutable
   private static final class FilteredMapValues<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends Maps.Values<K, V> {
-    final Map<K, V> unfiltered;
-    final Predicate<? super Entry<K, V>> predicate;
-
-    FilteredMapValues(
-        Map<K, V> filteredMap, Map<K, V> unfiltered, Predicate<? super Entry<K, V>> predicate) {
-      super(filteredMap);
-      this.unfiltered = unfiltered;
-      this.predicate = predicate;
-    }
+      final Map<K, V> unfiltered;
+      final Predicate<? super Entry<K, V>> predicate;
+
+      FilteredMapValues(
+              @ReceiverDependentMutable Map<K, V> filteredMap, Map<K, V> unfiltered, Predicate<? super Entry<K, V>> predicate) {
+          super(filteredMap);
+          this.unfiltered = unfiltered;
+          this.predicate = predicate;
+      }
 
-    @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
-      Iterator<Entry<K, V>> entryItr = unfiltered.entrySet().iterator();
-      while (entryItr.hasNext()) {
-        Entry<K, V> entry = entryItr.next();
-        if (predicate.apply(entry) && Objects.equal(entry.getValue(), o)) {
-          entryItr.remove();
-          return true;
-        }
+      @Override
+      public boolean remove(@Mutable FilteredMapValues<K, V>this, @Readonly @CheckForNull @UnknownSignedness Object o) {
+          Iterator<Entry<K, V>> entryItr = unfiltered.entrySet().iterator();
+          while (entryItr.hasNext()) {
+              Entry<K, V> entry = entryItr.next();
+              if (predicate.apply(entry) && Objects.equal(entry.getValue(), o)) {
+                  entryItr.remove();
+                  return true;
+              }
+          }
+          return false;
       }
-      return false;
-    }
 
-    @Override
-    public boolean removeAll(Collection<?> collection) {
-      Iterator<Entry<K, V>> entryItr = unfiltered.entrySet().iterator();
-      boolean result = false;
-      while (entryItr.hasNext()) {
-        Entry<K, V> entry = entryItr.next();
-        if (predicate.apply(entry) && collection.contains(entry.getValue())) {
-          entryItr.remove();
-          result = true;
-        }
+      @Override
+      public boolean removeAll(@Mutable FilteredMapValues<K, V>this, @Readonly Collection<?> collection) {
+          Iterator<Entry<K, V>> entryItr = unfiltered.entrySet().iterator();
+          boolean result = false;
+          while (entryItr.hasNext()) {
+              Entry<K, V> entry = entryItr.next();
+              if (predicate.apply(entry) && collection.contains(entry.getValue())) {
+                  entryItr.remove();
+                  result = true;
+              }
+          }
+          return result;
       }
-      return result;
-    }
 
-    @Override
-    public boolean retainAll(Collection<?> collection) {
-      Iterator<Entry<K, V>> entryItr = unfiltered.entrySet().iterator();
-      boolean result = false;
-      while (entryItr.hasNext()) {
-        Entry<K, V> entry = entryItr.next();
-        if (predicate.apply(entry) && !collection.contains(entry.getValue())) {
-          entryItr.remove();
-          result = true;
-        }
+      @Override
+      public boolean retainAll(@Mutable FilteredMapValues<K, V>this, @Readonly Collection<?> collection) {
+          Iterator<Entry<K, V>> entryItr = unfiltered.entrySet().iterator();
+          boolean result = false;
+          while (entryItr.hasNext()) {
+              Entry<K, V> entry = entryItr.next();
+              if (predicate.apply(entry) && !collection.contains(entry.getValue())) {
+                  entryItr.remove();
+                  result = true;
+              }
+          }
+          return result;
       }
-      return result;
-    }
 
-    @Override
-    public @PolyNull @PolySigned Object[] toArray(FilteredMapValues<@PolyNull @PolySigned K, V> this) {
-      // creating an ArrayList so filtering happens once
-      return Lists.newArrayList(iterator()).toArray();
-    }
+      @Override
+      public @PolyNull @PolySigned @PolyMutable Object[] toArray(FilteredMapValues<@PolyNull @PolySigned @PolyMutable K, V>this) {
+          // creating an ArrayList so filtering happens once
+          return Lists.newArrayList(iterator()).toArray();
+      }
 
-    @Override
-    @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
-    public <T extends @Nullable @UnknownSignedness Object> T[] toArray(T[] array) {
-      return Lists.newArrayList(iterator()).toArray(array);
-    }
+      @Override
+      @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
+      public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(T[] array) {
+          return Lists.newArrayList(iterator()).toArray(array);
+      }
   }
 
-  private static class FilteredKeyMap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class FilteredKeyMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractFilteredMap<K, V> {
     final Predicate<? super K> keyPredicate;
 
     FilteredKeyMap(
-        Map<K, V> unfiltered,
+            @ReceiverDependentMutable Map<K, V> unfiltered,
         Predicate<? super K> keyPredicate,
         Predicate<? super Entry<K, V>> entryPredicate) {
       super(unfiltered, entryPredicate);
@@ -3081,12 +3106,12 @@ private static class FilteredKeyMap<K extends @Nullable Object, V extends @Nulla
     }
 
     @Override
-    protected Set<Entry<K, V>> createEntrySet() {
+    protected @PolyMutable Set<@PolyMutable Entry<K, V>> createEntrySet(@PolyMutable FilteredKeyMap<K, V> this) {
       return Sets.filter(unfiltered.entrySet(), predicate);
     }
 
     @Override
-    Set<K> createKeySet() {
+    @PolyMutable Set<K> createKeySet(@PolyMutable FilteredKeyMap<K, V> this) {
       return Sets.filter(unfiltered.keySet(), keyPredicate);
     }
 
@@ -3095,38 +3120,41 @@ Set<K> createKeySet() {
     @Pure
     @Override
     @SuppressWarnings("unchecked")
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@Readonly FilteredKeyMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return unfiltered.containsKey(key) && keyPredicate.apply((K) key);
     }
   }
 
-  static class FilteredEntryMap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class FilteredEntryMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractFilteredMap<K, V> {
     /**
      * Entries in this set satisfy the predicate, but they don't validate the input to {@code
      * Entry.setValue()}.
      */
-    final Set<Entry<K, V>> filteredEntrySet;
+    final Set<@ReceiverDependentMutable Entry<K, V>> filteredEntrySet;
 
-    FilteredEntryMap(Map<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
+    FilteredEntryMap(@ReceiverDependentMutable Map<K, V> unfiltered, Predicate<? super @ReceiverDependentMutable Entry<K, V>> entryPredicate) {
       super(unfiltered, entryPredicate);
       filteredEntrySet = Sets.filter(unfiltered.entrySet(), predicate);
     }
 
     @Override
-    protected Set<Entry<K, V>> createEntrySet() {
+    protected @PolyMutable Set<@PolyMutable Entry<K, V>> createEntrySet(@PolyMutable FilteredEntryMap<K, V> this) {
       return new EntrySet();
     }
 
     @WeakOuter
-    private class EntrySet extends ForwardingSet<Entry<K, V>> {
+    @ReceiverDependentMutable
+    @CFComment("PICO: outer receiver dependency")
+    private class EntrySet extends ForwardingSet<@Readonly Entry<K, V>> {
       @Override
-      protected Set<Entry<K, V>> delegate() {
+      protected Set<@Readonly Entry<K, V>> delegate() {
         return filteredEntrySet;
       }
 
       @Override
-      public Iterator<Entry<K, V>> iterator() {
+      public Iterator<@Readonly Entry<K, V>> iterator() {
         return new TransformedIterator<Entry<K, V>, Entry<K, V>>(filteredEntrySet.iterator()) {
           @Override
           Entry<K, V> transform(final Entry<K, V> entry) {
@@ -3153,8 +3181,8 @@ Set<K> createKeySet() {
       return new KeySet();
     }
 
-    static <K extends @Nullable Object, V extends @Nullable Object> boolean removeAllKeys(
-        Map<K, V> map, Predicate<? super Entry<K, V>> entryPredicate, Collection<?> keyCollection) {
+    static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> boolean removeAllKeys(
+        @Mutable Map<K, V> map, Predicate<? super Entry<K, V>> entryPredicate, @Readonly Collection<?> keyCollection) {
       Iterator<Entry<K, V>> entryItr = map.entrySet().iterator();
       boolean result = false;
       while (entryItr.hasNext()) {
@@ -3167,8 +3195,8 @@ Set<K> createKeySet() {
       return result;
     }
 
-    static <K extends @Nullable Object, V extends @Nullable Object> boolean retainAllKeys(
-        Map<K, V> map, Predicate<? super Entry<K, V>> entryPredicate, Collection<?> keyCollection) {
+    static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> boolean retainAllKeys(
+        @Mutable Map<K, V> map, Predicate<? super Entry<K, V>> entryPredicate, @Readonly Collection<?> keyCollection) {
       Iterator<Entry<K, V>> entryItr = map.entrySet().iterator();
       boolean result = false;
       while (entryItr.hasNext()) {
@@ -3182,13 +3210,14 @@ Set<K> createKeySet() {
     }
 
     @WeakOuter
+    @ReceiverDependentMutable
     class KeySet extends Maps.KeySet<K, V> {
       KeySet() {
         super(FilteredEntryMap.this);
       }
 
       @Override
-      public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+      public boolean remove(@Mutable KeySet this, @CheckForNull @UnknownSignedness @Readonly Object o) {
         if (containsKey(o)) {
           unfiltered.remove(o);
           return true;
@@ -3197,12 +3226,12 @@ public boolean remove(@CheckForNull @UnknownSignedness Object o) {
       }
 
       @Override
-      public boolean removeAll(Collection<?> collection) {
+      public boolean removeAll(@Mutable KeySet this, @Readonly Collection<?> collection) {
         return removeAllKeys(unfiltered, predicate, collection);
       }
 
       @Override
-      public boolean retainAll(Collection<?> collection) {
+      public boolean retainAll(@Mutable KeySet this, @Readonly Collection<?> collection) {
         return retainAllKeys(unfiltered, predicate, collection);
       }
 
@@ -3220,34 +3249,36 @@ public boolean retainAll(Collection<?> collection) {
 
     @Pure
     @Override
-    public boolean contains(@Nullable @UnknownSignedness Object arg0) { return super.contains(arg0); }
+    public boolean contains(@Nullable @UnknownSignedness @Readonly Object arg0) { return super.contains(arg0); }
     }
   }
 
+  @ReceiverDependentMutable
   private static class FilteredEntrySortedMap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends FilteredEntryMap<K, V> implements SortedMap<K, V> {
 
     FilteredEntrySortedMap(
-        SortedMap<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
+            @ReceiverDependentMutable SortedMap<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
       super(unfiltered, entryPredicate);
     }
 
-    SortedMap<K, V> sortedMap() {
-      return (SortedMap<K, V>) unfiltered;
+      @PolyMutable SortedMap<K, V> sortedMap(@PolyMutable FilteredEntrySortedMap<K, V> this) {
+      return (@PolyMutable SortedMap<K, V>) unfiltered;
     }
 
     @Override
-    public SortedSet<@KeyFor({"this"}) K> keySet() {
-      return (SortedSet<K>) super.keySet();
+    public @PolyMutable SortedSet<@KeyFor({"this"}) K> keySet(@PolyMutable FilteredEntrySortedMap<K, V> this) {
+      return (@PolyMutable SortedSet<K>) super.keySet();
     }
 
     @Override
-    SortedSet<K> createKeySet() {
+    @PolyMutable SortedSet<K> createKeySet(@PolyMutable FilteredEntrySortedMap<K, V> this) {
       return new SortedKeySet();
     }
 
     @WeakOuter
+    @ReceiverDependentMutable
     class SortedKeySet extends KeySet implements SortedSet<K> {
       @Override
       @CheckForNull
@@ -3256,30 +3287,31 @@ public Comparator<? super K> comparator() {
       }
 
       @Override
-      public SortedSet<K> subSet(
+      public @PolyMutable SortedSet<K> subSet(
+              @PolyMutable SortedKeySet this,
           @ParametricNullness K fromElement, @ParametricNullness K toElement) {
-        return (SortedSet<K>) subMap(fromElement, toElement).keySet();
+        return (@PolyMutable SortedSet<K>) subMap(fromElement, toElement).keySet();
       }
 
       @Override
-      public SortedSet<K> headSet(@ParametricNullness K toElement) {
-        return (SortedSet<K>) headMap(toElement).keySet();
+      public @PolyMutable SortedSet<K> headSet(@PolyMutable SortedKeySet this, @ParametricNullness K toElement) {
+        return (@PolyMutable SortedSet<K>) headMap(toElement).keySet();
       }
 
       @Override
-      public SortedSet<K> tailSet(@ParametricNullness K fromElement) {
-        return (SortedSet<K>) tailMap(fromElement).keySet();
+      public @PolyMutable SortedSet<K> tailSet(@PolyMutable SortedKeySet this, @ParametricNullness K fromElement) {
+        return (@PolyMutable SortedSet<K>) tailMap(fromElement).keySet();
       }
 
       @Override
       @ParametricNullness
-      public K first() {
+      public K first(@Readonly SortedKeySet this) {
         return firstKey();
       }
 
       @Override
       @ParametricNullness
-      public K last() {
+      public K last(@Readonly SortedKeySet this) {
         return lastKey();
       }
     }
@@ -3292,14 +3324,14 @@ public Comparator<? super K> comparator() {
 
     @Override
     @ParametricNullness
-    public @KeyFor("this") K firstKey() {
+    public @KeyFor("this") K firstKey(@Readonly FilteredEntrySortedMap<K, V> this) {
       // correctly throws NoSuchElementException when filtered map is empty.
       return keySet().iterator().next();
     }
 
     @Override
     @ParametricNullness
-    public @KeyFor("this") K lastKey() {
+    public @KeyFor("this") K lastKey(@Readonly FilteredEntrySortedMap<K, V> this) {
       SortedMap<K, V> headMap = sortedMap();
       while (true) {
         // correctly throws NoSuchElementException when filtered map is empty.
@@ -3313,24 +3345,25 @@ public Comparator<? super K> comparator() {
     }
 
     @Override
-    public SortedMap<K, V> headMap(@ParametricNullness K toKey) {
-      return new FilteredEntrySortedMap<>(sortedMap().headMap(toKey), predicate);
+    public @PolyMutable SortedMap<K, V> headMap(@PolyMutable FilteredEntrySortedMap<K, V> this, @ParametricNullness K toKey) {
+      return new @PolyMutable FilteredEntrySortedMap<>(sortedMap().headMap(toKey), predicate);
     }
 
     @Override
-    public SortedMap<K, V> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
-      return new FilteredEntrySortedMap<>(sortedMap().subMap(fromKey, toKey), predicate);
+    public @PolyMutable SortedMap<K, V> subMap(@PolyMutable FilteredEntrySortedMap<K, V> this, @ParametricNullness K fromKey, @ParametricNullness K toKey) {
+      return new @PolyMutable FilteredEntrySortedMap<>(sortedMap().subMap(fromKey, toKey), predicate);
     }
 
     @Override
-    public SortedMap<K, V> tailMap(@ParametricNullness K fromKey) {
-      return new FilteredEntrySortedMap<>(sortedMap().tailMap(fromKey), predicate);
+    public @PolyMutable SortedMap<K, V> tailMap(@PolyMutable FilteredEntrySortedMap<K, V> this, @ParametricNullness K fromKey) {
+      return new @PolyMutable FilteredEntrySortedMap<>(sortedMap().tailMap(fromKey), predicate);
     }
   }
 
   @GwtIncompatible // NavigableMap
+  @ReceiverDependentMutable
   private static class FilteredEntryNavigableMap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractNavigableMap<K, V> {
     /*
      * It's less code to extend AbstractNavigableMap and forward the filtering logic to
@@ -3339,11 +3372,11 @@ private static class FilteredEntryNavigableMap<
      */
 
     private final NavigableMap<K, V> unfiltered;
-    private final Predicate<? super Entry<K, V>> entryPredicate;
+    private final Predicate<? super @ReceiverDependentMutable Entry<K, V>> entryPredicate;
     private final Map<K, V> filteredDelegate;
 
     FilteredEntryNavigableMap(
-        NavigableMap<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
+            @ReceiverDependentMutable NavigableMap<K, V> unfiltered, Predicate<? super @ReceiverDependentMutable Entry<K, V>> entryPredicate) {
       this.unfiltered = checkNotNull(unfiltered);
       this.entryPredicate = entryPredicate;
       this.filteredDelegate = new FilteredEntryMap<>(unfiltered, entryPredicate);
@@ -3356,102 +3389,103 @@ public Comparator<? super K> comparator() {
     }
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> navigableKeySet() {
+    public @PolyMutable NavigableSet<@KeyFor({"this"}) K> navigableKeySet(@PolyMutable FilteredEntryNavigableMap<K, V> this) {
       return new Maps.NavigableKeySet<K, V>(this) {
         @Override
-        public boolean removeAll(Collection<?> collection) {
+        public boolean removeAll(@Readonly Collection<?> collection) {
           return FilteredEntryMap.removeAllKeys(unfiltered, entryPredicate, collection);
         }
 
         @Override
-        public boolean retainAll(Collection<?> collection) {
+        public boolean retainAll(@Readonly Collection<?> collection) {
           return FilteredEntryMap.retainAllKeys(unfiltered, entryPredicate, collection);
         }
       };
     }
 
     @Override
-    public Collection<V> values() {
-      return new FilteredMapValues<>(this, unfiltered, entryPredicate);
+    public @PolyMutable Collection<V> values(@PolyMutable FilteredEntryNavigableMap<K, V> this) {
+      return new @PolyMutable FilteredMapValues<>(this, unfiltered, entryPredicate);
     }
 
     @Override
-    Iterator<Entry<K, V>> entryIterator() {
+    @Readonly Iterator<@PolyMutable Entry<K, V>> entryIterator(@PolyMutable FilteredEntryNavigableMap<K, V> this) {
       return Iterators.filter(unfiltered.entrySet().iterator(), entryPredicate);
     }
 
     @Override
-    Iterator<Entry<K, V>> descendingEntryIterator() {
+    @Readonly Iterator<@PolyMutable Entry<K, V>> descendingEntryIterator(@PolyMutable FilteredEntryNavigableMap<K, V> this) {
       return Iterators.filter(unfiltered.descendingMap().entrySet().iterator(), entryPredicate);
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly FilteredEntryNavigableMap<K, V> this) {
       return filteredDelegate.size();
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly FilteredEntryNavigableMap<K, V> this) {
       return !Iterables.any(unfiltered.entrySet(), entryPredicate);
     }
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull @UnknownSignedness Object key) {
+    public V get(@Readonly FilteredEntryNavigableMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return filteredDelegate.get(key);
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@Readonly FilteredEntryNavigableMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return filteredDelegate.containsKey(key);
     }
 
     @Override
     @CheckForNull
-    public V put(@ParametricNullness K key, @ParametricNullness V value) {
+    public V put(@Mutable FilteredEntryNavigableMap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
       return filteredDelegate.put(key, value);
     }
 
     @Override
     @CheckForNull
-    public V remove(@CheckForNull @UnknownSignedness Object key) {
+    public V remove(@Mutable FilteredEntryNavigableMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return filteredDelegate.remove(key);
     }
 
     @Override
-    public void putAll(Map<? extends K, ? extends V> m) {
+    public void putAll(@Mutable FilteredEntryNavigableMap<K, V> this, @Readonly Map<? extends K, ? extends V> m) {
       filteredDelegate.putAll(m);
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable FilteredEntryNavigableMap<K, V> this) {
       filteredDelegate.clear();
     }
 
     @Override
-    public Set<Entry<@KeyFor({"this"}) K, V>> entrySet() {
+    public @PolyMutable Set<@PolyMutable Entry<@KeyFor({"this"}) K, V>> entrySet(@PolyMutable FilteredEntryNavigableMap<K, V> this) {
       return filteredDelegate.entrySet();
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> pollFirstEntry() {
+    public Entry<K, V> pollFirstEntry(@Mutable FilteredEntryNavigableMap<K, V> this) {
       return Iterables.removeFirstMatching(unfiltered.entrySet(), entryPredicate);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> pollLastEntry() {
+    public Entry<K, V> pollLastEntry(@Mutable FilteredEntryNavigableMap<K, V> this) {
       return Iterables.removeFirstMatching(unfiltered.descendingMap().entrySet(), entryPredicate);
     }
 
     @Override
-    public NavigableMap<K, V> descendingMap() {
+    public @PolyMutable NavigableMap<K, V> descendingMap(@PolyMutable FilteredEntryNavigableMap<K, V> this) {
       return filterEntries(unfiltered.descendingMap(), entryPredicate);
     }
 
     @Override
-    public NavigableMap<K, V> subMap(
+    public @PolyMutable NavigableMap<K, V> subMap(
+            @PolyMutable FilteredEntryNavigableMap<K, V> this,
         @ParametricNullness K fromKey,
         boolean fromInclusive,
         @ParametricNullness K toKey,
@@ -3461,21 +3495,22 @@ public NavigableMap<K, V> subMap(
     }
 
     @Override
-    public NavigableMap<K, V> headMap(@ParametricNullness K toKey, boolean inclusive) {
+    public @PolyMutable NavigableMap<K, V> headMap(@PolyMutable FilteredEntryNavigableMap<K, V> this, @ParametricNullness K toKey, boolean inclusive) {
       return filterEntries(unfiltered.headMap(toKey, inclusive), entryPredicate);
     }
 
     @Override
-    public NavigableMap<K, V> tailMap(@ParametricNullness K fromKey, boolean inclusive) {
+    public @PolyMutable NavigableMap<K, V> tailMap(@PolyMutable FilteredEntryNavigableMap<K, V> this, @ParametricNullness K fromKey, boolean inclusive) {
       return filterEntries(unfiltered.tailMap(fromKey, inclusive), entryPredicate);
     }
   }
 
-  static final class FilteredEntryBiMap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static final class FilteredEntryBiMap<K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
       extends FilteredEntryMap<K, V> implements BiMap<K, V> {
     @RetainedWith private final BiMap<V, K> inverse;
 
-    private static <K extends @Nullable Object, V extends @Nullable Object>
+    private static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
         Predicate<Entry<V, K>> inversePredicate(
             final Predicate<? super Entry<K, V>> forwardPredicate) {
       return new Predicate<Entry<V, K>>() {
@@ -3486,31 +3521,31 @@ public boolean apply(Entry<V, K> input) {
       };
     }
 
-    FilteredEntryBiMap(BiMap<K, V> delegate, Predicate<? super Entry<K, V>> predicate) {
+    FilteredEntryBiMap(@ReceiverDependentMutable BiMap<K, V> delegate, Predicate<? super @ReceiverDependentMutable Entry<K, V>> predicate) {
       super(delegate, predicate);
       this.inverse =
-          new FilteredEntryBiMap<>(delegate.inverse(), inversePredicate(predicate), this);
+          new @ReceiverDependentMutable FilteredEntryBiMap<>(delegate.inverse(), inversePredicate(predicate), this);
     }
 
     private FilteredEntryBiMap(
-        BiMap<K, V> delegate, Predicate<? super Entry<K, V>> predicate, BiMap<V, K> inverse) {
+            @ReceiverDependentMutable BiMap<K, V> delegate, Predicate<? super @ReceiverDependentMutable Entry<K, V>> predicate, @ReceiverDependentMutable BiMap<V, K> inverse) {
       super(delegate, predicate);
       this.inverse = inverse;
     }
 
-    BiMap<K, V> unfiltered() {
-      return (BiMap<K, V>) unfiltered;
+    @PolyMutable BiMap<K, V> unfiltered(@PolyMutable FilteredEntryBiMap<K, V> this) {
+      return (@PolyMutable BiMap<K, V>) unfiltered;
     }
 
     @Override
     @CheckForNull
-    public V forcePut(@ParametricNullness K key, @ParametricNullness V value) {
+    public V forcePut(@Mutable FilteredEntryBiMap<K, V> this, @ParametricNullness K key, @ParametricNullness V value) {
       checkArgument(apply(key, value));
       return unfiltered().forcePut(key, value);
     }
 
     @Override
-    public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
+    public void replaceAll(@Mutable FilteredEntryBiMap<K, V> this, BiFunction<? super K, ? super V, ? extends V> function) {
       unfiltered()
           .replaceAll(
               (key, value) ->
@@ -3520,12 +3555,12 @@ public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
     }
 
     @Override
-    public BiMap<V, K> inverse() {
+    public @PolyMutable BiMap<V, K> inverse(@PolyMutable FilteredEntryBiMap<K, V> this) {
       return inverse;
     }
 
     @Override
-    public Set<V> values() {
+    public @PolyMutable Set<V> values(@PolyMutable FilteredEntryBiMap<K, V> this) {
       return inverse.keySet();
     }
   }
@@ -3549,7 +3584,7 @@ public Set<V> values() {
    * @since 12.0
    */
   @GwtIncompatible // NavigableMap
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       NavigableMap<K, V> unmodifiableNavigableMap(NavigableMap<K, ? extends V> map) {
     checkNotNull(map);
     if (map instanceof UnmodifiableNavigableMap) {
@@ -3562,34 +3597,35 @@ NavigableMap<K, V> unmodifiableNavigableMap(NavigableMap<K, ? extends V> map) {
   }
 
   @CheckForNull
-  private static <K extends @Nullable Object, V extends @Nullable Object>
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Entry<K, V> unmodifiableOrNull(@CheckForNull Entry<K, ? extends V> entry) {
     return (entry == null) ? null : Maps.unmodifiableEntry(entry);
   }
 
   @GwtIncompatible // NavigableMap
-  static class UnmodifiableNavigableMap<K extends @Nullable Object, V extends @Nullable Object>
+  @Immutable
+  static class UnmodifiableNavigableMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends ForwardingSortedMap<K, V> implements NavigableMap<K, V>, Serializable {
-    private final NavigableMap<K, ? extends V> delegate;
+    private final @Readonly NavigableMap<K, ? extends V> delegate;
 
-    UnmodifiableNavigableMap(NavigableMap<K, ? extends V> delegate) {
+    UnmodifiableNavigableMap(@Readonly NavigableMap<K, ? extends V> delegate) {
       this.delegate = delegate;
     }
 
     UnmodifiableNavigableMap(
-        NavigableMap<K, ? extends V> delegate, UnmodifiableNavigableMap<K, V> descendingMap) {
+            @Readonly NavigableMap<K, ? extends V> delegate, @Readonly UnmodifiableNavigableMap<K, V> descendingMap) {
       this.delegate = delegate;
       this.descendingMap = descendingMap;
     }
 
     @Override
-    protected SortedMap<K, V> delegate() {
+    protected @Readonly SortedMap<K, V> delegate() {
       return Collections.unmodifiableSortedMap(delegate);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> lowerEntry(@ParametricNullness K key) {
+    public @Readonly Entry<K, V> lowerEntry(@ParametricNullness K key) {
       return unmodifiableOrNull(delegate.lowerEntry(key));
     }
 
@@ -3601,7 +3637,7 @@ public K lowerKey(@ParametricNullness K key) {
 
     @Override
     @CheckForNull
-    public Entry<K, V> floorEntry(@ParametricNullness K key) {
+    public @Readonly Entry<K, V> floorEntry(@ParametricNullness K key) {
       return unmodifiableOrNull(delegate.floorEntry(key));
     }
 
@@ -3613,7 +3649,7 @@ public K floorKey(@ParametricNullness K key) {
 
     @Override
     @CheckForNull
-    public Entry<K, V> ceilingEntry(@ParametricNullness K key) {
+    public @Readonly Entry<K, V> ceilingEntry(@ParametricNullness K key) {
       return unmodifiableOrNull(delegate.ceilingEntry(key));
     }
 
@@ -3625,7 +3661,7 @@ public K ceilingKey(@ParametricNullness K key) {
 
     @Override
     @CheckForNull
-    public Entry<K, V> higherEntry(@ParametricNullness K key) {
+    public @Readonly Entry<K, V> higherEntry(@ParametricNullness K key) {
       return unmodifiableOrNull(delegate.higherEntry(key));
     }
 
@@ -3637,25 +3673,25 @@ public K higherKey(@ParametricNullness K key) {
 
     @Override
     @CheckForNull
-    public Entry<K, V> firstEntry() {
+    public @Readonly Entry<K, V> firstEntry() {
       return unmodifiableOrNull(delegate.firstEntry());
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> lastEntry() {
+    public @Readonly Entry<K, V> lastEntry() {
       return unmodifiableOrNull(delegate.lastEntry());
     }
 
     @Override
     @CheckForNull
-    public final Entry<K, V> pollFirstEntry() {
+    public final @Readonly Entry<K, V> pollFirstEntry() {
       throw new UnsupportedOperationException();
     }
 
     @Override
     @CheckForNull
-    public final Entry<K, V> pollLastEntry() {
+    public final @Readonly Entry<K, V> pollLastEntry() {
       throw new UnsupportedOperationException();
     }
 
@@ -3671,7 +3707,7 @@ public V putIfAbsent(K key, V value) {
     }
 
     @Override
-    public boolean remove(@Nullable @UnknownSignedness Object key, @Nullable @UnknownSignedness Object value) {
+    public boolean remove(@Nullable @UnknownSignedness @Readonly Object key, @Nullable @UnknownSignedness @Readonly Object value) {
       throw new UnsupportedOperationException();
     }
 
@@ -3713,7 +3749,7 @@ public V replace(K key, V value) {
     @CheckForNull private transient UnmodifiableNavigableMap<K, V> descendingMap;
 
     @Override
-    public NavigableMap<K, V> descendingMap() {
+    public @Readonly NavigableMap<K, V> descendingMap() {
       UnmodifiableNavigableMap<K, V> result = descendingMap;
       return (result == null)
           ? descendingMap = new UnmodifiableNavigableMap<>(delegate.descendingMap(), this)
@@ -3721,27 +3757,27 @@ public NavigableMap<K, V> descendingMap() {
     }
 
     @Override
-    public Set<@KeyFor({"this"}) K> keySet() {
+    public @Readonly Set<@KeyFor({"this"}) K> keySet() {
       return navigableKeySet();
     }
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> navigableKeySet() {
+    public @Readonly NavigableSet<@KeyFor({"this"}) K> navigableKeySet() {
       return Sets.unmodifiableNavigableSet(delegate.navigableKeySet());
     }
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> descendingKeySet() {
+    public @Readonly NavigableSet<@KeyFor({"this"}) K> descendingKeySet() {
       return Sets.unmodifiableNavigableSet(delegate.descendingKeySet());
     }
 
     @Override
-    public SortedMap<K, V> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
+    public @Readonly SortedMap<K, V> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
       return subMap(fromKey, true, toKey, false);
     }
 
     @Override
-    public NavigableMap<K, V> subMap(
+    public @Readonly NavigableMap<K, V> subMap(
         @ParametricNullness K fromKey,
         boolean fromInclusive,
         @ParametricNullness K toKey,
@@ -3751,22 +3787,22 @@ public NavigableMap<K, V> subMap(
     }
 
     @Override
-    public SortedMap<K, V> headMap(@ParametricNullness K toKey) {
+    public @Readonly SortedMap<K, V> headMap(@ParametricNullness K toKey) {
       return headMap(toKey, false);
     }
 
     @Override
-    public NavigableMap<K, V> headMap(@ParametricNullness K toKey, boolean inclusive) {
+    public @Readonly NavigableMap<K, V> headMap(@ParametricNullness K toKey, boolean inclusive) {
       return Maps.unmodifiableNavigableMap(delegate.headMap(toKey, inclusive));
     }
 
     @Override
-    public SortedMap<K, V> tailMap(@ParametricNullness K fromKey) {
+    public @Readonly SortedMap<K, V> tailMap(@ParametricNullness K fromKey) {
       return tailMap(fromKey, true);
     }
 
     @Override
-    public NavigableMap<K, V> tailMap(@ParametricNullness K fromKey, boolean inclusive) {
+    public @Readonly NavigableMap<K, V> tailMap(@ParametricNullness K fromKey, boolean inclusive) {
       return Maps.unmodifiableNavigableMap(delegate.tailMap(fromKey, inclusive));
     }
   }
@@ -3821,7 +3857,7 @@ public NavigableMap<K, V> tailMap(@ParametricNullness K fromKey, boolean inclusi
    * @since 13.0
    */
   @GwtIncompatible // NavigableMap
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       NavigableMap<K, V> synchronizedNavigableMap(NavigableMap<K, V> navigableMap) {
     return Synchronized.navigableMap(navigableMap);
   }
@@ -3831,64 +3867,68 @@ NavigableMap<K, V> synchronizedNavigableMap(NavigableMap<K, V> navigableMap) {
    * entrySet views.
    */
   @GwtCompatible
+  @ReceiverDependentMutable
   abstract static class ViewCachingAbstractMap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractMap<K, V> {
     /**
      * Creates the entry set to be returned by {@link #entrySet()}. This method is invoked at most
      * once on a given map, at the time when {@code entrySet} is first called.
      */
-    abstract Set<Entry<K, V>> createEntrySet();
+    abstract @PolyMutable Set<@PolyMutable Entry<K, V>> createEntrySet(@PolyMutable ViewCachingAbstractMap<K, V> this);
 
-    @CheckForNull private transient Set<Entry<K, V>> entrySet;
+    @CheckForNull private transient Set<@ReceiverDependentMutable Entry<K, V>> entrySet;
 
     @Override
-    public Set<Entry<@KeyFor({"this"}) K, V>> entrySet() {
+    public @PolyMutable Set<@PolyMutable Entry<@KeyFor({"this"}) K, V>> entrySet(@PolyMutable ViewCachingAbstractMap<K, V> this) {
       Set<Entry<K, V>> result = entrySet;
       return (result == null) ? entrySet = createEntrySet() : result;
     }
 
-    @CheckForNull private transient Set<K> keySet;
+    @CFComment("Change to @LazyFinal later")
+    @CheckForNull private transient @Assignable Set<K> keySet;
 
     @Override
-    public Set<@KeyFor({"this"}) K> keySet() {
+    public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable ViewCachingAbstractMap<K, V> this) {
       Set<K> result = keySet;
       return (result == null) ? keySet = createKeySet() : result;
     }
 
-    Set<K> createKeySet() {
+    @PolyMutable Set<K> createKeySet(@PolyMutable ViewCachingAbstractMap<K, V> this) {
       return new KeySet<>(this);
     }
 
-    @CheckForNull private transient Collection<V> values;
+    @CFComment("Change to @LazyFinal later")
+    @CheckForNull private transient @Assignable Collection<V> values;
 
     @Override
-    public Collection<V> values() {
+    public @PolyMutable Collection<V> values(@PolyMutable ViewCachingAbstractMap<K, V> this) {
       Collection<V> result = values;
       return (result == null) ? values = createValues() : result;
     }
 
-    Collection<V> createValues() {
-      return new Values<>(this);
+    @PolyMutable Collection<V> createValues(@PolyMutable ViewCachingAbstractMap<K, V> this) {
+      return new @PolyMutable Values<>(this);
     }
   }
 
+  @ReceiverDependentMutable
   abstract static class IteratorBasedAbstractMap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractMap<K, V> {
     @Override
     public abstract @NonNegative int size();
 
-    abstract Iterator<Entry<K, V>> entryIterator();
+    abstract Iterator<@PolyMutable Entry<K, V>> entryIterator(@PolyMutable IteratorBasedAbstractMap<K, V> this);
 
-    Spliterator<Entry<K, V>> entrySpliterator() {
+    Spliterator<@PolyMutable Entry<K, V>> entrySpliterator(@PolyMutable IteratorBasedAbstractMap<K, V> this) {
       return Spliterators.spliterator(
           entryIterator(), size(), Spliterator.SIZED | Spliterator.DISTINCT);
     }
 
     @Override
-    public Set<Entry<@KeyFor({"this"}) K, V>> entrySet() {
-      return new EntrySet<K, V>() {
+    public Set<@PolyMutable Entry<@KeyFor({"this"}) K, V>> entrySet(@PolyMutable IteratorBasedAbstractMap<K, V> this) {
+      return new @PolyMutable EntrySet<K, V>() {
         @Override
         Map<K, V> map() {
           return IteratorBasedAbstractMap.this;
@@ -3916,7 +3956,7 @@ void forEachEntry(Consumer<? super Entry<K, V>> action) {
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable IteratorBasedAbstractMap<K, V> this) {
       Iterators.clear(entryIterator());
     }
   }
@@ -3926,7 +3966,7 @@ public void clear() {
    * NullPointerException}.
    */
   @CheckForNull
-  static <V extends @Nullable Object> V safeGet(Map<?, V> map, @CheckForNull @UnknownSignedness Object key) {
+  static <V extends @Nullable @Readonly Object> V safeGet(@Readonly Map<?, V> map, @CheckForNull @UnknownSignedness @Readonly Object key) {
     checkNotNull(map);
     try {
       return map.get(key);
@@ -3939,7 +3979,7 @@ public void clear() {
    * Delegates to {@link Map#containsKey}. Returns {@code false} on {@code ClassCastException} and
    * {@code NullPointerException}.
    */
-  static boolean safeContainsKey(Map<?, ?> map, @CheckForNull Object key) {
+  static boolean safeContainsKey(@Readonly Map<?, ?> map, @CheckForNull @Readonly Object key) {
     checkNotNull(map);
     try {
       return map.containsKey(key);
@@ -3953,7 +3993,7 @@ static boolean safeContainsKey(Map<?, ?> map, @CheckForNull Object key) {
    * NullPointerException}.
    */
   @CheckForNull
-  static <V extends @Nullable Object> V safeRemove(Map<?, V> map, @CheckForNull Object key) {
+  static <V extends @Nullable @Readonly Object> V safeRemove(@Mutable Map<?, V> map, @CheckForNull @Readonly Object key) {
     checkNotNull(map);
     try {
       return map.remove(key);
@@ -3963,12 +4003,12 @@ static boolean safeContainsKey(Map<?, ?> map, @CheckForNull Object key) {
   }
 
   /** An admittedly inefficient implementation of {@link Map#containsKey}. */
-  static boolean containsKeyImpl(Map<?, ?> map, @CheckForNull @UnknownSignedness Object key) {
+  static boolean containsKeyImpl(@Readonly Map<?, ?> map, @CheckForNull @UnknownSignedness @Readonly Object key) {
     return Iterators.contains(keyIterator(map.entrySet().iterator()), key);
   }
 
   /** An implementation of {@link Map#containsValue}. */
-  static boolean containsValueImpl(Map<?, ?> map, @CheckForNull @UnknownSignedness Object value) {
+  static boolean containsValueImpl(@Readonly Map<?, ?> map, @CheckForNull @UnknownSignedness @Readonly Object value) {
     return Iterators.contains(valueIterator(map.entrySet().iterator()), value);
   }
 
@@ -3985,12 +4025,12 @@ static boolean containsValueImpl(Map<?, ?> map, @CheckForNull @UnknownSignedness
    * @return {@code true} if {@code c} contains {@code o}
    */
   @Pure
-  static <K extends @Nullable Object, V extends @Nullable Object> boolean containsEntryImpl(
-      Collection<Entry<K, V>> c, @CheckForNull Object o) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> boolean containsEntryImpl(
+          @Readonly Collection<@PolyMutable Entry<K, V>> c, @CheckForNull @Readonly Object o) {
     if (!(o instanceof Entry)) {
       return false;
     }
-    return c.contains(unmodifiableEntry((Entry<?, ?>) o));
+    return c.contains(unmodifiableEntry((@PolyMutable Entry<?, ?>) o));
   }
 
   /**
@@ -4004,16 +4044,15 @@ static boolean containsValueImpl(Map<?, ?> map, @CheckForNull @UnknownSignedness
    * @param o the object to remove from {@code c}
    * @return {@code true} if {@code c} was changed
    */
-  static <K extends @Nullable Object, V extends @Nullable Object> boolean removeEntryImpl(
-      Collection<Entry<K, V>> c, @CheckForNull Object o) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> boolean removeEntryImpl(Collection<@PolyMutable Entry<K, V>> c, @CheckForNull @Readonly Object o) {
     if (!(o instanceof Entry)) {
       return false;
     }
-    return c.remove(unmodifiableEntry((Entry<?, ?>) o));
+    return c.remove(unmodifiableEntry((@PolyMutable Entry<?, ?>) o));
   }
 
   /** An implementation of {@link Map#equals}. */
-  static boolean equalsImpl(Map<?, ?> map, @CheckForNull @UnknownSignedness Object object) {
+  static boolean equalsImpl(@Readonly Map<?, ?> map, @CheckForNull @UnknownSignedness @Readonly Object object) {
     if (map == object) {
       return true;
     } else if (object instanceof Map) {
@@ -4024,7 +4063,7 @@ static boolean equalsImpl(Map<?, ?> map, @CheckForNull @UnknownSignedness Object
   }
 
   /** An implementation of {@link Map#toString}. */
-  static String toStringImpl(Map<?, ?> map) {
+  static String toStringImpl(@Readonly Map<?, ?> map) {
     StringBuilder sb = Collections2.newStringBuilderForCollection(map.size()).append('{');
     boolean first = true;
     for (Entry<?, ?> entry : map.entrySet()) {
@@ -4038,54 +4077,55 @@ static String toStringImpl(Map<?, ?> map) {
   }
 
   /** An implementation of {@link Map#putAll}. */
-  static <K extends @Nullable Object, V extends @Nullable Object> void putAllImpl(
-      Map<K, V> self, Map<? extends K, ? extends V> map) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void putAllImpl(
+      @Mutable Map<K, V> self, Map<? extends K, ? extends V> map) {
     for (Entry<? extends K, ? extends V> entry : map.entrySet()) {
       self.put(entry.getKey(), entry.getValue());
     }
   }
 
-  static class KeySet<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class KeySet<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends Sets.ImprovedAbstractSet<K> {
     @Weak final Map<K, V> map;
 
-    KeySet(Map<K, V> map) {
+    KeySet(@ReceiverDependentMutable Map<K, V> map) {
       this.map = checkNotNull(map);
     }
 
-    Map<K, V> map() {
+    @PolyMutable Map<K, V> map(@PolyMutable KeySet<K, V> this) {
       return map;
     }
 
     @Override
-    public Iterator<K> iterator() {
+    public Iterator<K> iterator(@PolyMutable KeySet<K, V> this) {
       return keyIterator(map().entrySet().iterator());
     }
 
     @Override
-    public void forEach(Consumer<? super K> action) {
+    public void forEach(@Readonly KeySet<K, V> this, Consumer<? super K> action) {
       checkNotNull(action);
       // avoids entry allocation for those maps that allocate entries on iteration
       map.forEach((k, v) -> action.accept(k));
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly KeySet<K, V> this) {
       return map().size();
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly KeySet<K, V> this) {
       return map().isEmpty();
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly KeySet<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       return map().containsKey(o);
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable KeySet<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (contains(o)) {
         map().remove(o);
         return true;
@@ -4094,30 +4134,31 @@ public boolean remove(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable KeySet<K, V> this) {
       map().clear();
     }
   }
 
   @CheckForNull
-  static <K extends @Nullable Object> K keyOrNull(@CheckForNull Entry<K, ?> entry) {
+  static <K extends @Nullable @Immutable Object> K keyOrNull(@CheckForNull @Readonly Entry<K, ?> entry) {
     return (entry == null) ? null : entry.getKey();
   }
 
   @CheckForNull
-  static <V extends @Nullable Object> V valueOrNull(@CheckForNull Entry<?, V> entry) {
+  static <V extends @Nullable @Readonly Object> V valueOrNull(@CheckForNull @Readonly Entry<?, V> entry) {
     return (entry == null) ? null : entry.getValue();
   }
 
-  static class SortedKeySet<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class SortedKeySet<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends KeySet<K, V> implements SortedSet<K> {
-    SortedKeySet(SortedMap<K, V> map) {
+    SortedKeySet(@ReceiverDependentMutable SortedMap<K, V> map) {
       super(map);
     }
 
     @Override
-    SortedMap<K, V> map() {
-      return (SortedMap<K, V>) super.map();
+    @PolyMutable SortedMap<K, V> map(@PolyMutable SortedKeySet<K, V> this) {
+      return (@PolyMutable SortedMap<K, V>) super.map();
     }
 
     @Override
@@ -4127,18 +4168,18 @@ public Comparator<? super K> comparator() {
     }
 
     @Override
-    public SortedSet<K> subSet(@ParametricNullness K fromElement, @ParametricNullness K toElement) {
-      return new SortedKeySet<>(map().subMap(fromElement, toElement));
+    public @PolyMutable SortedSet<K> subSet(@PolyMutable SortedKeySet<K, V> this, @ParametricNullness K fromElement, @ParametricNullness K toElement) {
+      return new @PolyMutable SortedKeySet<>(map().subMap(fromElement, toElement));
     }
 
     @Override
-    public SortedSet<K> headSet(@ParametricNullness K toElement) {
-      return new SortedKeySet<>(map().headMap(toElement));
+    public @PolyMutable SortedSet<K> headSet(@PolyMutable SortedKeySet<K, V> this, @ParametricNullness K toElement) {
+      return new @PolyMutable SortedKeySet<>(map().headMap(toElement));
     }
 
     @Override
-    public SortedSet<K> tailSet(@ParametricNullness K fromElement) {
-      return new SortedKeySet<>(map().tailMap(fromElement));
+    public @PolyMutable SortedSet<K> tailSet(@PolyMutable SortedKeySet<K, V> this, @ParametricNullness K fromElement) {
+      return new @PolyMutable SortedKeySet<>(map().tailMap(fromElement));
     }
 
     @Override
@@ -4155,65 +4196,67 @@ public K last() {
   }
 
   @GwtIncompatible // NavigableMap
-  static class NavigableKeySet<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class NavigableKeySet<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SortedKeySet<K, V> implements NavigableSet<K> {
-    NavigableKeySet(NavigableMap<K, V> map) {
+    NavigableKeySet(@ReceiverDependentMutable NavigableMap<K, V> map) {
       super(map);
     }
 
     @Override
-    NavigableMap<K, V> map() {
-      return (NavigableMap<K, V>) map;
+    @PolyMutable NavigableMap<K, V> map(@PolyMutable NavigableKeySet<K, V> this) {
+      return (@PolyMutable NavigableMap<K, V>) map;
     }
 
     @Override
     @CheckForNull
-    public K lower(@ParametricNullness K e) {
+    public K lower(@Readonly NavigableKeySet<K, V> this, @ParametricNullness K e) {
       return map().lowerKey(e);
     }
 
     @Override
     @CheckForNull
-    public K floor(@ParametricNullness K e) {
+    public K floor(@Readonly NavigableKeySet<K, V> this, @ParametricNullness K e) {
       return map().floorKey(e);
     }
 
     @Override
     @CheckForNull
-    public K ceiling(@ParametricNullness K e) {
+    public K ceiling(@Readonly NavigableKeySet<K, V> this, @ParametricNullness K e) {
       return map().ceilingKey(e);
     }
 
     @Override
     @CheckForNull
-    public K higher(@ParametricNullness K e) {
+    public K higher(@Readonly NavigableKeySet<K, V> this, @ParametricNullness K e) {
       return map().higherKey(e);
     }
 
     @Override
     @CheckForNull
-    public K pollFirst() {
+    public K pollFirst(@Mutable NavigableKeySet<K, V> this) {
       return keyOrNull(map().pollFirstEntry());
     }
 
     @Override
     @CheckForNull
-    public K pollLast() {
+    public K pollLast(@Mutable NavigableKeySet<K, V> this) {
       return keyOrNull(map().pollLastEntry());
     }
 
     @Override
-    public NavigableSet<K> descendingSet() {
+    public @PolyMutable NavigableSet<K> descendingSet(@PolyMutable NavigableKeySet<K, V> this) {
       return map().descendingKeySet();
     }
 
     @Override
-    public Iterator<K> descendingIterator() {
+    public Iterator<K> descendingIterator(@PolyMutable NavigableKeySet<K, V> this) {
       return descendingSet().iterator();
     }
 
     @Override
-    public NavigableSet<K> subSet(
+    public @PolyMutable NavigableSet<K> subSet(
+            @PolyMutable NavigableKeySet<K, V> this,
         @ParametricNullness K fromElement,
         boolean fromInclusive,
         @ParametricNullness K toElement,
@@ -4222,57 +4265,58 @@ public NavigableSet<K> subSet(
     }
 
     @Override
-    public SortedSet<K> subSet(@ParametricNullness K fromElement, @ParametricNullness K toElement) {
+    public @PolyMutable SortedSet<K> subSet(@PolyMutable NavigableKeySet<K, V> this, @ParametricNullness K fromElement, @ParametricNullness K toElement) {
       return subSet(fromElement, true, toElement, false);
     }
 
     @Override
-    public NavigableSet<K> headSet(@ParametricNullness K toElement, boolean inclusive) {
+    public @PolyMutable NavigableSet<K> headSet(@PolyMutable NavigableKeySet<K, V> this, @ParametricNullness K toElement, boolean inclusive) {
       return map().headMap(toElement, inclusive).navigableKeySet();
     }
 
     @Override
-    public SortedSet<K> headSet(@ParametricNullness K toElement) {
+    public @PolyMutable SortedSet<K> headSet(@PolyMutable NavigableKeySet<K, V> this, @ParametricNullness K toElement) {
       return headSet(toElement, false);
     }
 
     @Override
-    public NavigableSet<K> tailSet(@ParametricNullness K fromElement, boolean inclusive) {
+    public @PolyMutable NavigableSet<K> tailSet(@PolyMutable NavigableKeySet<K, V> this, @ParametricNullness K fromElement, boolean inclusive) {
       return map().tailMap(fromElement, inclusive).navigableKeySet();
     }
 
     @Override
-    public SortedSet<K> tailSet(@ParametricNullness K fromElement) {
+    public @PolyMutable SortedSet<K> tailSet(@PolyMutable NavigableKeySet<K, V> this, @ParametricNullness K fromElement) {
       return tailSet(fromElement, true);
     }
   }
 
-  static class Values<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class Values<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractCollection<V> {
     @Weak final Map<K, V> map;
 
-    Values(Map<K, V> map) {
+    Values(@ReceiverDependentMutable Map<K, V> map) {
       this.map = checkNotNull(map);
     }
 
-    final Map<K, V> map() {
+    final @PolyMutable Map<K, V> map(@PolyMutable Values<K, V> this) {
       return map;
     }
 
     @Override
-    public Iterator<V> iterator() {
+    public Iterator<V> iterator(@PolyMutable Values<K, V> this) {
       return valueIterator(map().entrySet().iterator());
     }
 
     @Override
-    public void forEach(Consumer<? super V> action) {
+    public void forEach(@Readonly Values<K, V> this, Consumer<? super V> action) {
       checkNotNull(action);
       // avoids allocation of entries for those maps that generate fresh entries on iteration
       map.forEach((k, v) -> action.accept(v));
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable Values<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       try {
         return super.remove(o);
       } catch (UnsupportedOperationException e) {
@@ -4287,7 +4331,7 @@ public boolean remove(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public boolean removeAll(Collection<?> c) {
+    public boolean removeAll(@Mutable Values<K, V> this, @Readonly Collection<?> c) {
       try {
         return super.removeAll(checkNotNull(c));
       } catch (UnsupportedOperationException e) {
@@ -4302,7 +4346,7 @@ public boolean removeAll(Collection<?> c) {
     }
 
     @Override
-    public boolean retainAll(Collection<?> c) {
+    public boolean retainAll(@Mutable Values<K, V> this, @Readonly Collection<?> c) {
       try {
         return super.retainAll(checkNotNull(c));
       } catch (UnsupportedOperationException e) {
@@ -4317,42 +4361,43 @@ public boolean retainAll(Collection<?> c) {
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly Values<K, V> this) {
       return map().size();
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly Values<K, V> this) {
       return map().isEmpty();
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly Values<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       return map().containsValue(o);
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable Values<K, V> this) {
       map().clear();
     }
   }
 
-  abstract static class EntrySet<K extends @Nullable Object, V extends @Nullable Object>
-      extends Sets.ImprovedAbstractSet<Entry<K, V>> {
-    abstract Map<K, V> map();
+  @ReceiverDependentMutable
+  abstract static class EntrySet<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+      extends Sets.ImprovedAbstractSet<@ReceiverDependentMutable Entry<K, V>> {
+    abstract @PolyMutable Map<K, V> map(@PolyMutable EntrySet<K, V> this);
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly EntrySet<K, V> this) {
       return map().size();
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable EntrySet<K, V> this) {
       map().clear();
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly EntrySet<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (o instanceof Entry) {
         Entry<?, ?> entry = (Entry<?, ?>) o;
         Object key = entry.getKey();
@@ -4363,12 +4408,12 @@ public boolean contains(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly EntrySet<K, V> this) {
       return map().isEmpty();
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable EntrySet<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       /*
        * `o instanceof Entry` is guaranteed by `contains`, but we check it here to satisfy our
        * nullness checker.
@@ -4381,7 +4426,7 @@ public boolean remove(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public boolean removeAll(Collection<?> c) {
+    public boolean removeAll(@Mutable EntrySet<K, V> this, @Readonly Collection<?> c) {
       try {
         return super.removeAll(checkNotNull(c));
       } catch (UnsupportedOperationException e) {
@@ -4391,7 +4436,7 @@ public boolean removeAll(Collection<?> c) {
     }
 
     @Override
-    public boolean retainAll(Collection<?> c) {
+    public boolean retainAll(@Mutable EntrySet<K, V> this, @Readonly Collection<?> c) {
       try {
         return super.retainAll(checkNotNull(c));
       } catch (UnsupportedOperationException e) {
@@ -4413,17 +4458,18 @@ public boolean retainAll(Collection<?> c) {
   }
 
   @GwtIncompatible // NavigableMap
-  abstract static class DescendingMap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  abstract static class DescendingMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends ForwardingMap<K, V> implements NavigableMap<K, V> {
 
-    abstract NavigableMap<K, V> forward();
+    abstract @PolyMutable NavigableMap<K, V> forward(@PolyMutable DescendingMap<K, V> this);
 
     @Override
-    protected final Map<K, V> delegate() {
+    protected final @PolyMutable Map<K, V> delegate(@PolyMutable DescendingMap<K, V> this) {
       return forward();
     }
 
-    @CheckForNull private transient Comparator<? super K> comparator;
+    @CheckForNull private transient @Mutable Comparator<? super K> comparator;
 
     @SuppressWarnings("unchecked")
     @Override
@@ -4440,110 +4486,110 @@ public Comparator<? super K> comparator() {
     }
 
     // If we inline this, we get a javac error.
-    private static <T extends @Nullable Object> Ordering<T> reverse(Comparator<T> forward) {
+    private static <T extends @Nullable @Readonly Object> Ordering<T> reverse(Comparator<T> forward) {
       return Ordering.from(forward).reverse();
     }
 
     @Override
     @ParametricNullness
-    public @KeyFor("this") K firstKey() {
+    public @KeyFor("this") K firstKey(@Readonly DescendingMap<K, V> this) {
       return forward().lastKey();
     }
 
     @Override
     @ParametricNullness
-    public @KeyFor("this") K lastKey() {
+    public @KeyFor("this") K lastKey(@Readonly DescendingMap<K, V> this) {
       return forward().firstKey();
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> lowerEntry(@ParametricNullness K key) {
+    public @PolyMutable Entry<K, V> lowerEntry(@PolyMutable DescendingMap<K, V> this, @ParametricNullness K key) {
       return forward().higherEntry(key);
     }
 
     @Override
     @CheckForNull
-    public K lowerKey(@ParametricNullness K key) {
+    public K lowerKey(@Readonly DescendingMap<K, V> this, @ParametricNullness K key) {
       return forward().higherKey(key);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> floorEntry(@ParametricNullness K key) {
+    public @PolyMutable Entry<K, V> floorEntry(@PolyMutable DescendingMap<K, V> this, @ParametricNullness K key) {
       return forward().ceilingEntry(key);
     }
 
     @Override
     @CheckForNull
-    public K floorKey(@ParametricNullness K key) {
+    public K floorKey(@PolyMutable DescendingMap<K, V> this, @ParametricNullness K key) {
       return forward().ceilingKey(key);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> ceilingEntry(@ParametricNullness K key) {
+    public @PolyMutable Entry<K, V> ceilingEntry(@PolyMutable DescendingMap<K, V> this, @ParametricNullness K key) {
       return forward().floorEntry(key);
     }
 
     @Override
     @CheckForNull
-    public K ceilingKey(@ParametricNullness K key) {
+    public K ceilingKey(@Readonly DescendingMap<K, V> this, @ParametricNullness K key) {
       return forward().floorKey(key);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> higherEntry(@ParametricNullness K key) {
+    public @PolyMutable Entry<K, V> higherEntry(@PolyMutable DescendingMap<K, V> this, @ParametricNullness K key) {
       return forward().lowerEntry(key);
     }
 
     @Override
     @CheckForNull
-    public K higherKey(@ParametricNullness K key) {
+    public K higherKey(@Readonly DescendingMap<K, V> this, @ParametricNullness K key) {
       return forward().lowerKey(key);
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> firstEntry() {
+    public @PolyMutable Entry<K, V> firstEntry(@PolyMutable DescendingMap<K, V> this) {
       return forward().lastEntry();
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> lastEntry() {
+    public @PolyMutable Entry<K, V> lastEntry(@PolyMutable DescendingMap<K, V> this) {
       return forward().firstEntry();
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> pollFirstEntry() {
+    public Entry<K, V> pollFirstEntry(@Mutable DescendingMap<K, V> this) {
       return forward().pollLastEntry();
     }
 
     @Override
     @CheckForNull
-    public Entry<K, V> pollLastEntry() {
+    public Entry<K, V> pollLastEntry(@Mutable DescendingMap<K, V> this) {
       return forward().pollFirstEntry();
     }
 
     @Override
-    public NavigableMap<K, V> descendingMap() {
+    public @PolyMutable NavigableMap<K, V> descendingMap(@PolyMutable DescendingMap<K, V> this) {
       return forward();
     }
 
-    @CheckForNull private transient Set<Entry<K, V>> entrySet;
+    @CheckForNull private transient @Assignable Set<@ReceiverDependentMutable Entry<K, V>> entrySet;
 
     @Override
-    public Set<Entry<@KeyFor({"this"}) K, V>> entrySet() {
-      Set<Entry<K, V>> result = entrySet;
+    public @PolyMutable Set<@PolyMutable Entry<@KeyFor({"this"}) K, V>> entrySet(@PolyMutable DescendingMap<K, V> this) {
+      Set<@PolyMutable Entry<K, V>> result = entrySet;
       return (result == null) ? entrySet = createEntrySet() : result;
     }
 
-    abstract Iterator<Entry<K, V>> entryIterator();
+    abstract Iterator<@PolyMutable Entry<K, V>> entryIterator(@PolyMutable DescendingMap<K, V> this);
 
-    Set<Entry<K, V>> createEntrySet() {
+      @PolyMutable Set<@PolyMutable Entry<K, V>> createEntrySet(@PolyMutable DescendingMap<K, V> this) {
       @WeakOuter
       class EntrySetImpl extends EntrySet<K, V> {
         @Override
@@ -4560,25 +4606,26 @@ public Iterator<Entry<K, V>> iterator() {
     }
 
     @Override
-    public Set<@KeyFor({"this"}) K> keySet() {
+    public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable DescendingMap<K, V> this) {
       return navigableKeySet();
     }
 
-    @CheckForNull private transient NavigableSet<K> navigableKeySet;
+    @CheckForNull private transient @Assignable NavigableSet<K> navigableKeySet;
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> navigableKeySet() {
+    public @PolyMutable NavigableSet<@KeyFor({"this"}) K> navigableKeySet(@PolyMutable DescendingMap<K, V> this) {
       NavigableSet<K> result = navigableKeySet;
       return (result == null) ? navigableKeySet = new NavigableKeySet<>(this) : result;
     }
 
     @Override
-    public NavigableSet<@KeyFor({"this"}) K> descendingKeySet() {
+    public @PolyMutable NavigableSet<@KeyFor({"this"}) K> descendingKeySet(@PolyMutable DescendingMap<K, V> this) {
       return forward().navigableKeySet();
     }
 
     @Override
-    public NavigableMap<K, V> subMap(
+    public @PolyMutable NavigableMap<K, V> subMap(
+            @PolyMutable DescendingMap<K, V> this,
         @ParametricNullness K fromKey,
         boolean fromInclusive,
         @ParametricNullness K toKey,
@@ -4587,43 +4634,43 @@ public NavigableMap<K, V> subMap(
     }
 
     @Override
-    public SortedMap<K, V> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
+    public @PolyMutable SortedMap<K, V> subMap(@PolyMutable DescendingMap<K, V> this, @ParametricNullness K fromKey, @ParametricNullness K toKey) {
       return subMap(fromKey, true, toKey, false);
     }
 
     @Override
-    public NavigableMap<K, V> headMap(@ParametricNullness K toKey, boolean inclusive) {
+    public @PolyMutable NavigableMap<K, V> headMap(@PolyMutable DescendingMap<K, V> this, @ParametricNullness K toKey, boolean inclusive) {
       return forward().tailMap(toKey, inclusive).descendingMap();
     }
 
     @Override
-    public SortedMap<K, V> headMap(@ParametricNullness K toKey) {
+    public @PolyMutable SortedMap<K, V> headMap(@PolyMutable DescendingMap<K, V> this, @ParametricNullness K toKey) {
       return headMap(toKey, false);
     }
 
     @Override
-    public NavigableMap<K, V> tailMap(@ParametricNullness K fromKey, boolean inclusive) {
+    public @PolyMutable NavigableMap<K, V> tailMap(@PolyMutable DescendingMap<K, V> this, @ParametricNullness K fromKey, boolean inclusive) {
       return forward().headMap(fromKey, inclusive).descendingMap();
     }
 
     @Override
-    public SortedMap<K, V> tailMap(@ParametricNullness K fromKey) {
+    public @PolyMutable SortedMap<K, V> tailMap(@PolyMutable DescendingMap<K, V> this, @ParametricNullness K fromKey) {
       return tailMap(fromKey, true);
     }
 
     @Override
-    public Collection<V> values() {
-      return new Values<>(this);
+    public @PolyMutable Collection<V> values(@PolyMutable DescendingMap<K, V> this) {
+      return new @PolyMutable Values<>(this);
     }
 
     @Override
-    public String toString() {
+    public String toString(@Readonly DescendingMap<K, V> this) {
       return standardToString();
     }
   }
 
   /** Returns a map from the ith element of list to i. */
-  static <E> ImmutableMap<E, Integer> indexMap(Collection<E> list) {
+  static <E extends @Immutable Object> ImmutableMap<E, Integer> indexMap(@Readonly Collection<E> list) {
     ImmutableMap.Builder<E, Integer> builder = new ImmutableMap.Builder<>(list.size());
     int i = 0;
     for (E e : list) {
@@ -4650,8 +4697,8 @@ static <E> ImmutableMap<E, Integer> indexMap(Collection<E> list) {
    */
   @Beta
   @GwtIncompatible // NavigableMap
-  public static <K extends Comparable<? super K>, V extends @Nullable Object>
-      NavigableMap<K, V> subMap(NavigableMap<K, V> map, Range<K> range) {
+  public static <K extends @Immutable Comparable<? super K>, V extends @Nullable @Readonly Object>
+    @PolyMutable NavigableMap<K, V> subMap(@PolyMutable NavigableMap<K, V> map, Range<K> range) {
     if (map.comparator() != null
         && map.comparator() != Ordering.natural()
         && range.hasLowerBound()
diff --git a/guava/src/com/google/common/collect/MinMaxPriorityQueue.java b/guava/src/com/google/common/collect/MinMaxPriorityQueue.java
index 61a5336714d8..594000d784f0 100644
--- a/guava/src/com/google/common/collect/MinMaxPriorityQueue.java
+++ b/guava/src/com/google/common/collect/MinMaxPriorityQueue.java
@@ -46,6 +46,7 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Mutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 
 /**
diff --git a/guava/src/com/google/common/collect/MoreCollectors.java b/guava/src/com/google/common/collect/MoreCollectors.java
index 5a84a4628e3b..d71c7d9f315f 100644
--- a/guava/src/com/google/common/collect/MoreCollectors.java
+++ b/guava/src/com/google/common/collect/MoreCollectors.java
@@ -26,6 +26,9 @@
 import java.util.Optional;
 import java.util.stream.Collector;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Collectors not present in {@code java.util.stream.Collectors} that are not otherwise associated
@@ -34,6 +37,7 @@
  * @author Louis Wasserman
  * @since 21.0
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
 public final class MoreCollectors {
@@ -42,7 +46,7 @@ public final class MoreCollectors {
    * TODO(lowasser): figure out if we can convert this to a concurrent AtomicReference-based
    * collector without breaking j2cl?
    */
-  private static final Collector<Object, ?, Optional<Object>> TO_OPTIONAL =
+  private static final Collector<@Readonly Object, ?, Optional<@Readonly Object>> TO_OPTIONAL =
       Collector.of(
           ToOptionalState::new,
           ToOptionalState::add,
@@ -65,8 +69,8 @@ public final class MoreCollectors {
 
   private static final Object NULL_PLACEHOLDER = new Object();
 
-  private static final Collector<@Nullable Object, ?, @Nullable Object> ONLY_ELEMENT =
-      Collector.<@Nullable Object, ToOptionalState, @Nullable Object>of(
+  private static final Collector<@Nullable @Readonly Object, ?, @Nullable @Readonly Object> ONLY_ELEMENT =
+      Collector.<@Nullable @Readonly Object, ToOptionalState, @Nullable @Readonly Object>of(
           ToOptionalState::new,
           (state, o) -> state.add((o == null) ? NULL_PLACEHOLDER : o),
           ToOptionalState::combine,
@@ -82,7 +86,7 @@ public final class MoreCollectors {
    * more elements, and a {@code NoSuchElementException} if the stream is empty.
    */
   @SuppressWarnings("unchecked")
-  public static <T extends @Nullable Object> Collector<T, ?, T> onlyElement() {
+  public static <T extends @Nullable @Readonly Object> Collector<T, ?, T> onlyElement() {
     return (Collector) ONLY_ELEMENT;
   }
 
@@ -94,13 +98,14 @@ private static final class ToOptionalState {
     static final int MAX_EXTRAS = 4;
 
     @Nullable Object element;
-    List<Object> extras;
+    @Immutable List<Object> extras;
 
     ToOptionalState() {
       element = null;
       extras = emptyList();
     }
 
+    @SuppressWarnings("pico") // Replaced as mutable list
     IllegalArgumentException multiples(boolean overflow) {
       StringBuilder sb =
           new StringBuilder().append("expected one element but was: <").append(element);
@@ -114,6 +119,7 @@ IllegalArgumentException multiples(boolean overflow) {
       throw new IllegalArgumentException(sb.toString());
     }
 
+    @SuppressWarnings("pico") // Replaced as mutable list
     void add(Object o) {
       checkNotNull(o);
       if (element == null) {
@@ -129,6 +135,7 @@ void add(Object o) {
       }
     }
 
+    @SuppressWarnings("pico") // Replaced as mutable list
     ToOptionalState combine(ToOptionalState other) {
       if (element == null) {
         return other;
diff --git a/guava/src/com/google/common/collect/Multimap.java b/guava/src/com/google/common/collect/Multimap.java
index 07d9364a1dc2..fdecbf8a778a 100644
--- a/guava/src/com/google/common/collect/Multimap.java
+++ b/guava/src/com/google/common/collect/Multimap.java
@@ -30,6 +30,11 @@
 import java.util.function.BiConsumer;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -164,9 +169,10 @@
  */
 @DoNotMock("Use ImmutableMultimap, HashMultimap, or another implementation")
 @GwtCompatible
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @ElementTypesAreNonnullByDefault
-public interface Multimap<K extends @Nullable Object, V extends @Nullable Object> {
+@ReceiverDependentMutable
+public interface Multimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> {
   // Query Operations
 
   /**
@@ -176,37 +182,37 @@ public interface Multimap<K extends @Nullable Object, V extends @Nullable Object
    * which is given by {@code keySet().size()} or {@code asMap().size()}. See the opening section of
    * the {@link Multimap} class documentation for clarification.
    */
-  int size();
+  int size(@Readonly Multimap<K, V> this);
 
   /**
    * Returns {@code true} if this multimap contains no key-value pairs. Equivalent to {@code size()
    * == 0}, but can in some cases be more efficient.
    */
   @Pure
-  boolean isEmpty();
+  boolean isEmpty(@Readonly Multimap<K, V> this);
 
   /**
    * Returns {@code true} if this multimap contains at least one key-value pair with the key {@code
    * key}.
    */
   @Pure
-  boolean containsKey(@CompatibleWith("K") @CheckForNull @UnknownSignedness Object key);
+  boolean containsKey(@Readonly Multimap<K, V> this, @CompatibleWith("K") @CheckForNull @UnknownSignedness @Readonly Object key);
 
   /**
    * Returns {@code true} if this multimap contains at least one key-value pair with the value
    * {@code value}.
    */
   @Pure
-  boolean containsValue(@CompatibleWith("V") @CheckForNull @UnknownSignedness Object value);
+  boolean containsValue(@Readonly Multimap<K, V> this, @CompatibleWith("V") @CheckForNull @UnknownSignedness @Readonly Object value);
 
   /**
    * Returns {@code true} if this multimap contains at least one key-value pair with the key {@code
    * key} and the value {@code value}.
    */
   @Pure
-  boolean containsEntry(
-      @CompatibleWith("K") @CheckForNull Object key,
-      @CompatibleWith("V") @CheckForNull Object value);
+  boolean containsEntry(@Readonly Multimap<K, V> this,
+      @CompatibleWith("K") @CheckForNull @Readonly Object key,
+      @CompatibleWith("V") @CheckForNull @Readonly Object value);
 
   // Modification Operations
 
@@ -221,7 +227,7 @@ boolean containsEntry(
    *     multimap already contained the key-value pair and doesn't allow duplicates
    */
   @CanIgnoreReturnValue
-  boolean put(@ParametricNullness K key, @ParametricNullness V value);
+  boolean put(@Mutable Multimap<K, V> this, @ParametricNullness K key, @ParametricNullness V value);
 
   /**
    * Removes a single key-value pair with the key {@code key} and the value {@code value} from this
@@ -232,8 +238,9 @@ boolean containsEntry(
    */
   @CanIgnoreReturnValue
   boolean remove(
-      @CompatibleWith("K") @CheckForNull Object key,
-      @CompatibleWith("V") @CheckForNull Object value);
+          @Mutable Multimap<K, V> this,
+      @CompatibleWith("K") @CheckForNull @Readonly Object key,
+      @CompatibleWith("V") @CheckForNull @Readonly Object value);
 
   // Bulk Operations
 
@@ -252,7 +259,7 @@ boolean remove(
    * @return {@code true} if the multimap changed
    */
   @CanIgnoreReturnValue
-  boolean putAll(@ParametricNullness K key, Iterable<? extends V> values);
+  boolean putAll(@Mutable Multimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values);
 
   /**
    * Stores all key-value pairs of {@code multimap} in this multimap, in the order returned by
@@ -261,7 +268,7 @@ boolean remove(
    * @return {@code true} if the multimap changed
    */
   @CanIgnoreReturnValue
-  boolean putAll(Multimap<? extends K, ? extends V> multimap);
+  boolean putAll(@Mutable Multimap<K, V> this, @Readonly Multimap<? extends K, ? extends V> multimap);
 
   /**
    * Stores a collection of values with the same key, replacing any existing values for that key.
@@ -273,7 +280,7 @@ boolean remove(
    *     no effect on the multimap.
    */
   @CanIgnoreReturnValue
-  Collection<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values);
+  Collection<V> replaceValues(@Mutable Multimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values);
 
   /**
    * Removes all values associated with the key {@code key}.
@@ -285,10 +292,10 @@ boolean remove(
    *     modifiable, but updating it will have no effect on the multimap.
    */
   @CanIgnoreReturnValue
-  Collection<V> removeAll(@CompatibleWith("K") @CheckForNull Object key);
+  Collection<V> removeAll(@Mutable Multimap<K, V> this, @CompatibleWith("K") @CheckForNull @Readonly Object key);
 
   /** Removes all key-value pairs from the multimap, leaving it {@linkplain #isEmpty empty}. */
-  void clear();
+  void clear(@Mutable Multimap<K, V> this);
 
   // Views
 
@@ -299,7 +306,7 @@ boolean remove(
    *
    * <p>Changes to the returned collection will update the underlying multimap, and vice versa.
    */
-  Collection<V> get(@ParametricNullness K key);
+  @PolyMutable Collection<V> get(@PolyMutable Multimap<K, V> this, @ParametricNullness K key);
 
   /**
    * Returns a view collection of all <i>distinct</i> keys contained in this multimap. Note that the
@@ -308,7 +315,7 @@ boolean remove(
    * <p>Changes to the returned set will update the underlying multimap, and vice versa. However,
    * <i>adding</i> to the returned set is not possible.
    */
-  Set<K> keySet();
+  @PolyMutable Set<K> keySet(@PolyMutable Multimap<K,V> this);
 
   /**
    * Returns a view collection containing the key from each key-value pair in this multimap,
@@ -318,7 +325,7 @@ boolean remove(
    * <p>Changes to the returned multiset will update the underlying multimap, and vice versa.
    * However, <i>adding</i> to the returned collection is not possible.
    */
-  Multiset<K> keys();
+  @PolyMutable Multiset<K> keys(@PolyMutable Multimap<K,V> this);
 
   /**
    * Returns a view collection containing the <i>value</i> from each key-value pair contained in
@@ -327,7 +334,7 @@ boolean remove(
    * <p>Changes to the returned collection will update the underlying multimap, and vice versa.
    * However, <i>adding</i> to the returned collection is not possible.
    */
-  Collection<V> values();
+  @PolyMutable Collection<V> values(@PolyMutable Multimap<K,V> this);
 
   /**
    * Returns a view collection of all key-value pairs contained in this multimap, as {@link Entry}
@@ -336,7 +343,7 @@ boolean remove(
    * <p>Changes to the returned collection or the entries it contains will update the underlying
    * multimap, and vice versa. However, <i>adding</i> to the returned collection is not possible.
    */
-  Collection<Entry<K, V>> entries();
+  @PolyMutable Collection<@PolyMutable Entry<K, V>> entries(@PolyMutable Multimap<K,V> this);
 
   /**
    * Performs the given action for all key-value pairs contained in this multimap. If an ordering is
@@ -363,7 +370,7 @@ default void forEach(BiConsumer<? super K, ? super V> action) {
    * underlying multimap, and vice versa. The map does not support {@code put} or {@code putAll},
    * nor do its entries support {@link Entry#setValue setValue}.
    */
-  Map<K, Collection<V>> asMap();
+  @PolyMutable Map<K, @PolyMutable Collection<V>> asMap(@PolyMutable Multimap<K,V> this);
 
   // Comparison and hashing
 
@@ -382,7 +389,7 @@ default void forEach(BiConsumer<? super K, ? super V> action) {
    */
   @Pure
   @Override
-  boolean equals(@CheckForNull Object obj);
+  boolean equals(@Readonly Multimap<K, V> this, @CheckForNull @Readonly Object obj);
 
   /**
    * Returns the hash code for this multimap.
@@ -397,5 +404,5 @@ default void forEach(BiConsumer<? super K, ? super V> action) {
    */
   @Pure
   @Override
-  int hashCode(@UnknownSignedness Multimap<K, V> this);
+  int hashCode(@UnknownSignedness @Readonly Multimap<K, V> this);
 }
diff --git a/guava/src/com/google/common/collect/MultimapBuilder.java b/guava/src/com/google/common/collect/MultimapBuilder.java
index 3d6278aaec9d..9ea6a2f72661 100644
--- a/guava/src/com/google/common/collect/MultimapBuilder.java
+++ b/guava/src/com/google/common/collect/MultimapBuilder.java
@@ -35,6 +35,8 @@
 import java.util.TreeMap;
 import java.util.TreeSet;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * A builder for a multimap implementation that allows customization of the backing map and value
@@ -63,7 +65,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class MultimapBuilder<K0 extends @Nullable Object, V0 extends @Nullable Object> {
+public abstract class MultimapBuilder<K0 extends @Nullable @Immutable Object, V0 extends @Nullable @Readonly Object> {
   /*
    * Leaving K and V as upper bounds rather than the actual key and value types allows type
    * parameters to be left implicit more often. CacheBuilder uses the same technique.
@@ -74,7 +76,7 @@ private MultimapBuilder() {}
   private static final int DEFAULT_EXPECTED_KEYS = 8;
 
   /** Uses a hash table to map keys to value collections. */
-  public static MultimapBuilderWithKeys<@Nullable Object> hashKeys() {
+  public static MultimapBuilderWithKeys<@Nullable @Immutable Object> hashKeys() {
     return hashKeys(DEFAULT_EXPECTED_KEYS);
   }
 
@@ -84,11 +86,11 @@ private MultimapBuilder() {}
    *
    * @throws IllegalArgumentException if {@code expectedKeys < 0}
    */
-  public static MultimapBuilderWithKeys<@Nullable Object> hashKeys(int expectedKeys) {
+  public static MultimapBuilderWithKeys<@Nullable @Immutable Object> hashKeys(int expectedKeys) {
     checkNonnegative(expectedKeys, "expectedKeys");
-    return new MultimapBuilderWithKeys<@Nullable Object>() {
+    return new MultimapBuilderWithKeys<@Nullable @Immutable Object>() {
       @Override
-      <K extends @Nullable Object, V extends @Nullable Object> Map<K, Collection<V>> createMap() {
+      <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Map<K, Collection<V>> createMap() {
         return Platform.newHashMapWithExpectedSize(expectedKeys);
       }
     };
@@ -102,7 +104,7 @@ private MultimapBuilder() {}
    * multimap, save that if all values associated with a key are removed and then the key is added
    * back into the multimap, that key will come last in the key iteration order.
    */
-  public static MultimapBuilderWithKeys<@Nullable Object> linkedHashKeys() {
+  public static MultimapBuilderWithKeys<@Nullable @Immutable Object> linkedHashKeys() {
     return linkedHashKeys(DEFAULT_EXPECTED_KEYS);
   }
 
@@ -115,11 +117,11 @@ private MultimapBuilder() {}
    * multimap, save that if all values associated with a key are removed and then the key is added
    * back into the multimap, that key will come last in the key iteration order.
    */
-  public static MultimapBuilderWithKeys<@Nullable Object> linkedHashKeys(int expectedKeys) {
+  public static MultimapBuilderWithKeys<@Nullable @Immutable Object> linkedHashKeys(int expectedKeys) {
     checkNonnegative(expectedKeys, "expectedKeys");
-    return new MultimapBuilderWithKeys<@Nullable Object>() {
+    return new MultimapBuilderWithKeys<@Nullable @Immutable Object>() {
       @Override
-      <K extends @Nullable Object, V extends @Nullable Object> Map<K, Collection<V>> createMap() {
+      <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Map<K, Collection<V>> createMap() {
         return Platform.newLinkedHashMapWithExpectedSize(expectedKeys);
       }
     };
@@ -153,12 +155,12 @@ public static MultimapBuilderWithKeys<Comparable> treeKeys() {
    * <p>Multimaps generated by the resulting builder will not be serializable if {@code comparator}
    * is not serializable.
    */
-  public static <K0 extends @Nullable Object> MultimapBuilderWithKeys<K0> treeKeys(
+  public static <K0 extends @Nullable @Immutable Object> MultimapBuilderWithKeys<K0> treeKeys(
       Comparator<K0> comparator) {
     checkNotNull(comparator);
     return new MultimapBuilderWithKeys<K0>() {
       @Override
-      <K extends K0, V extends @Nullable Object> Map<K, Collection<V>> createMap() {
+      <K extends K0, V extends @Nullable @Readonly Object> Map<K, Collection<V>> createMap() {
         return new TreeMap<>(comparator);
       }
     };
@@ -174,7 +176,7 @@ public static <K0 extends Enum<K0>> MultimapBuilderWithKeys<K0> enumKeys(Class<K
     return new MultimapBuilderWithKeys<K0>() {
       @SuppressWarnings("unchecked")
       @Override
-      <K extends K0, V extends @Nullable Object> Map<K, Collection<V>> createMap() {
+      <K extends K0, V extends @Nullable @Readonly Object> Map<K, Collection<V>> createMap() {
         // K must actually be K0, since enums are effectively final
         // (their subclasses are inaccessible)
         return (Map<K, Collection<V>>) new EnumMap<K0, Collection<V>>(keyClass);
@@ -182,7 +184,7 @@ public static <K0 extends Enum<K0>> MultimapBuilderWithKeys<K0> enumKeys(Class<K
     };
   }
 
-  private static final class ArrayListSupplier<V extends @Nullable Object>
+  private static final class ArrayListSupplier<V extends @Nullable @Readonly Object>
       implements Supplier<List<V>>, Serializable {
     private final int expectedValuesPerKey;
 
@@ -199,7 +201,7 @@ public List<V> get() {
   private enum LinkedListSupplier implements Supplier<List<?>> {
     INSTANCE;
 
-    public static <V extends @Nullable Object> Supplier<List<V>> instance() {
+    public static <V extends @Nullable @Readonly Object> Supplier<List<V>> instance() {
       // Each call generates a fresh LinkedList, which can serve as a List<V> for any V.
       @SuppressWarnings({"rawtypes", "unchecked"})
       Supplier<List<V>> result = (Supplier) INSTANCE;
@@ -212,7 +214,7 @@ public List<?> get() {
     }
   }
 
-  private static final class HashSetSupplier<V extends @Nullable Object>
+  private static final class HashSetSupplier<V extends @Nullable @Readonly Object>
       implements Supplier<Set<V>>, Serializable {
     private final int expectedValuesPerKey;
 
@@ -226,7 +228,7 @@ public Set<V> get() {
     }
   }
 
-  private static final class LinkedHashSetSupplier<V extends @Nullable Object>
+  private static final class LinkedHashSetSupplier<V extends @Nullable @Readonly Object>
       implements Supplier<Set<V>>, Serializable {
     private final int expectedValuesPerKey;
 
@@ -240,7 +242,7 @@ public Set<V> get() {
     }
   }
 
-  private static final class TreeSetSupplier<V extends @Nullable Object>
+  private static final class TreeSetSupplier<V extends @Nullable @Readonly Object>
       implements Supplier<SortedSet<V>>, Serializable {
     private final Comparator<? super V> comparator;
 
@@ -275,13 +277,13 @@ public Set<V> get() {
    * @param <K0> The upper bound on the key type of the generated multimap.
    * @since 16.0
    */
-  public abstract static class MultimapBuilderWithKeys<K0 extends @Nullable Object> {
+  public abstract static class MultimapBuilderWithKeys<K0 extends @Nullable @Immutable Object> {
 
     private static final int DEFAULT_EXPECTED_VALUES_PER_KEY = 2;
 
     MultimapBuilderWithKeys() {}
 
-    abstract <K extends K0, V extends @Nullable Object> Map<K, Collection<V>> createMap();
+    abstract <K extends K0, V extends @Nullable @Readonly Object> Map<K, Collection<V>> createMap();
 
     /** Uses an {@link ArrayList} to store value collections. */
     public ListMultimapBuilder<K0, @Nullable Object> arrayListValues() {
@@ -298,7 +300,7 @@ public abstract static class MultimapBuilderWithKeys<K0 extends @Nullable Object
       checkNonnegative(expectedValuesPerKey, "expectedValuesPerKey");
       return new ListMultimapBuilder<K0, @Nullable Object>() {
         @Override
-        public <K extends K0, V extends @Nullable Object> ListMultimap<K, V> build() {
+        public <K extends K0, V extends @Nullable @Readonly Object> ListMultimap<K, V> build() {
           return Multimaps.newListMultimap(
               MultimapBuilderWithKeys.this.<K, V>createMap(),
               new ArrayListSupplier<V>(expectedValuesPerKey));
@@ -310,7 +312,7 @@ public abstract static class MultimapBuilderWithKeys<K0 extends @Nullable Object
     public ListMultimapBuilder<K0, @Nullable Object> linkedListValues() {
       return new ListMultimapBuilder<K0, @Nullable Object>() {
         @Override
-        public <K extends K0, V extends @Nullable Object> ListMultimap<K, V> build() {
+        public <K extends K0, V extends @Nullable @Readonly Object> ListMultimap<K, V> build() {
           return Multimaps.newListMultimap(
               MultimapBuilderWithKeys.this.<K, V>createMap(), LinkedListSupplier.<V>instance());
         }
@@ -332,7 +334,7 @@ public abstract static class MultimapBuilderWithKeys<K0 extends @Nullable Object
       checkNonnegative(expectedValuesPerKey, "expectedValuesPerKey");
       return new SetMultimapBuilder<K0, @Nullable Object>() {
         @Override
-        public <K extends K0, V extends @Nullable Object> SetMultimap<K, V> build() {
+        public <K extends K0, V extends @Nullable @Readonly Object> SetMultimap<K, V> build() {
           return Multimaps.newSetMultimap(
               MultimapBuilderWithKeys.this.<K, V>createMap(),
               new HashSetSupplier<V>(expectedValuesPerKey));
@@ -355,7 +357,7 @@ public abstract static class MultimapBuilderWithKeys<K0 extends @Nullable Object
       checkNonnegative(expectedValuesPerKey, "expectedValuesPerKey");
       return new SetMultimapBuilder<K0, @Nullable Object>() {
         @Override
-        public <K extends K0, V extends @Nullable Object> SetMultimap<K, V> build() {
+        public <K extends K0, V extends @Nullable @Readonly Object> SetMultimap<K, V> build() {
           return Multimaps.newSetMultimap(
               MultimapBuilderWithKeys.this.<K, V>createMap(),
               new LinkedHashSetSupplier<V>(expectedValuesPerKey));
@@ -380,7 +382,7 @@ public SortedSetMultimapBuilder<K0, Comparable> treeSetValues() {
       checkNotNull(comparator, "comparator");
       return new SortedSetMultimapBuilder<K0, V0>() {
         @Override
-        public <K extends K0, V extends V0> SortedSetMultimap<K, V> build() {
+        public <K extends K0, V extends @Readonly V0> SortedSetMultimap<K, V> build() {
           return Multimaps.newSortedSetMultimap(
               MultimapBuilderWithKeys.this.<K, V>createMap(), new TreeSetSupplier<V>(comparator));
         }
@@ -392,7 +394,7 @@ public <V0 extends Enum<V0>> SetMultimapBuilder<K0, V0> enumSetValues(Class<V0>
       checkNotNull(valueClass, "valueClass");
       return new SetMultimapBuilder<K0, V0>() {
         @Override
-        public <K extends K0, V extends V0> SetMultimap<K, V> build() {
+        public <K extends K0, V extends @Readonly V0> SetMultimap<K, V> build() {
           // V must actually be V0, since enums are effectively final
           // (their subclasses are inaccessible)
           @SuppressWarnings({"unchecked", "rawtypes"})
@@ -423,7 +425,7 @@ public <K extends K0, V extends V0> Multimap<K, V> build(
    * @since 16.0
    */
   public abstract static class ListMultimapBuilder<
-          K0 extends @Nullable Object, V0 extends @Nullable Object>
+          K0 extends @Nullable @Immutable Object, V0 extends @Nullable Object>
       extends MultimapBuilder<K0, V0> {
     ListMultimapBuilder() {}
 
@@ -443,7 +445,7 @@ public <K extends K0, V extends V0> ListMultimap<K, V> build(
    * @since 16.0
    */
   public abstract static class SetMultimapBuilder<
-          K0 extends @Nullable Object, V0 extends @Nullable Object>
+          K0 extends @Nullable @Immutable Object, V0 extends @Nullable Object>
       extends MultimapBuilder<K0, V0> {
     SetMultimapBuilder() {}
 
@@ -463,7 +465,7 @@ public <K extends K0, V extends V0> SetMultimap<K, V> build(
    * @since 16.0
    */
   public abstract static class SortedSetMultimapBuilder<
-          K0 extends @Nullable Object, V0 extends @Nullable Object>
+          K0 extends @Nullable @Immutable Object, V0 extends @Nullable Object>
       extends SetMultimapBuilder<K0, V0> {
     SortedSetMultimapBuilder() {}
 
diff --git a/guava/src/com/google/common/collect/Multimaps.java b/guava/src/com/google/common/collect/Multimaps.java
index 9a7fec20152f..2d6b35420415 100644
--- a/guava/src/com/google/common/collect/Multimaps.java
+++ b/guava/src/com/google/common/collect/Multimaps.java
@@ -60,10 +60,17 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * Provides static methods acting on or generating a {@code Multimap}.
@@ -121,9 +128,9 @@ private Multimaps() {}
    * @since 21.0
    */
   public static <
-          T extends @Nullable Object,
-          K extends @Nullable Object,
-          V extends @Nullable Object,
+          T extends @Nullable @Readonly Object,
+          K extends @Nullable @Immutable Object,
+          V extends @Nullable @Readonly Object,
           M extends Multimap<K, V>>
       Collector<T, ?, M> toMultimap(
           java.util.function.Function<? super T, ? extends K> keyFunction,
@@ -167,9 +174,9 @@ private Multimaps() {}
    */
   @Beta
   public static <
-          T extends @Nullable Object,
-          K extends @Nullable Object,
-          V extends @Nullable Object,
+          T extends @Nullable @Readonly Object,
+          K extends @Nullable @Immutable Object,
+          V extends @Nullable @Readonly Object,
           M extends Multimap<K, V>>
       Collector<T, ?, M> flatteningToMultimap(
           java.util.function.Function<? super T, ? extends K> keyFunction,
@@ -214,38 +221,39 @@ private Multimaps() {}
    *     key
    * @throws IllegalArgumentException if {@code map} is not empty
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> Multimap<K, V> newMultimap(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Multimap<K, V> newMultimap(
       Map<K, Collection<V>> map, final Supplier<? extends Collection<V>> factory) {
     return new CustomMultimap<>(map, factory);
   }
 
-  private static class CustomMultimap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class CustomMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractMapBasedMultimap<K, V> {
-    transient Supplier<? extends Collection<V>> factory;
+    transient Supplier<? extends @ReceiverDependentMutable Collection<V>> factory;
 
-    CustomMultimap(Map<K, Collection<V>> map, Supplier<? extends Collection<V>> factory) {
+    CustomMultimap(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map, Supplier<? extends @ReceiverDependentMutable Collection<V>> factory) {
       super(map);
       this.factory = checkNotNull(factory);
     }
 
     @Override
-    Set<K> createKeySet() {
+    @PolyMutable Set<K> createKeySet(@PolyMutable CustomMultimap<K, V> this) {
       return createMaybeNavigableKeySet();
     }
 
     @Override
-    Map<K, Collection<V>> createAsMap() {
+    @PolyMutable Map<K, @PolyMutable Collection<V>> createAsMap(@PolyMutable CustomMultimap<K, V> this) {
       return createMaybeNavigableAsMap();
     }
 
     @Override
-    protected Collection<V> createCollection() {
+    protected @PolyMutable Collection<V> createCollection(@PolyMutable CustomMultimap<K, V> this) {
       return factory.get();
     }
 
     @Override
-    <E extends @Nullable Object> Collection<E> unmodifiableCollectionSubclass(
-        Collection<E> collection) {
+    <E extends @Nullable @Readonly Object> @Readonly Collection<E> unmodifiableCollectionSubclass(
+            @Readonly Collection<E> collection) {
       if (collection instanceof NavigableSet) {
         return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
       } else if (collection instanceof SortedSet) {
@@ -328,33 +336,34 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
    * @param factory supplier of new, empty lists that will each hold all values for a given key
    * @throws IllegalArgumentException if {@code map} is not empty
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       ListMultimap<K, V> newListMultimap(
           Map<K, Collection<V>> map, final Supplier<? extends List<V>> factory) {
     return new CustomListMultimap<>(map, factory);
   }
 
-  private static class CustomListMultimap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class CustomListMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractListMultimap<K, V> {
-    transient Supplier<? extends List<V>> factory;
+    transient Supplier<? extends @ReceiverDependentMutable List<V>> factory;
 
-    CustomListMultimap(Map<K, Collection<V>> map, Supplier<? extends List<V>> factory) {
+    CustomListMultimap(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map, Supplier<? extends @ReceiverDependentMutable List<V>> factory) {
       super(map);
       this.factory = checkNotNull(factory);
     }
 
     @Override
-    Set<K> createKeySet() {
+    @PolyMutable Set<K> createKeySet(@PolyMutable CustomListMultimap<K, V> this) {
       return createMaybeNavigableKeySet();
     }
 
     @Override
-    Map<K, Collection<V>> createAsMap() {
+    @PolyMutable Map<K, @PolyMutable Collection<V>> createAsMap(@PolyMutable CustomListMultimap<K, V> this) {
       return createMaybeNavigableAsMap();
     }
 
     @Override
-    protected List<V> createCollection() {
+    protected @ReceiverDependentMutable List<V> createCollection(@PolyMutable CustomListMultimap<K, V> this) {
       return factory.get();
     }
 
@@ -408,38 +417,39 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
    * @param factory supplier of new, empty sets that will each hold all values for a given key
    * @throws IllegalArgumentException if {@code map} is not empty
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SetMultimap<K, V> newSetMultimap(
           Map<K, Collection<V>> map, final Supplier<? extends Set<V>> factory) {
     return new CustomSetMultimap<>(map, factory);
   }
 
-  private static class CustomSetMultimap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class CustomSetMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractSetMultimap<K, V> {
-    transient Supplier<? extends Set<V>> factory;
+    transient Supplier<? extends @ReceiverDependentMutable Set<V>> factory;
 
-    CustomSetMultimap(Map<K, Collection<V>> map, Supplier<? extends Set<V>> factory) {
+    CustomSetMultimap(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map, Supplier<? extends @ReceiverDependentMutable Set<V>> factory) {
       super(map);
       this.factory = checkNotNull(factory);
     }
 
     @Override
-    Set<K> createKeySet() {
+    @PolyMutable Set<K> createKeySet(@PolyMutable CustomSetMultimap<K, V> this) {
       return createMaybeNavigableKeySet();
     }
 
     @Override
-    Map<K, Collection<V>> createAsMap() {
+    @PolyMutable Map<K, @PolyMutable Collection<V>> createAsMap(@PolyMutable CustomSetMultimap<K, V> this) {
       return createMaybeNavigableAsMap();
     }
 
     @Override
-    protected Set<V> createCollection() {
+    protected @PolyMutable Set<V> createCollection(@PolyMutable CustomSetMultimap<K, V> this) {
       return factory.get();
     }
 
     @Override
-    <E extends @Nullable Object> Collection<E> unmodifiableCollectionSubclass(
+    <E extends @Nullable @Readonly Object> @Readonly Collection<E> unmodifiableCollectionSubclass(
         Collection<E> collection) {
       if (collection instanceof NavigableSet) {
         return Sets.unmodifiableNavigableSet((NavigableSet<E>) collection);
@@ -451,13 +461,13 @@ protected Set<V> createCollection() {
     }
 
     @Override
-    Collection<V> wrapCollection(@ParametricNullness K key, Collection<V> collection) {
+    @PolyMutable Collection<V> wrapCollection(@ParametricNullness K key, @PolyMutable Collection<V> collection) {
       if (collection instanceof NavigableSet) {
-        return new WrappedNavigableSet(key, (NavigableSet<V>) collection, null);
+        return new @PolyMutable WrappedNavigableSet(key, (NavigableSet<V>) collection, null);
       } else if (collection instanceof SortedSet) {
-        return new WrappedSortedSet(key, (SortedSet<V>) collection, null);
+        return new @PolyMutable WrappedSortedSet(key, (SortedSet<V>) collection, null);
       } else {
-        return new WrappedSet(key, (Set<V>) collection);
+        return new @PolyMutable WrappedSet(key, (Set<V>) collection);
       }
     }
 
@@ -511,36 +521,37 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
    *     key
    * @throws IllegalArgumentException if {@code map} is not empty
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SortedSetMultimap<K, V> newSortedSetMultimap(
           Map<K, Collection<V>> map, final Supplier<? extends SortedSet<V>> factory) {
     return new CustomSortedSetMultimap<>(map, factory);
   }
 
+  @ReceiverDependentMutable
   private static class CustomSortedSetMultimap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractSortedSetMultimap<K, V> {
-    transient Supplier<? extends SortedSet<V>> factory;
-    @CheckForNull transient Comparator<? super V> valueComparator;
+    transient Supplier<? extends @ReceiverDependentMutable SortedSet<V>> factory;
+    @CheckForNull transient @Mutable Comparator<? super V> valueComparator;
 
-    CustomSortedSetMultimap(Map<K, Collection<V>> map, Supplier<? extends SortedSet<V>> factory) {
+    CustomSortedSetMultimap(@ReceiverDependentMutable Map<K, @ReceiverDependentMutable Collection<V>> map, Supplier<? extends @ReceiverDependentMutable SortedSet<V>> factory) {
       super(map);
       this.factory = checkNotNull(factory);
       valueComparator = factory.get().comparator();
     }
 
     @Override
-    Set<K> createKeySet() {
+    @PolyMutable Set<K> createKeySet(@PolyMutable CustomSortedSetMultimap<K, V> this) {
       return createMaybeNavigableKeySet();
     }
 
     @Override
-    Map<K, Collection<V>> createAsMap() {
+    @PolyMutable Map<K, @PolyMutable Collection<V>> createAsMap(@PolyMutable CustomSortedSetMultimap<K, V> this) {
       return createMaybeNavigableAsMap();
     }
 
     @Override
-    protected SortedSet<V> createCollection() {
+    protected @PolyMutable SortedSet<V> createCollection(@PolyMutable CustomSortedSetMultimap<K, V> this) {
       return factory.get();
     }
 
@@ -584,7 +595,7 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
    * @return {@code dest}
    */
   @CanIgnoreReturnValue
-  public static <K extends @Nullable Object, V extends @Nullable Object, M extends Multimap<K, V>>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object, M extends Multimap<K, V>>
       M invertFrom(Multimap<? extends V, ? extends K> source, M dest) {
     checkNotNull(dest);
     for (Map.Entry<? extends V, ? extends K> entry : source.entries()) {
@@ -625,7 +636,7 @@ M invertFrom(Multimap<? extends V, ? extends K> source, M dest) {
    * @param multimap the multimap to be wrapped in a synchronized view
    * @return a synchronized view of the specified multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Multimap<K, V> synchronizedMultimap(Multimap<K, V> multimap) {
     return Synchronized.multimap(multimap, null);
   }
@@ -641,8 +652,8 @@ Multimap<K, V> synchronizedMultimap(Multimap<K, V> multimap) {
    * @param delegate the multimap for which an unmodifiable view is to be returned
    * @return an unmodifiable view of the specified multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      Multimap<K, V> unmodifiableMultimap(Multimap<K, V> delegate) {
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+    @Readonly Multimap<K, V> unmodifiableMultimap(@Readonly Multimap<K, V> delegate) {
     if (delegate instanceof UnmodifiableMultimap || delegate instanceof ImmutableMultimap) {
       return delegate;
     }
@@ -656,25 +667,26 @@ Multimap<K, V> unmodifiableMultimap(Multimap<K, V> delegate) {
    * @since 10.0
    */
   @Deprecated
-  public static <K, V> Multimap<K, V> unmodifiableMultimap(ImmutableMultimap<K, V> delegate) {
+  public static <K extends @Immutable Object, V> @Readonly Multimap<K, V> unmodifiableMultimap(ImmutableMultimap<K, @Immutable V> delegate) {
     return checkNotNull(delegate);
   }
 
-  private static class UnmodifiableMultimap<K extends @Nullable Object, V extends @Nullable Object>
-      extends ForwardingMultimap<K, V> implements Serializable {
-    final Multimap<K, V> delegate;
-    @LazyInit @CheckForNull transient Collection<Entry<K, V>> entries;
-    @LazyInit @CheckForNull transient Multiset<K> keys;
-    @LazyInit @CheckForNull transient Set<K> keySet;
-    @LazyInit @CheckForNull transient Collection<V> values;
-    @LazyInit @CheckForNull transient Map<K, Collection<V>> map;
-
-    UnmodifiableMultimap(final Multimap<K, V> delegate) {
+  @Immutable
+  private static class UnmodifiableMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+      extends ForwardingMultimap<K, @Immutable V> implements Serializable {
+    final @Readonly Multimap<K, V> delegate;
+    @LazyInit @CheckForNull transient @Assignable @Readonly Collection<@Readonly Entry<K, V>> entries;
+    @LazyInit @CheckForNull transient @Assignable @Readonly Multiset<K> keys;
+    @LazyInit @CheckForNull transient @Assignable @Readonly Set<K> keySet;
+    @LazyInit @CheckForNull transient @Assignable @Readonly Collection<V> values;
+    @LazyInit @CheckForNull transient @Assignable @Readonly Map<K, @Readonly Collection<V>> map;
+
+    UnmodifiableMultimap(final @Readonly Multimap<K, V> delegate) {
       this.delegate = checkNotNull(delegate);
     }
 
     @Override
-    protected Multimap<K, V> delegate() {
+    protected @Readonly Multimap<K, V> delegate() {
       return delegate;
     }
 
@@ -684,8 +696,8 @@ public void clear() {
     }
 
     @Override
-    public Map<K, Collection<V>> asMap() {
-      Map<K, Collection<V>> result = map;
+    public @Readonly Map<K, @Readonly Collection<V>> asMap() {
+      Map<K, @Readonly Collection<V>> result = map;
       if (result == null) {
         result =
             map =
@@ -704,8 +716,8 @@ public Collection<V> apply(Collection<V> collection) {
 
     @SideEffectFree
     @Override
-    public Collection<Entry<K, V>> entries() {
-      Collection<Entry<K, V>> result = entries;
+    public @Readonly Collection<@Readonly Entry<K, V>> entries() {
+      Collection<@Readonly Entry<K, V>> result = entries;
       if (result == null) {
         entries = result = unmodifiableEntries(delegate.entries());
       }
@@ -718,12 +730,12 @@ public void forEach(BiConsumer<? super K, ? super V> consumer) {
     }
 
     @Override
-    public Collection<V> get(@ParametricNullness K key) {
+    public @Readonly Collection<V> get(@ParametricNullness K key) {
       return unmodifiableValueCollection(delegate.get(key));
     }
 
     @Override
-    public Multiset<K> keys() {
+    public @Readonly Multiset<K> keys() {
       Multiset<K> result = keys;
       if (result == null) {
         keys = result = Multisets.unmodifiableMultiset(delegate.keys());
@@ -733,7 +745,7 @@ public Multiset<K> keys() {
 
     @SideEffectFree
     @Override
-    public Set<K> keySet() {
+    public @Readonly Set<K> keySet() {
       Set<K> result = keySet;
       if (result == null) {
         keySet = result = Collections.unmodifiableSet(delegate.keySet());
@@ -757,23 +769,23 @@ public boolean putAll(Multimap<? extends K, ? extends V> multimap) {
     }
 
     @Override
-    public boolean remove(@CheckForNull Object key, @CheckForNull Object value) {
+    public boolean remove(@CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public Collection<V> removeAll(@CheckForNull Object key) {
+    public @Readonly Collection<V> removeAll(@CheckForNull @Readonly Object key) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public Collection<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+    public @Readonly Collection<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
       throw new UnsupportedOperationException();
     }
 
     @SideEffectFree
     @Override
-    public Collection<V> values() {
+    public @Readonly Collection<V> values() {
       Collection<V> result = values;
       if (result == null) {
         values = result = Collections.unmodifiableCollection(delegate.values());
@@ -784,50 +796,52 @@ public Collection<V> values() {
     private static final long serialVersionUID = 0;
   }
 
+  @Immutable
   private static class UnmodifiableListMultimap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends UnmodifiableMultimap<K, V> implements ListMultimap<K, V> {
-    UnmodifiableListMultimap(ListMultimap<K, V> delegate) {
+    UnmodifiableListMultimap(@Readonly ListMultimap<K, V> delegate) {
       super(delegate);
     }
 
     @Override
-    public ListMultimap<K, V> delegate() {
-      return (ListMultimap<K, V>) super.delegate();
+    public @Readonly ListMultimap<K, V> delegate() {
+      return (@Readonly ListMultimap<K, V>) super.delegate();
     }
 
     @Override
-    public List<V> get(@ParametricNullness K key) {
+    public @Readonly List<V> get(@ParametricNullness K key) {
       return Collections.unmodifiableList(delegate().get(key));
     }
 
     @Override
-    public List<V> removeAll(@CheckForNull Object key) {
+    public @Readonly List<V> removeAll(@CheckForNull @Readonly Object key) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public List<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+    public @Readonly List<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
       throw new UnsupportedOperationException();
     }
 
     private static final long serialVersionUID = 0;
   }
 
+  @Immutable
   private static class UnmodifiableSetMultimap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends UnmodifiableMultimap<K, V> implements SetMultimap<K, V> {
-    UnmodifiableSetMultimap(SetMultimap<K, V> delegate) {
+    UnmodifiableSetMultimap(@Readonly SetMultimap<K, V> delegate) {
       super(delegate);
     }
 
     @Override
-    public SetMultimap<K, V> delegate() {
-      return (SetMultimap<K, V>) super.delegate();
+    public @Readonly SetMultimap<K, V> delegate() {
+      return (@Readonly SetMultimap<K, V>) super.delegate();
     }
 
     @Override
-    public Set<V> get(@ParametricNullness K key) {
+    public @Readonly Set<V> get(@ParametricNullness K key) {
       /*
        * Note that this doesn't return a SortedSet when delegate is a
        * SortedSetMultiset, unlike (SortedSet<V>) super.get().
@@ -837,47 +851,48 @@ public Set<V> get(@ParametricNullness K key) {
 
     @SideEffectFree
     @Override
-    public Set<Map.Entry<K, V>> entries() {
+    public @Readonly Set<Map.@Readonly Entry<K, V>> entries() {
       return Maps.unmodifiableEntrySet(delegate().entries());
     }
 
     @Override
-    public Set<V> removeAll(@CheckForNull Object key) {
+    public @Readonly Set<V> removeAll(@CheckForNull @Readonly Object key) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+    public @Readonly Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
       throw new UnsupportedOperationException();
     }
 
     private static final long serialVersionUID = 0;
   }
 
+  @Immutable
   private static class UnmodifiableSortedSetMultimap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends UnmodifiableSetMultimap<K, V> implements SortedSetMultimap<K, V> {
-    UnmodifiableSortedSetMultimap(SortedSetMultimap<K, V> delegate) {
+    UnmodifiableSortedSetMultimap(@Readonly SortedSetMultimap<K, V> delegate) {
       super(delegate);
     }
 
     @Override
-    public SortedSetMultimap<K, V> delegate() {
-      return (SortedSetMultimap<K, V>) super.delegate();
+    public @Readonly SortedSetMultimap<K, V> delegate() {
+      return (@Readonly SortedSetMultimap<K, V>) super.delegate();
     }
 
     @Override
-    public SortedSet<V> get(@ParametricNullness K key) {
+    public @Readonly SortedSet<V> get(@ParametricNullness K key) {
       return Collections.unmodifiableSortedSet(delegate().get(key));
     }
 
     @Override
-    public SortedSet<V> removeAll(@CheckForNull Object key) {
+    public @Readonly SortedSet<V> removeAll(@CheckForNull @Readonly Object key) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public SortedSet<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+    public @Readonly SortedSet<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
       throw new UnsupportedOperationException();
     }
 
@@ -900,7 +915,7 @@ public Comparator<? super V> valueComparator() {
    * @param multimap the multimap to be wrapped
    * @return a synchronized view of the specified multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SetMultimap<K, V> synchronizedSetMultimap(SetMultimap<K, V> multimap) {
     return Synchronized.setMultimap(multimap, null);
   }
@@ -916,8 +931,8 @@ SetMultimap<K, V> synchronizedSetMultimap(SetMultimap<K, V> multimap) {
    * @param delegate the multimap for which an unmodifiable view is to be returned
    * @return an unmodifiable view of the specified multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      SetMultimap<K, V> unmodifiableSetMultimap(SetMultimap<K, V> delegate) {
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+    @Readonly SetMultimap<K, V> unmodifiableSetMultimap(@Readonly SetMultimap<K, V> delegate) {
     if (delegate instanceof UnmodifiableSetMultimap || delegate instanceof ImmutableSetMultimap) {
       return delegate;
     }
@@ -931,8 +946,8 @@ SetMultimap<K, V> unmodifiableSetMultimap(SetMultimap<K, V> delegate) {
    * @since 10.0
    */
   @Deprecated
-  public static <K, V> SetMultimap<K, V> unmodifiableSetMultimap(
-      ImmutableSetMultimap<K, V> delegate) {
+  public static <K extends @Immutable Object, V> @Readonly SetMultimap<K, V> unmodifiableSetMultimap(
+      ImmutableSetMultimap<K, @Immutable V> delegate) {
     return checkNotNull(delegate);
   }
 
@@ -947,7 +962,7 @@ public static <K, V> SetMultimap<K, V> unmodifiableSetMultimap(
    * @param multimap the multimap to be wrapped
    * @return a synchronized view of the specified multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SortedSetMultimap<K, V> synchronizedSortedSetMultimap(SortedSetMultimap<K, V> multimap) {
     return Synchronized.sortedSetMultimap(multimap, null);
   }
@@ -963,8 +978,8 @@ SortedSetMultimap<K, V> synchronizedSortedSetMultimap(SortedSetMultimap<K, V> mu
    * @param delegate the multimap for which an unmodifiable view is to be returned
    * @return an unmodifiable view of the specified multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      SortedSetMultimap<K, V> unmodifiableSortedSetMultimap(SortedSetMultimap<K, V> delegate) {
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+    @Readonly SortedSetMultimap<K, V> unmodifiableSortedSetMultimap(@Readonly SortedSetMultimap<K, V> delegate) {
     if (delegate instanceof UnmodifiableSortedSetMultimap) {
       return delegate;
     }
@@ -979,7 +994,7 @@ SortedSetMultimap<K, V> unmodifiableSortedSetMultimap(SortedSetMultimap<K, V> de
    * @param multimap the multimap to be wrapped
    * @return a synchronized view of the specified multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       ListMultimap<K, V> synchronizedListMultimap(ListMultimap<K, V> multimap) {
     return Synchronized.listMultimap(multimap, null);
   }
@@ -995,8 +1010,8 @@ ListMultimap<K, V> synchronizedListMultimap(ListMultimap<K, V> multimap) {
    * @param delegate the multimap for which an unmodifiable view is to be returned
    * @return an unmodifiable view of the specified multimap
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      ListMultimap<K, V> unmodifiableListMultimap(ListMultimap<K, V> delegate) {
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+    @Readonly ListMultimap<K, V> unmodifiableListMultimap(@Readonly ListMultimap<K, V> delegate) {
     if (delegate instanceof UnmodifiableListMultimap || delegate instanceof ImmutableListMultimap) {
       return delegate;
     }
@@ -1010,8 +1025,8 @@ ListMultimap<K, V> unmodifiableListMultimap(ListMultimap<K, V> delegate) {
    * @since 10.0
    */
   @Deprecated
-  public static <K, V> ListMultimap<K, V> unmodifiableListMultimap(
-      ImmutableListMultimap<K, V> delegate) {
+  public static <K extends @Immutable Object, V> ListMultimap<K, V> unmodifiableListMultimap(
+      ImmutableListMultimap<K, @Immutable V> delegate) {
     return checkNotNull(delegate);
   }
 
@@ -1023,8 +1038,8 @@ public static <K, V> ListMultimap<K, V> unmodifiableListMultimap(
    * @param collection the collection for which to return an unmodifiable view
    * @return an unmodifiable view of the collection
    */
-  private static <V extends @Nullable Object> Collection<V> unmodifiableValueCollection(
-      Collection<V> collection) {
+  private static <V extends @Nullable @Readonly Object> @Readonly Collection<V> unmodifiableValueCollection(
+          @Readonly Collection<V> collection) {
     if (collection instanceof SortedSet) {
       return Collections.unmodifiableSortedSet((SortedSet<V>) collection);
     } else if (collection instanceof Set) {
@@ -1043,10 +1058,10 @@ public static <K, V> ListMultimap<K, V> unmodifiableListMultimap(
    * @param entries the entries for which to return an unmodifiable view
    * @return an unmodifiable view of the entries
    */
-  private static <K extends @Nullable Object, V extends @Nullable Object>
-      Collection<Entry<K, V>> unmodifiableEntries(Collection<Entry<K, V>> entries) {
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+    @Readonly Collection<@Readonly Entry<K, V>> unmodifiableEntries(@Readonly Collection<Entry<K, V>> entries) {
     if (entries instanceof Set) {
-      return Maps.unmodifiableEntrySet((Set<Entry<K, V>>) entries);
+      return Maps.unmodifiableEntrySet((Set<@Readonly Entry<K, V>>) entries);
     }
     return new Maps.UnmodifiableEntries<>(Collections.unmodifiableCollection(entries));
   }
@@ -1060,9 +1075,9 @@ Collection<Entry<K, V>> unmodifiableEntries(Collection<Entry<K, V>> entries) {
   @Beta
   @SuppressWarnings("unchecked")
   // safe by specification of ListMultimap.asMap()
-  public static <K extends @Nullable Object, V extends @Nullable Object> Map<K, List<V>> asMap(
-      ListMultimap<K, V> multimap) {
-    return (Map<K, List<V>>) (Map<K, ?>) multimap.asMap();
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @PolyMutable Map<K, @PolyMutable List<V>> asMap(
+          @PolyMutable ListMultimap<K, V> multimap) {
+    return (@PolyMutable Map<K, @PolyMutable List<V>>) (@PolyMutable Map<K, ?>) multimap.asMap();
   }
 
   /**
@@ -1074,9 +1089,9 @@ Collection<Entry<K, V>> unmodifiableEntries(Collection<Entry<K, V>> entries) {
   @Beta
   @SuppressWarnings("unchecked")
   // safe by specification of SetMultimap.asMap()
-  public static <K extends @Nullable Object, V extends @Nullable Object> Map<K, Set<V>> asMap(
-      SetMultimap<K, V> multimap) {
-    return (Map<K, Set<V>>) (Map<K, ?>) multimap.asMap();
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @PolyMutable Map<K, @PolyMutable Set<V>> asMap(
+          @PolyMutable SetMultimap<K, V> multimap) {
+    return (@PolyMutable Map<K, @PolyMutable Set<V>>) (@PolyMutable Map<K, ?>) multimap.asMap();
   }
 
   /**
@@ -1088,9 +1103,9 @@ Collection<Entry<K, V>> unmodifiableEntries(Collection<Entry<K, V>> entries) {
   @Beta
   @SuppressWarnings("unchecked")
   // safe by specification of SortedSetMultimap.asMap()
-  public static <K extends @Nullable Object, V extends @Nullable Object> Map<K, SortedSet<V>> asMap(
-      SortedSetMultimap<K, V> multimap) {
-    return (Map<K, SortedSet<V>>) (Map<K, ?>) multimap.asMap();
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> @PolyMutable Map<K, @PolyMutable SortedSet<V>> asMap(
+          @PolyMutable SortedSetMultimap<K, V> multimap) {
+    return (@PolyMutable Map<K, @PolyMutable SortedSet<V>>) (@PolyMutable Map<K, ?>) multimap.asMap();
   }
 
   /**
@@ -1100,8 +1115,8 @@ Collection<Entry<K, V>> unmodifiableEntries(Collection<Entry<K, V>> entries) {
    * @since 15.0
    */
   @Beta
-  public static <K extends @Nullable Object, V extends @Nullable Object>
-      Map<K, Collection<V>> asMap(Multimap<K, V> multimap) {
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+      @PolyMutable Map<K, @PolyMutable Collection<V>> asMap(@PolyMutable Multimap<K, V> multimap) {
     return multimap.asMap();
   }
 
@@ -1120,47 +1135,49 @@ Map<K, Collection<V>> asMap(Multimap<K, V> multimap) {
    *
    * @param map the backing map for the returned multimap view
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> SetMultimap<K, V> forMap(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> SetMultimap<K, V> forMap(
       Map<K, V> map) {
     return new MapMultimap<>(map);
   }
 
   /** @see Multimaps#forMap */
-  private static class MapMultimap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  @CFComment("PICO: V is immutable because it is used as hashset's element")
+  private static class MapMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
       extends AbstractMultimap<K, V> implements SetMultimap<K, V>, Serializable {
     final Map<K, V> map;
 
-    MapMultimap(Map<K, V> map) {
+    MapMultimap(@ReceiverDependentMutable Map<K, V> map) {
       this.map = checkNotNull(map);
     }
 
     @Pure
     @Override
-    public int size() {
+    public int size(@Readonly MapMultimap<K, V> this) {
       return map.size();
     }
 
     @Pure
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@Readonly MapMultimap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return map.containsKey(key);
     }
 
     @Pure
     @Override
-    public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+    public boolean containsValue(@Readonly MapMultimap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
       return map.containsValue(value);
     }
 
     @Pure
     @Override
-    public boolean containsEntry(@CheckForNull Object key, @CheckForNull Object value) {
+    public boolean containsEntry(@Readonly MapMultimap<K, V> this, @CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
       return map.entrySet().contains(Maps.immutableEntry(key, value));
     }
 
     @Override
-    public Set<V> get(@ParametricNullness final K key) {
-      return new Sets.ImprovedAbstractSet<V>() {
+    public @PolyMutable Set<V> get(@PolyMutable MapMultimap<K, V> this, @ParametricNullness final K key) {
+      return new Sets.@PolyMutable ImprovedAbstractSet<V>() {
         @Override
         public Iterator<V> iterator() {
           return new Iterator<V>() {
@@ -1213,22 +1230,22 @@ public boolean putAll(@ParametricNullness K key, Iterable<? extends V> values) {
     }
 
     @Override
-    public boolean putAll(Multimap<? extends K, ? extends V> multimap) {
+    public boolean putAll(@Readonly Multimap<? extends K, ? extends V> multimap) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
+    public @Readonly Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public boolean remove(@CheckForNull Object key, @CheckForNull Object value) {
+    public boolean remove(@Mutable MapMultimap<K, V> this, @CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
       return map.entrySet().remove(Maps.immutableEntry(key, value));
     }
 
     @Override
-    public Set<V> removeAll(@CheckForNull Object key) {
+    public @Readonly Set<V> removeAll(@Mutable MapMultimap<K, V> this, @CheckForNull @Readonly Object key) {
       Set<V> values = new HashSet<V>(2);
       if (!map.containsKey(key)) {
         return values;
@@ -1238,51 +1255,51 @@ public Set<V> removeAll(@CheckForNull Object key) {
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable MapMultimap<K, V> this) {
       map.clear();
     }
 
     @SideEffectFree
     @Override
-    Set<K> createKeySet() {
+    @PolyMutable Set<K> createKeySet(@PolyMutable MapMultimap<K, V> this) {
       return map.keySet();
     }
 
     @SideEffectFree
     @Override
-    Collection<V> createValues() {
+    @PolyMutable Collection<V> createValues(@PolyMutable MapMultimap<K, V> this) {
       return map.values();
     }
 
     @SideEffectFree
     @Override
-    public Set<Entry<K, V>> entries() {
+    public @PolyMutable Set<@PolyMutable Entry<K, V>> entries(@PolyMutable MapMultimap<K, V> this) {
       return map.entrySet();
     }
 
     @Override
-    Collection<Entry<K, V>> createEntries() {
+    @PolyMutable Collection<@PolyMutable Entry<K, V>> createEntries(@PolyMutable MapMultimap<K, V> this) {
       throw new AssertionError("unreachable");
     }
 
     @Override
-    Multiset<K> createKeys() {
+    @PolyMutable Multiset<K> createKeys(@PolyMutable MapMultimap<K, V> this) {
       return new Multimaps.Keys<K, V>(this);
     }
 
     @Override
-    Iterator<Entry<K, V>> entryIterator() {
+    Iterator<@PolyMutable Entry<K, V>> entryIterator(@PolyMutable MapMultimap<K, V> this) {
       return map.entrySet().iterator();
     }
 
     @Override
-    Map<K, Collection<V>> createAsMap() {
+    @PolyMutable Map<K, @PolyMutable Collection<V>> createAsMap(@PolyMutable MapMultimap<K, V> this) {
       return new AsMap<>(this);
     }
 
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness MapMultimap<K, V> this) {
+    public int hashCode(@UnknownSignedness @Readonly MapMultimap<K, V> this) {
       return map.hashCode();
     }
 
@@ -1331,7 +1348,7 @@ public int hashCode(@UnknownSignedness MapMultimap<K, V> this) {
    * @since 7.0
    */
   public static <
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       Multimap<K, V2> transformValues(
           Multimap<K, V1> fromMultimap, final Function<? super V1, V2> function) {
     checkNotNull(function);
@@ -1380,7 +1397,7 @@ Multimap<K, V2> transformValues(
    * @since 7.0
    */
   public static <
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       ListMultimap<K, V2> transformValues(
           ListMultimap<K, V1> fromMultimap, final Function<? super V1, V2> function) {
     checkNotNull(function);
@@ -1440,7 +1457,7 @@ ListMultimap<K, V2> transformValues(
    * @since 7.0
    */
   public static <
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       Multimap<K, V2> transformEntries(
           Multimap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
     return new TransformedEntriesMultimap<>(fromMap, transformer);
@@ -1495,21 +1512,22 @@ Multimap<K, V2> transformEntries(
    * @since 7.0
    */
   public static <
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       ListMultimap<K, V2> transformEntries(
           ListMultimap<K, V1> fromMap, EntryTransformer<? super K, ? super V1, V2> transformer) {
     return new TransformedEntriesListMultimap<>(fromMap, transformer);
   }
 
+  @ReceiverDependentMutable
   private static class TransformedEntriesMultimap<
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       extends AbstractMultimap<K, V2> {
     final Multimap<K, V1> fromMultimap;
     final EntryTransformer<? super K, ? super V1, V2> transformer;
 
     TransformedEntriesMultimap(
-        Multimap<K, V1> fromMultimap,
-        final EntryTransformer<? super K, ? super V1, V2> transformer) {
+            @ReceiverDependentMutable Multimap<K, V1> fromMultimap,
+        final @ReceiverDependentMutable EntryTransformer<? super K, ? super V1, V2> transformer) {
       this.fromMultimap = checkNotNull(fromMultimap);
       this.transformer = checkNotNull(transformer);
     }
@@ -1524,55 +1542,55 @@ Collection<V2> transform(@ParametricNullness K key, Collection<V1> values) {
     }
 
     @Override
-    Map<K, Collection<V2>> createAsMap() {
+    @PolyMutable Map<K, @PolyMutable Collection<V2>> createAsMap(@PolyMutable TransformedEntriesMultimap<K, V1, V2> this) {
       return Maps.transformEntries(
           fromMultimap.asMap(),
           new EntryTransformer<K, Collection<V1>, Collection<V2>>() {
             @Override
-            public Collection<V2> transformEntry(@ParametricNullness K key, Collection<V1> value) {
+            public @PolyMutable Collection<V2> transformEntry(@ParametricNullness K key, @PolyMutable Collection<V1> value) {
               return transform(key, value);
             }
           });
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable TransformedEntriesMultimap<K, V1, V2> this) {
       fromMultimap.clear();
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@Readonly TransformedEntriesMultimap<K, V1, V2> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return fromMultimap.containsKey(key);
     }
 
     @Override
-    Collection<Entry<K, V2>> createEntries() {
+    @PolyMutable Collection<@PolyMutable Entry<K, V2>> createEntries(@PolyMutable TransformedEntriesMultimap<K, V1, V2> this) {
       return new Entries();
     }
 
     @Override
-    Iterator<Entry<K, V2>> entryIterator() {
+    Iterator<@PolyMutable Entry<K, V2>> entryIterator(@PolyMutable TransformedEntriesMultimap<K, V1, V2> this) {
       return Iterators.transform(
           fromMultimap.entries().iterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer));
     }
 
     @Override
-    public Collection<V2> get(@ParametricNullness final K key) {
+    public @PolyMutable Collection<V2> get(@PolyMutable TransformedEntriesMultimap<K, V1, V2> this, @ParametricNullness final K key) {
       return transform(key, fromMultimap.get(key));
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly TransformedEntriesMultimap<K, V1, V2> this) {
       return fromMultimap.isEmpty();
     }
 
     @Override
-    Set<K> createKeySet() {
+    @PolyMutable Set<K> createKeySet(@PolyMutable TransformedEntriesMultimap<K, V1, V2> this) {
       return fromMultimap.keySet();
     }
 
     @Override
-    Multiset<K> createKeys() {
+    @PolyMutable Multiset<K> createKeys(@PolyMutable TransformedEntriesMultimap<K, V1, V2> this) {
       return fromMultimap.keys();
     }
 
@@ -1593,60 +1611,61 @@ public boolean putAll(Multimap<? extends K, ? extends V2> multimap) {
 
     @SuppressWarnings("unchecked")
     @Override
-    public boolean remove(@CheckForNull Object key, @CheckForNull Object value) {
+    public boolean remove(@CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
       return get((K) key).remove(value);
     }
 
     @SuppressWarnings("unchecked")
     @Override
-    public Collection<V2> removeAll(@CheckForNull Object key) {
+    public @Readonly Collection<V2> removeAll(@Mutable TransformedEntriesMultimap<K, V1, V2> this, @CheckForNull @Readonly Object key) {
       return transform((K) key, fromMultimap.removeAll(key));
     }
 
     @Override
-    public Collection<V2> replaceValues(@ParametricNullness K key, Iterable<? extends V2> values) {
+    public @Readonly Collection<V2> replaceValues(@ParametricNullness K key, Iterable<? extends V2> values) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public int size() {
+    public int size(@Readonly TransformedEntriesMultimap<K, V1, V2> this) {
       return fromMultimap.size();
     }
 
     @Override
-    Collection<V2> createValues() {
+    @PolyMutable Collection<V2> createValues(@PolyMutable TransformedEntriesMultimap<K, V1, V2> this) {
       return Collections2.transform(
           fromMultimap.entries(), Maps.<K, V1, V2>asEntryToValueFunction(transformer));
     }
   }
 
+  @ReceiverDependentMutable
   private static final class TransformedEntriesListMultimap<
-          K extends @Nullable Object, V1 extends @Nullable Object, V2 extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V1 extends @Nullable @Readonly Object, V2 extends @Nullable @Readonly Object>
       extends TransformedEntriesMultimap<K, V1, V2> implements ListMultimap<K, V2> {
 
     TransformedEntriesListMultimap(
-        ListMultimap<K, V1> fromMultimap, EntryTransformer<? super K, ? super V1, V2> transformer) {
+            @ReceiverDependentMutable ListMultimap<K, V1> fromMultimap, @ReceiverDependentMutable EntryTransformer<? super K, ? super V1, V2> transformer) {
       super(fromMultimap, transformer);
     }
 
     @Override
-    List<V2> transform(@ParametricNullness K key, Collection<V1> values) {
+    @PolyMutable List<V2> transform(@ParametricNullness K key, @PolyMutable Collection<V1> values) {
       return Lists.transform((List<V1>) values, Maps.asValueToValueFunction(transformer, key));
     }
 
     @Override
-    public List<V2> get(@ParametricNullness K key) {
+    public @PolyMutable List<V2> get(@PolyMutable TransformedEntriesListMultimap<K, V1, V2> this, @ParametricNullness K key) {
       return transform(key, fromMultimap.get(key));
     }
 
     @SuppressWarnings("unchecked")
     @Override
-    public List<V2> removeAll(@CheckForNull Object key) {
+    public @Readonly List<V2> removeAll(@Mutable TransformedEntriesListMultimap<K, V1, V2> this, @CheckForNull @Readonly Object key) {
       return transform((K) key, fromMultimap.removeAll(key));
     }
 
     @Override
-    public List<V2> replaceValues(@ParametricNullness K key, Iterable<? extends V2> values) {
+    public @Readonly List<V2> replaceValues(@ParametricNullness K key, Iterable<? extends V2> values) {
       throw new UnsupportedOperationException();
     }
   }
@@ -1686,7 +1705,7 @@ public List<V2> replaceValues(@ParametricNullness K key, Iterable<? extends V2>
    * @throws NullPointerException if any element of {@code values} is {@code null}, or if {@code
    *     keyFunction} produces {@code null} for any key
    */
-  public static <K, V> ImmutableListMultimap<K, V> index(
+  public static <K extends @Immutable Object, V extends @Immutable Object> ImmutableListMultimap<K, V> index(
       Iterable<V> values, Function<? super V, K> keyFunction) {
     return index(values.iterator(), keyFunction);
   }
@@ -1727,10 +1746,10 @@ public static <K, V> ImmutableListMultimap<K, V> index(
    *     keyFunction} produces {@code null} for any key
    * @since 10.0
    */
-  public static <K, V> ImmutableListMultimap<K, V> index(
+  public static <K extends @Immutable Object, V> ImmutableListMultimap<K, @Immutable V> index(
       Iterator<V> values, Function<? super V, K> keyFunction) {
     checkNotNull(keyFunction);
-    ImmutableListMultimap.Builder<K, V> builder = ImmutableListMultimap.builder();
+    ImmutableListMultimap.Builder<K, @Immutable V> builder = ImmutableListMultimap.builder();
     while (values.hasNext()) {
       V value = values.next();
       checkNotNull(value, values);
@@ -1739,16 +1758,17 @@ public static <K, V> ImmutableListMultimap<K, V> index(
     return builder.build();
   }
 
-  static class Keys<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class Keys<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractMultiset<K> {
     @Weak final Multimap<K, V> multimap;
 
-    Keys(Multimap<K, V> multimap) {
+    Keys(@ReceiverDependentMutable Multimap<K, V> multimap) {
       this.multimap = multimap;
     }
 
     @Override
-    Iterator<Multiset.Entry<K>> entryIterator() {
+    Iterator<Multiset.@PolyMutable Entry<K>> entryIterator(@PolyMutable Keys<K, V> this) {
       return new TransformedIterator<Map.Entry<K, Collection<V>>, Multiset.Entry<K>>(
           multimap.asMap().entrySet().iterator()) {
         @Override
@@ -1770,7 +1790,7 @@ public int getCount() {
     }
 
     @Override
-    public Spliterator<K> spliterator() {
+    public Spliterator<K> spliterator(@PolyMutable Keys<K, V> this) {
       return CollectSpliterators.map(multimap.entries().spliterator(), Map.Entry::getKey);
     }
 
@@ -1781,33 +1801,33 @@ public void forEach(Consumer<? super K> consumer) {
     }
 
     @Override
-    int distinctElements() {
+    int distinctElements(@Readonly Keys<K, V> this) {
       return multimap.asMap().size();
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly Keys<K, V> this) {
       return multimap.size();
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object element) {
+    public boolean contains(@Readonly Keys<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object element) {
       return multimap.containsKey(element);
     }
 
     @Override
-    public Iterator<K> iterator() {
+    public Iterator<K> iterator(@PolyMutable Keys<K, V> this) {
       return Maps.keyIterator(multimap.entries().iterator());
     }
 
     @Override
-    public @NonNegative int count(@CheckForNull @UnknownSignedness Object element) {
+    public @NonNegative int count(@Readonly Keys<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object element) {
       Collection<V> values = Maps.safeGet(multimap.asMap(), element);
       return (values == null) ? 0 : values.size();
     }
 
     @Override
-    public int remove(@CheckForNull Object element, int occurrences) {
+    public int remove(@Mutable Keys<K, V> this, @CheckForNull @Readonly Object element, int occurrences) {
       checkNonnegative(occurrences, "occurrences");
       if (occurrences == 0) {
         return count(element);
@@ -1833,12 +1853,12 @@ public int remove(@CheckForNull Object element, int occurrences) {
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable Keys<K, V> this) {
       multimap.clear();
     }
 
     @Override
-    public Set<K> elementSet() {
+    public @PolyMutable Set<K> elementSet(@PolyMutable Keys<K, V> this) {
       return multimap.keySet();
     }
 
@@ -1849,17 +1869,18 @@ Iterator<K> elementIterator() {
   }
 
   /** A skeleton implementation of {@link Multimap#entries()}. */
-  abstract static class Entries<K extends @Nullable Object, V extends @Nullable Object>
-      extends AbstractCollection<Map.Entry<K, V>> {
-    abstract Multimap<K, V> multimap();
+  @ReceiverDependentMutable
+  abstract static class Entries<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+      extends AbstractCollection<Map.@ReceiverDependentMutable Entry<K, V>> {
+    abstract @PolyMutable Multimap<K, V> multimap(@PolyMutable Entries<K, V> this);
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly Entries<K, V> this) {
       return multimap().size();
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly Entries<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (o instanceof Map.Entry) {
         Map.Entry<?, ?> entry = (Map.Entry<?, ?>) o;
         return multimap().containsEntry(entry.getKey(), entry.getValue());
@@ -1868,7 +1889,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable Entries<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (o instanceof Map.Entry) {
         Map.Entry<?, ?> entry = (Map.Entry<?, ?>) o;
         return multimap().remove(entry.getKey(), entry.getValue());
@@ -1877,43 +1898,46 @@ public boolean remove(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable Entries<K, V> this) {
       multimap().clear();
     }
   }
 
   /** A skeleton implementation of {@link Multimap#asMap()}. */
-  static final class AsMap<K extends @Nullable Object, V extends @Nullable Object>
-      extends Maps.ViewCachingAbstractMap<K, Collection<V>> {
+  @ReceiverDependentMutable
+  static final class AsMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+      extends Maps.ViewCachingAbstractMap<K, @Readonly Collection<V>> {
     @Weak private final Multimap<K, V> multimap;
 
-    AsMap(Multimap<K, V> multimap) {
+    AsMap(@ReceiverDependentMutable Multimap<K, V> multimap) {
       this.multimap = checkNotNull(multimap);
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly AsMap<K, V> this) {
       return multimap.keySet().size();
     }
 
     @Override
-    protected Set<Entry<K, Collection<V>>> createEntrySet() {
+    protected @PolyMutable Set<Entry<K, @PolyMutable Collection<V>>> createEntrySet(@PolyMutable AsMap<K, V> this) {
       return new EntrySet();
     }
 
-    void removeValuesForKey(@CheckForNull Object key) {
+    void removeValuesForKey(@CheckForNull @Readonly Object key) {
       multimap.keySet().remove(key);
     }
 
     @WeakOuter
-    class EntrySet extends Maps.EntrySet<K, Collection<V>> {
+    @ReceiverDependentMutable
+    @CFComment("PICO: outer receiver dependency")
+    class EntrySet extends Maps.EntrySet<K, @Readonly Collection<V>> {
       @Override
-      Map<K, Collection<V>> map() {
+      @PolyMutable Map<K, @PolyMutable Collection<V>> map(@PolyMutable AsMap<K, V>.@Readonly EntrySet this) {
         return AsMap.this;
       }
 
       @Override
-      public Iterator<Entry<K, Collection<V>>> iterator() {
+      public Iterator<@PolyMutable Entry<K, @PolyMutable Collection<V>>> iterator(@PolyMutable AsMap<K, V>.@Readonly EntrySet this) {
         return Maps.asMapEntryIterator(
             multimap.keySet(),
             new Function<K, Collection<V>>() {
@@ -1925,7 +1949,7 @@ public Collection<V> apply(@ParametricNullness K key) {
       }
 
       @Override
-      public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+      public boolean remove(@Mutable EntrySet this, @CheckForNull @UnknownSignedness @Readonly Object o) {
         if (!contains(o)) {
           return false;
         }
@@ -1939,33 +1963,33 @@ public boolean remove(@CheckForNull @UnknownSignedness Object o) {
     @SuppressWarnings("unchecked")
     @Override
     @CheckForNull
-    public Collection<V> get(@CheckForNull @UnknownSignedness Object key) {
+    public @PolyMutable Collection<V> get(@PolyMutable AsMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return containsKey(key) ? multimap.get((K) key) : null;
     }
 
     @Override
     @CheckForNull
-    public Collection<V> remove(@CheckForNull @UnknownSignedness Object key) {
+    public @Readonly Collection<V> remove(@Mutable AsMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return containsKey(key) ? multimap.removeAll(key) : null;
     }
 
     @Override
-    public Set<@KeyFor({"this"}) K> keySet() {
+    public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable AsMap<K, V> this) {
       return multimap.keySet();
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly AsMap<K, V> this) {
       return multimap.isEmpty();
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@Mutable AsMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return multimap.containsKey(key);
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable AsMap<K, V> this) {
       multimap.clear();
     }
   }
@@ -1997,7 +2021,7 @@ public void clear() {
    *
    * @since 11.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> Multimap<K, V> filterKeys(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Multimap<K, V> filterKeys(
       Multimap<K, V> unfiltered, final Predicate<? super K> keyPredicate) {
     if (unfiltered instanceof SetMultimap) {
       return filterKeys((SetMultimap<K, V>) unfiltered, keyPredicate);
@@ -2042,7 +2066,7 @@ public void clear() {
    *
    * @since 14.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SetMultimap<K, V> filterKeys(
           SetMultimap<K, V> unfiltered, final Predicate<? super K> keyPredicate) {
     if (unfiltered instanceof FilteredKeySetMultimap) {
@@ -2084,7 +2108,7 @@ SetMultimap<K, V> filterKeys(
    *
    * @since 14.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       ListMultimap<K, V> filterKeys(
           ListMultimap<K, V> unfiltered, final Predicate<? super K> keyPredicate) {
     if (unfiltered instanceof FilteredKeyListMultimap) {
@@ -2123,7 +2147,7 @@ ListMultimap<K, V> filterKeys(
    *
    * @since 11.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Multimap<K, V> filterValues(
           Multimap<K, V> unfiltered, final Predicate<? super V> valuePredicate) {
     return filterEntries(unfiltered, Maps.<V>valuePredicateOnEntries(valuePredicate));
@@ -2156,7 +2180,7 @@ Multimap<K, V> filterValues(
    *
    * @since 14.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SetMultimap<K, V> filterValues(
           SetMultimap<K, V> unfiltered, final Predicate<? super V> valuePredicate) {
     return filterEntries(unfiltered, Maps.<V>valuePredicateOnEntries(valuePredicate));
@@ -2187,7 +2211,7 @@ SetMultimap<K, V> filterValues(
    *
    * @since 11.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Multimap<K, V> filterEntries(
           Multimap<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
     checkNotNull(entryPredicate);
@@ -2224,7 +2248,7 @@ Multimap<K, V> filterEntries(
    *
    * @since 14.0
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object>
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SetMultimap<K, V> filterEntries(
           SetMultimap<K, V> unfiltered, Predicate<? super Entry<K, V>> entryPredicate) {
     checkNotNull(entryPredicate);
@@ -2239,7 +2263,7 @@ SetMultimap<K, V> filterEntries(
    * lead to a multimap whose removal operations would fail. This method combines the predicates to
    * avoid that problem.
    */
-  private static <K extends @Nullable Object, V extends @Nullable Object>
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Multimap<K, V> filterFiltered(
           FilteredMultimap<K, V> multimap, Predicate<? super Entry<K, V>> entryPredicate) {
     Predicate<Entry<K, V>> predicate =
@@ -2253,7 +2277,7 @@ Multimap<K, V> filterFiltered(
    * lead to a multimap whose removal operations would fail. This method combines the predicates to
    * avoid that problem.
    */
-  private static <K extends @Nullable Object, V extends @Nullable Object>
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SetMultimap<K, V> filterFiltered(
           FilteredSetMultimap<K, V> multimap, Predicate<? super Entry<K, V>> entryPredicate) {
     Predicate<Entry<K, V>> predicate =
@@ -2261,7 +2285,7 @@ SetMultimap<K, V> filterFiltered(
     return new FilteredEntrySetMultimap<>(multimap.unfiltered(), predicate);
   }
 
-  static boolean equalsImpl(Multimap<?, ?> multimap, @CheckForNull @UnknownSignedness Object object) {
+  static boolean equalsImpl(@Readonly Multimap<?, ?> multimap, @CheckForNull @UnknownSignedness @Readonly Object object) {
     if (object == multimap) {
       return true;
     }
diff --git a/guava/src/com/google/common/collect/Multiset.java b/guava/src/com/google/common/collect/Multiset.java
index cfa3adf164a4..c7e6433f1198 100644
--- a/guava/src/com/google/common/collect/Multiset.java
+++ b/guava/src/com/google/common/collect/Multiset.java
@@ -33,6 +33,10 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -90,10 +94,11 @@
  * @author Kevin Bourrillion
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public interface Multiset<E extends @Nullable Object> extends Collection<E> {
+@ReceiverDependentMutable
+public interface Multiset<E extends @Readonly @Nullable Object> extends Collection<E> {
   // Query Operations
 
   /**
@@ -103,7 +108,7 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    * multiset, which is given by {@code entrySet().size()}.
    */
   @Override
-  @NonNegative int size();
+  @NonNegative int size(@Readonly Multiset<E> this);
 
   /**
    * Returns the number of occurrences of an element in this multiset (the <i>count</i> of the
@@ -118,7 +123,7 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    * @return the number of occurrences of the element in this multiset; possibly zero but never
    *     negative
    */
-  int count(@CompatibleWith("E") @CheckForNull Object element);
+  int count(@Readonly Multiset<E> this, @CompatibleWith("E") @CheckForNull @Readonly Object element);
 
   // Bulk Operations
 
@@ -141,7 +146,7 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    *     return normally.
    */
   @CanIgnoreReturnValue
-  int add(@ParametricNullness E element, int occurrences);
+  int add(@Mutable Multiset<E> this, @ParametricNullness E element, int occurrences);
 
   /**
    * Adds a single occurrence of the specified element to this multiset.
@@ -164,7 +169,7 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    */
   @CanIgnoreReturnValue
   @Override
-  boolean add(@ParametricNullness E element);
+  boolean add(@Mutable Multiset<E> this, @ParametricNullness E element);
 
   /**
    * Removes a number of occurrences of the specified element from this multiset. If the multiset
@@ -179,7 +184,7 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    * @throws IllegalArgumentException if {@code occurrences} is negative
    */
   @CanIgnoreReturnValue
-  int remove(@CompatibleWith("E") @CheckForNull Object element, int occurrences);
+  int remove(@Mutable Multiset<E> this, @CompatibleWith("E") @CheckForNull @Readonly Object element, int occurrences);
 
   /**
    * Removes a <i>single</i> occurrence of the specified element from this multiset, if present.
@@ -195,7 +200,7 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    */
   @CanIgnoreReturnValue
   @Override
-  boolean remove(@CheckForNull @UnknownSignedness Object element);
+  boolean remove(@Mutable Multiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object element);
 
   /**
    * Adds or removes the necessary occurrences of an element such that the element attains the
@@ -211,7 +216,7 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    *     zero instead.
    */
   @CanIgnoreReturnValue
-  int setCount(@ParametricNullness E element, int count);
+  int setCount(@Mutable Multiset<E> this, @ParametricNullness E element, int count);
 
   /**
    * Conditionally sets the count of an element to a new value, as described in {@link
@@ -230,7 +235,7 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    *     implementor may optionally return {@code true} instead.
    */
   @CanIgnoreReturnValue
-  boolean setCount(@ParametricNullness E element, int oldCount, int newCount);
+  boolean setCount(@Mutable Multiset<E> this, @ParametricNullness E element, int oldCount, int newCount);
 
   // Views
 
@@ -248,7 +253,7 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    *
    * @return a view of the set of distinct elements in this multiset
    */
-  Set<E> elementSet();
+  @PolyMutable Set<E> elementSet(@PolyMutable Multiset<E> this);
 
   /**
    * Returns a view of the contents of this multiset, grouped into {@code Multiset.Entry} instances,
@@ -266,7 +271,7 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    *
    * @return a set of entries representing the data of this multiset
    */
-  Set<Entry<E>> entrySet();
+  @PolyMutable Set<Entry<E>> entrySet(@PolyMutable Multiset<E> this);
 
   /**
    * An unmodifiable element-count pair for a multiset. The {@link Multiset#entrySet} method returns
@@ -276,7 +281,8 @@ public interface Multiset<E extends @Nullable Object> extends Collection<E> {
    *
    * @since 2.0
    */
-  interface Entry<E extends @Nullable Object> {
+  @ReceiverDependentMutable
+  interface Entry<E extends @Readonly @Nullable Object> {
 
     /**
      * Returns the multiset element corresponding to this entry. Multiple calls to this method
@@ -285,7 +291,7 @@ interface Entry<E extends @Nullable Object> {
      * @return the element corresponding to this entry
      */
     @ParametricNullness
-    E getElement();
+    E getElement(@Readonly Entry<E> this);
 
     /**
      * Returns the count of the associated element in the underlying multiset. This count may either
@@ -296,7 +302,7 @@ interface Entry<E extends @Nullable Object> {
      *
      * @return the count of the element; never negative
      */
-    int getCount();
+    int getCount(@Readonly Entry<E> this);
 
     /**
      * {@inheritDoc}
@@ -313,7 +319,7 @@ interface Entry<E extends @Nullable Object> {
     @Pure
     @Override
     // TODO(kevinb): check this wrt TreeMultiset?
-    boolean equals(@CheckForNull Object o);
+    boolean equals(@Readonly Entry<E> this, @CheckForNull @Readonly Object o);
 
     /**
      * {@inheritDoc}
@@ -327,7 +333,7 @@ interface Entry<E extends @Nullable Object> {
      */
     @Pure
     @Override
-    int hashCode(@UnknownSignedness Entry<E> this);
+    int hashCode(@UnknownSignedness @Readonly Entry<E> this);
 
     /**
      * Returns the canonical string representation of this entry, defined as follows. If the count
@@ -337,7 +343,7 @@ interface Entry<E extends @Nullable Object> {
      */
     @SideEffectFree
     @Override
-    String toString();
+    String toString(@Readonly Entry<E> this);
   }
 
   /**
@@ -364,7 +370,7 @@ default void forEachEntry(ObjIntConsumer<? super E> action) {
   @Pure
   @Override
   // TODO(kevinb): caveats about equivalence-relation?
-  boolean equals(@CheckForNull @UnknownSignedness Object object);
+  boolean equals(@Readonly Multiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object object);
 
   /**
    * Returns the hash code for this multiset. This is defined as the sum of
@@ -378,7 +384,7 @@ default void forEachEntry(ObjIntConsumer<? super E> action) {
    */
   @Pure
   @Override
-  int hashCode(@UnknownSignedness Multiset<E> this);
+  int hashCode(@UnknownSignedness @Readonly Multiset<E> this);
 
   /**
    * {@inheritDoc}
@@ -389,7 +395,7 @@ default void forEachEntry(ObjIntConsumer<? super E> action) {
    */
   @SideEffectFree
   @Override
-  String toString();
+  String toString(@Readonly Multiset<E> this);
 
   // Refined Collection Methods
 
@@ -400,7 +406,7 @@ default void forEachEntry(ObjIntConsumer<? super E> action) {
    * iterator, though not necessarily sequentially.
    */
   @Override
-  Iterator<E> iterator();
+  Iterator<E> iterator(@Readonly Multiset<E> this);
 
   /**
    * Determines whether this multiset contains the specified element.
@@ -413,7 +419,7 @@ default void forEachEntry(ObjIntConsumer<? super E> action) {
    */
   @Pure
   @Override
-  boolean contains(@CheckForNull @UnknownSignedness Object element);
+  boolean contains(@Readonly Multiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object element);
 
   /**
    * Returns {@code true} if this multiset contains at least one occurrence of each element in the
@@ -434,7 +440,7 @@ default void forEachEntry(ObjIntConsumer<? super E> action) {
    */
   @Pure
   @Override
-  boolean containsAll(Collection<?> elements);
+  boolean containsAll(@Readonly Multiset<E> this, @Readonly Collection<?> elements);
 
   /**
    * {@inheritDoc}
@@ -449,7 +455,7 @@ default void forEachEntry(ObjIntConsumer<? super E> action) {
    */
   @CanIgnoreReturnValue
   @Override
-  boolean removeAll(Collection<?> c);
+  boolean removeAll(@Mutable Multiset<E> this, @Readonly Collection<?> c);
 
   /**
    * {@inheritDoc}
@@ -466,7 +472,7 @@ default void forEachEntry(ObjIntConsumer<? super E> action) {
    */
   @CanIgnoreReturnValue
   @Override
-  boolean retainAll(Collection<?> c);
+  boolean retainAll(@Mutable Multiset<E> this, @Readonly Collection<?> c);
 
   /**
    * {@inheritDoc}
@@ -489,7 +495,7 @@ default void forEach(Consumer<? super E> action) {
   }
 
   @Override
-  default Spliterator<E> spliterator() {
+  default Spliterator<E> spliterator(@Readonly Multiset<E> this) {
     return Multisets.spliteratorImpl(this);
   }
 }
diff --git a/guava/src/com/google/common/collect/Multisets.java b/guava/src/com/google/common/collect/Multisets.java
index c6a46509dbe3..7169540a0a0b 100644
--- a/guava/src/com/google/common/collect/Multisets.java
+++ b/guava/src/com/google/common/collect/Multisets.java
@@ -47,10 +47,17 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * Provides static utility methods for creating and working with {@link Multiset} instances.
@@ -64,7 +71,7 @@
  * @author Louis Wasserman
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
 public final class Multisets {
@@ -87,7 +94,7 @@ private Multisets() {}
    *
    * @since 22.0
    */
-  public static <T extends @Nullable Object, E extends @Nullable Object, M extends Multiset<E>>
+  public static <T extends @Nullable @Readonly Object, E extends @Nullable @Readonly Object, M extends @Readonly Multiset<E>>
       Collector<T, ?, M> toMultiset(
           Function<? super T, E> elementFunction,
           ToIntFunction<? super T> countFunction,
@@ -105,7 +112,7 @@ private Multisets() {}
    * @param multiset the multiset for which an unmodifiable view is to be generated
    * @return an unmodifiable view of the multiset
    */
-  public static <E extends @Nullable Object> Multiset<E> unmodifiableMultiset(
+  public static <E extends @Nullable @Readonly Object> @Readonly Multiset<E> unmodifiableMultiset(
       Multiset<? extends E> multiset) {
     if (multiset instanceof UnmodifiableMultiset || multiset instanceof ImmutableMultiset) {
       @SuppressWarnings("unchecked") // Since it's unmodifiable, the covariant cast is safe
@@ -126,22 +133,24 @@ public static <E> Multiset<E> unmodifiableMultiset(ImmutableMultiset<E> multiset
     return checkNotNull(multiset);
   }
 
-  static class UnmodifiableMultiset<E extends @Nullable Object> extends ForwardingMultiset<E>
+  @Immutable
+  static class UnmodifiableMultiset<E extends @Nullable @Readonly Object> extends ForwardingMultiset<E>
       implements Serializable {
-    final Multiset<? extends E> delegate;
+    final @Readonly Multiset<? extends E> delegate;
 
-    UnmodifiableMultiset(Multiset<? extends E> delegate) {
+    UnmodifiableMultiset(@Readonly Multiset<? extends E> delegate) {
       this.delegate = delegate;
     }
 
     @SuppressWarnings("unchecked")
     @Override
-    protected Multiset<E> delegate() {
+    protected @Readonly Multiset<E> delegate() {
       // This is safe because all non-covariant methods are overridden
       return (Multiset<E>) delegate;
     }
 
-    @CheckForNull transient Set<E> elementSet;
+    @CFComment("Change to @LazyFinal later")
+    @CheckForNull transient @Assignable Set<E> elementSet;
 
     Set<E> createElementSet() {
       return Collections.<E>unmodifiableSet(delegate.elementSet());
@@ -149,17 +158,18 @@ Set<E> createElementSet() {
 
     @SideEffectFree
     @Override
-    public Set<E> elementSet() {
+    public @PolyMutable Set<E> elementSet(@PolyMutable UnmodifiableMultiset<E> this) {
       Set<E> es = elementSet;
       return (es == null) ? elementSet = createElementSet() : es;
     }
 
-    @CheckForNull transient Set<Multiset.Entry<E>> entrySet;
+    @CFComment("Change to @LazyFinal later")
+    @CheckForNull transient @Assignable Set<Multiset.Entry<E>> entrySet;
 
     @SideEffectFree
     @SuppressWarnings("unchecked")
     @Override
-    public Set<Multiset.Entry<E>> entrySet() {
+    public @PolyMutable Set<Multiset.Entry<E>> entrySet(@PolyMutable UnmodifiableMultiset<E> this) {
       Set<Multiset.Entry<E>> es = entrySet;
       return (es == null)
           // Safe because the returned set is made unmodifiable and Entry
@@ -169,7 +179,7 @@ public Set<Multiset.Entry<E>> entrySet() {
     }
 
     @Override
-    public Iterator<E> iterator() {
+    public @Readonly Iterator<E> iterator() {
       return Iterators.<E>unmodifiableIterator(delegate.iterator());
     }
 
@@ -189,22 +199,22 @@ public boolean addAll(Collection<? extends E> elementsToAdd) {
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object element) {
+    public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object element) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public int remove(@CheckForNull Object element, int occurrences) {
+    public int remove(@CheckForNull @Readonly Object element, int occurrences) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public boolean removeAll(Collection<?> elementsToRemove) {
+    public boolean removeAll(@Readonly Collection<?> elementsToRemove) {
       throw new UnsupportedOperationException();
     }
 
     @Override
-    public boolean retainAll(Collection<?> elementsToRetain) {
+    public boolean retainAll(@Readonly Collection<?> elementsToRetain) {
       throw new UnsupportedOperationException();
     }
 
@@ -238,7 +248,7 @@ public boolean setCount(@ParametricNullness E element, int oldCount, int newCoun
    * @since 11.0
    */
   @Beta
-  public static <E extends @Nullable Object> SortedMultiset<E> unmodifiableSortedMultiset(
+  public static <E extends @Nullable @Readonly Object> @Readonly SortedMultiset<E> unmodifiableSortedMultiset(
       SortedMultiset<E> sortedMultiset) {
     // it's in its own file so it can be emulated for GWT
     return new UnmodifiableSortedMultiset<E>(checkNotNull(sortedMultiset));
@@ -252,12 +262,13 @@ public boolean setCount(@ParametricNullness E element, int oldCount, int newCoun
    * @param n the count to be associated with the returned entry
    * @throws IllegalArgumentException if {@code n} is negative
    */
-  public static <E extends @Nullable Object> Multiset.Entry<E> immutableEntry(
+  public static <E extends @Nullable @Readonly Object> Multiset.@Immutable Entry<E> immutableEntry(
       @ParametricNullness E e, int n) {
     return new ImmutableEntry<E>(e, n);
   }
 
-  static class ImmutableEntry<E extends @Nullable Object> extends AbstractEntry<E>
+  @Immutable
+  static class ImmutableEntry<E extends @Nullable @Readonly Object> extends AbstractEntry<E>
       implements Serializable {
     @ParametricNullness private final E element;
     private final int count;
@@ -313,7 +324,7 @@ public ImmutableEntry<E> nextInBucket() {
    * @since 14.0
    */
   @Beta
-  public static <E extends @Nullable Object> Multiset<E> filter(
+  public static <E extends @Nullable @Readonly Object> Multiset<E> filter(
       Multiset<E> unfiltered, Predicate<? super E> predicate) {
     if (unfiltered instanceof FilteredMultiset) {
       // Support clear(), removeAll(), and retainAll() when filtering a filtered
@@ -325,17 +336,18 @@ public ImmutableEntry<E> nextInBucket() {
     return new FilteredMultiset<E>(unfiltered, predicate);
   }
 
-  private static final class FilteredMultiset<E extends @Nullable Object> extends ViewMultiset<E> {
+  @ReceiverDependentMutable
+  private static final class FilteredMultiset<E extends @Nullable @Readonly Object> extends ViewMultiset<E> {
     final Multiset<E> unfiltered;
     final Predicate<? super E> predicate;
 
-    FilteredMultiset(Multiset<E> unfiltered, Predicate<? super E> predicate) {
+    FilteredMultiset(@ReceiverDependentMutable Multiset<E> unfiltered, Predicate<? super E> predicate) {
       this.unfiltered = checkNotNull(unfiltered);
       this.predicate = checkNotNull(predicate);
     }
 
     @Override
-    public UnmodifiableIterator<E> iterator() {
+    public @Readonly UnmodifiableIterator<E> iterator(@Readonly FilteredMultiset<E> this) {
       return Iterators.filter(unfiltered.iterator(), predicate);
     }
 
@@ -367,7 +379,7 @@ Iterator<Entry<E>> entryIterator() {
     }
 
     @Override
-    public @NonNegative int count(@CheckForNull @UnknownSignedness Object element) {
+    public @NonNegative int count(@CheckForNull @UnknownSignedness @Readonly Object element) {
       int count = unfiltered.count(element);
       if (count > 0) {
         @SuppressWarnings("unchecked") // element is equal to an E
@@ -385,7 +397,7 @@ public int add(@ParametricNullness E element, int occurrences) {
     }
 
     @Override
-    public int remove(@CheckForNull Object element, int occurrences) {
+    public int remove(@CheckForNull @Readonly Object element, int occurrences) {
       checkNonnegative(occurrences, "occurrences");
       if (occurrences == 0) {
         return count(element);
@@ -420,7 +432,7 @@ static int inferDistinctElements(Iterable<?> elements) {
    * @since 14.0
    */
   @Beta
-  public static <E extends @Nullable Object> Multiset<E> union(
+  public static <E extends @Nullable @Readonly Object> Multiset<E> union(
       final Multiset<? extends E> multiset1, final Multiset<? extends E> multiset2) {
     checkNotNull(multiset1);
     checkNotNull(multiset2);
@@ -492,7 +504,7 @@ protected Entry<E> computeNext() {
    *
    * @since 2.0
    */
-  public static <E extends @Nullable Object> Multiset<E> intersection(
+  public static <E extends @Nullable @Readonly Object> Multiset<E> intersection(
       final Multiset<E> multiset1, final Multiset<?> multiset2) {
     checkNotNull(multiset1);
     checkNotNull(multiset2);
@@ -550,7 +562,7 @@ protected Entry<E> computeNext() {
    * @since 14.0
    */
   @Beta
-  public static <E extends @Nullable Object> Multiset<E> sum(
+  public static <E extends @Nullable @Readonly Object> Multiset<E> sum(
       final Multiset<? extends E> multiset1, final Multiset<? extends E> multiset2) {
     checkNotNull(multiset1);
     checkNotNull(multiset2);
@@ -628,7 +640,7 @@ protected Entry<E> computeNext() {
    * @since 14.0
    */
   @Beta
-  public static <E extends @Nullable Object> Multiset<E> difference(
+  public static <E extends @Nullable @Readonly Object> Multiset<E> difference(
       final Multiset<E> multiset1, final Multiset<?> multiset2) {
     checkNotNull(multiset1);
     checkNotNull(multiset2);
@@ -734,7 +746,7 @@ public static boolean retainOccurrences(
   }
 
   /** Delegate implementation which cares about the element type. */
-  private static <E extends @Nullable Object> boolean retainOccurrencesImpl(
+  private static <E extends @Nullable @Readonly Object> boolean retainOccurrencesImpl(
       Multiset<E> multisetToModify, Multiset<?> occurrencesToRetain) {
     checkNotNull(multisetToModify);
     checkNotNull(occurrencesToRetain);
@@ -818,7 +830,7 @@ public static boolean removeOccurrences(
    */
   @CanIgnoreReturnValue
   public static boolean removeOccurrences(
-      Multiset<?> multisetToModify, Multiset<?> occurrencesToRemove) {
+      @Mutable Multiset<?> multisetToModify, Multiset<?> occurrencesToRemove) {
     checkNotNull(multisetToModify);
     checkNotNull(occurrencesToRemove);
 
@@ -842,14 +854,15 @@ public static boolean removeOccurrences(
    * Implementation of the {@code equals}, {@code hashCode}, and {@code toString} methods of {@link
    * Multiset.Entry}.
    */
-  abstract static class AbstractEntry<E extends @Nullable Object> implements Multiset.Entry<E> {
+  @ReceiverDependentMutable
+  abstract static class AbstractEntry<E extends @Nullable @Readonly Object> implements Multiset.Entry<E> {
     /**
      * Indicates whether an object equals this entry, following the behavior specified in {@link
      * Multiset.Entry#equals}.
      */
     @Pure
     @Override
-    public boolean equals(@CheckForNull Object object) {
+    public boolean equals(@Readonly AbstractEntry<E> this, @CheckForNull @Readonly Object object) {
       if (object instanceof Multiset.Entry) {
         Multiset.Entry<?> that = (Multiset.Entry<?>) object;
         return this.getCount() == that.getCount()
@@ -864,7 +877,7 @@ public boolean equals(@CheckForNull Object object) {
      */
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness AbstractEntry<E> this) {
+    public int hashCode(@UnknownSignedness @Readonly AbstractEntry<E> this) {
       E e = getElement();
       return ((e == null) ? 0 : e.hashCode()) ^ getCount();
     }
@@ -877,7 +890,7 @@ public int hashCode(@UnknownSignedness AbstractEntry<E> this) {
      */
     @Pure
     @Override
-    public String toString() {
+    public String toString(@Readonly AbstractEntry<E> this) {
       String text = String.valueOf(getElement());
       int n = getCount();
       return (n == 1) ? text : (text + " x " + n);
@@ -885,7 +898,7 @@ public String toString() {
   }
 
   /** An implementation of {@link Multiset#equals}. */
-  static boolean equalsImpl(Multiset<?> multiset, @CheckForNull @UnknownSignedness Object object) {
+  static boolean equalsImpl(@Readonly Multiset<?> multiset, @CheckForNull @UnknownSignedness @Readonly Object object) {
     if (object == multiset) {
       return true;
     }
@@ -911,8 +924,7 @@ static boolean equalsImpl(Multiset<?> multiset, @CheckForNull @UnknownSignedness
   }
 
   /** An implementation of {@link Multiset#addAll}. */
-  static <E extends @Nullable Object> boolean addAllImpl(
-      Multiset<E> self, Collection<? extends E> elements) {
+  static <E extends @Nullable @Readonly Object> boolean addAllImpl(Multiset<E> self, @Readonly Collection<? extends E> elements) {
     checkNotNull(self);
     checkNotNull(elements);
     if (elements instanceof Multiset) {
@@ -925,8 +937,7 @@ static boolean equalsImpl(Multiset<?> multiset, @CheckForNull @UnknownSignedness
   }
 
   /** A specialization of {@code addAllImpl} for when {@code elements} is itself a Multiset. */
-  private static <E extends @Nullable Object> boolean addAllImpl(
-      Multiset<E> self, Multiset<? extends E> elements) {
+  private static <E extends @Nullable @Readonly Object> boolean addAllImpl(Multiset<E> self, @Readonly Multiset<? extends E> elements) {
     if (elements.isEmpty()) {
       return false;
     }
@@ -935,7 +946,7 @@ static boolean equalsImpl(Multiset<?> multiset, @CheckForNull @UnknownSignedness
   }
 
   /** An implementation of {@link Multiset#removeAll}. */
-  static boolean removeAllImpl(Multiset<?> self, Collection<?> elementsToRemove) {
+  static boolean removeAllImpl(Multiset<?> self, @Readonly Collection<?> elementsToRemove) {
     Collection<?> collection =
         (elementsToRemove instanceof Multiset)
             ? ((Multiset<?>) elementsToRemove).elementSet()
@@ -945,7 +956,7 @@ static boolean removeAllImpl(Multiset<?> self, Collection<?> elementsToRemove) {
   }
 
   /** An implementation of {@link Multiset#retainAll}. */
-  static boolean retainAllImpl(Multiset<?> self, Collection<?> elementsToRetain) {
+  static boolean retainAllImpl(Multiset<?> self, @Readonly Collection<?> elementsToRetain) {
     checkNotNull(elementsToRetain);
     Collection<?> collection =
         (elementsToRetain instanceof Multiset)
@@ -956,8 +967,7 @@ static boolean retainAllImpl(Multiset<?> self, Collection<?> elementsToRetain) {
   }
 
   /** An implementation of {@link Multiset#setCount(Object, int)}. */
-  static <E extends @Nullable Object> int setCountImpl(
-      Multiset<E> self, @ParametricNullness E element, int count) {
+  static <E extends @Nullable @Readonly Object> int setCountImpl(Multiset<E> self, @ParametricNullness E element, int count) {
     checkNonnegative(count, "count");
 
     int oldCount = self.count(element);
@@ -973,8 +983,7 @@ static boolean retainAllImpl(Multiset<?> self, Collection<?> elementsToRetain) {
   }
 
   /** An implementation of {@link Multiset#setCount(Object, int, int)}. */
-  static <E extends @Nullable Object> boolean setCountImpl(
-      Multiset<E> self, @ParametricNullness E element, int oldCount, int newCount) {
+  static <E extends @Nullable @Readonly Object> boolean setCountImpl(Multiset<E> self, @ParametricNullness E element, int oldCount, int newCount) {
     checkNonnegative(oldCount, "oldCount");
     checkNonnegative(newCount, "newCount");
 
@@ -986,7 +995,7 @@ static boolean retainAllImpl(Multiset<?> self, Collection<?> elementsToRetain) {
     }
   }
 
-  static <E extends @Nullable Object> Iterator<E> elementIterator(
+  static <E extends @Nullable @Readonly Object> Iterator<E> elementIterator(
       Iterator<Entry<E>> entryIterator) {
     return new TransformedIterator<Entry<E>, E>(entryIterator) {
       @Override
@@ -997,49 +1006,51 @@ E transform(Entry<E> entry) {
     };
   }
 
-  abstract static class ElementSet<E extends @Nullable Object> extends Sets.ImprovedAbstractSet<E> {
+  @ReceiverDependentMutable
+  abstract static class ElementSet<E extends @Nullable @Readonly Object> extends Sets.ImprovedAbstractSet<E> {
     abstract Multiset<E> multiset();
 
     @Override
-    public void clear() {
+    public void clear(@Mutable ElementSet<E> this) {
       multiset().clear();
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly ElementSet<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       return multiset().contains(o);
     }
 
     @Override
-    public boolean containsAll(Collection<?> c) {
+    public boolean containsAll(@Readonly ElementSet<E> this, @Readonly Collection<?> c) {
       return multiset().containsAll(c);
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly ElementSet<E> this) {
       return multiset().isEmpty();
     }
 
     @Override
-    public abstract Iterator<E> iterator();
+    public abstract Iterator<E> iterator(@Readonly ElementSet<E> this);
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable ElementSet<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       return multiset().remove(o, Integer.MAX_VALUE) > 0;
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly ElementSet<E> this) {
       return multiset().entrySet().size();
     }
   }
 
-  abstract static class EntrySet<E extends @Nullable Object>
+  @ReceiverDependentMutable
+  abstract static class EntrySet<E extends @Nullable @Readonly Object>
       extends Sets.ImprovedAbstractSet<Entry<E>> {
     abstract Multiset<E> multiset();
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly EntrySet<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (o instanceof Entry) {
         /*
          * The GWT compiler wrongly issues a warning here.
@@ -1058,7 +1069,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object o) {
     // GWT compiler warning; see contains().
     @SuppressWarnings("cast")
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object object) {
+    public boolean remove(@Mutable EntrySet<E> this, @CheckForNull @UnknownSignedness @Readonly Object object) {
       if (object instanceof Multiset.Entry) {
         Entry<?> entry = (Entry<?>) object;
         Object element = entry.getElement();
@@ -1075,19 +1086,20 @@ public boolean remove(@CheckForNull @UnknownSignedness Object object) {
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable EntrySet<E> this) {
       multiset().clear();
     }
   }
 
   /** An implementation of {@link Multiset#iterator}. */
-  static <E extends @Nullable Object> Iterator<E> iteratorImpl(Multiset<E> multiset) {
+  static <E extends @Nullable @Readonly Object> Iterator<E> iteratorImpl(@Readonly Multiset<E> multiset) {
     return new MultisetIteratorImpl<E>(multiset, multiset.entrySet().iterator());
   }
 
-  static final class MultisetIteratorImpl<E extends @Nullable Object> implements Iterator<E> {
+  @ReceiverDependentMutable
+  static final class MultisetIteratorImpl<E extends @Nullable @Readonly Object> implements Iterator<E> {
     private final Multiset<E> multiset;
-    private final Iterator<Entry<E>> entryIterator;
+    private final Iterator<@Readonly Entry<E>> entryIterator;
     @CheckForNull private Entry<E> currentEntry;
 
     /** Count of subsequent elements equal to current element */
@@ -1098,19 +1110,19 @@ static final class MultisetIteratorImpl<E extends @Nullable Object> implements I
 
     private boolean canRemove;
 
-    MultisetIteratorImpl(Multiset<E> multiset, Iterator<Entry<E>> entryIterator) {
+    MultisetIteratorImpl(@ReceiverDependentMutable Multiset<E> multiset, @ReceiverDependentMutable Iterator<@Readonly Entry<E>> entryIterator) {
       this.multiset = multiset;
       this.entryIterator = entryIterator;
     }
 
     @Override
-    public boolean hasNext() {
+    public boolean hasNext(@Readonly MultisetIteratorImpl<E> this) {
       return laterCount > 0 || entryIterator.hasNext();
     }
 
     @Override
     @ParametricNullness
-    public E next() {
+    public E next(@Mutable MultisetIteratorImpl<E> this) {
       if (!hasNext()) {
         throw new NoSuchElementException();
       }
@@ -1128,7 +1140,7 @@ public E next() {
     }
 
     @Override
-    public void remove() {
+    public void remove(@Mutable MultisetIteratorImpl<E> this) {
       checkRemove(canRemove);
       if (totalCount == 1) {
         entryIterator.remove();
@@ -1144,7 +1156,7 @@ public void remove() {
     }
   }
 
-  static <E extends @Nullable Object> Spliterator<E> spliteratorImpl(Multiset<E> multiset) {
+  static <E extends @Nullable @Readonly Object> Spliterator<E> spliteratorImpl(Multiset<E> multiset) {
     Spliterator<Entry<E>> entrySpliterator = multiset.entrySet().spliterator();
     return CollectSpliterators.flatMap(
         entrySpliterator,
@@ -1156,7 +1168,7 @@ public void remove() {
   }
 
   /** An implementation of {@link Multiset#size}. */
-  static int linearTimeSizeImpl(Multiset<?> multiset) {
+  static int linearTimeSizeImpl(@Readonly Multiset<?> multiset) {
     long size = 0;
     for (Entry<?> entry : multiset.entrySet()) {
       size += entry.getCount();
@@ -1165,7 +1177,7 @@ static int linearTimeSizeImpl(Multiset<?> multiset) {
   }
 
   /** Used to avoid http://bugs.sun.com/view_bug.do?bug_id=6558557 */
-  static <T extends @Nullable Object> Multiset<T> cast(Iterable<T> iterable) {
+  static <T extends @Nullable @Readonly Object> Multiset<T> cast(Iterable<T> iterable) {
     return (Multiset<T>) iterable;
   }
 
@@ -1182,6 +1194,7 @@ public static <E> ImmutableMultiset<E> copyHighestCountFirst(Multiset<E> multise
     return ImmutableMultiset.copyFromEntries(Arrays.asList(entries));
   }
 
+  @Immutable
   private static final class DecreasingCount implements Comparator<Entry<?>> {
     static final DecreasingCount INSTANCE = new DecreasingCount();
 
@@ -1195,25 +1208,26 @@ public int compare(Entry<?> entry1, Entry<?> entry2) {
    * An {@link AbstractMultiset} with additional default implementations, some of them linear-time
    * implementations in terms of {@code elementSet} and {@code entrySet}.
    */
-  private abstract static class ViewMultiset<E extends @Nullable Object>
+  @ReceiverDependentMutable
+  private abstract static class ViewMultiset<E extends @Nullable @Readonly Object>
       extends AbstractMultiset<E> {
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly ViewMultiset<E> this) {
       return linearTimeSizeImpl(this);
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable ViewMultiset<E> this) {
       elementSet().clear();
     }
 
     @Override
-    public Iterator<E> iterator() {
+    public Iterator<E> iterator(@Readonly ViewMultiset<E> this) {
       return iteratorImpl(this);
     }
 
     @Override
-    int distinctElements() {
+    int distinctElements(@Readonly ViewMultiset<E> this) {
       return elementSet().size();
     }
   }
diff --git a/guava/src/com/google/common/collect/NaturalOrdering.java b/guava/src/com/google/common/collect/NaturalOrdering.java
index 20af68fae52f..0f3503a89a38 100644
--- a/guava/src/com/google/common/collect/NaturalOrdering.java
+++ b/guava/src/com/google/common/collect/NaturalOrdering.java
@@ -23,48 +23,49 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /** An ordering that uses the natural order of the values. */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true)
 @SuppressWarnings({"unchecked", "rawtypes"}) // TODO(kevinb): the right way to explain this??
 @ElementTypesAreNonnullByDefault
-final class NaturalOrdering extends Ordering<Comparable<?>> implements Serializable {
+final class NaturalOrdering extends Ordering<@Readonly Comparable<?>> implements Serializable {
   static final NaturalOrdering INSTANCE = new NaturalOrdering();
 
-  @CheckForNull private transient Ordering<@Nullable Comparable<?>> nullsFirst;
-  @CheckForNull private transient Ordering<@Nullable Comparable<?>> nullsLast;
+  @CheckForNull private transient Ordering<@Nullable @Readonly Comparable<?>> nullsFirst;
+  @CheckForNull private transient Ordering<@Nullable @Readonly Comparable<?>> nullsLast;
 
   @Pure
   @Override
-  public int compare(Comparable<?> left, Comparable<?> right) {
+  public int compare(@Readonly Comparable<?> left, @Readonly Comparable<?> right) {
     checkNotNull(left); // for GWT
     checkNotNull(right);
-    return ((Comparable<Object>) left).compareTo(right);
+    return ((Comparable<@Readonly Object>) left).compareTo(right);
   }
 
   @Override
-  public <S extends Comparable<?>> Ordering<@Nullable S> nullsFirst() {
-    Ordering<@Nullable Comparable<?>> result = nullsFirst;
+  public <S extends @Readonly Comparable<?>> Ordering<@Nullable S> nullsFirst() {
+    Ordering<@Nullable @Readonly Comparable<?>> result = nullsFirst;
     if (result == null) {
-      result = nullsFirst = super.<Comparable<?>>nullsFirst();
+      result = nullsFirst = super.<@Readonly Comparable<?>>nullsFirst();
     }
     return (Ordering<@Nullable S>) result;
   }
 
   @Override
-  public <S extends Comparable<?>> Ordering<@Nullable S> nullsLast() {
-    Ordering<@Nullable Comparable<?>> result = nullsLast;
+  public <S extends @Readonly Comparable<?>> Ordering<@Nullable S> nullsLast() {
+    Ordering<@Nullable @Readonly Comparable<?>> result = nullsLast;
     if (result == null) {
-      result = nullsLast = super.<Comparable<?>>nullsLast();
+      result = nullsLast = super.<@Readonly Comparable<?>>nullsLast();
     }
     return (Ordering<@Nullable S>) result;
   }
 
   @Override
-  public <S extends Comparable<?>> Ordering<S> reverse() {
+  public <S extends @Readonly Comparable<?>> Ordering<S> reverse() {
     return (Ordering<S>) ReverseNaturalOrdering.INSTANCE;
   }
 
diff --git a/guava/src/com/google/common/collect/NullnessCasts.java b/guava/src/com/google/common/collect/NullnessCasts.java
index 4f894dbd3139..03f628fabac9 100644
--- a/guava/src/com/google/common/collect/NullnessCasts.java
+++ b/guava/src/com/google/common/collect/NullnessCasts.java
@@ -17,6 +17,7 @@
 import com.google.common.annotations.GwtCompatible;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /** A utility method to perform unchecked casts to suppress errors produced by nullness analyses. */
 @GwtCompatible
@@ -52,7 +53,7 @@ final class NullnessCasts {
    */
   @ParametricNullness
   @SuppressWarnings("nullness")
-  static <T extends @Nullable Object> T uncheckedCastNullableTToT(@CheckForNull T t) {
+  static <T extends @Nullable @Readonly Object> T uncheckedCastNullableTToT(@CheckForNull T t) {
     return t;
   }
 
@@ -60,7 +61,7 @@ final class NullnessCasts {
   @SuppressWarnings({"nullness", "TypeParameterUnusedInFormals", "ReturnMissingNullable"})
   // The warnings are legitimate. Each time we use this method, we document why.
   @ParametricNullness
-  static <T extends @Nullable Object> T unsafeNull() {
+  static <T extends @Nullable @Readonly Object> T unsafeNull() {
     return null;
   }
 
diff --git a/guava/src/com/google/common/collect/NullsFirstOrdering.java b/guava/src/com/google/common/collect/NullsFirstOrdering.java
index 52e968a8fd13..4b2d387f22a1 100644
--- a/guava/src/com/google/common/collect/NullsFirstOrdering.java
+++ b/guava/src/com/google/common/collect/NullsFirstOrdering.java
@@ -20,15 +20,16 @@
 import java.io.Serializable;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /** An ordering that treats {@code null} as less than all other values. */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-final class NullsFirstOrdering<T extends @Nullable Object> extends Ordering<@Nullable T>
+final class NullsFirstOrdering<T extends @Nullable @Readonly Object> extends Ordering<@Nullable T>
     implements Serializable {
   final Ordering<? super T> ordering;
 
@@ -71,7 +72,7 @@ public int compare(@CheckForNull T left, @CheckForNull T right) {
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@CheckForNull @Readonly Object object) {
     if (object == this) {
       return true;
     }
diff --git a/guava/src/com/google/common/collect/NullsLastOrdering.java b/guava/src/com/google/common/collect/NullsLastOrdering.java
index d2f3cce7220f..c08df897f577 100644
--- a/guava/src/com/google/common/collect/NullsLastOrdering.java
+++ b/guava/src/com/google/common/collect/NullsLastOrdering.java
@@ -20,15 +20,16 @@
 import java.io.Serializable;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /** An ordering that treats {@code null} as greater than all other values. */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-final class NullsLastOrdering<T extends @Nullable Object> extends Ordering<@Nullable T>
+final class NullsLastOrdering<T extends @Nullable @Readonly Object> extends Ordering<@Nullable T>
     implements Serializable {
   final Ordering<? super T> ordering;
 
@@ -71,7 +72,7 @@ public int compare(@CheckForNull T left, @CheckForNull T right) {
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@CheckForNull @Readonly Object object) {
     if (object == this) {
       return true;
     }
diff --git a/guava/src/com/google/common/collect/ObjectArrays.java b/guava/src/com/google/common/collect/ObjectArrays.java
index bf5b40fcb717..8edcef0ba35b 100644
--- a/guava/src/com/google/common/collect/ObjectArrays.java
+++ b/guava/src/com/google/common/collect/ObjectArrays.java
@@ -25,6 +25,8 @@
 import java.util.Arrays;
 import java.util.Collection;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -59,7 +61,7 @@ public static <T> T[] newArray(Class<T> type, int length) {
    * @param reference any array of the desired type
    * @param length the length of the new array
    */
-  public static <T extends @Nullable Object> T[] newArray(T[] reference, int length) {
+  public static <T extends @Nullable @Readonly Object> T @Mutable [] newArray(T @Readonly [] reference, int length) {
     return Platform.newArray(reference, length);
   }
 
@@ -86,7 +88,7 @@ public static <T> T[] concat(T[] first, T[] second, Class<T> type) {
    * @return an array whose size is one larger than {@code array}, with {@code element} occupying
    *     the first position, and the elements of {@code array} occupying the remaining elements.
    */
-  public static <T extends @Nullable Object> T[] concat(@ParametricNullness T element, T[] array) {
+  public static <T extends @Nullable @Readonly Object> T[] concat(@ParametricNullness T element, T[] array) {
     T[] result = newArray(array, array.length + 1);
     result[0] = element;
     System.arraycopy(array, 0, result, 1, array.length);
@@ -101,7 +103,7 @@ public static <T> T[] concat(T[] first, T[] second, Class<T> type) {
    * @return an array whose size is one larger than {@code array}, with the same contents as {@code
    *     array}, plus {@code element} occupying the last position.
    */
-  public static <T extends @Nullable Object> T[] concat(T[] array, @ParametricNullness T element) {
+  public static <T extends @Nullable @Readonly Object> T[] concat(T[] array, @ParametricNullness T element) {
     T[] result = Arrays.copyOf(array, array.length + 1);
     result[array.length] = element;
     return result;
@@ -128,7 +130,7 @@ public static <T> T[] concat(T[] first, T[] second, Class<T> type) {
    * @throws ArrayStoreException if the runtime type of the specified array is not a supertype of
    *     the runtime type of every element in the specified collection
    */
-  static <T extends @Nullable Object> T[] toArrayImpl(Collection<?> c, T[] array) {
+  static <T extends @Nullable @Readonly Object> T @Mutable [] toArrayImpl(@Readonly Collection<?> c, T @Readonly [] array) {
     int size = c.size();
     if (array.length < size) {
       array = newArray(array, size);
@@ -152,7 +154,7 @@ public static <T> T[] concat(T[] first, T[] second, Class<T> type) {
    * collection is set to {@code null}. This is useful in determining the length of the collection
    * <i>only</i> if the caller knows that the collection does not contain any null elements.
    */
-  static <T extends @Nullable Object> T[] toArrayImpl(
+  static <T extends @Nullable @Readonly Object> T[] toArrayImpl(
       @Nullable Object[] src, int offset, int len, T[] dst) {
     checkPositionIndexes(offset, offset + len, src.length);
     if (dst.length < len) {
@@ -196,7 +198,7 @@ public static <T> T[] concat(T[] first, T[] second, Class<T> type) {
   }
 
   @CanIgnoreReturnValue
-  private static @Nullable Object[] fillArray(Iterable<?> elements, @Nullable Object[] array) {
+  private static @Nullable Object [] fillArray(Iterable<?> elements, @Nullable Object [] array) {
     int i = 0;
     for (Object element : elements) {
       array[i++] = element;
@@ -205,19 +207,19 @@ public static <T> T[] concat(T[] first, T[] second, Class<T> type) {
   }
 
   /** Swaps {@code array[i]} with {@code array[j]}. */
-  static void swap(Object[] array, int i, int j) {
+  static void swap(@Readonly Object @Mutable [] array, int i, int j) {
     Object temp = array[i];
     array[i] = array[j];
     array[j] = temp;
   }
 
   @CanIgnoreReturnValue
-  static @PolySigned Object[] checkElementsNotNull(@PolySigned Object... array) {
+  static @PolySigned Object[] checkElementsNotNull(@PolySigned @Readonly Object @Readonly ... array) {
     return checkElementsNotNull(array, array.length);
   }
 
   @CanIgnoreReturnValue
-  static @PolySigned Object[] checkElementsNotNull(@PolySigned Object[] array, int length) {
+  static @PolySigned Object[] checkElementsNotNull(@PolySigned @Readonly Object @Readonly [] array, int length) {
     for (int i = 0; i < length; i++) {
       checkElementNotNull(array[i], i);
     }
@@ -227,7 +229,7 @@ static void swap(Object[] array, int i, int j) {
   // We do this instead of Preconditions.checkNotNull to save boxing and array
   // creation cost.
   @CanIgnoreReturnValue
-  static @PolySigned Object checkElementNotNull(@PolySigned Object element, int index) {
+  static @PolySigned Object checkElementNotNull(@PolySigned @Readonly Object element, int index) {
     if (element == null) {
       throw new NullPointerException("at index " + index);
     }
diff --git a/guava/src/com/google/common/collect/Ordering.java b/guava/src/com/google/common/collect/Ordering.java
index 4085067fb2d9..825183380429 100644
--- a/guava/src/com/google/common/collect/Ordering.java
+++ b/guava/src/com/google/common/collect/Ordering.java
@@ -40,8 +40,12 @@
 import java.util.concurrent.atomic.AtomicInteger;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * A comparator, with additional methods to support common operations. This is an "enriched" version
@@ -146,10 +150,10 @@
  * @author Kevin Bourrillion
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class Ordering<T extends @Nullable Object> implements Comparator<T> {
+public abstract class Ordering<T extends @Nullable @Readonly Object> implements Comparator<T> {
   // Natural order
 
   /**
@@ -163,7 +167,7 @@ public abstract class Ordering<T extends @Nullable Object> implements Comparator
    */
   @GwtCompatible(serializable = true)
   @SuppressWarnings("unchecked") // TODO(kevinb): right way to explain this??
-  public static <C extends Comparable> Ordering<C> natural() {
+  public static <C extends @Readonly Comparable> Ordering<C> natural() {
     return (Ordering<C>) NaturalOrdering.INSTANCE;
   }
 
@@ -183,7 +187,7 @@ public static <C extends Comparable> Ordering<C> natural() {
    *     wraps that comparator
    */
   @GwtCompatible(serializable = true)
-  public static <T extends @Nullable Object> Ordering<T> from(Comparator<T> comparator) {
+  public static <T extends @Nullable @Readonly Object> Ordering<T> from(Comparator<T> comparator) {
     return (comparator instanceof Ordering)
         ? (Ordering<T>) comparator
         : new ComparatorOrdering<T>(comparator);
@@ -196,7 +200,7 @@ public static <C extends Comparable> Ordering<C> natural() {
    */
   @GwtCompatible(serializable = true)
   @Deprecated
-  public static <T extends @Nullable Object> Ordering<T> from(Ordering<T> ordering) {
+  public static <T extends @Nullable @Readonly Object> Ordering<T> from(Ordering<T> ordering) {
     return checkNotNull(ordering);
   }
 
@@ -221,7 +225,8 @@ public static <C extends Comparable> Ordering<C> natural() {
    */
   // TODO(kevinb): provide replacement
   @GwtCompatible(serializable = true)
-  public static <T> Ordering<T> explicit(List<T> valuesInOrder) {
+  @CFComment("T is Immutable because ExplicitOrdering requires an immutable T")
+  public static <T extends @Immutable Object> Ordering<T> explicit(List<T> valuesInOrder) {
     return new ExplicitOrdering<T>(valuesInOrder);
   }
 
@@ -283,7 +288,7 @@ public static <T> Ordering<T> explicit(T leastValue, T... remainingValuesInOrder
    */
   @GwtCompatible(serializable = true)
   @SuppressWarnings("unchecked")
-  public static Ordering<@Nullable Object> allEqual() {
+  public static Ordering<@Nullable @Readonly Object> allEqual() {
     return AllEqualOrdering.INSTANCE;
   }
 
@@ -296,7 +301,7 @@ public static <T> Ordering<T> explicit(T leastValue, T... remainingValuesInOrder
    * <p><b>Java 8 users:</b> Use {@code Comparator.comparing(Object::toString)} instead.
    */
   @GwtCompatible(serializable = true)
-  public static Ordering<Object> usingToString() {
+  public static Ordering<@Readonly Object> usingToString() {
     return UsingToStringOrdering.INSTANCE;
   }
 
@@ -316,22 +321,22 @@ public static Ordering<Object> usingToString() {
    * @since 2.0
    */
   // TODO(kevinb): copy to Comparators, etc.
-  public static Ordering<@Nullable Object> arbitrary() {
+  public static Ordering<@Nullable @Readonly Object> arbitrary() {
     return ArbitraryOrderingHolder.ARBITRARY_ORDERING;
   }
 
   private static class ArbitraryOrderingHolder {
-    static final Ordering<@Nullable Object> ARBITRARY_ORDERING = new ArbitraryOrdering();
+    static final Ordering<@Nullable @Readonly Object> ARBITRARY_ORDERING = new ArbitraryOrdering();
   }
 
   @VisibleForTesting
-  static class ArbitraryOrdering extends Ordering<@Nullable Object> {
+  static class ArbitraryOrdering extends Ordering<@Nullable @Readonly Object> {
 
     private final AtomicInteger counter = new AtomicInteger(0);
-    private final ConcurrentMap<Object, Integer> uids =
+    private final ConcurrentMap<@Immutable Object, Integer> uids =
         Platform.tryWeakKeys(new MapMaker()).makeMap();
 
-    private Integer getUid(Object obj) {
+    private Integer getUid(@Readonly Object obj) {
       Integer uid = uids.get(obj);
       if (uid == null) {
         // One or more integer values could be skipped in the event of a race
@@ -347,7 +352,7 @@ private Integer getUid(Object obj) {
     }
 
     @Override
-    public int compare(@CheckForNull Object left, @CheckForNull Object right) {
+    public int compare(@CheckForNull @Readonly Object left, @CheckForNull @Readonly Object right) {
       if (left == right) {
         return 0;
       } else if (left == null) {
@@ -382,7 +387,7 @@ public String toString() {
      * recognize that the call is 1-morphic and should still be willing to
      * inline it if necessary.
      */
-    int identityHashCode(Object object) {
+    int identityHashCode(@Readonly Object object) {
       return System.identityHashCode(object);
     }
   }
@@ -450,11 +455,11 @@ public <S extends T> Ordering<S> reverse() {
    * can omit the comparator if it is the natural order).
    */
   @GwtCompatible(serializable = true)
-  public <F extends @Nullable Object> Ordering<F> onResultOf(Function<F, ? extends T> function) {
+  public <F extends @Nullable @Readonly Object> Ordering<F> onResultOf(Function<F, ? extends T> function) {
     return new ByFunctionOrdering<>(function, this);
   }
 
-  <T2 extends T> Ordering<Entry<T2, ?>> onKeys() {
+  <T2 extends @Immutable T> Ordering<Entry<T2, ?>> onKeys() {
     return onResultOf(Maps.<T2>keyFunction());
   }
 
@@ -496,7 +501,7 @@ public <U extends T> Ordering<U> compound(Comparator<? super U> secondaryCompara
    * @param comparators the comparators to try in order
    */
   @GwtCompatible(serializable = true)
-  public static <T extends @Nullable Object> Ordering<T> compound(
+  public static <T extends @Nullable @Readonly Object> Ordering<T> compound(
       Iterable<? extends Comparator<? super T>> comparators) {
     return new CompoundOrdering<T>(comparators);
   }
@@ -949,10 +954,11 @@ public int binarySearch(
    * Extending {@link ClassCastException} may seem odd, but it is required.
    */
   @VisibleForTesting
+  @ReceiverDependentMutable
   static class IncomparableValueException extends ClassCastException {
     final Object value;
 
-    IncomparableValueException(Object value) {
+    IncomparableValueException(@ReceiverDependentMutable Object value) {
       super("Cannot compare value: " + value);
       this.value = value;
     }
diff --git a/guava/src/com/google/common/collect/PeekingIterator.java b/guava/src/com/google/common/collect/PeekingIterator.java
index 1e82ddbf942e..fdc6a983283a 100644
--- a/guava/src/com/google/common/collect/PeekingIterator.java
+++ b/guava/src/com/google/common/collect/PeekingIterator.java
@@ -22,6 +22,9 @@
 import java.util.Iterator;
 import java.util.NoSuchElementException;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -36,9 +39,10 @@
  */
 @DoNotMock("Use Iterators.peekingIterator")
 @GwtCompatible
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @ElementTypesAreNonnullByDefault
-public interface PeekingIterator<E extends @Nullable Object> extends Iterator<E> {
+@ReceiverDependentMutable
+public interface PeekingIterator<E extends @Nullable @Readonly Object> extends Iterator<E> {
   /**
    * Returns the next element in the iteration, without advancing the iteration.
    *
@@ -49,7 +53,7 @@ public interface PeekingIterator<E extends @Nullable Object> extends Iterator<E>
    *     #hasNext()}
    */
   @ParametricNullness
-  E peek();
+  E peek(@Readonly PeekingIterator<E> this);
 
   /**
    * {@inheritDoc}
@@ -60,7 +64,7 @@ public interface PeekingIterator<E extends @Nullable Object> extends Iterator<E>
   @CanIgnoreReturnValue
   @Override
   @ParametricNullness
-  E next();
+  E next(@Mutable PeekingIterator<E> this);
 
   /**
    * {@inheritDoc}
@@ -73,5 +77,5 @@ public interface PeekingIterator<E extends @Nullable Object> extends Iterator<E>
    *     (optional)
    */
   @Override
-  void remove();
+  void remove(@Mutable PeekingIterator<E> this);
 }
diff --git a/guava/src/com/google/common/collect/Platform.java b/guava/src/com/google/common/collect/Platform.java
index 8ee4b651cd5c..61b5d2534924 100644
--- a/guava/src/com/google/common/collect/Platform.java
+++ b/guava/src/com/google/common/collect/Platform.java
@@ -23,6 +23,9 @@
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -38,7 +41,7 @@ final class Platform {
       java.util.logging.Logger.getLogger(Platform.class.getName());
 
   /** Returns the platform preferred implementation of a map based on a hash table. */
-  static <K extends @Nullable Object, V extends @Nullable Object>
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Map<K, V> newHashMapWithExpectedSize(int expectedSize) {
     return Maps.newHashMapWithExpectedSize(expectedSize);
   }
@@ -47,13 +50,13 @@ Map<K, V> newHashMapWithExpectedSize(int expectedSize) {
    * Returns the platform preferred implementation of an insertion ordered map based on a hash
    * table.
    */
-  static <K extends @Nullable Object, V extends @Nullable Object>
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Map<K, V> newLinkedHashMapWithExpectedSize(int expectedSize) {
     return Maps.newLinkedHashMapWithExpectedSize(expectedSize);
   }
 
   /** Returns the platform preferred implementation of a set based on a hash table. */
-  static <E extends @Nullable Object> Set<E> newHashSetWithExpectedSize(int expectedSize) {
+  static <E extends @Nullable @Readonly Object> Set<E> newHashSetWithExpectedSize(int expectedSize) {
     return Sets.newHashSetWithExpectedSize(expectedSize);
   }
 
@@ -66,7 +69,7 @@ static <E> Set<E> newConcurrentHashSet() {
    * Returns the platform preferred implementation of an insertion ordered set based on a hash
    * table.
    */
-  static <E extends @Nullable Object> Set<E> newLinkedHashSetWithExpectedSize(int expectedSize) {
+  static <E extends @Nullable @Readonly Object> Set<E> newLinkedHashSetWithExpectedSize(int expectedSize) {
     return Sets.newLinkedHashSetWithExpectedSize(expectedSize);
   }
 
@@ -74,7 +77,7 @@ static <E> Set<E> newConcurrentHashSet() {
    * Returns the platform preferred map implementation that preserves insertion order when used only
    * for insertions.
    */
-  static <K extends @Nullable Object, V extends @Nullable Object>
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Map<K, V> preservesInsertionOrderOnPutsMap() {
     return Maps.newLinkedHashMap();
   }
@@ -83,7 +86,7 @@ Map<K, V> preservesInsertionOrderOnPutsMap() {
    * Returns the platform preferred set implementation that preserves insertion order when used only
    * for insertions.
    */
-  static <E extends @Nullable Object> Set<E> preservesInsertionOrderOnAddsSet() {
+  static <E extends @Nullable @Readonly Object> Set<E> preservesInsertionOrderOnAddsSet() {
     return Sets.newLinkedHashSet();
   }
 
@@ -99,7 +102,7 @@ Map<K, V> preservesInsertionOrderOnPutsMap() {
    * about arrays for now, as they're a mess. (We previously discussed this in the review of
    * ObjectArrays, which is the main caller of this method.)
    */
-  static <T extends @Nullable Object> T[] newArray(T[] reference, int length) {
+  static <T extends @Nullable @Readonly Object> T[] newArray(T[] reference, int length) {
     Class<?> type = reference.getClass().getComponentType();
 
     // the cast is safe because
@@ -119,7 +122,7 @@ Map<K, V> preservesInsertionOrderOnPutsMap() {
    * - https://github.com/jspecify/jdk/commit/71d826792b8c7ef95d492c50a274deab938f2552
    */
   @SuppressWarnings("nullness")
-  static <T extends @Nullable Object> T[] copy(Object[] source, int from, int to, T[] arrayOfType) {
+  static <T extends @Nullable @Readonly Object> T @Mutable [] copy(Object @Readonly [] source, int from, int to, T @Readonly [] arrayOfType) {
     return Arrays.copyOfRange(source, from, to, (Class<? extends T[]>) arrayOfType.getClass());
   }
 
diff --git a/guava/src/com/google/common/collect/Queues.java b/guava/src/com/google/common/collect/Queues.java
index a140102fd6db..d8d3575e878c 100644
--- a/guava/src/com/google/common/collect/Queues.java
+++ b/guava/src/com/google/common/collect/Queues.java
@@ -33,6 +33,8 @@
 import java.util.concurrent.SynchronousQueue;
 import java.util.concurrent.TimeUnit;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * Static utility methods pertaining to {@link Queue} and {@link Deque} instances. Also see this
@@ -438,7 +440,7 @@ public static <E> int drainUninterruptibly(
    * @return a synchronized view of the specified queue
    * @since 14.0
    */
-  public static <E extends @Nullable Object> Queue<E> synchronizedQueue(Queue<E> queue) {
+  public static <E extends @Nullable @Readonly Object> Queue<E> synchronizedQueue(Queue<E> queue) {
     return Synchronized.queue(queue, null);
   }
 
@@ -471,7 +473,7 @@ public static <E> int drainUninterruptibly(
    * @return a synchronized view of the specified deque
    * @since 15.0
    */
-  public static <E extends @Nullable Object> Deque<E> synchronizedDeque(Deque<E> deque) {
+  public static <E extends @Nullable @Readonly Object> Deque<E> synchronizedDeque(Deque<E> deque) {
     return Synchronized.deque(deque, null);
   }
 }
diff --git a/guava/src/com/google/common/collect/Range.java b/guava/src/com/google/common/collect/Range.java
index 661ae742ab18..a1112f1db585 100644
--- a/guava/src/com/google/common/collect/Range.java
+++ b/guava/src/com/google/common/collect/Range.java
@@ -29,6 +29,8 @@
 import java.util.NoSuchElementException;
 import java.util.SortedSet;
 import javax.annotation.CheckForNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -120,7 +122,8 @@
 @GwtCompatible
 @SuppressWarnings("rawtypes")
 @ElementTypesAreNonnullByDefault
-public final class Range<C extends Comparable> extends RangeGwtSerializationDependencies
+@Immutable
+public final class Range<C extends @Readonly Comparable> extends RangeGwtSerializationDependencies
     implements Predicate<C>, Serializable {
 
   static class LowerBoundFn implements Function<Range, Cut> {
@@ -675,7 +678,7 @@ public Range<C> canonical(DiscreteDomain<C> domain) {
    * {@code [3..3)}, {@code (3..3]}, {@code (4..4]} are all unequal.
    */
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@CheckForNull @Readonly Object object) {
     if (object instanceof Range) {
       Range<?> other = (Range<?>) object;
       return lowerBound.equals(other.lowerBound) && upperBound.equals(other.upperBound);
@@ -715,7 +718,7 @@ Object readResolve() {
   }
 
   @SuppressWarnings("unchecked") // this method may throw CCE
-  static int compareOrThrow(Comparable left, Comparable right) {
+  static int compareOrThrow(@Readonly Comparable left, @Readonly Comparable right) {
     return left.compareTo(right);
   }
 
diff --git a/guava/src/com/google/common/collect/RangeGwtSerializationDependencies.java b/guava/src/com/google/common/collect/RangeGwtSerializationDependencies.java
index 222c1285fb4b..bf48f85e0269 100644
--- a/guava/src/com/google/common/collect/RangeGwtSerializationDependencies.java
+++ b/guava/src/com/google/common/collect/RangeGwtSerializationDependencies.java
@@ -19,6 +19,9 @@
 import com.google.common.annotations.GwtCompatible;
 import java.io.Serializable;
 
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+
 /**
  * A dummy superclass to support GWT serialization of the element type of a {@link Range}. The GWT
  * supersource for this class contains a field of type {@code C}.
@@ -29,4 +32,5 @@
  * <p>TODO(cpovirk): Consider applying this subclass approach to our other types.
  */
 @GwtCompatible(emulated = true)
-abstract class RangeGwtSerializationDependencies<C extends Comparable> implements Serializable {}
+@Immutable
+abstract class RangeGwtSerializationDependencies<C extends @Readonly Comparable> implements Serializable {}
diff --git a/guava/src/com/google/common/collect/RangeMap.java b/guava/src/com/google/common/collect/RangeMap.java
index 69d6edcb2fcb..de5405b0a5c1 100644
--- a/guava/src/com/google/common/collect/RangeMap.java
+++ b/guava/src/com/google/common/collect/RangeMap.java
@@ -26,7 +26,13 @@
 import java.util.function.BiFunction;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A mapping from disjoint nonempty ranges to non-null values. Queries look up the value associated
@@ -38,11 +44,13 @@
  * @author Louis Wasserman
  * @since 14.0
  */
+@AnnotatedFor("pico")
 @Beta
 @DoNotMock("Use ImmutableRangeMap or TreeRangeMap")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-public interface RangeMap<K extends Comparable, V> {
+@ReceiverDependentMutable
+public interface RangeMap<K extends @Immutable Comparable, V> {
   /*
    * TODO(cpovirk): These docs sometimes say "map" and sometimes say "range map." Pick one, or at
    * least decide on a policy for when to use which.
@@ -55,14 +63,14 @@ public interface RangeMap<K extends Comparable, V> {
    * associated with that range is returned.
    */
   @CheckForNull
-  V get(K key);
+  V get(@Readonly RangeMap<K, V> this, K key);
 
   /**
    * Returns the range containing this key and its associated value, if such a range is present in
    * the range map, or {@code null} otherwise.
    */
   @CheckForNull
-  Entry<Range<K>, V> getEntry(K key);
+  @PolyMutable Entry<Range<K>, V> getEntry(@PolyMutable RangeMap<K, V> this, K key);
 
   /**
    * Returns the minimal range {@linkplain Range#encloses(Range) enclosing} the ranges in this
@@ -70,7 +78,7 @@ public interface RangeMap<K extends Comparable, V> {
    *
    * @throws NoSuchElementException if this range map is empty
    */
-  Range<K> span();
+  Range<K> span(@Readonly RangeMap<K, V> this);
 
   /**
    * Maps a range to a specified value (optional operation).
@@ -81,7 +89,7 @@ public interface RangeMap<K extends Comparable, V> {
    *
    * <p>If {@code range} {@linkplain Range#isEmpty() is empty}, then this is a no-op.
    */
-  void put(Range<K> range, V value);
+  void put(@Mutable RangeMap<K, V> this, Range<K> range, V value);
 
   /**
    * Maps a range to a specified value, coalescing this range with any existing ranges with the same
@@ -101,13 +109,13 @@ public interface RangeMap<K extends Comparable, V> {
    *
    * @since 22.0
    */
-  void putCoalescing(Range<K> range, V value);
+  void putCoalescing(@Mutable RangeMap<K, V> this, Range<K> range, V value);
 
   /** Puts all the associations from {@code rangeMap} into this range map (optional operation). */
-  void putAll(RangeMap<K, V> rangeMap);
+  void putAll(@Mutable RangeMap<K, V> this, @Readonly RangeMap<K, V> rangeMap);
 
   /** Removes all associations from this range map (optional operation). */
-  void clear();
+  void clear(@Mutable RangeMap<K, V> this);
 
   /**
    * Removes all associations from this range map in the specified range (optional operation).
@@ -116,7 +124,7 @@ public interface RangeMap<K extends Comparable, V> {
    * before and after a call to {@code remove(range)}. If {@code range.contains(k)}, then after a
    * call to {@code remove(range)}, {@code get(k)} will return {@code null}.
    */
-  void remove(Range<K> range);
+  void remove(@Mutable RangeMap<K, V> this, Range<K> range);
 
   /**
    * Merges a value into a part of the map by applying a remapping function.
@@ -137,6 +145,7 @@ public interface RangeMap<K extends Comparable, V> {
    * @since 28.1
    */
   void merge(
+          @Mutable RangeMap<K, V> this,
       Range<K> range,
       @CheckForNull V value,
       BiFunction<? super V, ? super @Nullable V, ? extends @Nullable V> remappingFunction);
@@ -150,7 +159,7 @@ void merge(
    *
    * <p>It is guaranteed that no empty ranges will be in the returned {@code Map}.
    */
-  Map<Range<K>, V> asMapOfRanges();
+  @PolyMutable Map<Range<K>, V> asMapOfRanges(@PolyMutable RangeMap<K, V> this);
 
   /**
    * Returns a view of this range map as an unmodifiable {@code Map<Range<K>, V>}. Modifications to
@@ -163,7 +172,7 @@ void merge(
    *
    * @since 19.0
    */
-  Map<Range<K>, V> asDescendingMapOfRanges();
+  @PolyMutable Map<Range<K>, V> asDescendingMapOfRanges(@PolyMutable RangeMap<K, V> this);
 
   /**
    * Returns a view of the part of this range map that intersects with {@code range}.
@@ -179,20 +188,20 @@ void merge(
    * insert a range not {@linkplain Range#encloses(Range) enclosed} by {@code range}.
    */
   // TODO(cpovirk): Consider documenting that IAE on the various methods that can throw it.
-  RangeMap<K, V> subRangeMap(Range<K> range);
+  @PolyMutable RangeMap<K, V> subRangeMap(@PolyMutable RangeMap<K, V> this, Range<K> range);
 
   /**
    * Returns {@code true} if {@code obj} is another {@code RangeMap} that has an equivalent {@link
    * #asMapOfRanges()}.
    */
   @Override
-  boolean equals(@CheckForNull Object o);
+  boolean equals(@Readonly RangeMap<K, V> this, @CheckForNull @Readonly Object o);
 
   /** Returns {@code asMapOfRanges().hashCode()}. */
   @Override
-  int hashCode(@UnknownSignedness RangeMap<K, V> this);
+  int hashCode(@UnknownSignedness @Readonly RangeMap<K, V> this);
 
   /** Returns a readable string representation of this range map. */
   @Override
-  String toString();
+  String toString(@Readonly RangeMap<K, V> this);
 }
diff --git a/guava/src/com/google/common/collect/RangeSet.java b/guava/src/com/google/common/collect/RangeSet.java
index e420003ea3ce..841537e447a4 100644
--- a/guava/src/com/google/common/collect/RangeSet.java
+++ b/guava/src/com/google/common/collect/RangeSet.java
@@ -20,7 +20,12 @@
 import java.util.NoSuchElementException;
 import java.util.Set;
 import javax.annotation.CheckForNull;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A set comprising zero or more {@linkplain Range#isEmpty nonempty}, {@linkplain
@@ -50,24 +55,26 @@
  * @author Louis Wasserman
  * @since 14.0
  */
+@AnnotatedFor("pico")
 @Beta
 @DoNotMock("Use ImmutableRangeSet or TreeRangeSet")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-public interface RangeSet<C extends Comparable> {
+@ReceiverDependentMutable
+public interface RangeSet<C extends @Readonly Comparable> {
   // TODO(lowasser): consider adding default implementations of some of these methods
 
   // Query methods
 
   /** Determines whether any of this range set's member ranges contains {@code value}. */
-  boolean contains(C value);
+  boolean contains(@Readonly RangeSet<C> this, C value);
 
   /**
    * Returns the unique range from this range set that {@linkplain Range#contains contains} {@code
    * value}, or {@code null} if this range set does not contain {@code value}.
    */
   @CheckForNull
-  Range<C> rangeContaining(C value);
+  Range<C> rangeContaining(@Readonly RangeSet<C> this, C value);
 
   /**
    * Returns {@code true} if there exists a non-empty range enclosed by both a member range in this
@@ -76,13 +83,13 @@ public interface RangeSet<C extends Comparable> {
    *
    * @since 20.0
    */
-  boolean intersects(Range<C> otherRange);
+  boolean intersects(@Readonly RangeSet<C> this, @Readonly Range<C> otherRange);
 
   /**
    * Returns {@code true} if there exists a member range in this range set which {@linkplain
    * Range#encloses encloses} the specified range.
    */
-  boolean encloses(Range<C> otherRange);
+  boolean encloses(@Readonly RangeSet<C> this, @Readonly Range<C> otherRange);
 
   /**
    * Returns {@code true} if for each member range in {@code other} there exists a member range in
@@ -93,7 +100,7 @@ public interface RangeSet<C extends Comparable> {
    * <p>This is equivalent to checking if this range set {@link #encloses} each of the ranges in
    * {@code other}.
    */
-  boolean enclosesAll(RangeSet<C> other);
+  boolean enclosesAll(@Readonly RangeSet<C> this, @Readonly RangeSet<C> other);
 
   /**
    * Returns {@code true} if for each range in {@code other} there exists a member range in this
@@ -105,7 +112,7 @@ public interface RangeSet<C extends Comparable> {
    *
    * @since 21.0
    */
-  default boolean enclosesAll(Iterable<Range<C>> other) {
+  default boolean enclosesAll(@Readonly RangeSet<C> this, @Readonly Iterable<Range<C>> other) {
     for (Range<C> range : other) {
       if (!encloses(range)) {
         return false;
@@ -115,7 +122,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
   }
 
   /** Returns {@code true} if this range set contains no ranges. */
-  boolean isEmpty();
+  boolean isEmpty(@Readonly RangeSet<C> this);
 
   /**
    * Returns the minimal range which {@linkplain Range#encloses(Range) encloses} all ranges in this
@@ -123,7 +130,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
    *
    * @throws NoSuchElementException if this range set is {@linkplain #isEmpty() empty}
    */
-  Range<C> span();
+  Range<C> span(@Readonly RangeSet<C> this);
 
   // Views
 
@@ -133,7 +140,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
    * Iterable#iterator} method return the ranges in increasing order of lower bound (equivalently,
    * of upper bound).
    */
-  Set<Range<C>> asRanges();
+  @PolyMutable Set<Range<C>> asRanges(@PolyMutable RangeSet<C> this);
 
   /**
    * Returns a descending view of the {@linkplain Range#isConnected disconnected} ranges that make
@@ -143,7 +150,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
    *
    * @since 19.0
    */
-  Set<Range<C>> asDescendingSetOfRanges();
+    @PolyMutable Set<Range<C>> asDescendingSetOfRanges(@PolyMutable RangeSet<C> this);
 
   /**
    * Returns a view of the complement of this {@code RangeSet}.
@@ -151,7 +158,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
    * <p>The returned view supports the {@link #add} operation if this {@code RangeSet} supports
    * {@link #remove}, and vice versa.
    */
-  RangeSet<C> complement();
+  @PolyMutable RangeSet<C> complement(@PolyMutable RangeSet<C> this);
 
   /**
    * Returns a view of the intersection of this {@code RangeSet} with the specified range.
@@ -160,7 +167,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
    * the caveat that an {@link IllegalArgumentException} is thrown on an attempt to {@linkplain
    * #add(Range) add} any range not {@linkplain Range#encloses(Range) enclosed} by {@code view}.
    */
-  RangeSet<C> subRangeSet(Range<C> view);
+  @PolyMutable RangeSet<C> subRangeSet(@PolyMutable RangeSet<C> this, Range<C> view);
 
   // Modification
 
@@ -176,7 +183,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
    * @throws UnsupportedOperationException if this range set does not support the {@code add}
    *     operation
    */
-  void add(Range<C> range);
+  void add(@Mutable RangeSet<C> this, Range<C> range);
 
   /**
    * Removes the specified range from this {@code RangeSet} (optional operation). After this
@@ -187,7 +194,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
    * @throws UnsupportedOperationException if this range set does not support the {@code remove}
    *     operation
    */
-  void remove(Range<C> range);
+  void remove(@Mutable RangeSet<C> this, Range<C> range);
 
   /**
    * Removes all ranges from this {@code RangeSet} (optional operation). After this operation,
@@ -198,7 +205,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
    * @throws UnsupportedOperationException if this range set does not support the {@code clear}
    *     operation
    */
-  void clear();
+  void clear(@Mutable RangeSet<C> this);
 
   /**
    * Adds all of the ranges from the specified range set to this range set (optional operation).
@@ -210,7 +217,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
    * @throws UnsupportedOperationException if this range set does not support the {@code addAll}
    *     operation
    */
-  void addAll(RangeSet<C> other);
+  void addAll(@Mutable RangeSet<C> this, @Readonly RangeSet<C> other);
 
   /**
    * Adds all of the specified ranges to this range set (optional operation). After this operation,
@@ -223,7 +230,7 @@ default boolean enclosesAll(Iterable<Range<C>> other) {
    *     operation
    * @since 21.0
    */
-  default void addAll(Iterable<Range<C>> ranges) {
+  default void addAll(@Mutable RangeSet<C> this, @Readonly Iterable<Range<C>> ranges) {
     for (Range<C> range : ranges) {
       add(range);
     }
@@ -240,7 +247,7 @@ default void addAll(Iterable<Range<C>> ranges) {
    * @throws UnsupportedOperationException if this range set does not support the {@code removeAll}
    *     operation
    */
-  void removeAll(RangeSet<C> other);
+  void removeAll(@Mutable RangeSet<C> this, @Readonly RangeSet<C> other);
 
   /**
    * Removes all of the specified ranges from this range set (optional operation).
@@ -252,7 +259,7 @@ default void addAll(Iterable<Range<C>> ranges) {
    *     operation
    * @since 21.0
    */
-  default void removeAll(Iterable<Range<C>> ranges) {
+  default void removeAll(@Mutable RangeSet<C> this, @Readonly Iterable<Range<C>> ranges) {
     for (Range<C> range : ranges) {
       remove(range);
     }
@@ -265,11 +272,11 @@ default void removeAll(Iterable<Range<C>> ranges) {
    * according to {@link Range#equals(Object)}.
    */
   @Override
-  boolean equals(@CheckForNull Object obj);
+  boolean equals(@Readonly RangeSet<C> this, @CheckForNull @Readonly Object obj);
 
   /** Returns {@code asRanges().hashCode()}. */
   @Override
-  int hashCode(@UnknownSignedness RangeSet<C> this);
+  int hashCode(@UnknownSignedness @Readonly RangeSet<C> this);
 
   /**
    * Returns a readable string representation of this range set. For example, if this {@code
@@ -277,5 +284,5 @@ default void removeAll(Iterable<Range<C>> ranges) {
    * return {@code " [1..3](4..+∞)}"}.
    */
   @Override
-  String toString();
+  String toString(@Readonly RangeSet<C> this);
 }
diff --git a/guava/src/com/google/common/collect/RegularContiguousSet.java b/guava/src/com/google/common/collect/RegularContiguousSet.java
index afd0417697d7..2f3f8101128d 100644
--- a/guava/src/com/google/common/collect/RegularContiguousSet.java
+++ b/guava/src/com/google/common/collect/RegularContiguousSet.java
@@ -26,6 +26,8 @@
 import java.util.Collection;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -36,7 +38,8 @@
 @GwtCompatible(emulated = true)
 @SuppressWarnings("unchecked") // allow ungenerified Comparable types
 @ElementTypesAreNonnullByDefault
-final class RegularContiguousSet<C extends Comparable> extends ContiguousSet<C> {
+@Immutable
+final class RegularContiguousSet<C extends @Readonly Comparable> extends ContiguousSet<C> {
   private final Range<C> range;
 
   RegularContiguousSet(Range<C> range, DiscreteDomain<C> domain) {
diff --git a/guava/src/com/google/common/collect/RegularImmutableAsList.java b/guava/src/com/google/common/collect/RegularImmutableAsList.java
index 7d0eeb863ae9..46f5f9261dd5 100644
--- a/guava/src/com/google/common/collect/RegularImmutableAsList.java
+++ b/guava/src/com/google/common/collect/RegularImmutableAsList.java
@@ -21,6 +21,9 @@
 import java.util.function.Consumer;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * An {@link ImmutableAsList} implementation specialized for when the delegate collection is already
@@ -28,9 +31,11 @@
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
 @SuppressWarnings("serial") // uses writeReplace, not default serialization
 @ElementTypesAreNonnullByDefault
+@Immutable
 class RegularImmutableAsList<E> extends ImmutableAsList<E> {
   private final ImmutableCollection<E> delegate;
   private final ImmutableList<? extends E> delegateList;
@@ -40,7 +45,7 @@ class RegularImmutableAsList<E> extends ImmutableAsList<E> {
     this.delegateList = delegateList;
   }
 
-  RegularImmutableAsList(ImmutableCollection<E> delegate, Object[] array) {
+  RegularImmutableAsList(ImmutableCollection<E> delegate, Object @Readonly [] array) {
     this(delegate, ImmutableList.<E>asImmutableList(array));
   }
 
@@ -68,7 +73,7 @@ public void forEach(Consumer<? super E> action) {
 
   @GwtIncompatible // not present in emulated superclass
   @Override
-  int copyIntoArray(@Nullable Object[] dst, int offset) {
+  int copyIntoArray(@Nullable @Readonly Object[] dst, int offset) {
     return delegateList.copyIntoArray(dst, offset);
   }
 
diff --git a/guava/src/com/google/common/collect/RegularImmutableBiMap.java b/guava/src/com/google/common/collect/RegularImmutableBiMap.java
index d9cf279d9b78..bc60d502bce4 100644
--- a/guava/src/com/google/common/collect/RegularImmutableBiMap.java
+++ b/guava/src/com/google/common/collect/RegularImmutableBiMap.java
@@ -36,6 +36,10 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -44,33 +48,34 @@
  *
  * @author Louis Wasserman
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // uses writeReplace(), not default serialization
 @ElementTypesAreNonnullByDefault
-class RegularImmutableBiMap<K, V> extends ImmutableBiMap<K, V> {
-  static final RegularImmutableBiMap<Object, Object> EMPTY =
+@Immutable
+class RegularImmutableBiMap<K extends @Immutable Object , V extends @Immutable Object> extends ImmutableBiMap<K, V> {
+  static final RegularImmutableBiMap<@Immutable Object, @Immutable Object> EMPTY =
       new RegularImmutableBiMap<>(
-          null, null, (Entry<Object, Object>[]) ImmutableMap.EMPTY_ENTRY_ARRAY, 0, 0);
+          null, null, (Entry<@Immutable Object, @Immutable Object>[]) ImmutableMap.EMPTY_ENTRY_ARRAY, 0, 0);
 
   static final double MAX_LOAD_FACTOR = 1.2;
 
-  @CheckForNull private final transient @Nullable ImmutableMapEntry<K, V>[] keyTable;
-  @CheckForNull private final transient @Nullable ImmutableMapEntry<K, V>[] valueTable;
-  @VisibleForTesting final transient Entry<K, V>[] entries;
+  @CheckForNull private final transient @Nullable ImmutableMapEntry<K, V> @Immutable [] keyTable;
+  @CheckForNull private final transient @Nullable ImmutableMapEntry<K, V> @Immutable [] valueTable;
+  @VisibleForTesting final transient @Immutable Entry<K, V> @Immutable [] entries;
   private final transient int mask;
   private final transient int hashCode;
 
-  static <K, V> ImmutableBiMap<K, V> fromEntries(Entry<K, V>... entries) {
+  static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> fromEntries(@Immutable Entry<K, V>... entries) {
     return fromEntryArray(entries.length, entries);
   }
 
-  static <K, V> ImmutableBiMap<K, V> fromEntryArray(int n, @Nullable Entry<K, V>[] entryArray) {
+  static <K extends @Immutable Object, V extends @Immutable Object> ImmutableBiMap<K, V> fromEntryArray(int n, @Nullable @Immutable Entry<K, V> @Immutable [] entryArray) {
     checkPositionIndex(n, entryArray.length);
     int tableSize = Hashing.closedTableSize(n, MAX_LOAD_FACTOR);
     int mask = tableSize - 1;
-    @Nullable ImmutableMapEntry<K, V>[] keyTable = createEntryArray(tableSize);
-    @Nullable ImmutableMapEntry<K, V>[] valueTable = createEntryArray(tableSize);
+    @Nullable ImmutableMapEntry<K, V> @Mutable [] keyTable = createEntryArray(tableSize);
+    @Nullable ImmutableMapEntry<K, V> @Mutable [] valueTable = createEntryArray(tableSize);
     /*
      * The cast is safe: n==entryArray.length means that we have filled the whole array with Entry
      * instances, in which case it is safe to cast it from an array of nullable entries to an array
@@ -114,9 +119,9 @@ static <K, V> ImmutableBiMap<K, V> fromEntryArray(int n, @Nullable Entry<K, V>[]
   }
 
   private RegularImmutableBiMap(
-      @CheckForNull @Nullable ImmutableMapEntry<K, V>[] keyTable,
-      @CheckForNull @Nullable ImmutableMapEntry<K, V>[] valueTable,
-      Entry<K, V>[] entries,
+      @CheckForNull @Nullable ImmutableMapEntry<K, V> @Immutable  [] keyTable,
+      @CheckForNull @Nullable ImmutableMapEntry<K, V> @Immutable  [] valueTable,
+      @Immutable  Entry<K, V> @Immutable  [] entries,
       int mask,
       int hashCode) {
     this.keyTable = keyTable;
@@ -134,7 +139,7 @@ private RegularImmutableBiMap(
    *     flooding attack
    */
   private static void checkNoConflictInValueBucket(
-      Object value, Entry<?, ?> entry, @CheckForNull ImmutableMapEntry<?, ?> valueBucketHead)
+      @Readonly Object value, @Readonly Entry<?, ?> entry, @CheckForNull ImmutableMapEntry<?, ?> valueBucketHead)
       throws BucketOverflowException {
     int bucketSize = 0;
     for (; valueBucketHead != null; valueBucketHead = valueBucketHead.getNextInValueBucket()) {
@@ -147,14 +152,14 @@ private static void checkNoConflictInValueBucket(
 
   @Override
   @CheckForNull
-  public V get(@CheckForNull @UnknownSignedness Object key) {
+  public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
     return RegularImmutableMap.get(key, keyTable, mask);
   }
 
   @Override
-  ImmutableSet<Entry<K, V>> createEntrySet() {
+  ImmutableSet<@Immutable Entry<K, V>> createEntrySet() {
     return isEmpty()
-        ? ImmutableSet.<Entry<K, V>>of()
+        ? ImmutableSet.<@Immutable Entry<K, V>>of()
         : new ImmutableMapEntrySet.RegularEntrySet<K, V>(this, entries);
   }
 
@@ -177,7 +182,7 @@ boolean isHashCodeFast() {
   }
 
   @Override
-  public int hashCode(@UnknownSignedness RegularImmutableBiMap<K, V> this) {
+  public int hashCode(@UnknownSignedness @Readonly RegularImmutableBiMap<K, V> this) {
     return hashCode;
   }
 
@@ -191,7 +196,7 @@ boolean isPartialView() {
     return entries.length;
   }
 
-  @LazyInit @RetainedWith @CheckForNull private transient ImmutableBiMap<V, K> inverse;
+  @LazyInit @RetainedWith @CheckForNull private transient @Assignable ImmutableBiMap<V, K> inverse;
 
   @Override
   public ImmutableBiMap<V, K> inverse() {
@@ -202,6 +207,7 @@ public ImmutableBiMap<V, K> inverse() {
     return (result == null) ? inverse = new Inverse() : result;
   }
 
+  @Immutable
   private final class Inverse extends ImmutableBiMap<V, K> {
 
     @Override
@@ -222,7 +228,7 @@ public void forEach(BiConsumer<? super V, ? super K> action) {
 
     @Override
     @CheckForNull
-    public K get(@CheckForNull @UnknownSignedness Object value) {
+    public K get(@CheckForNull @UnknownSignedness @Readonly Object value) {
       if (value == null || valueTable == null) {
         return null;
       }
@@ -243,10 +249,11 @@ ImmutableSet<V> createKeySet() {
     }
 
     @Override
-    ImmutableSet<Entry<V, K>> createEntrySet() {
+    ImmutableSet<@Immutable  Entry<V, K>> createEntrySet() {
       return new InverseEntrySet();
     }
 
+    @Immutable
     final class InverseEntrySet extends ImmutableMapEntrySet<V, K> {
       @Override
       ImmutableMap<V, K> map() {
@@ -259,7 +266,7 @@ boolean isHashCodeFast() {
       }
 
       @Override
-      public int hashCode(@UnknownSignedness InverseEntrySet this) {
+      public int hashCode(@UnknownSignedness @Readonly InverseEntrySet this) {
         return hashCode;
       }
 
@@ -301,14 +308,14 @@ Object writeReplace() {
     }
   }
 
-  private static class InverseSerializedForm<K, V> implements Serializable {
+  private static class InverseSerializedForm<K extends @Immutable Object, V extends @Immutable Object> implements Serializable {
     private final ImmutableBiMap<K, V> forward;
 
     InverseSerializedForm(ImmutableBiMap<K, V> forward) {
       this.forward = forward;
     }
 
-    Object readResolve() {
+    @Immutable Object readResolve() {
       return forward.inverse();
     }
 
diff --git a/guava/src/com/google/common/collect/RegularImmutableList.java b/guava/src/com/google/common/collect/RegularImmutableList.java
index 89b5b29705db..06dceaea5082 100644
--- a/guava/src/com/google/common/collect/RegularImmutableList.java
+++ b/guava/src/com/google/common/collect/RegularImmutableList.java
@@ -22,6 +22,8 @@
 import java.util.Spliterators;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -32,16 +34,17 @@
  *
  * @author Kevin Bourrillion
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // uses writeReplace(), not default serialization
 @ElementTypesAreNonnullByDefault
+@Immutable
 class RegularImmutableList<E> extends ImmutableList<E> {
-  static final ImmutableList<Object> EMPTY = new RegularImmutableList<>(new Object[0]);
+  static final ImmutableList<@Readonly Object> EMPTY = new RegularImmutableList<>(new Object[0]);
 
   @VisibleForTesting final transient Object[] array;
 
-  RegularImmutableList(Object[] array) {
+  RegularImmutableList(Object @Immutable [] array) {
     this.array = array;
   }
 
diff --git a/guava/src/com/google/common/collect/RegularImmutableMap.java b/guava/src/com/google/common/collect/RegularImmutableMap.java
index 6ca142d36ee1..96613a1de54a 100644
--- a/guava/src/com/google/common/collect/RegularImmutableMap.java
+++ b/guava/src/com/google/common/collect/RegularImmutableMap.java
@@ -35,6 +35,9 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -47,10 +50,11 @@
  * @author Kevin Bourrillion
  * @author Gregory Kick
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-final class RegularImmutableMap<K, V> extends ImmutableMap<K, V> {
+@Immutable
+final class RegularImmutableMap<K extends @Immutable Object, V> extends ImmutableMap<K, V> {
   @SuppressWarnings("unchecked")
   static final ImmutableMap<Object, Object> EMPTY =
       new RegularImmutableMap<>((Entry<Object, Object>[]) ImmutableMap.EMPTY_ENTRY_ARRAY, null, 0);
@@ -81,7 +85,7 @@ final class RegularImmutableMap<K, V> extends ImmutableMap<K, V> {
   // 'and' with an int to get a table index
   private final transient int mask;
 
-  static <K, V> ImmutableMap<K, V> fromEntries(Entry<K, V>... entries) {
+  static <K extends @Immutable Object , V> ImmutableMap<K, V> fromEntries(@Immutable Entry<K, V>... entries) {
     return fromEntryArray(entries.length, entries, /* throwIfDuplicateKeys= */ true);
   }
 
@@ -90,7 +94,7 @@ static <K, V> ImmutableMap<K, V> fromEntries(Entry<K, V>... entries) {
    * the entries in entryArray with its own entry objects (though they will have the same key/value
    * contents), and may take ownership of entryArray.
    */
-  static <K, V> ImmutableMap<K, V> fromEntryArray(
+  static <K extends @Immutable Object, V> ImmutableMap<K, V> fromEntryArray(
       int n, @Nullable Entry<K, V>[] entryArray, boolean throwIfDuplicateKeys) {
     checkPositionIndex(n, entryArray.length);
     if (n == 0) {
@@ -107,7 +111,7 @@ static <K, V> ImmutableMap<K, V> fromEntryArray(
     }
   }
 
-  private static <K, V> ImmutableMap<K, V> fromEntryArrayCheckingBucketOverflow(
+  private static <K extends @Immutable Object, V> ImmutableMap<K, V> fromEntryArrayCheckingBucketOverflow(
       int n, @Nullable Entry<K, V>[] entryArray, boolean throwIfDuplicateKeys)
       throws BucketOverflowException {
     /*
@@ -186,8 +190,8 @@ private static <K, V> ImmutableMap<K, V> fromEntryArrayCheckingBucketOverflow(
    *     been included in the new entry array.
    * @return an array of {@code newN} entries where no key appears more than once.
    */
-  static <K, V> Entry<K, V>[] removeDuplicates(
-      Entry<K, V>[] entries, int n, int newN, IdentityHashMap<Entry<K, V>, Boolean> duplicates) {
+  static <K extends @Immutable Object, V> Entry<K, V>[] removeDuplicates(
+      Entry<K, V>[] entries, int n, int newN, IdentityHashMap<@Immutable Entry<K, V>, Boolean> duplicates) {
     Entry<K, V>[] newEntries = createEntryArray(newN);
     for (int in = 0, out = 0; in < n; in++) {
       Entry<K, V> entry = entries[in];
@@ -206,14 +210,14 @@ static <K, V> Entry<K, V>[] removeDuplicates(
   }
 
   /** Makes an entry usable internally by a new ImmutableMap without rereading its contents. */
-  static <K, V> ImmutableMapEntry<K, V> makeImmutable(Entry<K, V> entry, K key, V value) {
+  static <K extends @Immutable Object, V> ImmutableMapEntry<K, V> makeImmutable(@Readonly Entry<K, V> entry, K key, V value) {
     boolean reusable =
         entry instanceof ImmutableMapEntry && ((ImmutableMapEntry<K, V>) entry).isReusable();
     return reusable ? (ImmutableMapEntry<K, V>) entry : new ImmutableMapEntry<K, V>(key, value);
   }
 
   /** Makes an entry usable internally by a new ImmutableMap. */
-  static <K, V> ImmutableMapEntry<K, V> makeImmutable(Entry<K, V> entry) {
+  static <K extends @Immutable Object, V> ImmutableMapEntry<K, V> makeImmutable(@Readonly Entry<K, V> entry) {
     return makeImmutable(entry, entry.getKey(), entry.getValue());
   }
 
@@ -236,9 +240,9 @@ private RegularImmutableMap(
    *     flooding attack
    */
   @CanIgnoreReturnValue
-  static <K, V> @Nullable ImmutableMapEntry<K, V> checkNoConflictInKeyBucket(
-      Object key,
-      Object newValue,
+  static <K extends @Immutable Object, V> @Nullable ImmutableMapEntry<K, V> checkNoConflictInKeyBucket(
+          @Readonly Object key,
+          @Readonly Object newValue,
       @CheckForNull ImmutableMapEntry<K, V> keyBucketHead,
       boolean throwIfDuplicateKeys)
       throws BucketOverflowException {
@@ -262,13 +266,13 @@ static class BucketOverflowException extends Exception {}
 
   @Override
   @CheckForNull
-  public V get(@CheckForNull @UnknownSignedness Object key) {
+  public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
     return get(key, table, mask);
   }
 
   @CheckForNull
   static <V> V get(
-      @CheckForNull Object key,
+      @CheckForNull @Readonly Object key,
       @CheckForNull @Nullable ImmutableMapEntry<?, V>[] keyTable,
       int mask) {
     if (key == null || keyTable == null) {
@@ -323,7 +327,8 @@ ImmutableSet<K> createKeySet() {
   }
 
   @GwtCompatible(emulated = true)
-  private static final class KeySet<K> extends IndexedImmutableSet<K> {
+  @Immutable
+  private static final class KeySet<K extends @Immutable Object> extends IndexedImmutableSet<K> {
     private final RegularImmutableMap<K, ?> map;
 
     KeySet(RegularImmutableMap<K, ?> map) {
@@ -353,7 +358,7 @@ boolean isPartialView() {
     // No longer used for new writes, but kept so that old data can still be read.
     @GwtIncompatible // serialization
     @SuppressWarnings("unused")
-    private static class SerializedForm<K> implements Serializable {
+    private static class SerializedForm<K extends @Immutable Object> implements Serializable {
       final ImmutableMap<K, ?> map;
 
       SerializedForm(ImmutableMap<K, ?> map) {
@@ -374,7 +379,8 @@ ImmutableCollection<V> createValues() {
   }
 
   @GwtCompatible(emulated = true)
-  private static final class Values<K, V> extends ImmutableList<V> {
+  @Immutable
+  private static final class Values<K extends @Immutable Object, V> extends ImmutableList<V> {
     final RegularImmutableMap<K, V> map;
 
     Values(RegularImmutableMap<K, V> map) {
@@ -406,7 +412,7 @@ private static class SerializedForm<V> implements Serializable {
         this.map = map;
       }
 
-      Object readResolve() {
+      @Immutable Object readResolve() {
         return map.values();
       }
 
diff --git a/guava/src/com/google/common/collect/RegularImmutableMultiset.java b/guava/src/com/google/common/collect/RegularImmutableMultiset.java
index 7408f5ec9f7c..c1fe0b839c5d 100644
--- a/guava/src/com/google/common/collect/RegularImmutableMultiset.java
+++ b/guava/src/com/google/common/collect/RegularImmutableMultiset.java
@@ -28,7 +28,11 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * Implementation of {@link ImmutableMultiset} with zero or more elements.
@@ -36,9 +40,11 @@
  * @author Jared Levy
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true, serializable = true)
 @SuppressWarnings("serial") // uses writeReplace(), not default serialization
 @ElementTypesAreNonnullByDefault
+@Immutable
 class RegularImmutableMultiset<E> extends ImmutableMultiset<E> {
   private static final ImmutableEntry<?>[] EMPTY_ARRAY = new ImmutableEntry<?>[0];
   static final ImmutableMultiset<Object> EMPTY = create(ImmutableList.<Entry<Object>>of());
@@ -125,7 +131,8 @@ private static boolean hashFloodingDetected(@Nullable ImmutableEntry<?>[] hashTa
   private final transient int size;
   private final transient int hashCode;
 
-  @LazyInit @CheckForNull private transient ImmutableSet<E> elementSet;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @CheckForNull private transient @Assignable ImmutableSet<E> elementSet;
 
   private RegularImmutableMultiset(
       ImmutableEntry<E>[] entries,
@@ -140,6 +147,7 @@ private RegularImmutableMultiset(
     this.elementSet = elementSet;
   }
 
+  @Immutable
   private static final class NonTerminalEntry<E> extends ImmutableEntry<E> {
     private final ImmutableEntry<E> nextInBucket;
 
@@ -185,7 +193,7 @@ boolean isPartialView() {
   @Override
   public ImmutableSet<E> elementSet() {
     ImmutableSet<E> result = elementSet;
-    return (result == null) ? elementSet = new ElementSet<E>(Arrays.asList(entries), this) : result;
+    return (result == null) ? elementSet = new @Immutable ElementSet<E>(Arrays.asList(entries), this) : result;
   }
 
   @Override
diff --git a/guava/src/com/google/common/collect/RegularImmutableSet.java b/guava/src/com/google/common/collect/RegularImmutableSet.java
index a3cd41631285..66e575aade50 100644
--- a/guava/src/com/google/common/collect/RegularImmutableSet.java
+++ b/guava/src/com/google/common/collect/RegularImmutableSet.java
@@ -23,6 +23,8 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -32,10 +34,11 @@
  *
  * @author Kevin Bourrillion
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // uses writeReplace(), not default serialization
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class RegularImmutableSet<E> extends ImmutableSet.CachingAsList<E> {
   private static final Object[] EMPTY_ARRAY = new Object[0];
   static final RegularImmutableSet<Object> EMPTY =
@@ -48,7 +51,7 @@ final class RegularImmutableSet<E> extends ImmutableSet.CachingAsList<E> {
   // 'and' with an int to get a valid table index.
   private final transient int mask;
 
-  RegularImmutableSet(Object[] elements, int hashCode, @Nullable Object[] table, int mask) {
+  RegularImmutableSet(Object @Readonly [] elements, int hashCode, @Nullable Object[] table, int mask) {
     this.elements = elements;
     this.hashCode = hashCode;
     this.table = table;
diff --git a/guava/src/com/google/common/collect/RegularImmutableSortedMultiset.java b/guava/src/com/google/common/collect/RegularImmutableSortedMultiset.java
index cdb7e7151aa2..31926d953586 100644
--- a/guava/src/com/google/common/collect/RegularImmutableSortedMultiset.java
+++ b/guava/src/com/google/common/collect/RegularImmutableSortedMultiset.java
@@ -26,16 +26,20 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * An immutable sorted multiset with one or more distinct elements.
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @SuppressWarnings("serial") // uses writeReplace, not default serialization
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class RegularImmutableSortedMultiset<E> extends ImmutableSortedMultiset<E> {
   private static final long[] ZERO_CUMULATIVE_COUNTS = {0};
 
diff --git a/guava/src/com/google/common/collect/RegularImmutableSortedSet.java b/guava/src/com/google/common/collect/RegularImmutableSortedSet.java
index 7ac7d0fed4ed..2abaf54be5b2 100644
--- a/guava/src/com/google/common/collect/RegularImmutableSortedSet.java
+++ b/guava/src/com/google/common/collect/RegularImmutableSortedSet.java
@@ -31,6 +31,8 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -43,10 +45,11 @@
  * @author Jared Levy
  * @author Louis Wasserman
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings({"serial", "rawtypes"})
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class RegularImmutableSortedSet<E> extends ImmutableSortedSet<E> {
   static final RegularImmutableSortedSet<Comparable> NATURAL_EMPTY_SET =
       new RegularImmutableSortedSet<>(ImmutableList.<Comparable>of(), Ordering.natural());
@@ -164,7 +167,7 @@ public boolean containsAll(Collection<?> targets) {
     }
   }
 
-  private int unsafeBinarySearch(Object key) throws ClassCastException {
+  private int unsafeBinarySearch(@Readonly Object key) throws ClassCastException {
     return Collections.binarySearch(elements, key, unsafeComparator());
   }
 
diff --git a/guava/src/com/google/common/collect/RegularImmutableTable.java b/guava/src/com/google/common/collect/RegularImmutableTable.java
index 0b71914ead32..7ba68f0af7a4 100644
--- a/guava/src/com/google/common/collect/RegularImmutableTable.java
+++ b/guava/src/com/google/common/collect/RegularImmutableTable.java
@@ -27,16 +27,21 @@
 import javax.annotation.CheckForNull;
 
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * An implementation of {@link ImmutableTable} holding an arbitrary number of cells.
  *
  * @author Gregory Kick
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class RegularImmutableTable<R, C, V> extends ImmutableTable<R, C, V> {
+@Immutable
+abstract class RegularImmutableTable<R extends @Immutable Object, C extends @Immutable Object, V> extends ImmutableTable<R, C, V> {
   RegularImmutableTable() {}
 
   abstract Cell<R, C, V> getCell(int iterationIndex);
@@ -47,6 +52,7 @@ final ImmutableSet<Cell<R, C, V>> createCellSet() {
   }
 
   @WeakOuter
+  @Immutable
   private final class CellSet extends IndexedImmutableSet<Cell<R, C, V>> {
     @Override
     public @NonNegative int size() {
@@ -82,6 +88,7 @@ final ImmutableCollection<V> createValues() {
   }
 
   @WeakOuter
+  @Immutable
   private final class Values extends ImmutableList<V> {
     @Override
     public @NonNegative int size() {
@@ -99,7 +106,7 @@ boolean isPartialView() {
     }
   }
 
-  static <R, C, V> RegularImmutableTable<R, C, V> forCells(
+  static <R extends @Immutable Object, C extends @Immutable Object, V> RegularImmutableTable<R, C, V> forCells(
       List<Cell<R, C, V>> cells,
       @CheckForNull Comparator<? super R> rowComparator,
       @CheckForNull Comparator<? super C> columnComparator) {
@@ -130,11 +137,11 @@ static <R, C, V> RegularImmutableTable<R, C, V> forCells(
     return forCellsInternal(cells, rowComparator, columnComparator);
   }
 
-  static <R, C, V> RegularImmutableTable<R, C, V> forCells(Iterable<Cell<R, C, V>> cells) {
+  static <R extends @Immutable Object, C extends @Immutable Object, V> RegularImmutableTable<R, C, V> forCells(Iterable<Cell<R, C, V>> cells) {
     return forCellsInternal(cells, null, null);
   }
 
-  private static <R, C, V> RegularImmutableTable<R, C, V> forCellsInternal(
+  private static <R extends @Immutable Object, C extends @Immutable Object, V> RegularImmutableTable<R, C, V> forCellsInternal(
       Iterable<Cell<R, C, V>> cells,
       @CheckForNull Comparator<? super R> rowComparator,
       @CheckForNull Comparator<? super C> columnComparator) {
@@ -159,7 +166,7 @@ private static <R, C, V> RegularImmutableTable<R, C, V> forCellsInternal(
   }
 
   /** A factory that chooses the most space-efficient representation of the table. */
-  static <R, C, V> RegularImmutableTable<R, C, V> forOrderedComponents(
+  static <R extends @Immutable Object, C extends @Immutable Object, V> RegularImmutableTable<R, C, V> forOrderedComponents(
       ImmutableList<Cell<R, C, V>> cellList,
       ImmutableSet<R> rowSpace,
       ImmutableSet<C> columnSpace) {
diff --git a/guava/src/com/google/common/collect/ReverseNaturalOrdering.java b/guava/src/com/google/common/collect/ReverseNaturalOrdering.java
index 04e3e1709dbd..070006a25b27 100644
--- a/guava/src/com/google/common/collect/ReverseNaturalOrdering.java
+++ b/guava/src/com/google/common/collect/ReverseNaturalOrdering.java
@@ -21,15 +21,16 @@
 import com.google.common.annotations.GwtCompatible;
 import java.io.Serializable;
 import java.util.Iterator;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /** An ordering that uses the reverse of the natural order of the values. */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true)
 @SuppressWarnings({"unchecked", "rawtypes"}) // TODO(kevinb): the right way to explain this??
 @ElementTypesAreNonnullByDefault
-final class ReverseNaturalOrdering extends Ordering<Comparable<?>> implements Serializable {
+final class ReverseNaturalOrdering extends Ordering<@Readonly Comparable<?>> implements Serializable {
   static final ReverseNaturalOrdering INSTANCE = new ReverseNaturalOrdering();
 
   @Pure
@@ -40,53 +41,53 @@ public int compare(Comparable<?> left, Comparable<?> right) {
       return 0;
     }
 
-    return ((Comparable<Object>) right).compareTo(left);
+    return ((Comparable<@Readonly Object>) right).compareTo(left);
   }
 
   @Override
-  public <S extends Comparable<?>> Ordering<S> reverse() {
+  public <S extends @Readonly Comparable<?>> Ordering<S> reverse() {
     return Ordering.natural();
   }
 
   // Override the min/max methods to "hoist" delegation outside loops
 
   @Override
-  public <E extends Comparable<?>> E min(E a, E b) {
+  public <E extends @Readonly Comparable<?>> E min(E a, E b) {
     return NaturalOrdering.INSTANCE.max(a, b);
   }
 
   @Override
-  public <E extends Comparable<?>> E min(E a, E b, E c, E... rest) {
+  public <E extends @Readonly Comparable<?>> E min(E a, E b, E c, E... rest) {
     return NaturalOrdering.INSTANCE.max(a, b, c, rest);
   }
 
   @Override
-  public <E extends Comparable<?>> E min(Iterator<E> iterator) {
+  public <E extends @Readonly Comparable<?>> E min(Iterator<E> iterator) {
     return NaturalOrdering.INSTANCE.max(iterator);
   }
 
   @Override
-  public <E extends Comparable<?>> E min(Iterable<E> iterable) {
+  public <E extends @Readonly Comparable<?>> E min(Iterable<E> iterable) {
     return NaturalOrdering.INSTANCE.max(iterable);
   }
 
   @Override
-  public <E extends Comparable<?>> E max(E a, E b) {
+  public <E extends @Readonly Comparable<?>> E max(E a, E b) {
     return NaturalOrdering.INSTANCE.min(a, b);
   }
 
   @Override
-  public <E extends Comparable<?>> E max(E a, E b, E c, E... rest) {
+  public <E extends @Readonly Comparable<?>> E max(E a, E b, E c, E... rest) {
     return NaturalOrdering.INSTANCE.min(a, b, c, rest);
   }
 
   @Override
-  public <E extends Comparable<?>> E max(Iterator<E> iterator) {
+  public <E extends @Readonly Comparable<?>> E max(Iterator<E> iterator) {
     return NaturalOrdering.INSTANCE.min(iterator);
   }
 
   @Override
-  public <E extends Comparable<?>> E max(Iterable<E> iterable) {
+  public <E extends @Readonly Comparable<?>> E max(Iterable<E> iterable) {
     return NaturalOrdering.INSTANCE.min(iterable);
   }
 
diff --git a/guava/src/com/google/common/collect/ReverseOrdering.java b/guava/src/com/google/common/collect/ReverseOrdering.java
index fe6d7bec74cf..0eee485f8dbe 100644
--- a/guava/src/com/google/common/collect/ReverseOrdering.java
+++ b/guava/src/com/google/common/collect/ReverseOrdering.java
@@ -24,14 +24,15 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /** An ordering that uses the reverse of a given order. */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-final class ReverseOrdering<T extends @Nullable Object> extends Ordering<T>
+final class ReverseOrdering<T extends @Nullable @Readonly Object> extends Ordering<T>
     implements Serializable {
   final Ordering<? super T> forwardOrder;
 
@@ -103,7 +104,7 @@ public int hashCode(@UnknownSignedness ReverseOrdering<T> this) {
 
   @Pure
   @Override
-  public boolean equals(@CheckForNull Object object) {
+  public boolean equals(@CheckForNull @Readonly Object object) {
     if (object == this) {
       return true;
     }
diff --git a/guava/src/com/google/common/collect/RowSortedTable.java b/guava/src/com/google/common/collect/RowSortedTable.java
index 2c2d773f78db..c3effd1d5dcc 100644
--- a/guava/src/com/google/common/collect/RowSortedTable.java
+++ b/guava/src/com/google/common/collect/RowSortedTable.java
@@ -22,6 +22,9 @@
 import java.util.SortedMap;
 import java.util.SortedSet;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * Interface that extends {@code Table} and whose rows are sorted.
@@ -35,8 +38,9 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@ReceiverDependentMutable
 public interface RowSortedTable<
-        R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+        R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends Table<R, C, V> {
   /**
    * {@inheritDoc}
diff --git a/guava/src/com/google/common/collect/Serialization.java b/guava/src/com/google/common/collect/Serialization.java
index ce584b1d12f0..821ee7b010df 100644
--- a/guava/src/com/google/common/collect/Serialization.java
+++ b/guava/src/com/google/common/collect/Serialization.java
@@ -24,6 +24,9 @@
 import java.util.Collection;
 import java.util.Map;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -34,7 +37,7 @@
  *
  * @author Jared Levy
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
 final class Serialization {
@@ -58,7 +61,7 @@ static int readCount(ObjectInputStream stream) throws IOException {
    * <p>The serialized output consists of the number of entries, first key, first value, second key,
    * second value, and so on.
    */
-  static <K extends @Nullable Object, V extends @Nullable Object> void writeMap(
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void writeMap(
       Map<K, V> map, ObjectOutputStream stream) throws IOException {
     stream.writeInt(map.size());
     for (Map.Entry<K, V> entry : map.entrySet()) {
@@ -71,7 +74,7 @@ static int readCount(ObjectInputStream stream) throws IOException {
    * Populates a map by reading an input stream, as part of deserialization. See {@link #writeMap}
    * for the data format.
    */
-  static <K extends @Nullable Object, V extends @Nullable Object> void populateMap(
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void populateMap(
       Map<K, V> map, ObjectInputStream stream) throws IOException, ClassNotFoundException {
     int size = stream.readInt();
     populateMap(map, stream, size);
@@ -81,7 +84,7 @@ static int readCount(ObjectInputStream stream) throws IOException {
    * Populates a map by reading an input stream, as part of deserialization. See {@link #writeMap}
    * for the data format. The size is determined by a prior call to {@link #readCount}.
    */
-  static <K extends @Nullable Object, V extends @Nullable Object> void populateMap(
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void populateMap(
       Map<K, V> map, ObjectInputStream stream, int size)
       throws IOException, ClassNotFoundException {
     for (int i = 0; i < size; i++) {
@@ -100,7 +103,7 @@ static int readCount(ObjectInputStream stream) throws IOException {
    * <p>The serialized output consists of the number of distinct elements, the first element, its
    * count, the second element, its count, and so on.
    */
-  static <E extends @Nullable Object> void writeMultiset(
+  static <E extends @Nullable @Readonly Object> void writeMultiset(
       Multiset<E> multiset, ObjectOutputStream stream) throws IOException {
     int entryCount = multiset.entrySet().size();
     stream.writeInt(entryCount);
@@ -114,7 +117,7 @@ static int readCount(ObjectInputStream stream) throws IOException {
    * Populates a multiset by reading an input stream, as part of deserialization. See {@link
    * #writeMultiset} for the data format.
    */
-  static <E extends @Nullable Object> void populateMultiset(
+  static <E extends @Nullable @Readonly Object> void populateMultiset(
       Multiset<E> multiset, ObjectInputStream stream) throws IOException, ClassNotFoundException {
     int distinctElements = stream.readInt();
     populateMultiset(multiset, stream, distinctElements);
@@ -125,7 +128,7 @@ static int readCount(ObjectInputStream stream) throws IOException {
    * #writeMultiset} for the data format. The number of distinct elements is determined by a prior
    * call to {@link #readCount}.
    */
-  static <E extends @Nullable Object> void populateMultiset(
+  static <E extends @Nullable @Readonly Object> void populateMultiset(
       Multiset<E> multiset, ObjectInputStream stream, int distinctElements)
       throws IOException, ClassNotFoundException {
     for (int i = 0; i < distinctElements; i++) {
@@ -144,7 +147,7 @@ static int readCount(ObjectInputStream stream) throws IOException {
    * <p>The serialized output consists of the number of distinct keys, and then for each distinct
    * key: the key, the number of values for that key, and the key's values.
    */
-  static <K extends @Nullable Object, V extends @Nullable Object> void writeMultimap(
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void writeMultimap(
       Multimap<K, V> multimap, ObjectOutputStream stream) throws IOException {
     stream.writeInt(multimap.asMap().size());
     for (Map.Entry<K, Collection<V>> entry : multimap.asMap().entrySet()) {
@@ -160,7 +163,7 @@ static int readCount(ObjectInputStream stream) throws IOException {
    * Populates a multimap by reading an input stream, as part of deserialization. See {@link
    * #writeMultimap} for the data format.
    */
-  static <K extends @Nullable Object, V extends @Nullable Object> void populateMultimap(
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void populateMultimap(
       Multimap<K, V> multimap, ObjectInputStream stream)
       throws IOException, ClassNotFoundException {
     int distinctKeys = stream.readInt();
@@ -172,7 +175,7 @@ static int readCount(ObjectInputStream stream) throws IOException {
    * #writeMultimap} for the data format. The number of distinct keys is determined by a prior call
    * to {@link #readCount}.
    */
-  static <K extends @Nullable Object, V extends @Nullable Object> void populateMultimap(
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> void populateMultimap(
       Multimap<K, V> multimap, ObjectInputStream stream, int distinctKeys)
       throws IOException, ClassNotFoundException {
     for (int i = 0; i < distinctKeys; i++) {
@@ -199,6 +202,7 @@ static <T> FieldSetter<T> getFieldSetter(Class<T> clazz, String fieldName) {
   }
 
   // Secret sauce for setting final fields; don't make it public.
+  @ReceiverDependentMutable
   static final class FieldSetter<T> {
     private final Field field;
 
@@ -207,7 +211,7 @@ private FieldSetter(Field field) {
       field.setAccessible(true);
     }
 
-    void set(T instance, Object value) {
+    void set(T instance, @Readonly Object value) {
       try {
         field.set(instance, value);
       } catch (IllegalAccessException impossible) {
diff --git a/guava/src/com/google/common/collect/SetMultimap.java b/guava/src/com/google/common/collect/SetMultimap.java
index 291b5e207a03..df88ef395ca8 100644
--- a/guava/src/com/google/common/collect/SetMultimap.java
+++ b/guava/src/com/google/common/collect/SetMultimap.java
@@ -24,6 +24,11 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
@@ -54,9 +59,10 @@
  * @since 2.0
  */
 @GwtCompatible
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @ElementTypesAreNonnullByDefault
-public interface SetMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public interface SetMultimap<K extends @Nullable @Immutable Object, V extends @Readonly @Nullable Object>
     extends Multimap<K, V> {
   /**
    * {@inheritDoc}
@@ -66,7 +72,7 @@ public interface SetMultimap<K extends @Nullable Object, V extends @Nullable Obj
    * interface.
    */
   @Override
-  Set<V> get(@ParametricNullness K key);
+  @PolyMutable Set<V> get(@PolyMutable SetMultimap<K, V> this, @ParametricNullness K key);
 
   /**
    * {@inheritDoc}
@@ -77,7 +83,7 @@ public interface SetMultimap<K extends @Nullable Object, V extends @Nullable Obj
    */
   @CanIgnoreReturnValue
   @Override
-  Set<V> removeAll(@CheckForNull Object key);
+  @Readonly Set<V> removeAll(@Mutable SetMultimap<K, V> this, @CheckForNull @Readonly Object key);
 
   /**
    * {@inheritDoc}
@@ -90,7 +96,7 @@ public interface SetMultimap<K extends @Nullable Object, V extends @Nullable Obj
    */
   @CanIgnoreReturnValue
   @Override
-  Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values);
+  @Readonly Set<V> replaceValues(@Mutable SetMultimap<K, V> this, @ParametricNullness K key, Iterable<? extends V> values);
 
   /**
    * {@inheritDoc}
@@ -100,7 +106,7 @@ public interface SetMultimap<K extends @Nullable Object, V extends @Nullable Obj
    * interface.
    */
   @Override
-  Set<Entry<K, V>> entries();
+  @PolyMutable Set<@PolyMutable Entry<K, V>> entries(@PolyMutable SetMultimap<K, V> this);
 
   /**
    * {@inheritDoc}
@@ -110,7 +116,7 @@ public interface SetMultimap<K extends @Nullable Object, V extends @Nullable Obj
    * Multimaps#asMap(SetMultimap)} instead.
    */
   @Override
-  Map<K, Collection<V>> asMap();
+  @PolyMutable Map<K, @PolyMutable Collection<V>> asMap(@PolyMutable SetMultimap<K, V> this);
 
   /**
    * Compares the specified object to this multimap for equality.
@@ -123,5 +129,5 @@ public interface SetMultimap<K extends @Nullable Object, V extends @Nullable Obj
    */
   @Pure
   @Override
-  boolean equals(@CheckForNull Object obj);
+  boolean equals(@Readonly SetMultimap<K, V> this, @CheckForNull @Readonly Object obj);
 }
diff --git a/guava/src/com/google/common/collect/Sets.java b/guava/src/com/google/common/collect/Sets.java
index f4d6f0175934..627699bbc98e 100644
--- a/guava/src/com/google/common/collect/Sets.java
+++ b/guava/src/com/google/common/collect/Sets.java
@@ -56,6 +56,11 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
@@ -73,7 +78,7 @@
  * @author Chris Povirk
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
 public final class Sets {
@@ -83,14 +88,15 @@ private Sets() {}
    * {@link AbstractSet} substitute without the potentially-quadratic {@code removeAll}
    * implementation.
    */
-  abstract static class ImprovedAbstractSet<E extends @Nullable Object> extends AbstractSet<E> {
+  @ReceiverDependentMutable
+  abstract static class ImprovedAbstractSet<E extends @Nullable @Readonly Object> extends AbstractSet<E> {
     @Override
-    public boolean removeAll(Collection<?> c) {
+    public boolean removeAll(@Mutable ImprovedAbstractSet<E> this, @Readonly Collection<?> c) {
       return removeAllImpl(this, c);
     }
 
     @Override
-    public boolean retainAll(Collection<?> c) {
+    public boolean retainAll(@Mutable ImprovedAbstractSet<E> this, @Readonly Collection<?> c) {
       return super.retainAll(checkNotNull(c)); // GWT compatibility
     }
   }
@@ -184,7 +190,7 @@ public static <E extends Enum<E>> EnumSet<E> newEnumSet(
    * use the {@code HashSet} constructor directly, taking advantage of <a
    * href="http://goo.gl/iz2Wi">"diamond" syntax</a>.
    */
-  public static <E extends @Nullable Object> HashSet<E> newHashSet() {
+  public static <E extends @Nullable @Immutable Object> HashSet<E> newHashSet() {
     return new HashSet<E>();
   }
 
@@ -201,7 +207,7 @@ public static <E extends Enum<E>> EnumSet<E> newEnumSet(
    * asList}{@code (...))}, or for creating an empty set then calling {@link Collections#addAll}.
    * This method is not actually very useful and will likely be deprecated in the future.
    */
-  public static <E extends @Nullable Object> HashSet<E> newHashSet(E... elements) {
+  public static <E extends @Nullable @Immutable Object> HashSet<E> newHashSet(E... elements) {
     HashSet<E> set = newHashSetWithExpectedSize(elements.length);
     Collections.addAll(set, elements);
     return set;
@@ -225,7 +231,7 @@ public static <E extends Enum<E>> EnumSet<E> newEnumSet(
    *
    * <p>Overall, this method is not very useful and will likely be deprecated in the future.
    */
-  public static <E extends @Nullable Object> HashSet<E> newHashSet(Iterable<? extends E> elements) {
+  public static <E extends @Nullable @Immutable Object> HashSet<E> newHashSet(Iterable<? extends E> elements) {
     return (elements instanceof Collection)
         ? new HashSet<E>((Collection<? extends E>) elements)
         : newHashSet(elements.iterator());
@@ -243,7 +249,7 @@ public static <E extends Enum<E>> EnumSet<E> newEnumSet(
    *
    * <p>Overall, this method is not very useful and will likely be deprecated in the future.
    */
-  public static <E extends @Nullable Object> HashSet<E> newHashSet(Iterator<? extends E> elements) {
+  public static <E extends @Nullable @Immutable Object> HashSet<E> newHashSet(Iterator<? extends E> elements) {
     HashSet<E> set = newHashSet();
     Iterators.addAll(set, elements);
     return set;
@@ -261,7 +267,7 @@ public static <E extends Enum<E>> EnumSet<E> newEnumSet(
    *     without resizing
    * @throws IllegalArgumentException if {@code expectedSize} is negative
    */
-  public static <E extends @Nullable Object> HashSet<E> newHashSetWithExpectedSize(
+  public static <E extends @Nullable @Immutable Object> HashSet<E> newHashSetWithExpectedSize(
       int expectedSize) {
     return new HashSet<E>(Maps.capacity(expectedSize));
   }
@@ -312,7 +318,7 @@ public static <E> Set<E> newConcurrentHashSet(Iterable<? extends E> elements) {
    *
    * @return a new, empty {@code LinkedHashSet}
    */
-  public static <E extends @Nullable Object> LinkedHashSet<E> newLinkedHashSet() {
+  public static <E extends @Nullable @Immutable Object> LinkedHashSet<E> newLinkedHashSet() {
     return new LinkedHashSet<E>();
   }
 
@@ -331,7 +337,7 @@ public static <E> Set<E> newConcurrentHashSet(Iterable<? extends E> elements) {
    * @param elements the elements that the set should contain, in order
    * @return a new {@code LinkedHashSet} containing those elements (minus duplicates)
    */
-  public static <E extends @Nullable Object> LinkedHashSet<E> newLinkedHashSet(
+  public static <E extends @Nullable @Immutable Object> LinkedHashSet<E> newLinkedHashSet(
       Iterable<? extends E> elements) {
     if (elements instanceof Collection) {
       return new LinkedHashSet<E>((Collection<? extends E>) elements);
@@ -353,7 +359,7 @@ public static <E> Set<E> newConcurrentHashSet(Iterable<? extends E> elements) {
    * @throws IllegalArgumentException if {@code expectedSize} is negative
    * @since 11.0
    */
-  public static <E extends @Nullable Object> LinkedHashSet<E> newLinkedHashSetWithExpectedSize(
+  public static <E extends @Nullable @Immutable Object> LinkedHashSet<E> newLinkedHashSetWithExpectedSize(
       int expectedSize) {
     return new LinkedHashSet<E>(Maps.capacity(expectedSize));
   }
@@ -372,7 +378,7 @@ public static <E> Set<E> newConcurrentHashSet(Iterable<? extends E> elements) {
    *
    * @return a new, empty {@code TreeSet}
    */
-  public static <E extends @Nullable Comparable> TreeSet<E> newTreeSet() {
+  public static <E extends @Nullable @Immutable Comparable> TreeSet<E> newTreeSet() {
     return new TreeSet<E>();
   }
 
@@ -397,7 +403,7 @@ public static <E> Set<E> newConcurrentHashSet(Iterable<? extends E> elements) {
    * @param elements the elements that the set should contain
    * @return a new {@code TreeSet} containing those elements (minus duplicates)
    */
-  public static <E extends @Nullable Comparable> TreeSet<E> newTreeSet(Iterable<? extends E> elements) {
+  public static <E extends @Nullable @Immutable Comparable> TreeSet<E> newTreeSet(Iterable<? extends E> elements) {
     TreeSet<E> set = newTreeSet();
     Iterables.addAll(set, elements);
     return set;
@@ -419,7 +425,7 @@ public static <E> Set<E> newConcurrentHashSet(Iterable<? extends E> elements) {
    * @return a new, empty {@code TreeSet}
    * @throws NullPointerException if {@code comparator} is null
    */
-  public static <E extends @Nullable Object> TreeSet<E> newTreeSet(
+  public static <E extends @Nullable @Immutable Object> TreeSet<E> newTreeSet(
       Comparator<? super E> comparator) {
     return new TreeSet<E>(checkNotNull(comparator));
   }
@@ -433,7 +439,7 @@ public static <E> Set<E> newConcurrentHashSet(Iterable<? extends E> elements) {
    *
    * @since 8.0
    */
-  public static <E extends @Nullable Object> Set<E> newIdentityHashSet() {
+  public static <E extends @Nullable @Immutable Object> Set<E> newIdentityHashSet() {
     return Collections.newSetFromMap(Maps.<E, Boolean>newIdentityHashMap());
   }
 
@@ -447,7 +453,7 @@ public static <E> Set<E> newConcurrentHashSet(Iterable<? extends E> elements) {
    * @since 12.0
    */
   @GwtIncompatible // CopyOnWriteArraySet
-  public static <E extends @Nullable Object> CopyOnWriteArraySet<E> newCopyOnWriteArraySet() {
+  public static <E extends @Nullable @Readonly Object> CopyOnWriteArraySet<E> newCopyOnWriteArraySet() {
     return new CopyOnWriteArraySet<E>();
   }
 
@@ -459,8 +465,8 @@ public static <E> Set<E> newConcurrentHashSet(Iterable<? extends E> elements) {
    * @since 12.0
    */
   @GwtIncompatible // CopyOnWriteArraySet
-  public static <E extends @Nullable Object> CopyOnWriteArraySet<E> newCopyOnWriteArraySet(
-      Iterable<? extends E> elements) {
+  public static <E extends @Nullable @Readonly Object> CopyOnWriteArraySet<E> newCopyOnWriteArraySet(
+      @Readonly Iterable<? extends E> elements) {
     // We copy elements to an ArrayList first, rather than incurring the
     // quadratic cost of adding them to the COWAS directly.
     Collection<? extends E> elementsCollection =
@@ -483,7 +489,7 @@ public static <E> Set<E> newConcurrentHashSet(Iterable<? extends E> elements) {
    * @throws IllegalArgumentException if {@code collection} is not an {@code EnumSet} instance and
    *     contains no elements
    */
-  public static <E extends Enum<E>> EnumSet<E> complementOf(Collection<E> collection) {
+  public static <E extends Enum<E>> EnumSet<E> complementOf(@Readonly Collection<E> collection) {
     if (collection instanceof EnumSet) {
       return EnumSet.complementOf((EnumSet<E>) collection);
     }
@@ -504,7 +510,7 @@ public static <E extends Enum<E>> EnumSet<E> complementOf(Collection<E> collecti
    *     present in the given collection
    */
   public static <E extends Enum<E>> EnumSet<E> complementOf(
-      Collection<E> collection, Class<E> type) {
+      @Readonly Collection<E> collection, Class<E> type) {
     checkNotNull(collection);
     return (collection instanceof EnumSet)
         ? EnumSet.complementOf((EnumSet<E>) collection)
@@ -512,7 +518,7 @@ public static <E extends Enum<E>> EnumSet<E> complementOf(
   }
 
   private static <E extends Enum<E>> EnumSet<E> makeComplementByHand(
-      Collection<E> collection, Class<E> type) {
+      @Readonly Collection<E> collection, Class<E> type) {
     EnumSet<E> result = EnumSet.allOf(type);
     result.removeAll(collection);
     return result;
@@ -548,7 +554,7 @@ private static <E extends Enum<E>> EnumSet<E> makeComplementByHand(
    * @deprecated Use {@link Collections#newSetFromMap} instead.
    */
   @Deprecated
-  public static <E extends @Nullable Object> Set<E> newSetFromMap(
+  public static <E extends @Nullable @Immutable Object> Set<E> newSetFromMap(
       Map<E, Boolean> map) {
     return Collections.newSetFromMap(map);
   }
@@ -562,7 +568,8 @@ private static <E extends Enum<E>> EnumSet<E> makeComplementByHand(
    *
    * @since 2.0
    */
-  public abstract static class SetView<E extends @Nullable Object> extends AbstractSet<E> {
+  @ReceiverDependentMutable
+  public abstract static class SetView<E extends @Nullable @Readonly Object> extends AbstractSet<E> {
     private SetView() {} // no subclasses but our own
 
     /**
@@ -709,7 +716,7 @@ public final void clear() {
    * equivalence relations, for example if {@code set1} is a {@link HashSet} and {@code set2} is a
    * {@link TreeSet} or the {@link Map#keySet} of an {@code IdentityHashMap}.
    */
-  public static <E extends @Nullable Object> SetView<E> union(
+  public static <E extends @Nullable @Readonly Object> SetView<E> union(
       final Set<? extends E> set1, final Set<? extends E> set2) {
     checkNotNull(set1, "set1");
     checkNotNull(set2, "set2");
@@ -734,8 +741,8 @@ public boolean isEmpty() {
       }
 
       @Override
-      public UnmodifiableIterator<E> iterator() {
-        return new AbstractIterator<E>() {
+      public @Readonly UnmodifiableIterator<E> iterator() {
+        return new @Immutable AbstractIterator<E>() {
           final Iterator<? extends E> itr1 = set1.iterator();
           final Iterator<? extends E> itr2 = set2.iterator();
 
@@ -767,7 +774,7 @@ public Stream<E> parallelStream() {
       }
 
       @Override
-      public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+      public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object object) {
         return set1.contains(object) || set2.contains(object);
       }
 
@@ -813,7 +820,7 @@ public ImmutableSet<E> immutableCopy() {
    *
    * <p>This is unfortunate, but should come up only very rarely.
    */
-  public static <E extends @Nullable Object> SetView<E> intersection(
+  public static <E extends @Nullable @Readonly Object> SetView<E> intersection(
       final Set<E> set1, final Set<?> set2) {
     checkNotNull(set1, "set1");
     checkNotNull(set2, "set2");
@@ -821,7 +828,7 @@ public ImmutableSet<E> immutableCopy() {
     return new SetView<E>() {
       @Override
       public UnmodifiableIterator<E> iterator() {
-        return new AbstractIterator<E>() {
+        return new @Immutable AbstractIterator<E>() {
           final Iterator<E> itr = set1.iterator();
 
           @Override
@@ -886,7 +893,7 @@ public boolean containsAll(Collection<?> collection) {
    * equivalence relations, for example if {@code set1} is a {@link HashSet} and {@code set2} is a
    * {@link TreeSet} or the {@link Map#keySet} of an {@code IdentityHashMap}.
    */
-  public static <E extends @Nullable Object> SetView<E> difference(
+  public static <E extends @Nullable @Readonly Object> SetView<E> difference(
       final Set<E> set1, final Set<?> set2) {
     checkNotNull(set1, "set1");
     checkNotNull(set2, "set2");
@@ -938,7 +945,7 @@ public boolean isEmpty() {
       }
 
       @Override
-      public boolean contains(@CheckForNull @UnknownSignedness Object element) {
+      public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object element) {
         return set1.contains(element) && !set2.contains(element);
       }
     };
@@ -955,7 +962,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object element) {
    *
    * @since 3.0
    */
-  public static <E extends @Nullable Object> SetView<E> symmetricDifference(
+  public static <E extends @Nullable @Readonly Object> SetView<E> symmetricDifference(
       final Set<? extends E> set1, final Set<? extends E> set2) {
     checkNotNull(set1, "set1");
     checkNotNull(set2, "set2");
@@ -1008,7 +1015,7 @@ public boolean isEmpty() {
       }
 
       @Override
-      public boolean contains(@CheckForNull @UnknownSignedness Object element) {
+      public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object element) {
         return set1.contains(element) ^ set2.contains(element);
       }
     };
@@ -1041,8 +1048,8 @@ public boolean contains(@CheckForNull @UnknownSignedness Object element) {
    * you to migrate to streams.
    */
   // TODO(kevinb): how to omit that last sentence when building GWT javadoc?
-  public static <E extends @Nullable Object> Set<E> filter(
-      Set<E> unfiltered, Predicate<? super E> predicate) {
+  public static <E extends @Nullable @Readonly Object> Set<E> filter(
+          @Readonly Set<E> unfiltered, Predicate<? super E> predicate) {
     if (unfiltered instanceof SortedSet) {
       return filter((SortedSet<E>) unfiltered, predicate);
     }
@@ -1081,17 +1088,17 @@ public boolean contains(@CheckForNull @UnknownSignedness Object element) {
    *
    * @since 11.0
    */
-  public static <E extends @Nullable Object> SortedSet<E> filter(
-      SortedSet<E> unfiltered, Predicate<? super E> predicate) {
+  public static <E extends @Nullable @Readonly Object> @PolyMutable SortedSet<E> filter(
+      @PolyMutable SortedSet<E> unfiltered, Predicate<? super E> predicate) {
     if (unfiltered instanceof FilteredSet) {
       // Support clear(), removeAll(), and retainAll() when filtering a filtered
       // collection.
       FilteredSet<E> filtered = (FilteredSet<E>) unfiltered;
       Predicate<E> combinedPredicate = Predicates.<E>and(filtered.predicate, predicate);
-      return new FilteredSortedSet<E>((SortedSet<E>) filtered.unfiltered, combinedPredicate);
+      return new @PolyMutable FilteredSortedSet<E>((SortedSet<E>) filtered.unfiltered, combinedPredicate);
     }
 
-    return new FilteredSortedSet<E>(checkNotNull(unfiltered), checkNotNull(predicate));
+    return new @PolyMutable FilteredSortedSet<E>(checkNotNull(unfiltered), checkNotNull(predicate));
   }
 
   /**
@@ -1120,7 +1127,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object element) {
    */
   @GwtIncompatible // NavigableSet
   @SuppressWarnings("unchecked")
-  public static <E extends @Nullable Object> NavigableSet<E> filter(
+  public static <E extends @Nullable @Readonly Object> NavigableSet<E> filter(
       NavigableSet<E> unfiltered, Predicate<? super E> predicate) {
     if (unfiltered instanceof FilteredSet) {
       // Support clear(), removeAll(), and retainAll() when filtering a filtered
@@ -1133,61 +1140,63 @@ public boolean contains(@CheckForNull @UnknownSignedness Object element) {
     return new FilteredNavigableSet<E>(checkNotNull(unfiltered), checkNotNull(predicate));
   }
 
-  private static class FilteredSet<E extends @Nullable Object> extends FilteredCollection<E>
+  @ReceiverDependentMutable
+  private static class FilteredSet<E extends @Nullable @Readonly Object> extends FilteredCollection<E>
       implements Set<E> {
-    FilteredSet(Set<E> unfiltered, Predicate<? super E> predicate) {
+    FilteredSet(@ReceiverDependentMutable Set<E> unfiltered, Predicate<? super E> predicate) {
       super(unfiltered, predicate);
     }
 
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object object) {
+    public boolean equals(@Readonly FilteredSet<E> this, @CheckForNull @UnknownSignedness @Readonly Object object) {
       return equalsImpl(this, object);
     }
 
     @Override
-    public int hashCode(@UnknownSignedness FilteredSet<E> this) {
+    public int hashCode(@UnknownSignedness @Readonly FilteredSet<E> this) {
       return hashCodeImpl(this);
     }
   }
 
-  private static class FilteredSortedSet<E extends @Nullable Object> extends FilteredSet<E>
+  @ReceiverDependentMutable
+  private static class FilteredSortedSet<E extends @Nullable @Readonly Object> extends FilteredSet<E>
       implements SortedSet<E> {
 
-    FilteredSortedSet(SortedSet<E> unfiltered, Predicate<? super E> predicate) {
+    FilteredSortedSet(@ReceiverDependentMutable SortedSet<E> unfiltered, Predicate<? super E> predicate) {
       super(unfiltered, predicate);
     }
 
     @Override
     @CheckForNull
-    public Comparator<? super E> comparator() {
+    public Comparator<? super E> comparator(@Readonly FilteredSortedSet<E> this) {
       return ((SortedSet<E>) unfiltered).comparator();
     }
 
     @Override
-    public SortedSet<E> subSet(@ParametricNullness E fromElement, @ParametricNullness E toElement) {
-      return new FilteredSortedSet<E>(
-          ((SortedSet<E>) unfiltered).subSet(fromElement, toElement), predicate);
+    public @PolyMutable SortedSet<E> subSet(@PolyMutable FilteredSortedSet<E> this, @ParametricNullness E fromElement, @ParametricNullness E toElement) {
+      return new @PolyMutable FilteredSortedSet<E>(
+          ((@PolyMutable SortedSet<E>) unfiltered).subSet(fromElement, toElement), predicate);
     }
 
     @Override
-    public SortedSet<E> headSet(@ParametricNullness E toElement) {
-      return new FilteredSortedSet<E>(((SortedSet<E>) unfiltered).headSet(toElement), predicate);
+    public @PolyMutable SortedSet<E> headSet(@PolyMutable FilteredSortedSet<E> this, @ParametricNullness E toElement) {
+      return new @PolyMutable FilteredSortedSet<E>(((@PolyMutable SortedSet<E>) unfiltered).headSet(toElement), predicate);
     }
 
     @Override
-    public SortedSet<E> tailSet(@ParametricNullness E fromElement) {
-      return new FilteredSortedSet<E>(((SortedSet<E>) unfiltered).tailSet(fromElement), predicate);
+    public @PolyMutable SortedSet<E> tailSet(@PolyMutable FilteredSortedSet<E> this, @ParametricNullness E fromElement) {
+      return new @PolyMutable FilteredSortedSet<E>(((@PolyMutable SortedSet<E>) unfiltered).tailSet(fromElement), predicate);
     }
 
     @Override
     @ParametricNullness
-    public E first() {
+    public E first(@Readonly FilteredSortedSet<E> this) {
       return Iterators.find(unfiltered.iterator(), predicate);
     }
 
     @Override
     @ParametricNullness
-    public E last() {
+    public E last(@Readonly FilteredSortedSet<E> this) {
       SortedSet<E> sortedUnfiltered = (SortedSet<E>) unfiltered;
       while (true) {
         E element = sortedUnfiltered.last();
@@ -1200,70 +1209,72 @@ public E last() {
   }
 
   @GwtIncompatible // NavigableSet
-  private static class FilteredNavigableSet<E extends @Nullable Object> extends FilteredSortedSet<E>
+  @ReceiverDependentMutable
+  private static class FilteredNavigableSet<E extends @Nullable @Readonly Object> extends FilteredSortedSet<E>
       implements NavigableSet<E> {
-    FilteredNavigableSet(NavigableSet<E> unfiltered, Predicate<? super E> predicate) {
+    FilteredNavigableSet(@ReceiverDependentMutable NavigableSet<E> unfiltered, Predicate<? super E> predicate) {
       super(unfiltered, predicate);
     }
 
-    NavigableSet<E> unfiltered() {
+    @PolyMutable NavigableSet<E> unfiltered(@PolyMutable FilteredNavigableSet<E> this) {
       return (NavigableSet<E>) unfiltered;
     }
 
     @Override
     @CheckForNull
-    public E lower(@ParametricNullness E e) {
+    public E lower(@Readonly FilteredNavigableSet<E> this, @ParametricNullness E e) {
       return Iterators.find(unfiltered().headSet(e, false).descendingIterator(), predicate, null);
     }
 
     @Override
     @CheckForNull
-    public E floor(@ParametricNullness E e) {
+    public E floor(@Readonly FilteredNavigableSet<E> this, @ParametricNullness E e) {
       return Iterators.find(unfiltered().headSet(e, true).descendingIterator(), predicate, null);
     }
 
     @Override
     @CheckForNull
-    public E ceiling(@ParametricNullness E e) {
+    public E ceiling(@Readonly FilteredNavigableSet<E> this, @ParametricNullness E e) {
       return Iterables.find(unfiltered().tailSet(e, true), predicate, null);
     }
 
     @Override
     @CheckForNull
-    public E higher(@ParametricNullness E e) {
+    public E higher(@Readonly FilteredNavigableSet<E> this, @ParametricNullness E e) {
       return Iterables.find(unfiltered().tailSet(e, false), predicate, null);
     }
 
     @Override
     @CheckForNull
-    public E pollFirst() {
+    public E pollFirst(@Mutable FilteredNavigableSet<E> this) {
       return Iterables.removeFirstMatching(unfiltered(), predicate);
     }
 
     @Override
     @CheckForNull
-    public E pollLast() {
+    public E pollLast(@Mutable FilteredNavigableSet<E> this) {
       return Iterables.removeFirstMatching(unfiltered().descendingSet(), predicate);
     }
 
     @Override
-    public NavigableSet<E> descendingSet() {
+    public @PolyMutable NavigableSet<E> descendingSet(@PolyMutable FilteredNavigableSet<E> this) {
       return Sets.filter(unfiltered().descendingSet(), predicate);
     }
 
     @Override
-    public Iterator<E> descendingIterator() {
+    public @Readonly Iterator<E> descendingIterator(@Readonly FilteredNavigableSet<E> this) {
       return Iterators.filter(unfiltered().descendingIterator(), predicate);
     }
 
     @Override
     @ParametricNullness
-    public E last() {
+    public E last(@Readonly FilteredNavigableSet<E> this) {
       return Iterators.find(unfiltered().descendingIterator(), predicate);
     }
 
     @Override
-    public NavigableSet<E> subSet(
+    public @PolyMutable NavigableSet<E> subSet(
+            @PolyMutable FilteredNavigableSet<E> this,
         @ParametricNullness E fromElement,
         boolean fromInclusive,
         @ParametricNullness E toElement,
@@ -1273,12 +1284,12 @@ public NavigableSet<E> subSet(
     }
 
     @Override
-    public NavigableSet<E> headSet(@ParametricNullness E toElement, boolean inclusive) {
+    public @PolyMutable NavigableSet<E> headSet(@PolyMutable FilteredNavigableSet<E> this, @ParametricNullness E toElement, boolean inclusive) {
       return filter(unfiltered().headSet(toElement, inclusive), predicate);
     }
 
     @Override
-    public NavigableSet<E> tailSet(@ParametricNullness E fromElement, boolean inclusive) {
+    public @PolyMutable NavigableSet<E> tailSet(@PolyMutable FilteredNavigableSet<E> this, @ParametricNullness E fromElement, boolean inclusive) {
       return filter(unfiltered().tailSet(fromElement, inclusive), predicate);
     }
   }
@@ -1398,6 +1409,7 @@ public static <B> Set<List<B>> cartesianProduct(Set<? extends B>... sets) {
     return cartesianProduct(Arrays.asList(sets));
   }
 
+  @ReceiverDependentMutable
   private static final class CartesianSet<E> extends ForwardingCollection<List<E>>
       implements Set<List<E>> {
     private final transient ImmutableList<ImmutableSet<E>> axes;
@@ -1433,18 +1445,18 @@ boolean isPartialView() {
       return new CartesianSet<E>(axes, new CartesianList<E>(listAxes));
     }
 
-    private CartesianSet(ImmutableList<ImmutableSet<E>> axes, CartesianList<E> delegate) {
+    private CartesianSet(ImmutableList<ImmutableSet<E>> axes, @ReceiverDependentMutable CartesianList<E> delegate) {
       this.axes = axes;
       this.delegate = delegate;
     }
 
     @Override
-    protected Collection<List<E>> delegate() {
+    protected @PolyMutable Collection<List<E>> delegate(@PolyMutable CartesianSet<E> this) {
       return delegate;
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object object) {
+    public boolean contains(@Readonly CartesianSet<E> this, @CheckForNull @UnknownSignedness @Readonly Object object) {
       if (!(object instanceof List)) {
         return false;
       }
@@ -1463,7 +1475,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object object) {
     }
 
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object object) {
+    public boolean equals(@Readonly CartesianSet<E> this, @CheckForNull @UnknownSignedness @Readonly Object object) {
       // Warning: this is broken if size() == 0, so it is critical that we
       // substitute an empty ImmutableSet to the user in place of this
       if (object instanceof CartesianSet) {
@@ -1474,7 +1486,7 @@ public boolean equals(@CheckForNull @UnknownSignedness Object object) {
     }
 
     @Override
-    public int hashCode(@UnknownSignedness CartesianSet<E> this) {
+    public int hashCode(@UnknownSignedness @Readonly CartesianSet<E> this) {
       // Warning: this is broken if size() == 0, so it is critical that we
       // substitute an empty ImmutableSet to the user in place of this
 
@@ -1521,11 +1533,12 @@ public int hashCode(@UnknownSignedness CartesianSet<E> this) {
    * @since 4.0
    */
   @GwtCompatible(serializable = false)
-  public static <E> Set<Set<E>> powerSet(Set<E> set) {
+  public static <E extends @Immutable Object> Set<@Readonly Set<E>> powerSet(Set<E> set) {
     return new PowerSet<E>(set);
   }
 
-  private static final class SubSet<E> extends AbstractSet<E> {
+  @ReceiverDependentMutable
+  private static final class SubSet<E extends @Immutable Object> extends AbstractSet<E> {
     private final ImmutableMap<E, Integer> inputSet;
     private final int mask;
 
@@ -1535,7 +1548,7 @@ private static final class SubSet<E> extends AbstractSet<E> {
     }
 
     @Override
-    public Iterator<E> iterator() {
+    public Iterator<E> iterator(@Readonly SubSet<E> this) {
       return new UnmodifiableIterator<E>() {
         final ImmutableList<E> elements = inputSet.keySet().asList();
         int remainingSetBits = mask;
@@ -1558,38 +1571,39 @@ public E next() {
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly SubSet<E> this) {
       return Integer.bitCount(mask);
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly SubSet<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       Integer index = inputSet.get(o);
       return index != null && (mask & (1 << index)) != 0;
     }
   }
 
-  private static final class PowerSet<E> extends AbstractSet<Set<E>> {
+  @ReceiverDependentMutable
+  private static final class PowerSet<E extends @Immutable Object> extends AbstractSet<@Readonly Set<E>> {
     final ImmutableMap<E, Integer> inputSet;
 
-    PowerSet(Set<E> input) {
+    PowerSet(@Readonly Set<E> input) {
       checkArgument(
           input.size() <= 30, "Too many elements to create power set: %s > 30", input.size());
       this.inputSet = Maps.indexMap(input);
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly PowerSet<E> this) {
       return 1 << inputSet.size();
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly PowerSet<E> this) {
       return false;
     }
 
     @Override
-    public Iterator<Set<E>> iterator() {
+    public Iterator<Set<E>> iterator(@Readonly PowerSet<E> this) {
       return new AbstractIndexedListIterator<Set<E>>(size()) {
         @Override
         protected Set<E> get(final int setBits) {
@@ -1599,7 +1613,7 @@ protected Set<E> get(final int setBits) {
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object obj) {
+    public boolean contains(@Readonly PowerSet<E> this, @CheckForNull @UnknownSignedness @Readonly Object obj) {
       if (obj instanceof Set) {
         Set<?> set = (Set<?>) obj;
         return inputSet.keySet().containsAll(set);
@@ -1608,7 +1622,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object obj) {
     }
 
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object obj) {
+    public boolean equals(@CheckForNull @UnknownSignedness @Readonly Object obj) {
       if (obj instanceof PowerSet) {
         PowerSet<?> that = (PowerSet<?>) obj;
         return inputSet.keySet().equals(that.inputSet.keySet());
@@ -1617,7 +1631,7 @@ public boolean equals(@CheckForNull @UnknownSignedness Object obj) {
     }
 
     @Override
-    public int hashCode(@UnknownSignedness PowerSet<E> this) {
+    public int hashCode(@UnknownSignedness @Readonly PowerSet<E> this) {
       /*
        * The sum of the sums of the hash codes in each subset is just the sum of
        * each input element's hash code times the number of sets that element
@@ -1627,7 +1641,7 @@ public int hashCode(@UnknownSignedness PowerSet<E> this) {
     }
 
     @Override
-    public String toString() {
+    public String toString(@Readonly PowerSet<E> this) {
       return "powerSet(" + inputSet + ")";
     }
   }
@@ -1657,7 +1671,7 @@ public String toString() {
    * @since 23.0
    */
   @Beta
-  public static <E> Set<Set<E>> combinations(Set<E> set, final int size) {
+  public static <E extends @Immutable Object> @Immutable Set<Set<E>> combinations(Set<E> set, final int size) {
     final ImmutableMap<E, Integer> index = Maps.indexMap(set);
     checkNonnegative(size, "size");
     checkArgument(size <= index.size(), "size (%s) must be <= set.size() (%s)", size, index.size());
@@ -1668,7 +1682,7 @@ public static <E> Set<Set<E>> combinations(Set<E> set, final int size) {
     }
     return new AbstractSet<Set<E>>() {
       @Override
-      public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+      public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object o) {
         if (o instanceof Set) {
           Set<?> s = (Set<?>) o;
           return s.size() == size && index.keySet().containsAll(s);
@@ -1714,7 +1728,7 @@ protected Set<E> computeNext() {
             final BitSet copy = (BitSet) bits.clone();
             return new AbstractSet<E>() {
               @Override
-              public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+              public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object o) {
                 Integer i = index.get(o);
                 return i != null && copy.get(i);
               }
@@ -1759,7 +1773,7 @@ public String toString() {
 
   /** An implementation for {@link Set#hashCode()}. */
   @Pure
-  static int hashCodeImpl(Set<?> s) {
+  static int hashCodeImpl(@Readonly Set<?> s) {
     int hashCode = 0;
     for (Object o : s) {
       hashCode += o != null ? o.hashCode() : 0;
@@ -1771,7 +1785,7 @@ static int hashCodeImpl(Set<?> s) {
   }
 
   /** An implementation for {@link Set#equals(Object)}. */
-  static boolean equalsImpl(Set<?> s, @CheckForNull @UnknownSignedness Object object) {
+  static boolean equalsImpl(@Readonly Set<?> s, @CheckForNull @UnknownSignedness @Readonly Object object) {
     if (s == object) {
       return true;
     }
@@ -1800,26 +1814,27 @@ static boolean equalsImpl(Set<?> s, @CheckForNull @UnknownSignedness Object obje
    * @return an unmodifiable view of the specified navigable set
    * @since 12.0
    */
-  public static <E extends @Nullable Object> NavigableSet<E> unmodifiableNavigableSet(
-      NavigableSet<E> set) {
+  public static <E extends @Nullable @Readonly Object> @Readonly NavigableSet<E> unmodifiableNavigableSet(
+      @Readonly NavigableSet<E> set) {
     if (set instanceof ImmutableCollection || set instanceof UnmodifiableNavigableSet) {
       return set;
     }
     return new UnmodifiableNavigableSet<E>(set);
   }
 
-  static final class UnmodifiableNavigableSet<E extends @Nullable Object>
+  @Immutable
+  static final class UnmodifiableNavigableSet<E extends @Nullable @Readonly Object>
       extends ForwardingSortedSet<E> implements NavigableSet<E>, Serializable {
-    private final NavigableSet<E> delegate;
-    private final SortedSet<E> unmodifiableDelegate;
+    private final @Readonly NavigableSet<E> delegate;
+    private final @Readonly SortedSet<E> unmodifiableDelegate;
 
-    UnmodifiableNavigableSet(NavigableSet<E> delegate) {
+    UnmodifiableNavigableSet(@Readonly NavigableSet<E> delegate) {
       this.delegate = checkNotNull(delegate);
       this.unmodifiableDelegate = Collections.unmodifiableSortedSet(delegate);
     }
 
     @Override
-    protected SortedSet<E> delegate() {
+    protected @Readonly SortedSet<E> delegate() {
       return unmodifiableDelegate;
     }
 
@@ -1884,7 +1899,7 @@ public E pollLast() {
     @CheckForNull private transient UnmodifiableNavigableSet<E> descendingSet;
 
     @Override
-    public NavigableSet<E> descendingSet() {
+    public @Readonly NavigableSet<E> descendingSet(@Readonly UnmodifiableNavigableSet<E> this) {
       UnmodifiableNavigableSet<E> result = descendingSet;
       if (result == null) {
         result = descendingSet = new UnmodifiableNavigableSet<E>(delegate.descendingSet());
@@ -1894,12 +1909,13 @@ public NavigableSet<E> descendingSet() {
     }
 
     @Override
-    public Iterator<E> descendingIterator() {
+    public @Readonly Iterator<E> descendingIterator(@Readonly UnmodifiableNavigableSet<E> this) {
       return Iterators.unmodifiableIterator(delegate.descendingIterator());
     }
 
     @Override
-    public NavigableSet<E> subSet(
+    public @Readonly NavigableSet<E> subSet(
+            @Readonly UnmodifiableNavigableSet<E> this,
         @ParametricNullness E fromElement,
         boolean fromInclusive,
         @ParametricNullness E toElement,
@@ -1909,12 +1925,12 @@ public NavigableSet<E> subSet(
     }
 
     @Override
-    public NavigableSet<E> headSet(@ParametricNullness E toElement, boolean inclusive) {
+    public @Readonly NavigableSet<E> headSet(@Readonly UnmodifiableNavigableSet<E> this, @ParametricNullness E toElement, boolean inclusive) {
       return unmodifiableNavigableSet(delegate.headSet(toElement, inclusive));
     }
 
     @Override
-    public NavigableSet<E> tailSet(@ParametricNullness E fromElement, boolean inclusive) {
+    public @Readonly NavigableSet<E> tailSet(@Readonly UnmodifiableNavigableSet<E> this, @ParametricNullness E fromElement, boolean inclusive) {
       return unmodifiableNavigableSet(delegate.tailSet(fromElement, inclusive));
     }
 
@@ -1967,7 +1983,7 @@ public NavigableSet<E> tailSet(@ParametricNullness E fromElement, boolean inclus
    * @since 13.0
    */
   @GwtIncompatible // NavigableSet
-  public static <E extends @Nullable Object> NavigableSet<E> synchronizedNavigableSet(
+  public static <E extends @Nullable @Readonly Object> NavigableSet<E> synchronizedNavigableSet(
       NavigableSet<E> navigableSet) {
     return Synchronized.navigableSet(navigableSet);
   }
@@ -1981,7 +1997,7 @@ static boolean removeAllImpl(Set<?> set, Iterator<?> iterator) {
     return changed;
   }
 
-  static boolean removeAllImpl(Set<?> set, Collection<?> collection) {
+  static boolean removeAllImpl(Set<?> set, @Readonly Collection<?> collection) {
     checkNotNull(collection); // for GWT
     if (collection instanceof Multiset) {
       collection = ((Multiset<?>) collection).elementSet();
@@ -2001,66 +2017,68 @@ static boolean removeAllImpl(Set<?> set, Collection<?> collection) {
   }
 
   @GwtIncompatible // NavigableSet
-  static class DescendingSet<E extends @Nullable Object> extends ForwardingNavigableSet<E> {
+  @ReceiverDependentMutable
+  static class DescendingSet<E extends @Nullable @Readonly Object> extends ForwardingNavigableSet<E> {
     private final NavigableSet<E> forward;
 
-    DescendingSet(NavigableSet<E> forward) {
+    DescendingSet(@ReceiverDependentMutable NavigableSet<E> forward) {
       this.forward = forward;
     }
 
     @Override
-    protected NavigableSet<E> delegate() {
+    protected @PolyMutable NavigableSet<E> delegate(@PolyMutable DescendingSet<E> this) {
       return forward;
     }
 
     @Override
     @CheckForNull
-    public E lower(@ParametricNullness E e) {
+    public E lower(@Readonly DescendingSet<E> this, @ParametricNullness E e) {
       return forward.higher(e);
     }
 
     @Override
     @CheckForNull
-    public E floor(@ParametricNullness E e) {
+    public E floor(@Readonly DescendingSet<E> this, @ParametricNullness E e) {
       return forward.ceiling(e);
     }
 
     @Override
     @CheckForNull
-    public E ceiling(@ParametricNullness E e) {
+    public E ceiling(@Readonly DescendingSet<E> this, @ParametricNullness E e) {
       return forward.floor(e);
     }
 
     @Override
     @CheckForNull
-    public E higher(@ParametricNullness E e) {
+    public E higher(@Readonly DescendingSet<E> this, @ParametricNullness E e) {
       return forward.lower(e);
     }
 
     @Override
     @CheckForNull
-    public E pollFirst() {
+    public E pollFirst(@Mutable DescendingSet<E> this) {
       return forward.pollLast();
     }
 
     @Override
     @CheckForNull
-    public E pollLast() {
+    public E pollLast(@Mutable DescendingSet<E> this) {
       return forward.pollFirst();
     }
 
     @Override
-    public NavigableSet<E> descendingSet() {
+    public @PolyMutable NavigableSet<E> descendingSet(@PolyMutable DescendingSet<E> this) {
       return forward;
     }
 
     @Override
-    public Iterator<E> descendingIterator() {
+    public @PolyMutable Iterator<E> descendingIterator(@PolyMutable DescendingSet<E> this) {
       return forward.iterator();
     }
 
     @Override
-    public NavigableSet<E> subSet(
+    public @PolyMutable NavigableSet<E> subSet(
+            @PolyMutable DescendingSet<E> this,
         @ParametricNullness E fromElement,
         boolean fromInclusive,
         @ParametricNullness E toElement,
@@ -2069,33 +2087,33 @@ public NavigableSet<E> subSet(
     }
 
     @Override
-    public SortedSet<E> subSet(@ParametricNullness E fromElement, @ParametricNullness E toElement) {
+    public @PolyMutable SortedSet<E> subSet(@PolyMutable DescendingSet<E> this, @ParametricNullness E fromElement, @ParametricNullness E toElement) {
       return standardSubSet(fromElement, toElement);
     }
 
     @Override
-    public NavigableSet<E> headSet(@ParametricNullness E toElement, boolean inclusive) {
+    public @PolyMutable NavigableSet<E> headSet(@PolyMutable DescendingSet<E> this, @ParametricNullness E toElement, boolean inclusive) {
       return forward.tailSet(toElement, inclusive).descendingSet();
     }
 
     @Override
-    public SortedSet<E> headSet(@ParametricNullness E toElement) {
+    public @PolyMutable SortedSet<E> headSet(@PolyMutable DescendingSet<E> this, @ParametricNullness E toElement) {
       return standardHeadSet(toElement);
     }
 
     @Override
-    public NavigableSet<E> tailSet(@ParametricNullness E fromElement, boolean inclusive) {
+    public @PolyMutable NavigableSet<E> tailSet(@PolyMutable DescendingSet<E> this, @ParametricNullness E fromElement, boolean inclusive) {
       return forward.headSet(fromElement, inclusive).descendingSet();
     }
 
     @Override
-    public SortedSet<E> tailSet(@ParametricNullness E fromElement) {
+    public @PolyMutable SortedSet<E> tailSet(@PolyMutable DescendingSet<E> this, @ParametricNullness E fromElement) {
       return standardTailSet(fromElement);
     }
 
     @SuppressWarnings("unchecked")
     @Override
-    public Comparator<? super E> comparator() {
+    public Comparator<? super E> comparator(@Readonly DescendingSet<E> this) {
       Comparator<? super E> forwardComparator = forward.comparator();
       if (forwardComparator == null) {
         return (Comparator) Ordering.natural().reverse();
@@ -2105,41 +2123,41 @@ public Comparator<? super E> comparator() {
     }
 
     // If we inline this, we get a javac error.
-    private static <T extends @Nullable Object> Ordering<T> reverse(Comparator<T> forward) {
+    private static <T extends @Nullable @Readonly Object> Ordering<T> reverse(Comparator<T> forward) {
       return Ordering.from(forward).reverse();
     }
 
     @Override
     @ParametricNullness
-    public E first() {
+    public E first(@Readonly DescendingSet<E> this) {
       return forward.last();
     }
 
     @Override
     @ParametricNullness
-    public E last() {
+    public E last(@Readonly DescendingSet<E> this) {
       return forward.first();
     }
 
     @Override
-    public Iterator<E> iterator() {
+    public Iterator<E> iterator(@PolyMutable DescendingSet<E> this) {
       return forward.descendingIterator();
     }
 
     @Override
     @SuppressWarnings("nullness:return")
-    public @PolyNull @PolySigned Object[] toArray(Sets.DescendingSet<@PolyNull @PolySigned E> this) {
+    public @PolyNull @PolySigned @PolyMutable Object[] toArray(Sets.DescendingSet<@PolyNull @PolySigned @PolyMutable E> this) {
       return standardToArray();
     }
 
     @Override
     @SuppressWarnings("nullness:return")
-    public <T extends @Nullable @UnknownSignedness Object> T[] toArray(@PolyNull T[] array) {
+    public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(@PolyNull T[] array) {
       return standardToArray(array);
     }
 
     @Override
-    public String toString() {
+    public String toString(@Readonly DescendingSet<E> this) {
       return standardToString();
     }
   }
@@ -2162,8 +2180,8 @@ public String toString() {
    */
   @Beta
   @GwtIncompatible // NavigableSet
-  public static <K extends Comparable<? super K>> NavigableSet<K> subSet(
-      NavigableSet<K> set, Range<K> range) {
+  public static <K extends Comparable<? super K>> @PolyMutable NavigableSet<K> subSet(
+          @PolyMutable NavigableSet<K> set, Range<K> range) {
     if (set.comparator() != null
         && set.comparator() != Ordering.natural()
         && range.hasLowerBound()
diff --git a/guava/src/com/google/common/collect/SingletonImmutableBiMap.java b/guava/src/com/google/common/collect/SingletonImmutableBiMap.java
index fdc6d3d9bbdd..5433f573c008 100644
--- a/guava/src/com/google/common/collect/SingletonImmutableBiMap.java
+++ b/guava/src/com/google/common/collect/SingletonImmutableBiMap.java
@@ -25,7 +25,12 @@
 import java.util.function.BiConsumer;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * Implementation of {@link ImmutableMap} with exactly one entry.
@@ -33,10 +38,12 @@
  * @author Jesse Wilson
  * @author Kevin Bourrillion
  */
+@AnnotatedFor("pico")
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // uses writeReplace(), not default serialization
 @ElementTypesAreNonnullByDefault
-final class SingletonImmutableBiMap<K, V> extends ImmutableBiMap<K, V> {
+@Immutable
+final class SingletonImmutableBiMap<K extends @Immutable Object, V extends @Immutable Object> extends ImmutableBiMap<K, V> {
 
   final transient K singleKey;
   final transient V singleValue;
@@ -56,7 +63,7 @@ private SingletonImmutableBiMap(K singleKey, V singleValue, ImmutableBiMap<V, K>
 
   @Override
   @CheckForNull
-  public V get(@CheckForNull @UnknownSignedness Object key) {
+  public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
     return singleKey.equals(key) ? singleValue : null;
   }
 
@@ -71,12 +78,12 @@ public void forEach(BiConsumer<? super K, ? super V> action) {
   }
 
   @Override
-  public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+  public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
     return singleKey.equals(key);
   }
 
   @Override
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@CheckForNull @UnknownSignedness @Readonly Object value) {
     return singleValue.equals(value);
   }
 
@@ -96,7 +103,8 @@ ImmutableSet<K> createKeySet() {
   }
 
   @CheckForNull private final transient ImmutableBiMap<V, K> inverse;
-  @LazyInit @RetainedWith @CheckForNull private transient ImmutableBiMap<V, K> lazyInverse;
+  @CFComment("Change to @LazyFinal later")
+  @LazyInit @RetainedWith @CheckForNull private transient @Assignable ImmutableBiMap<V, K> lazyInverse;
 
   @Override
   public ImmutableBiMap<V, K> inverse() {
diff --git a/guava/src/com/google/common/collect/SingletonImmutableList.java b/guava/src/com/google/common/collect/SingletonImmutableList.java
index cb99bb68de2c..d03e2c11d6a6 100644
--- a/guava/src/com/google/common/collect/SingletonImmutableList.java
+++ b/guava/src/com/google/common/collect/SingletonImmutableList.java
@@ -24,6 +24,8 @@
 import java.util.Spliterator;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
@@ -34,10 +36,11 @@
  *
  * @author Hayward Chan
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // uses writeReplace(), not default serialization
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class SingletonImmutableList<E> extends ImmutableList<E> {
 
   final transient E element;
@@ -86,14 +89,14 @@ boolean isPartialView() {
   }
 
 @Pure
-public boolean contains(@Nullable @UnknownSignedness Object arg0) { return super.contains(arg0); }
+public boolean contains(@Nullable @UnknownSignedness @Readonly Object arg0) { return super.contains(arg0); }
 
 @Pure
-public boolean equals(@Nullable @UnknownSignedness Object arg0) { return super.equals(arg0); }
+public boolean equals(@Nullable @UnknownSignedness @Readonly Object arg0) { return super.equals(arg0); }
 
 @Pure
-public int indexOf(@Nullable @UnknownSignedness Object arg0) { return super.indexOf(arg0); }
+public int indexOf(@Nullable @UnknownSignedness @Readonly Object arg0) { return super.indexOf(arg0); }
 
 @Pure
-public int lastIndexOf(@Nullable @UnknownSignedness Object arg0) { return super.lastIndexOf(arg0); }
+public int lastIndexOf(@Nullable @UnknownSignedness @Readonly Object arg0) { return super.lastIndexOf(arg0); }
 }
diff --git a/guava/src/com/google/common/collect/SingletonImmutableSet.java b/guava/src/com/google/common/collect/SingletonImmutableSet.java
index 50bdde7afcfd..0e26e435f7ec 100644
--- a/guava/src/com/google/common/collect/SingletonImmutableSet.java
+++ b/guava/src/com/google/common/collect/SingletonImmutableSet.java
@@ -26,6 +26,8 @@
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * Implementation of {@link ImmutableSet} with exactly one element.
@@ -33,10 +35,11 @@
  * @author Kevin Bourrillion
  * @author Nick Kralevich
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @SuppressWarnings("serial") // uses writeReplace(), not default serialization
 @ElementTypesAreNonnullByDefault
+@Immutable
 final class SingletonImmutableSet<E> extends ImmutableSet<E> {
   // We deliberately avoid caching the asList and hashCode here, to ensure that with
   // compressed oops, a SingletonImmutableSet packs all the way down to the optimal 16 bytes.
@@ -55,7 +58,7 @@ final class SingletonImmutableSet<E> extends ImmutableSet<E> {
 
   @Pure
   @Override
-  public boolean contains(@CheckForNull @UnknownSignedness Object target) {
+  public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object target) {
     return element.equals(target);
   }
 
@@ -75,7 +78,7 @@ boolean isPartialView() {
   }
 
   @Override
-  int copyIntoArray(@Nullable Object[] dst, int offset) {
+  int copyIntoArray(@Nullable @Readonly Object[] dst, int offset) {
     dst[offset] = element;
     return offset + 1;
   }
@@ -93,5 +96,5 @@ public String toString() {
   }
 
 @Pure
-public boolean equals(@Nullable @UnknownSignedness Object arg0) { return super.equals(arg0); }
+public boolean equals(@Nullable @UnknownSignedness @Readonly Object arg0) { return super.equals(arg0); }
 }
diff --git a/guava/src/com/google/common/collect/SingletonImmutableTable.java b/guava/src/com/google/common/collect/SingletonImmutableTable.java
index cfaeadb41df7..3be72b2f63e7 100644
--- a/guava/src/com/google/common/collect/SingletonImmutableTable.java
+++ b/guava/src/com/google/common/collect/SingletonImmutableTable.java
@@ -21,14 +21,21 @@
 import com.google.common.annotations.GwtCompatible;
 import java.util.Map;
 
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
+
 /**
  * An implementation of {@link ImmutableTable} that holds a single cell.
  *
  * @author Gregory Kick
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-class SingletonImmutableTable<R, C, V> extends ImmutableTable<R, C, V> {
+@CFComment("Value need to be immutable because it is later used for constructing a bimap")
+@Immutable
+class SingletonImmutableTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Immutable Object> extends ImmutableTable<R, C, V> {
   final R singleRowKey;
   final C singleColumnKey;
   final V singleValue;
diff --git a/guava/src/com/google/common/collect/SortedIterable.java b/guava/src/com/google/common/collect/SortedIterable.java
index 64ec08ef315b..5bb460e23e7a 100644
--- a/guava/src/com/google/common/collect/SortedIterable.java
+++ b/guava/src/com/google/common/collect/SortedIterable.java
@@ -18,6 +18,9 @@
 import java.util.Comparator;
 import java.util.Iterator;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * An {@code Iterable} whose elements are sorted relative to a {@code Comparator}, typically
@@ -25,9 +28,11 @@
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-interface SortedIterable<T extends @Nullable Object> extends Iterable<T> {
+@ReceiverDependentMutable
+interface SortedIterable<T extends @Nullable @Readonly Object> extends Iterable<T> {
   /**
    * Returns the {@code Comparator} by which the elements of this iterable are ordered, or {@code
    * Ordering.natural()} if the elements are ordered by their natural ordering.
diff --git a/guava/src/com/google/common/collect/SortedIterables.java b/guava/src/com/google/common/collect/SortedIterables.java
index 68b231a381e5..4e06a7ec09d1 100644
--- a/guava/src/com/google/common/collect/SortedIterables.java
+++ b/guava/src/com/google/common/collect/SortedIterables.java
@@ -20,6 +20,7 @@
 import java.util.Comparator;
 import java.util.SortedSet;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * Utilities for dealing with sorted collections of all types.
@@ -51,7 +52,7 @@ public static boolean hasSameComparator(Comparator<?> comparator, Iterable<?> el
 
   @SuppressWarnings("unchecked")
   // if sortedSet.comparator() is null, the set must be naturally ordered
-  public static <E extends @Nullable Object> Comparator<? super E> comparator(
+  public static <E extends @Nullable @Readonly Object> Comparator<? super E> comparator(
       SortedSet<E> sortedSet) {
     Comparator<? super E> result = sortedSet.comparator();
     if (result == null) {
diff --git a/guava/src/com/google/common/collect/SortedLists.java b/guava/src/com/google/common/collect/SortedLists.java
index 0ebaab20f938..ab2964f101d0 100644
--- a/guava/src/com/google/common/collect/SortedLists.java
+++ b/guava/src/com/google/common/collect/SortedLists.java
@@ -24,6 +24,7 @@
 import java.util.List;
 import java.util.RandomAccess;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
 
 /**
  * Static methods pertaining to sorted {@link List} instances.
@@ -233,7 +234,7 @@ public static <E extends Comparable> int binarySearch(
    * KeyAbsentBehavior)} using {@link Lists#transform(List, Function) Lists.transform(list,
    * keyFunction)}.
    */
-  public static <E extends @Nullable Object, K extends @Nullable Object> int binarySearch(
+  public static <E extends @Nullable Object, K extends @Nullable @Immutable Object> int binarySearch(
       List<E> list,
       Function<? super E, K> keyFunction,
       @ParametricNullness K key,
diff --git a/guava/src/com/google/common/collect/SortedMapDifference.java b/guava/src/com/google/common/collect/SortedMapDifference.java
index 46cac8a3da54..b7bb91219e31 100644
--- a/guava/src/com/google/common/collect/SortedMapDifference.java
+++ b/guava/src/com/google/common/collect/SortedMapDifference.java
@@ -19,6 +19,8 @@
 import com.google.common.annotations.GwtCompatible;
 import java.util.SortedMap;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * An object representing the differences between two sorted maps.
@@ -28,7 +30,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public interface SortedMapDifference<K extends @Nullable Object, V extends @Nullable Object>
+public interface SortedMapDifference<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends MapDifference<K, V> {
 
   @Override
diff --git a/guava/src/com/google/common/collect/SortedMultiset.java b/guava/src/com/google/common/collect/SortedMultiset.java
index 7cc512d8ee2e..504a286055fe 100644
--- a/guava/src/com/google/common/collect/SortedMultiset.java
+++ b/guava/src/com/google/common/collect/SortedMultiset.java
@@ -24,6 +24,8 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * A {@link Multiset} which maintains the ordering of its elements, according to either their
@@ -44,7 +46,8 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-public interface SortedMultiset<E extends @Nullable Object>
+@ReceiverDependentMutable
+public interface SortedMultiset<E extends @Nullable @Readonly Object>
     extends SortedMultisetBridge<E>, SortedIterable<E> {
   /**
    * Returns the comparator that orders this multiset, or {@link Ordering#natural()} if the natural
diff --git a/guava/src/com/google/common/collect/SortedMultisetBridge.java b/guava/src/com/google/common/collect/SortedMultisetBridge.java
index 72d50beb692f..5aa57385e882 100644
--- a/guava/src/com/google/common/collect/SortedMultisetBridge.java
+++ b/guava/src/com/google/common/collect/SortedMultisetBridge.java
@@ -19,6 +19,8 @@
 import com.google.common.annotations.GwtIncompatible;
 import java.util.SortedSet;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * Superinterface of {@link SortedMultiset} to introduce a bridge method for {@code elementSet()},
@@ -29,7 +31,8 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-interface SortedMultisetBridge<E extends @Nullable Object> extends Multiset<E> {
+@ReceiverDependentMutable
+interface SortedMultisetBridge<E extends @Nullable @Readonly Object> extends Multiset<E> {
   @Override
   SortedSet<E> elementSet();
 }
diff --git a/guava/src/com/google/common/collect/SortedMultisets.java b/guava/src/com/google/common/collect/SortedMultisets.java
index f602a42a1145..c2c79d49b512 100644
--- a/guava/src/com/google/common/collect/SortedMultisets.java
+++ b/guava/src/com/google/common/collect/SortedMultisets.java
@@ -30,6 +30,8 @@
 import java.util.SortedSet;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * Provides static utility methods for creating and working with {@link SortedMultiset} instances.
@@ -43,7 +45,8 @@ private SortedMultisets() {}
 
   /** A skeleton implementation for {@link SortedMultiset#elementSet}. */
   @SuppressWarnings("JdkObsolete") // TODO(b/6160855): Switch GWT emulations to NavigableSet.
-  static class ElementSet<E extends @Nullable Object> extends Multisets.ElementSet<E>
+  @ReceiverDependentMutable
+  static class ElementSet<E extends @Nullable @Readonly Object> extends Multisets.ElementSet<E>
       implements SortedSet<E> {
     @Weak private final SortedMultiset<E> multiset;
 
@@ -96,7 +99,8 @@ public E last() {
 
   /** A skeleton navigable implementation for {@link SortedMultiset#elementSet}. */
   @GwtIncompatible // Navigable
-  static class NavigableElementSet<E extends @Nullable Object> extends ElementSet<E>
+  @ReceiverDependentMutable
+  static class NavigableElementSet<E extends @Nullable @Readonly Object> extends ElementSet<E>
       implements NavigableSet<E> {
     NavigableElementSet(SortedMultiset<E> multiset) {
       super(multiset);
@@ -182,7 +186,7 @@ public NavigableSet<E> tailSet(@ParametricNullness E fromElement, boolean inclus
   }
 
   @CheckForNull
-  private static <E extends @Nullable Object> E getElementOrNull(@CheckForNull Entry<E> entry) {
+  private static <E extends @Nullable @Readonly Object> E getElementOrNull(@CheckForNull Entry<E> entry) {
     return (entry == null) ? null : entry.getElement();
   }
 }
diff --git a/guava/src/com/google/common/collect/SortedSetMultimap.java b/guava/src/com/google/common/collect/SortedSetMultimap.java
index f06d0f705307..e209519c01c9 100644
--- a/guava/src/com/google/common/collect/SortedSetMultimap.java
+++ b/guava/src/com/google/common/collect/SortedSetMultimap.java
@@ -26,6 +26,10 @@
 import java.util.SortedSet;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
@@ -52,7 +56,8 @@
 @GwtCompatible
 @AnnotatedFor({"nullness"})
 @ElementTypesAreNonnullByDefault
-public interface SortedSetMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public interface SortedSetMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends SetMultimap<K, V> {
   // Following Javadoc copied from Multimap.
 
@@ -67,7 +72,7 @@ public interface SortedSetMultimap<K extends @Nullable Object, V extends @Nullab
    * {@link Multimap} interface.
    */
   @Override
-  SortedSet<V> get(@ParametricNullness K key);
+  SortedSet<V> get(@Readonly SortedSetMultimap<K,V> this, @ParametricNullness K key);
 
   /**
    * Removes all values associated with a given key.
@@ -78,7 +83,7 @@ public interface SortedSetMultimap<K extends @Nullable Object, V extends @Nullab
    */
   @CanIgnoreReturnValue
   @Override
-  SortedSet<V> removeAll(@CheckForNull Object key);
+  SortedSet<V> removeAll(@Mutable SortedSetMultimap<K,V> this, @CheckForNull @Readonly Object key);
 
   /**
    * Stores a collection of values with the same key, replacing any existing values for that key.
@@ -91,7 +96,7 @@ public interface SortedSetMultimap<K extends @Nullable Object, V extends @Nullab
    */
   @CanIgnoreReturnValue
   @Override
-  SortedSet<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values);
+  SortedSet<V> replaceValues(@Mutable SortedSetMultimap<K,V> this, @ParametricNullness K key, Iterable<? extends V> values);
 
   /**
    * Returns a map view that associates each key with the corresponding values in the multimap.
diff --git a/guava/src/com/google/common/collect/SparseImmutableTable.java b/guava/src/com/google/common/collect/SparseImmutableTable.java
index 44881fde7f73..3caa9c004594 100644
--- a/guava/src/com/google/common/collect/SparseImmutableTable.java
+++ b/guava/src/com/google/common/collect/SparseImmutableTable.java
@@ -17,19 +17,24 @@
 import static java.util.Objects.requireNonNull;
 
 import com.google.common.annotations.GwtCompatible;
-import com.google.errorprone.annotations.Immutable;
+//import com.google.errorprone.annotations.Immutable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.framework.qual.AnnotatedFor;
+
 import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Map.Entry;
 
 /** A {@code RegularImmutableTable} optimized for sparse data. */
 @GwtCompatible
-@Immutable(containerOf = {"R", "C", "V"})
+//@Immutable(containerOf = {"R", "C", "V"})
 @ElementTypesAreNonnullByDefault
-final class SparseImmutableTable<R, C, V> extends RegularImmutableTable<R, C, V> {
-  static final ImmutableTable<Object, Object, Object> EMPTY =
+@AnnotatedFor("pico")
+@Immutable
+final class SparseImmutableTable<R extends @Immutable Object, C extends @Immutable Object, V> extends RegularImmutableTable<R, C, V> {
+  static final ImmutableTable<@Immutable Object, @Immutable Object, @Immutable Object> EMPTY =
       new SparseImmutableTable<>(
-          ImmutableList.<Cell<Object, Object, Object>>of(), ImmutableSet.of(), ImmutableSet.of());
+          ImmutableList.<Cell<@Immutable Object, @Immutable Object, @Immutable Object>>of(), ImmutableSet.of(), ImmutableSet.of());
 
   private final ImmutableMap<R, ImmutableMap<C, V>> rowMap;
   private final ImmutableMap<C, ImmutableMap<R, V>> columnMap;
diff --git a/guava/src/com/google/common/collect/StandardRowSortedTable.java b/guava/src/com/google/common/collect/StandardRowSortedTable.java
index 91c223d363b8..2585bf63d54e 100644
--- a/guava/src/com/google/common/collect/StandardRowSortedTable.java
+++ b/guava/src/com/google/common/collect/StandardRowSortedTable.java
@@ -28,6 +28,8 @@
 import java.util.SortedSet;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.KeyFor;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * Implementation of {@code Table} whose iteration ordering across row keys is sorted by their
@@ -48,7 +50,8 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-class StandardRowSortedTable<R, C, V> extends StandardTable<R, C, V>
+@ReceiverDependentMutable
+class StandardRowSortedTable<R extends @Immutable Object, C extends @Immutable Object, V> extends StandardTable<R, C, V>
     implements RowSortedTable<R, C, V> {
   /*
    * TODO(jlevy): Consider adding headTable, tailTable, and subTable methods,
diff --git a/guava/src/com/google/common/collect/StandardTable.java b/guava/src/com/google/common/collect/StandardTable.java
index 175b92bdc385..8060edc39fdb 100644
--- a/guava/src/com/google/common/collect/StandardTable.java
+++ b/guava/src/com/google/common/collect/StandardTable.java
@@ -47,7 +47,14 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.KeyFor;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * {@link Table} implementation backed by a map that associates row keys with column key / value
@@ -70,11 +77,12 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-class StandardTable<R, C, V> extends AbstractTable<R, C, V> implements Serializable {
+@ReceiverDependentMutable
+class StandardTable<R extends @Immutable Object, C extends @Immutable Object, V> extends AbstractTable<R, C, V> implements Serializable {
   @GwtTransient final Map<R, Map<C, V>> backingMap;
   @GwtTransient final Supplier<? extends Map<C, V>> factory;
 
-  StandardTable(Map<R, Map<C, V>> backingMap, Supplier<? extends Map<C, V>> factory) {
+  StandardTable(@ReceiverDependentMutable  Map<R, Map<C, V>> backingMap, @ReceiverDependentMutable Supplier<? extends Map<C, V>> factory) {
     this.backingMap = backingMap;
     this.factory = factory;
   }
@@ -82,12 +90,12 @@ class StandardTable<R, C, V> extends AbstractTable<R, C, V> implements Serializa
   // Accessors
 
   @Override
-  public boolean contains(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+  public boolean contains(@Readonly StandardTable<R, C, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
     return rowKey != null && columnKey != null && super.contains(rowKey, columnKey);
   }
 
   @Override
-  public boolean containsColumn(@CheckForNull Object columnKey) {
+  public boolean containsColumn(@Readonly StandardTable<R, C, V> this, @Readonly @CheckForNull Object columnKey) {
     if (columnKey == null) {
       return false;
     }
@@ -100,28 +108,28 @@ public boolean containsColumn(@CheckForNull Object columnKey) {
   }
 
   @Override
-  public boolean containsRow(@CheckForNull Object rowKey) {
+  public boolean containsRow(@Readonly StandardTable<R, C, V> this, @CheckForNull @Readonly Object rowKey) {
     return rowKey != null && safeContainsKey(backingMap, rowKey);
   }
 
   @Override
-  public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+  public boolean containsValue(@Readonly StandardTable<R, C, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
     return value != null && super.containsValue(value);
   }
 
   @Override
   @CheckForNull
-  public V get(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+  public V get(@Readonly StandardTable<R, C, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
     return (rowKey == null || columnKey == null) ? null : super.get(rowKey, columnKey);
   }
 
   @Override
-  public boolean isEmpty() {
+  public boolean isEmpty(@Readonly StandardTable<R, C, V> this) {
     return backingMap.isEmpty();
   }
 
   @Override
-  public int size() {
+  public int size(@Readonly StandardTable<R, C, V> this) {
     int size = 0;
     for (Map<C, V> map : backingMap.values()) {
       size += map.size();
@@ -132,11 +140,11 @@ public int size() {
   // Mutators
 
   @Override
-  public void clear() {
+  public void clear(@Mutable StandardTable<R, C, V> this) {
     backingMap.clear();
   }
 
-  private Map<C, V> getOrCreate(R rowKey) {
+  private Map<C, V> getOrCreate(@Mutable StandardTable<R, C, V> this, R rowKey) {
     Map<C, V> map = backingMap.get(rowKey);
     if (map == null) {
       map = factory.get();
@@ -148,7 +156,7 @@ private Map<C, V> getOrCreate(R rowKey) {
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V put(R rowKey, C columnKey, V value) {
+  public V put(@Mutable StandardTable<R, C, V> this, R rowKey, C columnKey, V value) {
     checkNotNull(rowKey);
     checkNotNull(columnKey);
     checkNotNull(value);
@@ -158,7 +166,7 @@ public V put(R rowKey, C columnKey, V value) {
   @CanIgnoreReturnValue
   @Override
   @CheckForNull
-  public V remove(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+  public V remove(@Mutable StandardTable<R, C, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
     if ((rowKey == null) || (columnKey == null)) {
       return null;
     }
@@ -174,7 +182,7 @@ public V remove(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
   }
 
   @CanIgnoreReturnValue
-  private Map<R, V> removeColumn(@CheckForNull Object column) {
+  private Map<R, V> removeColumn(@Mutable StandardTable<R, C, V> this, @CheckForNull @Readonly Object column) {
     Map<R, V> output = new LinkedHashMap<>();
     Iterator<Entry<R, Map<C, V>>> iterator = backingMap.entrySet().iterator();
     while (iterator.hasNext()) {
@@ -190,14 +198,14 @@ private Map<R, V> removeColumn(@CheckForNull Object column) {
     return output;
   }
 
-  private boolean containsMapping(
-      @CheckForNull Object rowKey, @CheckForNull Object columnKey, @CheckForNull Object value) {
+  private boolean containsMapping(@Readonly StandardTable<R, C, V> this,
+      @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey, @CheckForNull @Readonly Object value) {
     return value != null && value.equals(get(rowKey, columnKey));
   }
 
   /** Remove a row key / column key / value mapping, if present. */
-  private boolean removeMapping(
-      @CheckForNull Object rowKey, @CheckForNull Object columnKey, @CheckForNull Object value) {
+  private boolean removeMapping(@Mutable StandardTable<R, C, V> this,
+      @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey, @CheckForNull @Readonly Object value) {
     if (containsMapping(rowKey, columnKey, value)) {
       remove(rowKey, columnKey);
       return true;
@@ -212,14 +220,15 @@ private boolean removeMapping(
    * clear()} clears all table mappings.
    */
   @WeakOuter
+  @ReceiverDependentMutable
   private abstract class TableSet<T> extends ImprovedAbstractSet<T> {
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly TableSet<T> this) {
       return backingMap.isEmpty();
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable TableSet<T> this) {
       backingMap.clear();
     }
   }
@@ -234,27 +243,28 @@ public void clear() {
    * time the cell is returned by a method call to the set or its iterator.
    */
   @Override
-  public Set<Cell<R, C, V>> cellSet() {
+  public @PolyMutable Set<Cell<R, C, V>> cellSet(@PolyMutable StandardTable<R, C, V> this) {
     return super.cellSet();
   }
 
   @Override
-  Iterator<Cell<R, C, V>> cellIterator() {
+  Iterator<Cell<R, C, V>> cellIterator(@Readonly StandardTable<R, C, V> this) {
     return new CellIterator();
   }
 
+  @ReceiverDependentMutable
   private class CellIterator implements Iterator<Cell<R, C, V>> {
     final Iterator<Entry<R, Map<C, V>>> rowIterator = backingMap.entrySet().iterator();
     @CheckForNull Entry<R, Map<C, V>> rowEntry;
     Iterator<Entry<C, V>> columnIterator = Iterators.emptyModifiableIterator();
 
     @Override
-    public boolean hasNext() {
+    public boolean hasNext(@Readonly CellIterator this) {
       return rowIterator.hasNext() || columnIterator.hasNext();
     }
 
     @Override
-    public Cell<R, C, V> next() {
+    public Cell<R, C, V> next(@Mutable CellIterator this) {
       if (!columnIterator.hasNext()) {
         rowEntry = rowIterator.next();
         columnIterator = rowEntry.getValue().entrySet().iterator();
@@ -278,7 +288,7 @@ public Cell<R, C, V> next() {
     }
 
     @Override
-    public void remove() {
+    public void remove(@Mutable CellIterator this) {
       columnIterator.remove();
       /*
        * requireNonNull is safe because:
@@ -298,7 +308,7 @@ public void remove() {
   }
 
   @Override
-  Spliterator<Cell<R, C, V>> cellSpliterator() {
+  Spliterator<Cell<R, C, V>> cellSpliterator(@Readonly StandardTable<R, C, V> this) {
     return CollectSpliterators.flatMap(
         backingMap.entrySet().spliterator(),
         (Entry<R, Map<C, V>> rowEntry) ->
@@ -316,6 +326,7 @@ public Map<C, V> row(R rowKey) {
     return new Row(rowKey);
   }
 
+  @ReceiverDependentMutable
   class Row extends IteratorBasedAbstractMap<C, V> {
     final R rowKey;
 
@@ -346,14 +357,14 @@ void maintainEmptyInvariant() {
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       updateBackingRowMapField();
       return (key != null && backingRowMap != null) && Maps.safeContainsKey(backingRowMap, key);
     }
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull @UnknownSignedness Object key) {
+    public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       updateBackingRowMapField();
       return (key != null && backingRowMap != null) ? Maps.safeGet(backingRowMap, key) : null;
     }
@@ -371,7 +382,7 @@ public V put(C key, V value) {
 
     @Override
     @CheckForNull
-    public V remove(@CheckForNull @UnknownSignedness Object key) {
+    public V remove(@CheckForNull @UnknownSignedness @Readonly Object key) {
       updateBackingRowMapField();
       if (backingRowMap == null) {
         return null;
@@ -462,6 +473,7 @@ public Map<R, V> column(C columnKey) {
     return new Column(columnKey);
   }
 
+  @ReceiverDependentMutable
   private class Column extends ViewCachingAbstractMap<R, V> {
     final C columnKey;
 
@@ -477,18 +489,18 @@ public V put(R key, V value) {
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull @UnknownSignedness Object key) {
+    public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return StandardTable.this.get(key, columnKey);
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return StandardTable.this.contains(key, columnKey);
     }
 
     @Override
     @CheckForNull
-    public V remove(@CheckForNull @UnknownSignedness Object key) {
+    public V remove(@Mutable Column this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       return StandardTable.this.remove(key, columnKey);
     }
 
@@ -546,7 +558,7 @@ public void clear() {
       }
 
       @Override
-      public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+      public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object o) {
         if (o instanceof Entry) {
           Entry<?, ?> entry = (Entry<?, ?>) o;
           return containsMapping(entry.getKey(), columnKey, entry.getValue());
@@ -555,7 +567,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object o) {
       }
 
       @Override
-      public boolean remove(@CheckForNull @UnknownSignedness Object obj) {
+      public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object obj) {
         if (obj instanceof Entry) {
           Entry<?, ?> entry = (Entry<?, ?>) obj;
           return removeMapping(entry.getKey(), columnKey, entry.getValue());
@@ -629,12 +641,12 @@ private class KeySet extends Maps.KeySet<R, V> {
       }
 
       @Override
-      public boolean contains(@CheckForNull @UnknownSignedness Object obj) {
+      public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object obj) {
         return StandardTable.this.contains(obj, columnKey);
       }
 
       @Override
-      public boolean remove(@CheckForNull @UnknownSignedness Object obj) {
+      public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object obj) {
         return StandardTable.this.remove(obj, columnKey) != null;
       }
 
@@ -656,7 +668,7 @@ private class Values extends Maps.Values<R, V> {
       }
 
       @Override
-      public boolean remove(@CheckForNull @UnknownSignedness Object obj) {
+      public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object obj) {
         return obj != null && removeFromColumnIf(Maps.<V>valuePredicateOnEntries(equalTo(obj)));
       }
 
@@ -673,11 +685,12 @@ public boolean retainAll(final Collection<?> c) {
   }
 
   @Override
-  public Set<R> rowKeySet() {
+  public @PolyMutable Set<R> rowKeySet(@PolyMutable StandardTable<R, C, V> this) {
     return rowMap().keySet();
   }
 
-  @CheckForNull private transient Set<C> columnKeySet;
+  @CFComment("Change to @LazyFinal later")
+  @CheckForNull private transient @Assignable Set<C> columnKeySet;
 
   /**
    * {@inheritDoc}
@@ -694,6 +707,7 @@ public Set<C> columnKeySet() {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   private class ColumnKeySet extends TableSet<C> {
     @Override
     public Iterator<C> iterator() {
@@ -706,7 +720,7 @@ public Iterator<C> iterator() {
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object obj) {
+    public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object obj) {
       if (obj == null) {
         return false;
       }
@@ -761,7 +775,7 @@ public boolean retainAll(Collection<?> c) {
     }
 
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object obj) {
+    public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object obj) {
       return containsColumn(obj);
     }
   }
@@ -771,6 +785,7 @@ Iterator<C> createColumnKeyIterator() {
     return new ColumnKeyIterator();
   }
 
+  @ReceiverDependentMutable
   private class ColumnKeyIterator extends AbstractIterator<C> {
     // Use the same map type to support TreeMaps with comparators that aren't
     // consistent with equals().
@@ -804,14 +819,15 @@ protected C computeNext() {
    * row, and so on.
    */
   @Override
-  public Collection<V> values() {
+  public @PolyMutable Collection<V> values(@PolyMutable StandardTable<R, C, V> this) {
     return super.values();
   }
 
-  @CheckForNull private transient Map<R, Map<C, V>> rowMap;
+  @CFComment("Change to @LazyFinal later")
+  @CheckForNull private transient @Assignable Map<R, Map<C, V>> rowMap;
 
   @Override
-  public Map<R, Map<C, V>> rowMap() {
+  public @PolyMutable Map<R, Map<C, V>> rowMap(@PolyMutable StandardTable<R, C, V> this) {
     Map<R, Map<C, V>> result = rowMap;
     return (result == null) ? rowMap = createRowMap() : result;
   }
@@ -821,9 +837,10 @@ Map<R, Map<C, V>> createRowMap() {
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   class RowMap extends ViewCachingAbstractMap<R, Map<C, V>> {
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return containsRow(key);
     }
 
@@ -831,14 +848,14 @@ public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
     @SuppressWarnings("unchecked")
     @Override
     @CheckForNull
-    public Map<C, V> get(@CheckForNull @UnknownSignedness Object key) {
+    public Map<C, V> get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       // requireNonNull is safe because of the containsRow check.
       return containsRow(key) ? row((R) requireNonNull(key)) : null;
     }
 
     @Override
     @CheckForNull
-    public Map<C, V> remove(@CheckForNull @UnknownSignedness Object key) {
+    public Map<C, V> remove(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return (key == null) ? null : backingMap.remove(key);
     }
 
@@ -867,7 +884,7 @@ public Map<C, V> apply(R rowKey) {
       }
 
       @Override
-      public boolean contains(@CheckForNull @UnknownSignedness Object obj) {
+      public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object obj) {
         if (obj instanceof Entry) {
           Entry<?, ?> entry = (Entry<?, ?>) obj;
           return entry.getKey() != null
@@ -878,7 +895,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object obj) {
       }
 
       @Override
-      public boolean remove(@CheckForNull @UnknownSignedness Object obj) {
+      public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object obj) {
         if (obj instanceof Entry) {
           Entry<?, ?> entry = (Entry<?, ?>) obj;
           return entry.getKey() != null
@@ -890,34 +907,36 @@ public boolean remove(@CheckForNull @UnknownSignedness Object obj) {
     }
   }
 
-  @CheckForNull private transient ColumnMap columnMap;
+  @CFComment("Change to @LazyFinal later")
+  @CheckForNull private transient @Assignable ColumnMap columnMap;
 
   @Override
-  public Map<C, Map<R, V>> columnMap() {
+  public @PolyMutable Map<C, Map<R, V>> columnMap(@PolyMutable StandardTable<R, C, V> this) {
     ColumnMap result = columnMap;
     return (result == null) ? columnMap = new ColumnMap() : result;
   }
 
   @WeakOuter
+  @ReceiverDependentMutable
   private class ColumnMap extends ViewCachingAbstractMap<C, Map<R, V>> {
     // The cast to C occurs only when the key is in the map, implying that it
     // has the correct type.
     @SuppressWarnings("unchecked")
     @Override
     @CheckForNull
-    public Map<R, V> get(@CheckForNull @UnknownSignedness Object key) {
+    public Map<R, V> get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       // requireNonNull is safe because of the containsColumn check.
       return containsColumn(key) ? column((C) requireNonNull(key)) : null;
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return containsColumn(key);
     }
 
     @Override
     @CheckForNull
-    public Map<R, V> remove(@CheckForNull @UnknownSignedness Object key) {
+    public Map<R, V> remove(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return containsColumn(key) ? removeColumn(key) : null;
     }
 
@@ -968,7 +987,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object obj) {
       }
 
       @Override
-      public boolean remove(@CheckForNull @UnknownSignedness Object obj) {
+      public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object obj) {
         /*
          * `o instanceof Entry` is guaranteed by `contains`, but we check it here to satisfy our
          * nullness checker.
@@ -1014,7 +1033,7 @@ private class ColumnMapValues extends Maps.Values<C, Map<R, V>> {
       }
 
       @Override
-      public boolean remove(@CheckForNull @UnknownSignedness Object obj) {
+      public boolean remove(@CheckForNull @UnknownSignedness @Readonly Object obj) {
         for (Entry<C, Map<R, V>> entry : ColumnMap.this.entrySet()) {
           if (entry.getValue().equals(obj)) {
             removeColumn(entry.getKey());
diff --git a/guava/src/com/google/common/collect/Streams.java b/guava/src/com/google/common/collect/Streams.java
index cd7a07c34219..9bd9a75324bd 100644
--- a/guava/src/com/google/common/collect/Streams.java
+++ b/guava/src/com/google/common/collect/Streams.java
@@ -50,6 +50,7 @@
 import java.util.stream.StreamSupport;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * Static utility methods related to {@code Stream} instances.
@@ -63,7 +64,7 @@ public final class Streams {
    * Returns a sequential {@link Stream} of the contents of {@code iterable}, delegating to {@link
    * Collection#stream} if possible.
    */
-  public static <T extends @Nullable Object> Stream<T> stream(Iterable<T> iterable) {
+  public static <T extends @Nullable @Readonly Object> Stream<T> stream(Iterable<T> iterable) {
     return (iterable instanceof Collection)
         ? ((Collection<T>) iterable).stream()
         : StreamSupport.stream(iterable.spliterator(), false);
@@ -77,7 +78,7 @@ public final class Streams {
   @Beta
   @Deprecated
   @InlineMe(replacement = "collection.stream()")
-  public static <T extends @Nullable Object> Stream<T> stream(Collection<T> collection) {
+  public static <T extends @Nullable @Readonly Object> Stream<T> stream(Collection<T> collection) {
     return collection.stream();
   }
 
@@ -86,7 +87,7 @@ public final class Streams {
    * {@code iterator} directly after passing it to this method.
    */
   @Beta
-  public static <T extends @Nullable Object> Stream<T> stream(Iterator<T> iterator) {
+  public static <T extends @Nullable @Readonly Object> Stream<T> stream(Iterator<T> iterator) {
     return StreamSupport.stream(Spliterators.spliteratorUnknownSize(iterator, 0), false);
   }
 
@@ -168,7 +169,7 @@ private static void closeAll(BaseStream<?, ?>[] toClose) {
    * @see Stream#concat(Stream, Stream)
    */
   @SafeVarargs
-  public static <T extends @Nullable Object> Stream<T> concat(Stream<? extends T>... streams) {
+  public static <T extends @Nullable @Readonly Object> Stream<T> concat(Stream<? extends T>... streams) {
     // TODO(lowasser): consider an implementation that can support SUBSIZED
     boolean isParallel = false;
     int characteristics = Spliterator.ORDERED | Spliterator.SIZED | Spliterator.NONNULL;
@@ -314,7 +315,7 @@ public static DoubleStream concat(DoubleStream... streams) {
    * This may harm parallel performance.
    */
   @Beta
-  public static <A extends @Nullable Object, B extends @Nullable Object, R extends @Nullable Object>
+  public static <A extends @Nullable @Readonly Object, B extends @Nullable @Readonly Object, R extends @Nullable @Readonly Object>
       Stream<R> zip(
           Stream<A> streamA, Stream<B> streamB, BiFunction<? super A, ? super B, R> function) {
     checkNotNull(streamA);
@@ -377,7 +378,7 @@ public boolean tryAdvance(Consumer<? super R> action) {
    * @since 22.0
    */
   @Beta
-  public static <A extends @Nullable Object, B extends @Nullable Object> void forEachPair(
+  public static <A extends @Nullable @Readonly Object, B extends @Nullable @Readonly Object> void forEachPair(
       Stream<A> streamA, Stream<B> streamB, BiConsumer<? super A, ? super B> consumer) {
     checkNotNull(consumer);
 
@@ -393,7 +394,7 @@ public boolean tryAdvance(Consumer<? super R> action) {
   }
 
   // Use this carefully - it doesn't implement value semantics
-  private static class TemporaryPair<A extends @Nullable Object, B extends @Nullable Object> {
+  private static class TemporaryPair<A extends @Nullable @Readonly Object, B extends @Nullable @Readonly Object> {
     @ParametricNullness final A a;
     @ParametricNullness final B b;
 
@@ -425,7 +426,7 @@ private static class TemporaryPair<A extends @Nullable Object, B extends @Nullab
    * <p>The order of the resulting stream is defined if and only if the order of the original stream
    * was defined.
    */
-  public static <T extends @Nullable Object, R extends @Nullable Object> Stream<R> mapWithIndex(
+  public static <T extends @Nullable @Readonly Object, R extends @Nullable @Readonly Object> Stream<R> mapWithIndex(
       Stream<T> stream, FunctionWithIndex<? super T, ? extends R> function) {
     checkNotNull(stream);
     checkNotNull(function);
@@ -508,7 +509,7 @@ Splitr createSplit(Spliterator<T> from, long i) {
    * <p>The order of the resulting stream is defined if and only if the order of the original stream
    * was defined.
    */
-  public static <R extends @Nullable Object> Stream<R> mapWithIndex(
+  public static <R extends @Nullable @Readonly Object> Stream<R> mapWithIndex(
       IntStream stream, IntFunctionWithIndex<R> function) {
     checkNotNull(stream);
     checkNotNull(function);
@@ -587,7 +588,7 @@ Splitr createSplit(Spliterator.OfInt from, long i) {
    * <p>The order of the resulting stream is defined if and only if the order of the original stream
    * was defined.
    */
-  public static <R extends @Nullable Object> Stream<R> mapWithIndex(
+  public static <R extends @Nullable @Readonly Object> Stream<R> mapWithIndex(
       LongStream stream, LongFunctionWithIndex<R> function) {
     checkNotNull(stream);
     checkNotNull(function);
@@ -666,7 +667,7 @@ Splitr createSplit(Spliterator.OfLong from, long i) {
    * <p>The order of the resulting stream is defined if and only if the order of the original stream
    * was defined.
    */
-  public static <R extends @Nullable Object> Stream<R> mapWithIndex(
+  public static <R extends @Nullable @Readonly Object> Stream<R> mapWithIndex(
       DoubleStream stream, DoubleFunctionWithIndex<R> function) {
     checkNotNull(stream);
     checkNotNull(function);
@@ -731,16 +732,16 @@ Splitr createSplit(Spliterator.OfDouble from, long i) {
    *
    * @since 21.0
    */
-  public interface FunctionWithIndex<T extends @Nullable Object, R extends @Nullable Object> {
+  public interface FunctionWithIndex<T extends @Nullable @Readonly Object, R extends @Nullable @Readonly Object> {
     /** Applies this function to the given argument and its index within a stream. */
     @ParametricNullness
     R apply(@ParametricNullness T from, long index);
   }
 
   private abstract static class MapWithIndexSpliterator<
-          F extends Spliterator<?>,
-          R extends @Nullable Object,
-          S extends MapWithIndexSpliterator<F, R, S>>
+          F extends @Readonly Spliterator<?>,
+          R extends @Nullable @Readonly Object,
+          S extends @Readonly MapWithIndexSpliterator<F, R, S>>
       implements Spliterator<R> {
     final F fromSpliterator;
     long index;
@@ -786,7 +787,7 @@ public int characteristics() {
    *
    * @since 21.0
    */
-  public interface IntFunctionWithIndex<R extends @Nullable Object> {
+  public interface IntFunctionWithIndex<R extends @Nullable @Readonly Object> {
     /** Applies this function to the given argument and its index within a stream. */
     @ParametricNullness
     R apply(int from, long index);
@@ -800,7 +801,7 @@ public interface IntFunctionWithIndex<R extends @Nullable Object> {
    *
    * @since 21.0
    */
-  public interface LongFunctionWithIndex<R extends @Nullable Object> {
+  public interface LongFunctionWithIndex<R extends @Nullable @Readonly Object> {
     /** Applies this function to the given argument and its index within a stream. */
     @ParametricNullness
     R apply(long from, long index);
@@ -814,7 +815,7 @@ public interface LongFunctionWithIndex<R extends @Nullable Object> {
    *
    * @since 21.0
    */
-  public interface DoubleFunctionWithIndex<R extends @Nullable Object> {
+  public interface DoubleFunctionWithIndex<R extends @Nullable @Readonly Object> {
     /** Applies this function to the given argument and its index within a stream. */
     @ParametricNullness
     R apply(double from, long index);
diff --git a/guava/src/com/google/common/collect/Synchronized.java b/guava/src/com/google/common/collect/Synchronized.java
index 2fbec1c64a9e..86717fe77378 100644
--- a/guava/src/com/google/common/collect/Synchronized.java
+++ b/guava/src/com/google/common/collect/Synchronized.java
@@ -52,6 +52,11 @@
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
@@ -85,16 +90,17 @@
 final class Synchronized {
   private Synchronized() {}
 
+  @ReceiverDependentMutable
   static class SynchronizedObject implements Serializable {
     final Object delegate;
-    final Object mutex;
+    final @Readonly Object mutex;
 
-    SynchronizedObject(Object delegate, @CheckForNull Object mutex) {
+    SynchronizedObject(@ReceiverDependentMutable Object delegate, @CheckForNull @Readonly Object mutex) {
       this.delegate = checkNotNull(delegate);
       this.mutex = (mutex == null) ? this : mutex;
     }
 
-    Object delegate() {
+    @PolyMutable Object delegate(@PolyMutable SynchronizedObject this) {
       return delegate;
     }
 
@@ -102,7 +108,7 @@ Object delegate() {
 
     @Pure
     @Override
-    public String toString() {
+    public String toString(@Readonly SynchronizedObject this) {
       synchronized (mutex) {
         return delegate.toString();
       }
@@ -124,40 +130,41 @@ private void writeObject(ObjectOutputStream stream) throws IOException {
     private static final long serialVersionUID = 0;
   }
 
-  private static <E extends @Nullable Object> Collection<E> collection(
-      Collection<E> collection, @CheckForNull Object mutex) {
+  private static <E extends @Nullable @Readonly Object> Collection<E> collection(
+          Collection<E> collection, @CheckForNull @Readonly Object mutex) {
     return new SynchronizedCollection<E>(collection, mutex);
   }
 
   @VisibleForTesting
-  static class SynchronizedCollection<E extends @Nullable Object> extends SynchronizedObject
+  @ReceiverDependentMutable
+  static class SynchronizedCollection<E extends @Nullable @Readonly Object> extends SynchronizedObject
       implements Collection<E> {
-    private SynchronizedCollection(Collection<E> delegate, @CheckForNull Object mutex) {
+    private SynchronizedCollection(@ReceiverDependentMutable Collection<E> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @SuppressWarnings("unchecked")
     @Override
-    Collection<E> delegate() {
-      return (Collection<E>) super.delegate();
+    @PolyMutable Collection<E> delegate(@PolyMutable SynchronizedCollection<E> this) {
+      return (@PolyMutable Collection<E>) super.delegate();
     }
 
     @Override
-    public boolean add(E e) {
+    public boolean add(@Mutable SynchronizedCollection<E> this, E e) {
       synchronized (mutex) {
         return delegate().add(e);
       }
     }
 
     @Override
-    public boolean addAll(Collection<? extends E> c) {
+    public boolean addAll(@Mutable SynchronizedCollection<E> this, @Readonly Collection<? extends E> c) {
       synchronized (mutex) {
         return delegate().addAll(c);
       }
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable SynchronizedCollection<E> this) {
       synchronized (mutex) {
         delegate().clear();
       }
@@ -165,7 +172,7 @@ public void clear() {
 
     @Pure
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly SynchronizedCollection<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       synchronized (mutex) {
         return delegate().contains(o);
       }
@@ -173,7 +180,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object o) {
 
     @Pure
     @Override
-    public boolean containsAll(Collection<?> c) {
+    public boolean containsAll(@Readonly SynchronizedCollection<E> this, @Readonly Collection<?> c) {
       synchronized (mutex) {
         return delegate().containsAll(c);
       }
@@ -181,33 +188,33 @@ public boolean containsAll(Collection<?> c) {
 
     @Pure
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly SynchronizedCollection<E> this) {
       synchronized (mutex) {
         return delegate().isEmpty();
       }
     }
 
     @Override
-    public Iterator<E> iterator() {
+    public Iterator<E> iterator(@Readonly SynchronizedCollection<E> this) {
       return delegate().iterator(); // manually synchronized
     }
 
     @Override
-    public Spliterator<E> spliterator() {
+    public Spliterator<E> spliterator(@Readonly SynchronizedCollection<E> this) {
       synchronized (mutex) {
         return delegate().spliterator();
       }
     }
 
     @Override
-    public Stream<E> stream() {
+    public Stream<E> stream(@Readonly SynchronizedCollection<E> this) {
       synchronized (mutex) {
         return delegate().stream();
       }
     }
 
     @Override
-    public Stream<E> parallelStream() {
+    public Stream<E> parallelStream(@Readonly SynchronizedCollection<E> this) {
       synchronized (mutex) {
         return delegate().parallelStream();
       }
@@ -221,21 +228,21 @@ public void forEach(Consumer<? super E> action) {
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable SynchronizedCollection<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       synchronized (mutex) {
         return delegate().remove(o);
       }
     }
 
     @Override
-    public boolean removeAll(Collection<?> c) {
+    public boolean removeAll(@Mutable SynchronizedCollection<E> this, @Readonly Collection<?> c) {
       synchronized (mutex) {
         return delegate().removeAll(c);
       }
     }
 
     @Override
-    public boolean retainAll(Collection<?> c) {
+    public boolean retainAll(@Mutable SynchronizedCollection<E> this, @Readonly Collection<?> c) {
       synchronized (mutex) {
         return delegate().retainAll(c);
       }
@@ -243,14 +250,14 @@ public boolean retainAll(Collection<?> c) {
 
     @Pure
     @Override
-    public boolean removeIf(Predicate<? super E> filter) {
+    public boolean removeIf(@Mutable SynchronizedCollection<E> this, Predicate<? super E> filter) {
       synchronized (mutex) {
         return delegate().removeIf(filter);
       }
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly SynchronizedCollection<E> this) {
       synchronized (mutex) {
         return delegate().size();
       }
@@ -266,7 +273,7 @@ public boolean removeIf(Predicate<? super E> filter) {
 
     @Override
     @SuppressWarnings("nullness:return")
-    public <T extends @Nullable @UnknownSignedness Object> T[] toArray(@PolyNull T[] a) {
+    public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(@PolyNull T[] a) {
       synchronized (mutex) {
         return delegate().toArray(a);
       }
@@ -276,25 +283,26 @@ public boolean removeIf(Predicate<? super E> filter) {
   }
 
   @VisibleForTesting
-  static <E extends @Nullable Object> Set<E> set(Set<E> set, @CheckForNull Object mutex) {
-    return new SynchronizedSet<E>(set, mutex);
+  static <E extends @Nullable @Readonly Object> @PolyMutable Set<E> set(@PolyMutable Set<E> set, @CheckForNull @Readonly Object mutex) {
+    return new @PolyMutable SynchronizedSet<E>(set, mutex);
   }
 
-  static class SynchronizedSet<E extends @Nullable Object> extends SynchronizedCollection<E>
+  @ReceiverDependentMutable
+  static class SynchronizedSet<E extends @Nullable @Readonly Object> extends SynchronizedCollection<E>
       implements Set<E> {
 
-    SynchronizedSet(Set<E> delegate, @CheckForNull Object mutex) {
+    SynchronizedSet(@ReceiverDependentMutable Set<E> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    Set<E> delegate() {
-      return (Set<E>) super.delegate();
+    @PolyMutable Set<E> delegate(@PolyMutable SynchronizedSet<E> this) {
+      return (@PolyMutable Set<E>) super.delegate();
     }
 
     @Pure
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object o) {
+    public boolean equals(@Readonly SynchronizedSet<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (o == this) {
         return true;
       }
@@ -305,7 +313,7 @@ public boolean equals(@CheckForNull @UnknownSignedness Object o) {
 
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness SynchronizedSet<E> this) {
+    public int hashCode(@UnknownSignedness @Readonly SynchronizedSet<E> this) {
       synchronized (mutex) {
         return delegate().hashCode();
       }
@@ -314,20 +322,21 @@ public int hashCode(@UnknownSignedness SynchronizedSet<E> this) {
     private static final long serialVersionUID = 0;
   }
 
-  private static <E extends @Nullable Object> SortedSet<E> sortedSet(
-      SortedSet<E> set, @CheckForNull Object mutex) {
+  private static <E extends @Nullable @Readonly Object> SortedSet<E> sortedSet(
+      SortedSet<E> set, @CheckForNull @Readonly Object mutex) {
     return new SynchronizedSortedSet<E>(set, mutex);
   }
 
-  static class SynchronizedSortedSet<E extends @Nullable Object> extends SynchronizedSet<E>
+  @ReceiverDependentMutable
+  static class SynchronizedSortedSet<E extends @Nullable @Readonly Object> extends SynchronizedSet<E>
       implements SortedSet<E> {
-    SynchronizedSortedSet(SortedSet<E> delegate, @CheckForNull Object mutex) {
+    SynchronizedSortedSet(@ReceiverDependentMutable SortedSet<E> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    SortedSet<E> delegate() {
-      return (SortedSet<E>) super.delegate();
+    @PolyMutable SortedSet<E> delegate(@PolyMutable SynchronizedSortedSet<E> this) {
+      return (@PolyMutable SortedSet<E>) super.delegate();
     }
 
     @SideEffectFree
@@ -341,7 +350,7 @@ public Comparator<? super E> comparator() {
 
     @SideEffectFree
     @Override
-    public SortedSet<E> subSet(E fromElement, E toElement) {
+    public @PolyMutable SortedSet<E> subSet(@PolyMutable SynchronizedSortedSet<E> this, E fromElement, E toElement) {
       synchronized (mutex) {
         return sortedSet(delegate().subSet(fromElement, toElement), mutex);
       }
@@ -349,7 +358,7 @@ public SortedSet<E> subSet(E fromElement, E toElement) {
 
     @SideEffectFree
     @Override
-    public SortedSet<E> headSet(E toElement) {
+    public @PolyMutable SortedSet<E> headSet(@PolyMutable SynchronizedSortedSet<E> this, E toElement) {
       synchronized (mutex) {
         return sortedSet(delegate().headSet(toElement), mutex);
       }
@@ -357,7 +366,7 @@ public SortedSet<E> headSet(E toElement) {
 
     @SideEffectFree
     @Override
-    public SortedSet<E> tailSet(E fromElement) {
+    public @PolyMutable SortedSet<E> tailSet(@PolyMutable SynchronizedSortedSet<E> this, E fromElement) {
       synchronized (mutex) {
         return sortedSet(delegate().tailSet(fromElement), mutex);
       }
@@ -365,7 +374,7 @@ public SortedSet<E> tailSet(E fromElement) {
 
     @SideEffectFree
     @Override
-    public E first() {
+    public E first(@Readonly SynchronizedSortedSet<E> this) {
       synchronized (mutex) {
         return delegate().first();
       }
@@ -373,7 +382,7 @@ public E first() {
 
     @SideEffectFree
     @Override
-    public E last() {
+    public E last(@Readonly SynchronizedSortedSet<E> this) {
       synchronized (mutex) {
         return delegate().last();
       }
@@ -382,40 +391,41 @@ public E last() {
     private static final long serialVersionUID = 0;
   }
 
-  private static <E extends @Nullable Object> List<E> list(
-      List<E> list, @CheckForNull Object mutex) {
+  private static <E extends @Nullable @Readonly Object> List<E> list(
+      List<E> list, @CheckForNull @Readonly Object mutex) {
     return (list instanceof RandomAccess)
         ? new SynchronizedRandomAccessList<E>(list, mutex)
         : new SynchronizedList<E>(list, mutex);
   }
 
-  private static class SynchronizedList<E extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class SynchronizedList<E extends @Nullable @Readonly Object>
       extends SynchronizedCollection<E> implements List<E> {
-    SynchronizedList(List<E> delegate, @CheckForNull Object mutex) {
+    SynchronizedList(@ReceiverDependentMutable List<E> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    List<E> delegate() {
+    @PolyMutable List<E> delegate(@PolyMutable SynchronizedList<E> this) {
       return (List<E>) super.delegate();
     }
 
     @Override
-    public void add(int index, E element) {
+    public void add(@Mutable SynchronizedList<E> this, int index, E element) {
       synchronized (mutex) {
         delegate().add(index, element);
       }
     }
 
     @Override
-    public boolean addAll(int index, Collection<? extends E> c) {
+    public boolean addAll(@Mutable SynchronizedList<E> this, int index, @Readonly Collection<? extends E> c) {
       synchronized (mutex) {
         return delegate().addAll(index, c);
       }
     }
 
     @Override
-    public E get(int index) {
+    public E get(@Readonly SynchronizedList<E> this, int index) {
       synchronized (mutex) {
         return delegate().get(index);
       }
@@ -423,7 +433,7 @@ public E get(int index) {
 
     @Pure
     @Override
-    public int indexOf(@CheckForNull @UnknownSignedness Object o) {
+    public int indexOf(@Readonly SynchronizedList<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       synchronized (mutex) {
         return delegate().indexOf(o);
       }
@@ -431,31 +441,31 @@ public int indexOf(@CheckForNull @UnknownSignedness Object o) {
 
     @Pure
     @Override
-    public int lastIndexOf(@CheckForNull @UnknownSignedness Object o) {
+    public int lastIndexOf(@Readonly SynchronizedList<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       synchronized (mutex) {
         return delegate().lastIndexOf(o);
       }
     }
 
     @Override
-    public ListIterator<E> listIterator() {
+    public ListIterator<E> listIterator(@Readonly SynchronizedList<E> this) {
       return delegate().listIterator(); // manually synchronized
     }
 
     @Override
-    public ListIterator<E> listIterator(int index) {
+    public ListIterator<E> listIterator(@Readonly SynchronizedList<E> this, int index) {
       return delegate().listIterator(index); // manually synchronized
     }
 
     @Override
-    public E remove(int index) {
+    public E remove(@Mutable SynchronizedList<E> this, int index) {
       synchronized (mutex) {
         return delegate().remove(index);
       }
     }
 
     @Override
-    public E set(int index, E element) {
+    public E set(@Mutable SynchronizedList<E> this, int index, E element) {
       synchronized (mutex) {
         return delegate().set(index, element);
       }
@@ -463,21 +473,21 @@ public E set(int index, E element) {
 
     @SideEffectFree
     @Override
-    public void replaceAll(UnaryOperator<E> operator) {
+    public void replaceAll(@Mutable SynchronizedList<E> this, UnaryOperator<E> operator) {
       synchronized (mutex) {
         delegate().replaceAll(operator);
       }
     }
 
     @Override
-    public void sort(Comparator<? super E> c) {
+    public void sort(@Mutable SynchronizedList<E> this, Comparator<? super E> c) {
       synchronized (mutex) {
         delegate().sort(c);
       }
     }
 
     @Override
-    public List<E> subList(int fromIndex, int toIndex) {
+    public @PolyMutable List<E> subList(@PolyMutable SynchronizedList<E> this, int fromIndex, int toIndex) {
       synchronized (mutex) {
         return list(delegate().subList(fromIndex, toIndex), mutex);
       }
@@ -485,7 +495,7 @@ public List<E> subList(int fromIndex, int toIndex) {
 
     @Pure
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object o) {
+    public boolean equals(@Readonly SynchronizedList<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (o == this) {
         return true;
       }
@@ -496,7 +506,7 @@ public boolean equals(@CheckForNull @UnknownSignedness Object o) {
 
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness SynchronizedList<E> this) {
+    public int hashCode(@UnknownSignedness @Readonly SynchronizedList<E> this) {
       synchronized (mutex) {
         return delegate().hashCode();
       }
@@ -505,67 +515,69 @@ public int hashCode(@UnknownSignedness SynchronizedList<E> this) {
     private static final long serialVersionUID = 0;
   }
 
-  private static class SynchronizedRandomAccessList<E extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class SynchronizedRandomAccessList<E extends @Nullable @Readonly Object>
       extends SynchronizedList<E> implements RandomAccess {
-    SynchronizedRandomAccessList(List<E> list, @CheckForNull Object mutex) {
+    SynchronizedRandomAccessList(@ReceiverDependentMutable List<E> list, @CheckForNull @Readonly Object mutex) {
       super(list, mutex);
     }
 
     private static final long serialVersionUID = 0;
   }
 
-  static <E extends @Nullable Object> Multiset<E> multiset(
-      Multiset<E> multiset, @CheckForNull Object mutex) {
+  static <E extends @Nullable @Readonly Object> Multiset<E> multiset(
+      Multiset<E> multiset, @CheckForNull @Readonly Object mutex) {
     if (multiset instanceof SynchronizedMultiset || multiset instanceof ImmutableMultiset) {
       return multiset;
     }
     return new SynchronizedMultiset<E>(multiset, mutex);
   }
 
-  private static class SynchronizedMultiset<E extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class SynchronizedMultiset<E extends @Nullable @Readonly Object>
       extends SynchronizedCollection<E> implements Multiset<E> {
     @CheckForNull transient Set<E> elementSet;
     @CheckForNull transient Set<Multiset.Entry<E>> entrySet;
 
-    SynchronizedMultiset(Multiset<E> delegate, @CheckForNull Object mutex) {
+    SynchronizedMultiset(@ReceiverDependentMutable Multiset<E> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    Multiset<E> delegate() {
+    @PolyMutable Multiset<E> delegate(@PolyMutable SynchronizedMultiset<E> this) {
       return (Multiset<E>) super.delegate();
     }
 
     @Override
-    public @NonNegative int count(@CheckForNull @UnknownSignedness Object o) {
+    public @NonNegative int count(@Readonly SynchronizedMultiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       synchronized (mutex) {
         return delegate().count(o);
       }
     }
 
     @Override
-    public int add(E e, int n) {
+    public int add(@Mutable SynchronizedMultiset<E> this, E e, int n) {
       synchronized (mutex) {
         return delegate().add(e, n);
       }
     }
 
     @Override
-    public int remove(@CheckForNull Object o, int n) {
+    public int remove(@Mutable SynchronizedMultiset<E> this, @CheckForNull @Readonly Object o, int n) {
       synchronized (mutex) {
         return delegate().remove(o, n);
       }
     }
 
     @Override
-    public int setCount(E element, int count) {
+    public int setCount(@Mutable SynchronizedMultiset<E> this, E element, int count) {
       synchronized (mutex) {
         return delegate().setCount(element, count);
       }
     }
 
     @Override
-    public boolean setCount(E element, int oldCount, int newCount) {
+    public boolean setCount(@Mutable SynchronizedMultiset<E> this, E element, int oldCount, int newCount) {
       synchronized (mutex) {
         return delegate().setCount(element, oldCount, newCount);
       }
@@ -573,7 +585,7 @@ public boolean setCount(E element, int oldCount, int newCount) {
 
     @SideEffectFree
     @Override
-    public Set<E> elementSet() {
+    public @PolyMutable Set<E> elementSet(@PolyMutable SynchronizedMultiset<E> this) {
       synchronized (mutex) {
         if (elementSet == null) {
           elementSet = typePreservingSet(delegate().elementSet(), mutex);
@@ -584,7 +596,7 @@ public Set<E> elementSet() {
 
     @SideEffectFree
     @Override
-    public Set<Multiset.Entry<E>> entrySet() {
+    public @PolyMutable Set<Multiset.Entry<E>> entrySet(@PolyMutable SynchronizedMultiset<E> this) {
       synchronized (mutex) {
         if (entrySet == null) {
           entrySet = typePreservingSet(delegate().entrySet(), mutex);
@@ -595,7 +607,7 @@ public Set<Multiset.Entry<E>> entrySet() {
 
     @Pure
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object o) {
+    public boolean equals(@Readonly SynchronizedMultiset<E> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (o == this) {
         return true;
       }
@@ -606,7 +618,7 @@ public boolean equals(@CheckForNull @UnknownSignedness Object o) {
 
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness SynchronizedMultiset<E> this) {
+    public int hashCode(@UnknownSignedness @Readonly SynchronizedMultiset<E> this) {
       synchronized (mutex) {
         return delegate().hashCode();
       }
@@ -615,15 +627,16 @@ public int hashCode(@UnknownSignedness SynchronizedMultiset<E> this) {
     private static final long serialVersionUID = 0;
   }
 
-  static <K extends @Nullable Object, V extends @Nullable Object> Multimap<K, V> multimap(
-      Multimap<K, V> multimap, @CheckForNull Object mutex) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Multimap<K, V> multimap(
+      Multimap<K, V> multimap, @CheckForNull @Readonly Object mutex) {
     if (multimap instanceof SynchronizedMultimap || multimap instanceof BaseImmutableMultimap) {
       return multimap;
     }
     return new SynchronizedMultimap<>(multimap, mutex);
   }
 
-  private static class SynchronizedMultimap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class SynchronizedMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedObject implements Multimap<K, V> {
     @CheckForNull transient Set<K> keySet;
     @CheckForNull transient Collection<V> valuesCollection;
@@ -633,17 +646,17 @@ private static class SynchronizedMultimap<K extends @Nullable Object, V extends
 
     @SuppressWarnings("unchecked")
     @Override
-    Multimap<K, V> delegate() {
+    @PolyMutable Multimap<K, V> delegate(@PolyMutable SynchronizedMultimap<K, V> this) {
       return (Multimap<K, V>) super.delegate();
     }
 
-    SynchronizedMultimap(Multimap<K, V> delegate, @CheckForNull Object mutex) {
+    SynchronizedMultimap(@ReceiverDependentMutable Multimap<K, V> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Pure
     @Override
-    public int size() {
+    public int size(@Readonly SynchronizedMultimap<K, V> this) {
       synchronized (mutex) {
         return delegate().size();
       }
@@ -651,7 +664,7 @@ public int size() {
 
     @Pure
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly SynchronizedMultimap<K, V> this) {
       synchronized (mutex) {
         return delegate().isEmpty();
       }
@@ -659,7 +672,7 @@ public boolean isEmpty() {
 
     @Pure
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@Readonly SynchronizedMultimap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       synchronized (mutex) {
         return delegate().containsKey(key);
       }
@@ -667,7 +680,7 @@ public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
 
     @Pure
     @Override
-    public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+    public boolean containsValue(@Readonly SynchronizedMultimap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
       synchronized (mutex) {
         return delegate().containsValue(value);
       }
@@ -675,63 +688,63 @@ public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
 
     @Pure
     @Override
-    public boolean containsEntry(@CheckForNull Object key, @CheckForNull Object value) {
+    public boolean containsEntry(@Readonly SynchronizedMultimap<K, V> this, @CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
       synchronized (mutex) {
         return delegate().containsEntry(key, value);
       }
     }
 
     @Override
-    public Collection<V> get(K key) {
+    public Collection<V> get(@Readonly SynchronizedMultimap<K, V> this, K key) {
       synchronized (mutex) {
         return typePreservingCollection(delegate().get(key), mutex);
       }
     }
 
     @Override
-    public boolean put(K key, V value) {
+    public boolean put(@Mutable SynchronizedMultimap<K, V> this, K key, V value) {
       synchronized (mutex) {
         return delegate().put(key, value);
       }
     }
 
     @Override
-    public boolean putAll(K key, Iterable<? extends V> values) {
+    public boolean putAll(@Mutable SynchronizedMultimap<K, V> this, K key, Iterable<? extends V> values) {
       synchronized (mutex) {
         return delegate().putAll(key, values);
       }
     }
 
     @Override
-    public boolean putAll(Multimap<? extends K, ? extends V> multimap) {
+    public boolean putAll(@Mutable SynchronizedMultimap<K, V> this, @Readonly Multimap<? extends K, ? extends V> multimap) {
       synchronized (mutex) {
         return delegate().putAll(multimap);
       }
     }
 
     @Override
-    public Collection<V> replaceValues(K key, Iterable<? extends V> values) {
+    public Collection<V> replaceValues(@Mutable SynchronizedMultimap<K, V> this, K key, Iterable<? extends V> values) {
       synchronized (mutex) {
         return delegate().replaceValues(key, values); // copy not synchronized
       }
     }
 
     @Override
-    public boolean remove(@CheckForNull Object key, @CheckForNull Object value) {
+    public boolean remove(@Mutable SynchronizedMultimap<K, V> this, @CheckForNull @Readonly Object key, @CheckForNull @Readonly Object value) {
       synchronized (mutex) {
         return delegate().remove(key, value);
       }
     }
 
     @Override
-    public Collection<V> removeAll(@CheckForNull Object key) {
+    public Collection<V> removeAll(@Mutable SynchronizedMultimap<K, V> this, @CheckForNull @Readonly Object key) {
       synchronized (mutex) {
         return delegate().removeAll(key); // copy not synchronized
       }
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable SynchronizedMultimap<K, V> this) {
       synchronized (mutex) {
         delegate().clear();
       }
@@ -739,7 +752,7 @@ public void clear() {
 
     @SideEffectFree
     @Override
-    public Set<K> keySet() {
+    public @PolyMutable Set<K> keySet(@PolyMutable SynchronizedMultimap<K, V> this) {
       synchronized (mutex) {
         if (keySet == null) {
           keySet = typePreservingSet(delegate().keySet(), mutex);
@@ -750,7 +763,7 @@ public Set<K> keySet() {
 
     @SideEffectFree
     @Override
-    public Collection<V> values() {
+    public @PolyMutable Collection<V> values(@PolyMutable SynchronizedMultimap<K, V> this) {
       synchronized (mutex) {
         if (valuesCollection == null) {
           valuesCollection = collection(delegate().values(), mutex);
@@ -761,7 +774,7 @@ public Collection<V> values() {
 
     @SideEffectFree
     @Override
-    public Collection<Map.Entry<K, V>> entries() {
+    public @PolyMutable Collection<Map.Entry<K, V>> entries(@PolyMutable SynchronizedMultimap<K, V> this) {
       synchronized (mutex) {
         if (entries == null) {
           entries = typePreservingCollection(delegate().entries(), mutex);
@@ -778,7 +791,7 @@ public void forEach(BiConsumer<? super K, ? super V> action) {
     }
 
     @Override
-    public Map<K, Collection<V>> asMap() {
+    public @PolyMutable Map<K, Collection<V>> asMap(@PolyMutable SynchronizedMultimap<K, V> this) {
       synchronized (mutex) {
         if (asMap == null) {
           asMap = new SynchronizedAsMap<>(delegate().asMap(), mutex);
@@ -788,7 +801,7 @@ public Map<K, Collection<V>> asMap() {
     }
 
     @Override
-    public Multiset<K> keys() {
+    public @PolyMutable Multiset<K> keys(@PolyMutable SynchronizedMultimap<K, V> this) {
       synchronized (mutex) {
         if (keys == null) {
           keys = multiset(delegate().keys(), mutex);
@@ -799,7 +812,7 @@ public Multiset<K> keys() {
 
     @Pure
     @Override
-    public boolean equals(@CheckForNull Object o) {
+    public boolean equals(@Readonly SynchronizedMultimap<K, V> this, @CheckForNull @Readonly Object o) {
       if (o == this) {
         return true;
       }
@@ -810,7 +823,7 @@ public boolean equals(@CheckForNull Object o) {
 
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness SynchronizedMultimap<K, V> this) {
+    public int hashCode(@UnknownSignedness @Readonly SynchronizedMultimap<K, V> this) {
       synchronized (mutex) {
         return delegate().hashCode();
       }
@@ -819,42 +832,43 @@ public int hashCode(@UnknownSignedness SynchronizedMultimap<K, V> this) {
     private static final long serialVersionUID = 0;
   }
 
-  static <K extends @Nullable Object, V extends @Nullable Object> ListMultimap<K, V> listMultimap(
-      ListMultimap<K, V> multimap, @CheckForNull Object mutex) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> ListMultimap<K, V> listMultimap(
+      ListMultimap<K, V> multimap, @CheckForNull @Readonly Object mutex) {
     if (multimap instanceof SynchronizedListMultimap || multimap instanceof BaseImmutableMultimap) {
       return multimap;
     }
     return new SynchronizedListMultimap<>(multimap, mutex);
   }
 
+  @ReceiverDependentMutable
   private static class SynchronizedListMultimap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedMultimap<K, V> implements ListMultimap<K, V> {
-    SynchronizedListMultimap(ListMultimap<K, V> delegate, @CheckForNull Object mutex) {
+    SynchronizedListMultimap(@ReceiverDependentMutable ListMultimap<K, V> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    ListMultimap<K, V> delegate() {
+    @PolyMutable ListMultimap<K, V> delegate(@PolyMutable SynchronizedListMultimap<K, V> this) {
       return (ListMultimap<K, V>) super.delegate();
     }
 
     @Override
-    public List<V> get(K key) {
+    public List<V> get(@Readonly SynchronizedListMultimap<K, V> this, K key) {
       synchronized (mutex) {
         return list(delegate().get(key), mutex);
       }
     }
 
     @Override
-    public List<V> removeAll(@CheckForNull Object key) {
+    public List<V> removeAll(@Mutable SynchronizedListMultimap<K, V> this, @CheckForNull @Readonly Object key) {
       synchronized (mutex) {
         return delegate().removeAll(key); // copy not synchronized
       }
     }
 
     @Override
-    public List<V> replaceValues(K key, Iterable<? extends V> values) {
+    public List<V> replaceValues(@Mutable SynchronizedListMultimap<K, V> this,  K key, Iterable<? extends V> values) {
       synchronized (mutex) {
         return delegate().replaceValues(key, values); // copy not synchronized
       }
@@ -863,44 +877,45 @@ public List<V> replaceValues(K key, Iterable<? extends V> values) {
     private static final long serialVersionUID = 0;
   }
 
-  static <K extends @Nullable Object, V extends @Nullable Object> SetMultimap<K, V> setMultimap(
-      SetMultimap<K, V> multimap, @CheckForNull Object mutex) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> SetMultimap<K, V> setMultimap(
+      SetMultimap<K, V> multimap, @CheckForNull @Readonly Object mutex) {
     if (multimap instanceof SynchronizedSetMultimap || multimap instanceof BaseImmutableMultimap) {
       return multimap;
     }
     return new SynchronizedSetMultimap<>(multimap, mutex);
   }
 
+  @ReceiverDependentMutable
   private static class SynchronizedSetMultimap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedMultimap<K, V> implements SetMultimap<K, V> {
     @CheckForNull transient Set<Map.Entry<K, V>> entrySet;
 
-    SynchronizedSetMultimap(SetMultimap<K, V> delegate, @CheckForNull Object mutex) {
+    SynchronizedSetMultimap(@ReceiverDependentMutable SetMultimap<K, V> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    SetMultimap<K, V> delegate() {
+    @PolyMutable SetMultimap<K, V> delegate(@PolyMutable SynchronizedSetMultimap<K, V> this) {
       return (SetMultimap<K, V>) super.delegate();
     }
 
     @Override
-    public Set<V> get(K key) {
+    public Set<V> get(@Readonly SynchronizedSetMultimap<K, V> this, K key) {
       synchronized (mutex) {
         return set(delegate().get(key), mutex);
       }
     }
 
     @Override
-    public Set<V> removeAll(@CheckForNull Object key) {
+    public Set<V> removeAll(@Mutable SynchronizedSetMultimap<K, V> this, @CheckForNull @Readonly Object key) {
       synchronized (mutex) {
         return delegate().removeAll(key); // copy not synchronized
       }
     }
 
     @Override
-    public Set<V> replaceValues(K key, Iterable<? extends V> values) {
+    public Set<V> replaceValues(@Mutable SynchronizedSetMultimap<K, V> this, K key, Iterable<? extends V> values) {
       synchronized (mutex) {
         return delegate().replaceValues(key, values); // copy not synchronized
       }
@@ -908,7 +923,7 @@ public Set<V> replaceValues(K key, Iterable<? extends V> values) {
 
     @SideEffectFree
     @Override
-    public Set<Map.Entry<K, V>> entries() {
+    public @PolyMutable Set<Map.Entry<K, V>> entries(@PolyMutable SynchronizedSetMultimap<K, V> this) {
       synchronized (mutex) {
         if (entrySet == null) {
           entrySet = set(delegate().entries(), mutex);
@@ -920,43 +935,44 @@ public Set<Map.Entry<K, V>> entries() {
     private static final long serialVersionUID = 0;
   }
 
-  static <K extends @Nullable Object, V extends @Nullable Object>
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       SortedSetMultimap<K, V> sortedSetMultimap(
-          SortedSetMultimap<K, V> multimap, @CheckForNull Object mutex) {
+          SortedSetMultimap<K, V> multimap, @CheckForNull @Readonly Object mutex) {
     if (multimap instanceof SynchronizedSortedSetMultimap) {
       return multimap;
     }
     return new SynchronizedSortedSetMultimap<>(multimap, mutex);
   }
 
+  @ReceiverDependentMutable
   private static class SynchronizedSortedSetMultimap<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedSetMultimap<K, V> implements SortedSetMultimap<K, V> {
-    SynchronizedSortedSetMultimap(SortedSetMultimap<K, V> delegate, @CheckForNull Object mutex) {
+    SynchronizedSortedSetMultimap(@ReceiverDependentMutable SortedSetMultimap<K, V> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    SortedSetMultimap<K, V> delegate() {
+    @PolyMutable SortedSetMultimap<K, V> delegate(@PolyMutable SynchronizedSortedSetMultimap<K, V> this) {
       return (SortedSetMultimap<K, V>) super.delegate();
     }
 
     @Override
-    public SortedSet<V> get(K key) {
+    public SortedSet<V> get(@Readonly SynchronizedSortedSetMultimap<K, V> this, K key) {
       synchronized (mutex) {
         return sortedSet(delegate().get(key), mutex);
       }
     }
 
     @Override
-    public SortedSet<V> removeAll(@CheckForNull Object key) {
+    public SortedSet<V> removeAll(@Mutable SynchronizedSortedSetMultimap<K, V> this, @CheckForNull @Readonly Object key) {
       synchronized (mutex) {
         return delegate().removeAll(key); // copy not synchronized
       }
     }
 
     @Override
-    public SortedSet<V> replaceValues(K key, Iterable<? extends V> values) {
+    public SortedSet<V> replaceValues(@Mutable SynchronizedSortedSetMultimap<K, V> this, K key, Iterable<? extends V> values) {
       synchronized (mutex) {
         return delegate().replaceValues(key, values); // copy not synchronized
       }
@@ -964,7 +980,7 @@ public SortedSet<V> replaceValues(K key, Iterable<? extends V> values) {
 
     @Override
     @CheckForNull
-    public Comparator<? super V> valueComparator() {
+    public Comparator<? super V> valueComparator(@Readonly SynchronizedSortedSetMultimap<K, V> this) {
       synchronized (mutex) {
         return delegate().valueComparator();
       }
@@ -973,8 +989,8 @@ public Comparator<? super V> valueComparator() {
     private static final long serialVersionUID = 0;
   }
 
-  private static <E extends @Nullable Object> Collection<E> typePreservingCollection(
-      Collection<E> collection, @CheckForNull Object mutex) {
+  private static <E extends @Nullable @Readonly Object> Collection<E> typePreservingCollection(
+      Collection<E> collection, @CheckForNull @Readonly Object mutex) {
     if (collection instanceof SortedSet) {
       return sortedSet((SortedSet<E>) collection, mutex);
     }
@@ -987,8 +1003,8 @@ public Comparator<? super V> valueComparator() {
     return collection(collection, mutex);
   }
 
-  private static <E extends @Nullable Object> Set<E> typePreservingSet(
-      Set<E> set, @CheckForNull Object mutex) {
+  private static <E extends @Nullable @Readonly Object> Set<E> typePreservingSet(
+      Set<E> set, @CheckForNull @Readonly Object mutex) {
     if (set instanceof SortedSet) {
       return sortedSet((SortedSet<E>) set, mutex);
     } else {
@@ -996,16 +1012,17 @@ public Comparator<? super V> valueComparator() {
     }
   }
 
+  @ReceiverDependentMutable
   private static class SynchronizedAsMapEntries<
-          K extends @Nullable Object, V extends @Nullable Object>
+          K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedSet<Map.Entry<K, Collection<V>>> {
     SynchronizedAsMapEntries(
-        Set<Map.Entry<K, Collection<V>>> delegate, @CheckForNull Object mutex) {
+            @ReceiverDependentMutable Set<Map.Entry<K, Collection<V>>> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    public Iterator<Map.Entry<K, Collection<V>>> iterator() {
+    public Iterator<Map.Entry<K, Collection<V>>> iterator(@Readonly SynchronizedAsMapEntries<K, V> this) {
       // Must be manually synchronized.
       return new TransformedIterator<Map.Entry<K, Collection<V>>, Map.Entry<K, Collection<V>>>(
           super.iterator()) {
@@ -1044,7 +1061,7 @@ public Collection<V> getValue() {
 
     @Override
     //@SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
-    public <T extends @Nullable @UnknownSignedness Object> T[] toArray(@PolyNull T[] array) {
+    public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(@PolyNull T[] array) {
       synchronized (mutex) {
         return ObjectArrays.toArrayImpl(delegate(), array);
       }
@@ -1052,7 +1069,7 @@ public Collection<V> getValue() {
 
     @Pure
     @Override
-    public boolean contains(@CheckForNull @UnknownSignedness Object o) {
+    public boolean contains(@Readonly SynchronizedAsMapEntries<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       synchronized (mutex) {
         return Maps.containsEntryImpl(delegate(), o);
       }
@@ -1060,7 +1077,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object o) {
 
     @Pure
     @Override
-    public boolean containsAll(Collection<?> c) {
+    public boolean containsAll(@Readonly SynchronizedAsMapEntries<K, V> this, @Readonly Collection<?> c) {
       synchronized (mutex) {
         return Collections2.containsAllImpl(delegate(), c);
       }
@@ -1068,7 +1085,7 @@ public boolean containsAll(Collection<?> c) {
 
     @Pure
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object o) {
+    public boolean equals(@Readonly SynchronizedAsMapEntries<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       if (o == this) {
         return true;
       }
@@ -1078,21 +1095,21 @@ public boolean equals(@CheckForNull @UnknownSignedness Object o) {
     }
 
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object o) {
+    public boolean remove(@Mutable SynchronizedAsMapEntries<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       synchronized (mutex) {
         return Maps.removeEntryImpl(delegate(), o);
       }
     }
 
     @Override
-    public boolean removeAll(Collection<?> c) {
+    public boolean removeAll(@Mutable SynchronizedAsMapEntries<K, V> this, @Readonly Collection<?> c) {
       synchronized (mutex) {
         return Iterators.removeAll(delegate().iterator(), c);
       }
     }
 
     @Override
-    public boolean retainAll(Collection<?> c) {
+    public boolean retainAll(@Mutable SynchronizedAsMapEntries<K, V> this, @Readonly Collection<?> c) {
       synchronized (mutex) {
         return Iterators.retainAll(delegate().iterator(), c);
       }
@@ -1102,29 +1119,30 @@ public boolean retainAll(Collection<?> c) {
   }
 
   @VisibleForTesting
-  static <K extends @Nullable Object, V extends @Nullable Object> Map<K, V> map(
-      Map<K, V> map, @CheckForNull Object mutex) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> Map<K, V> map(
+      Map<K, V> map, @CheckForNull @Readonly Object mutex) {
     return new SynchronizedMap<>(map, mutex);
   }
 
-  private static class SynchronizedMap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class SynchronizedMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedObject implements Map<K, V> {
     @CheckForNull transient Set<K> keySet;
     @CheckForNull transient Collection<V> values;
     @CheckForNull transient Set<Map.Entry<K, V>> entrySet;
 
-    SynchronizedMap(Map<K, V> delegate, @CheckForNull Object mutex) {
+    SynchronizedMap(@ReceiverDependentMutable Map<K, V> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @SuppressWarnings("unchecked")
     @Override
-    Map<K, V> delegate() {
+    @PolyMutable Map<K, V> delegate(@PolyMutable SynchronizedMap<K, V> this) {
       return (Map<K, V>) super.delegate();
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable SynchronizedMap<K, V> this) {
       synchronized (mutex) {
         delegate().clear();
       }
@@ -1132,7 +1150,7 @@ public void clear() {
 
     @Pure
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@Readonly SynchronizedMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       synchronized (mutex) {
         return delegate().containsKey(key);
       }
@@ -1140,7 +1158,7 @@ public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
 
     @Pure
     @Override
-    public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+    public boolean containsValue(@Readonly SynchronizedMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
       synchronized (mutex) {
         return delegate().containsValue(value);
       }
@@ -1148,7 +1166,7 @@ public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
 
     @SideEffectFree
     @Override
-    public Set<Map.Entry<@KeyFor({"this"}) K, V>> entrySet() {
+    public @PolyMutable Set<Map.Entry<@KeyFor({"this"}) K, V>> entrySet(@PolyMutable SynchronizedMap<K, V> this) {
       synchronized (mutex) {
         if (entrySet == null) {
           entrySet = set(delegate().entrySet(), mutex);
@@ -1166,7 +1184,7 @@ public void forEach(BiConsumer<? super K, ? super V> action) {
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull @UnknownSignedness Object key) {
+    public V get(@Readonly SynchronizedMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       synchronized (mutex) {
         return delegate().get(key);
       }
@@ -1175,14 +1193,14 @@ public V get(@CheckForNull @UnknownSignedness Object key) {
     @Pure
     @Override
     @CheckForNull
-    public V getOrDefault(@CheckForNull @UnknownSignedness Object key, @CheckForNull V defaultValue) {
+    public V getOrDefault(@Readonly SynchronizedMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key, @CheckForNull V defaultValue) {
       synchronized (mutex) {
         return delegate().getOrDefault(key, defaultValue);
       }
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly SynchronizedMap<K, V> this) {
       synchronized (mutex) {
         return delegate().isEmpty();
       }
@@ -1190,7 +1208,7 @@ public boolean isEmpty() {
 
     @SideEffectFree
     @Override
-    public Set<@KeyFor({"this"}) K> keySet() {
+    public @PolyMutable Set<@KeyFor({"this"}) K> keySet(@PolyMutable SynchronizedMap<K, V> this) {
       synchronized (mutex) {
         if (keySet == null) {
           keySet = set(delegate().keySet(), mutex);
@@ -1201,7 +1219,7 @@ public boolean isEmpty() {
 
     @Override
     @CheckForNull
-    public V put(K key, V value) {
+    public V put(@Mutable SynchronizedMap<K, V> this, K key, V value) {
       synchronized (mutex) {
         return delegate().put(key, value);
       }
@@ -1209,14 +1227,14 @@ public V put(K key, V value) {
 
     @Override
     @CheckForNull
-    public V putIfAbsent(K key, V value) {
+    public V putIfAbsent(@Mutable SynchronizedMap<K, V> this, K key, V value) {
       synchronized (mutex) {
         return delegate().putIfAbsent(key, value);
       }
     }
 
     @Override
-    public boolean replace(K key, V oldValue, V newValue) {
+    public boolean replace(@Mutable SynchronizedMap<K, V> this, K key, V oldValue, V newValue) {
       synchronized (mutex) {
         return delegate().replace(key, oldValue, newValue);
       }
@@ -1224,21 +1242,21 @@ public boolean replace(K key, V oldValue, V newValue) {
 
     @Override
     @CheckForNull
-    public V replace(K key, V value) {
+    public V replace(@Mutable SynchronizedMap<K, V> this, K key, V value) {
       synchronized (mutex) {
         return delegate().replace(key, value);
       }
     }
 
     @Override
-    public @PolyNull V computeIfAbsent(K key, Function<? super K, ? extends @PolyNull V> mappingFunction) {
+    public @PolyNull V computeIfAbsent(@Mutable SynchronizedMap<K, V> this, K key, Function<? super K, ? extends @PolyNull V> mappingFunction) {
       synchronized (mutex) {
         return delegate().computeIfAbsent(key, mappingFunction);
       }
     }
 
     @Override
-    public @PolyNull V computeIfPresent(
+    public @PolyNull V computeIfPresent(@Mutable SynchronizedMap<K, V> this,
         K key, BiFunction<? super K, ? super V, ? extends @PolyNull V> remappingFunction) {
       synchronized (mutex) {
         return delegate().computeIfPresent(key, remappingFunction);
@@ -1246,7 +1264,7 @@ public V replace(K key, V value) {
     }
 
     @Override
-    public @PolyNull V compute(
+    public @PolyNull V compute(@Mutable SynchronizedMap<K, V> this,
         K key, BiFunction<? super K, ? super @Nullable V, ? extends @PolyNull V> remappingFunction) {
       synchronized (mutex) {
         return delegate().compute(key, remappingFunction);
@@ -1254,7 +1272,7 @@ public V replace(K key, V value) {
     }
 
     @Override
-    public @PolyNull V merge(
+    public @PolyNull V merge(@Mutable SynchronizedMap<K, V> this,
         K key, V value, BiFunction<? super V, ? super V, ? extends @PolyNull V> remappingFunction) {
       synchronized (mutex) {
         return delegate().merge(key, value, remappingFunction);
@@ -1262,14 +1280,14 @@ public V replace(K key, V value) {
     }
 
     @Override
-    public void putAll(Map<? extends K, ? extends V> map) {
+    public void putAll(@Mutable SynchronizedMap<K, V> this, @Readonly Map<? extends K, ? extends V> map) {
       synchronized (mutex) {
         delegate().putAll(map);
       }
     }
 
     @Override
-    public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
+    public void replaceAll(@Mutable SynchronizedMap<K, V> this, BiFunction<? super K, ? super V, ? extends V> function) {
       synchronized (mutex) {
         delegate().replaceAll(function);
       }
@@ -1277,7 +1295,7 @@ public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
 
     @Override
     @CheckForNull
-    public V remove(@CheckForNull @UnknownSignedness Object key) {
+    public V remove(@Mutable SynchronizedMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
       synchronized (mutex) {
         return delegate().remove(key);
       }
@@ -1285,14 +1303,14 @@ public V remove(@CheckForNull @UnknownSignedness Object key) {
 
     @Pure
     @Override
-    public boolean remove(@CheckForNull @UnknownSignedness Object key, @CheckForNull @UnknownSignedness Object value) {
+    public boolean remove(@Mutable SynchronizedMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key, @CheckForNull @UnknownSignedness @Readonly Object value) {
       synchronized (mutex) {
         return delegate().remove(key, value);
       }
     }
 
     @Override
-    public @NonNegative int size() {
+    public @NonNegative int size(@Readonly SynchronizedMap<K, V> this) {
       synchronized (mutex) {
         return delegate().size();
       }
@@ -1300,7 +1318,7 @@ public boolean remove(@CheckForNull @UnknownSignedness Object key, @CheckForNull
 
     @SideEffectFree
     @Override
-    public Collection<V> values() {
+    public @PolyMutable Collection<V> values(@PolyMutable SynchronizedMap<K, V> this) {
       synchronized (mutex) {
         if (values == null) {
           values = collection(delegate().values(), mutex);
@@ -1311,7 +1329,7 @@ public Collection<V> values() {
 
     @Pure
     @Override
-    public boolean equals(@CheckForNull Object o) {
+    public boolean equals(@Readonly SynchronizedMap<K, V> this, @CheckForNull @Readonly Object o) {
       if (o == this) {
         return true;
       }
@@ -1322,7 +1340,7 @@ public boolean equals(@CheckForNull Object o) {
 
     @Pure
     @Override
-    public int hashCode(@UnknownSignedness SynchronizedMap<K, V> this) {
+    public int hashCode(@UnknownSignedness @Readonly SynchronizedMap<K, V> this) {
       synchronized (mutex) {
         return delegate().hashCode();
       }
@@ -1331,20 +1349,21 @@ public int hashCode(@UnknownSignedness SynchronizedMap<K, V> this) {
     private static final long serialVersionUID = 0;
   }
 
-  static <K extends @Nullable Object, V extends @Nullable Object> SortedMap<K, V> sortedMap(
-      SortedMap<K, V> sortedMap, @CheckForNull Object mutex) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable  @Readonly Object> SortedMap<K, V> sortedMap(
+      SortedMap<K, V> sortedMap, @CheckForNull @Readonly Object mutex) {
     return new SynchronizedSortedMap<>(sortedMap, mutex);
   }
 
-  static class SynchronizedSortedMap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class SynchronizedSortedMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedMap<K, V> implements SortedMap<K, V> {
 
-    SynchronizedSortedMap(SortedMap<K, V> delegate, @CheckForNull Object mutex) {
+    SynchronizedSortedMap(@ReceiverDependentMutable SortedMap<K, V> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    SortedMap<K, V> delegate() {
+    @PolyMutable SortedMap<K, V> delegate(@PolyMutable SynchronizedSortedMap<K, V> this) {
       return (SortedMap<K, V>) super.delegate();
     }
 
@@ -1357,35 +1376,35 @@ public Comparator<? super K> comparator() {
     }
 
     @Override
-    public @KeyFor("this") K firstKey() {
+    public @KeyFor("this") K firstKey(@Readonly SynchronizedSortedMap<K, V> this) {
       synchronized (mutex) {
         return delegate().firstKey();
       }
     }
 
     @Override
-    public SortedMap<K, V> headMap(K toKey) {
+    public SortedMap<K, V> headMap(@Readonly SynchronizedSortedMap<K, V> this, K toKey) {
       synchronized (mutex) {
         return sortedMap(delegate().headMap(toKey), mutex);
       }
     }
 
     @Override
-    public @KeyFor("this") K lastKey() {
+    public @KeyFor("this") K lastKey(@Readonly SynchronizedSortedMap<K, V> this) {
       synchronized (mutex) {
         return delegate().lastKey();
       }
     }
 
     @Override
-    public SortedMap<K, V> subMap(K fromKey, K toKey) {
+    public @PolyMutable SortedMap<K, V> subMap(@PolyMutable SynchronizedSortedMap<K, V> this, K fromKey, K toKey) {
       synchronized (mutex) {
         return sortedMap(delegate().subMap(fromKey, toKey), mutex);
       }
     }
 
     @Override
-    public SortedMap<K, V> tailMap(K fromKey) {
+    public @PolyMutable SortedMap<K, V> tailMap(@PolyMutable SynchronizedSortedMap<K, V> this, K fromKey) {
       synchronized (mutex) {
         return sortedMap(delegate().tailMap(fromKey), mutex);
       }
@@ -1394,8 +1413,8 @@ public SortedMap<K, V> tailMap(K fromKey) {
     private static final long serialVersionUID = 0;
   }
 
-  static <K extends @Nullable Object, V extends @Nullable Object> BiMap<K, V> biMap(
-      BiMap<K, V> bimap, @CheckForNull Object mutex) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object> BiMap<K, V> biMap(
+      BiMap<K, V> bimap, @CheckForNull @Readonly Object mutex) {
     if (bimap instanceof SynchronizedBiMap || bimap instanceof ImmutableBiMap) {
       return bimap;
     }
@@ -1403,25 +1422,26 @@ public SortedMap<K, V> tailMap(K fromKey) {
   }
 
   @VisibleForTesting
-  static class SynchronizedBiMap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class SynchronizedBiMap<K extends @Nullable @Immutable Object, V extends @Nullable @Immutable Object>
       extends SynchronizedMap<K, V> implements BiMap<K, V>, Serializable {
     @CheckForNull private transient Set<V> valueSet;
     @RetainedWith @CheckForNull private transient BiMap<V, K> inverse;
 
     private SynchronizedBiMap(
-        BiMap<K, V> delegate, @CheckForNull Object mutex, @CheckForNull BiMap<V, K> inverse) {
+            @ReceiverDependentMutable BiMap<K, V> delegate, @CheckForNull @Readonly Object mutex, @CheckForNull @ReceiverDependentMutable BiMap<V, K> inverse) {
       super(delegate, mutex);
       this.inverse = inverse;
     }
 
     @Override
-    BiMap<K, V> delegate() {
+    @PolyMutable BiMap<K, V> delegate(@PolyMutable SynchronizedBiMap<K, V> this) {
       return (BiMap<K, V>) super.delegate();
     }
 
     @SideEffectFree
     @Override
-    public Set<V> values() {
+    public @PolyMutable Set<V> values(@PolyMutable SynchronizedBiMap<K, V> this) {
       synchronized (mutex) {
         if (valueSet == null) {
           valueSet = set(delegate().values(), mutex);
@@ -1432,14 +1452,14 @@ public Set<V> values() {
 
     @Override
     @CheckForNull
-    public V forcePut(K key, V value) {
+    public V forcePut(@Mutable SynchronizedBiMap<K, V> this, K key, V value) {
       synchronized (mutex) {
         return delegate().forcePut(key, value);
       }
     }
 
     @Override
-    public BiMap<V, K> inverse() {
+    public @PolyMutable BiMap<V, K> inverse(@PolyMutable SynchronizedBiMap<K, V> this) {
       synchronized (mutex) {
         if (inverse == null) {
           inverse = new SynchronizedBiMap<>(delegate().inverse(), mutex, this);
@@ -1451,18 +1471,19 @@ public BiMap<V, K> inverse() {
     private static final long serialVersionUID = 0;
   }
 
-  private static class SynchronizedAsMap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class SynchronizedAsMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedMap<K, Collection<V>> {
     @CheckForNull transient Set<Map.Entry<K, Collection<V>>> asMapEntrySet;
     @CheckForNull transient Collection<Collection<V>> asMapValues;
 
-    SynchronizedAsMap(Map<K, Collection<V>> delegate, @CheckForNull Object mutex) {
+    SynchronizedAsMap(@ReceiverDependentMutable Map<K, Collection<V>> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
     @CheckForNull
-    public Collection<V> get(@CheckForNull @UnknownSignedness Object key) {
+    public Collection<V> get(@Readonly SynchronizedAsMap<K, V> this,  @CheckForNull @UnknownSignedness @Readonly Object key) {
       synchronized (mutex) {
         Collection<V> collection = super.get(key);
         return (collection == null) ? null : typePreservingCollection(collection, mutex);
@@ -1471,7 +1492,7 @@ public Collection<V> get(@CheckForNull @UnknownSignedness Object key) {
 
     @SideEffectFree
     @Override
-    public Set<Map.Entry<@KeyFor({"this"}) K, Collection<V>>> entrySet() {
+    public @PolyMutable Set<Map.Entry<@KeyFor({"this"}) K, Collection<V>>> entrySet(@PolyMutable SynchronizedAsMap<K, V> this) {
       synchronized (mutex) {
         if (asMapEntrySet == null) {
           asMapEntrySet = new SynchronizedAsMapEntries<>(delegate().entrySet(), mutex);
@@ -1482,7 +1503,7 @@ public Collection<V> get(@CheckForNull @UnknownSignedness Object key) {
 
     @SideEffectFree
     @Override
-    public Collection<Collection<V>> values() {
+    public @PolyMutable Collection<Collection<V>> values(@PolyMutable SynchronizedAsMap<K, V> this) {
       synchronized (mutex) {
         if (asMapValues == null) {
           asMapValues = new SynchronizedAsMapValues<V>(delegate().values(), mutex);
@@ -1493,7 +1514,7 @@ public Collection<Collection<V>> values() {
 
     @Pure
     @Override
-    public boolean containsValue(@CheckForNull @UnknownSignedness Object o) {
+    public boolean containsValue(@Readonly SynchronizedAsMap<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       // values() and its contains() method are both synchronized.
       return values().contains(o);
     }
@@ -1501,14 +1522,15 @@ public boolean containsValue(@CheckForNull @UnknownSignedness Object o) {
     private static final long serialVersionUID = 0;
   }
 
-  private static class SynchronizedAsMapValues<V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class SynchronizedAsMapValues<V extends @Nullable @Readonly Object>
       extends SynchronizedCollection<Collection<V>> {
-    SynchronizedAsMapValues(Collection<Collection<V>> delegate, @CheckForNull Object mutex) {
+    SynchronizedAsMapValues(@ReceiverDependentMutable Collection<Collection<V>> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    public Iterator<Collection<V>> iterator() {
+    public Iterator<Collection<V>> iterator(@Readonly SynchronizedAsMapValues<V> this) {
       // Must be manually synchronized.
       return new TransformedIterator<Collection<V>, Collection<V>>(super.iterator()) {
         @Override
@@ -1531,55 +1553,56 @@ Collection<V> transform(Collection<V> from) {
 
   @Pure
   @Override
-  public boolean contains(@Nullable @UnknownSignedness Object arg0) { return super.contains(arg0); }
+  public boolean contains(@Readonly SynchronizedAsMapValues<V> this, @Nullable @UnknownSignedness @Readonly Object arg0) { return super.contains(arg0); }
 
   @SuppressWarnings("nullness")
   @Pure
   @Override
-  public boolean containsAll(Collection<?> arg0) { return super.containsAll(arg0); }
+  public boolean containsAll(@Readonly SynchronizedAsMapValues<V> this, @Readonly Collection<?> arg0) { return super.containsAll(arg0); }
 
   @Override
-  public boolean remove(@Nullable @UnknownSignedness Object arg0) { return super.remove(arg0); }
+  public boolean remove(@Mutable SynchronizedAsMapValues<V> this, @Nullable @UnknownSignedness @Readonly Object arg0) { return super.remove(arg0); }
 
   @SuppressWarnings("nullness")
   @Override
-  public boolean removeAll(Collection<?> arg0) { return super.removeAll(arg0); }
+  public boolean removeAll(@Mutable SynchronizedAsMapValues<V> this, @Readonly Collection<?> arg0) { return super.removeAll(arg0); }
 
   @SuppressWarnings("nullness")
   @Override
-  public boolean retainAll(Collection<?> arg0) { return super.retainAll(arg0); }
+  public boolean retainAll(@Mutable SynchronizedAsMapValues<V> this, @Readonly Collection<?> arg0) { return super.retainAll(arg0); }
   }
 
   @GwtIncompatible // NavigableSet
   @VisibleForTesting
-  static class SynchronizedNavigableSet<E extends @Nullable Object> extends SynchronizedSortedSet<E>
+  @ReceiverDependentMutable
+  static class SynchronizedNavigableSet<E extends @Nullable @Readonly Object> extends SynchronizedSortedSet<E>
       implements NavigableSet<E> {
-    SynchronizedNavigableSet(NavigableSet<E> delegate, @CheckForNull Object mutex) {
+    SynchronizedNavigableSet(@ReceiverDependentMutable NavigableSet<E> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @Override
-    NavigableSet<E> delegate() {
+    @PolyMutable NavigableSet<E> delegate(@PolyMutable SynchronizedNavigableSet<E> this) {
       return (NavigableSet<E>) super.delegate();
     }
 
     @Override
     @CheckForNull
-    public E ceiling(E e) {
+    public E ceiling(@Readonly SynchronizedNavigableSet<E> this, E e) {
       synchronized (mutex) {
         return delegate().ceiling(e);
       }
     }
 
     @Override
-    public Iterator<E> descendingIterator() {
+    public Iterator<E> descendingIterator(@Readonly SynchronizedNavigableSet<E> this) {
       return delegate().descendingIterator(); // manually synchronized
     }
 
     @CheckForNull transient NavigableSet<E> descendingSet;
 
     @Override
-    public NavigableSet<E> descendingSet() {
+    public @PolyMutable NavigableSet<E> descendingSet(@PolyMutable SynchronizedNavigableSet<E> this) {
       synchronized (mutex) {
         if (descendingSet == null) {
           NavigableSet<E> dS = Synchronized.navigableSet(delegate().descendingSet(), mutex);
@@ -1672,34 +1695,35 @@ public SortedSet<E> tailSet(E fromElement) {
   }
 
   @GwtIncompatible // NavigableSet
-  static <E extends @Nullable Object> NavigableSet<E> navigableSet(
-      NavigableSet<E> navigableSet, @CheckForNull Object mutex) {
+  static <E extends @Nullable @Readonly Object> NavigableSet<E> navigableSet(
+      NavigableSet<E> navigableSet, @CheckForNull @Readonly Object mutex) {
     return new SynchronizedNavigableSet<E>(navigableSet, mutex);
   }
 
   @GwtIncompatible // NavigableSet
-  static <E extends @Nullable Object> NavigableSet<E> navigableSet(NavigableSet<E> navigableSet) {
+  static <E extends @Nullable @Readonly Object> NavigableSet<E> navigableSet(NavigableSet<E> navigableSet) {
     return navigableSet(navigableSet, null);
   }
 
   @GwtIncompatible // NavigableMap
-  static <K extends @Nullable Object, V extends @Nullable Object> NavigableMap<K, V> navigableMap(
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> NavigableMap<K, V> navigableMap(
       NavigableMap<K, V> navigableMap) {
     return navigableMap(navigableMap, null);
   }
 
   @GwtIncompatible // NavigableMap
-  static <K extends @Nullable Object, V extends @Nullable Object> NavigableMap<K, V> navigableMap(
-      NavigableMap<K, V> navigableMap, @CheckForNull Object mutex) {
+  static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> NavigableMap<K, V> navigableMap(
+      NavigableMap<K, V> navigableMap, @CheckForNull @Readonly Object mutex) {
     return new SynchronizedNavigableMap<>(navigableMap, mutex);
   }
 
   @GwtIncompatible // NavigableMap
   @VisibleForTesting
-  static class SynchronizedNavigableMap<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  static class SynchronizedNavigableMap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedSortedMap<K, V> implements NavigableMap<K, V> {
 
-    SynchronizedNavigableMap(NavigableMap<K, V> delegate, @CheckForNull Object mutex) {
+    SynchronizedNavigableMap(@ReceiverDependentMutable NavigableMap<K, V> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
@@ -1887,9 +1911,9 @@ public SortedMap<K, V> tailMap(K fromKey) {
 
   @GwtIncompatible // works but is needed only for NavigableMap
   @CheckForNull
-  private static <K extends @Nullable Object, V extends @Nullable Object>
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Map.Entry<K, V> nullableSynchronizedEntry(
-          @CheckForNull Map.Entry<K, V> entry, @CheckForNull Object mutex) {
+          @CheckForNull Map.Entry<K, V> entry, @CheckForNull @Readonly Object mutex) {
     if (entry == null) {
       return null;
     }
@@ -1897,10 +1921,11 @@ Map.Entry<K, V> nullableSynchronizedEntry(
   }
 
   @GwtIncompatible // works but is needed only for NavigableMap
-  private static class SynchronizedEntry<K extends @Nullable Object, V extends @Nullable Object>
+  @ReceiverDependentMutable
+  private static class SynchronizedEntry<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedObject implements Map.Entry<K, V> {
 
-    SynchronizedEntry(Map.Entry<K, V> delegate, @CheckForNull Object mutex) {
+    SynchronizedEntry(Map.@ReceiverDependentMutable Entry<K, V> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
@@ -1948,14 +1973,15 @@ public V setValue(V value) {
     private static final long serialVersionUID = 0;
   }
 
-  static <E extends @Nullable Object> Queue<E> queue(Queue<E> queue, @CheckForNull Object mutex) {
+  static <E extends @Nullable Object> Queue<E> queue(Queue<E> queue, @CheckForNull @Readonly Object mutex) {
     return (queue instanceof SynchronizedQueue) ? queue : new SynchronizedQueue<E>(queue, mutex);
   }
 
+  @ReceiverDependentMutable
   private static class SynchronizedQueue<E extends @Nullable Object>
       extends SynchronizedCollection<E> implements Queue<E> {
 
-    SynchronizedQueue(Queue<E> delegate, @CheckForNull Object mutex) {
+    SynchronizedQueue(@ReceiverDependentMutable Queue<E> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
@@ -2004,14 +2030,15 @@ public E remove() {
     private static final long serialVersionUID = 0;
   }
 
-  static <E extends @Nullable Object> Deque<E> deque(Deque<E> deque, @CheckForNull Object mutex) {
+  static <E extends @Nullable @Readonly Object> Deque<E> deque(Deque<E> deque, @CheckForNull @Readonly Object mutex) {
     return new SynchronizedDeque<E>(deque, mutex);
   }
 
+  @ReceiverDependentMutable
   private static final class SynchronizedDeque<E extends @Nullable Object>
       extends SynchronizedQueue<E> implements Deque<E> {
 
-    SynchronizedDeque(Deque<E> delegate, @CheckForNull Object mutex) {
+    SynchronizedDeque(@ReceiverDependentMutable Deque<E> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
@@ -2146,48 +2173,49 @@ public Iterator<E> descendingIterator() {
     private static final long serialVersionUID = 0;
   }
 
-  static <R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
-      Table<R, C, V> table(Table<R, C, V> table, @CheckForNull Object mutex) {
+  static <R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+      Table<R, C, V> table(Table<R, C, V> table, @CheckForNull @Readonly Object mutex) {
     return new SynchronizedTable<>(table, mutex);
   }
 
+  @ReceiverDependentMutable
   private static final class SynchronizedTable<
-          R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+          R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends SynchronizedObject implements Table<R, C, V> {
 
-    SynchronizedTable(Table<R, C, V> delegate, @CheckForNull Object mutex) {
+    SynchronizedTable(@ReceiverDependentMutable Table<R, C, V> delegate, @CheckForNull @Readonly Object mutex) {
       super(delegate, mutex);
     }
 
     @SuppressWarnings("unchecked")
     @Override
-    Table<R, C, V> delegate() {
+    @PolyMutable Table<R, C, V> delegate(@PolyMutable SynchronizedTable<R, C, V> this) {
       return (Table<R, C, V>) super.delegate();
     }
 
     @Override
-    public boolean contains(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+    public boolean contains(@Readonly SynchronizedTable<R, C, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
       synchronized (mutex) {
         return delegate().contains(rowKey, columnKey);
       }
     }
 
     @Override
-    public boolean containsRow(@CheckForNull Object rowKey) {
+    public boolean containsRow(@Readonly SynchronizedTable<R, C, V> this, @CheckForNull @Readonly Object rowKey) {
       synchronized (mutex) {
         return delegate().containsRow(rowKey);
       }
     }
 
     @Override
-    public boolean containsColumn(@CheckForNull Object columnKey) {
+    public boolean containsColumn(@Readonly SynchronizedTable<R, C, V> this, @CheckForNull @Readonly Object columnKey) {
       synchronized (mutex) {
         return delegate().containsColumn(columnKey);
       }
     }
 
     @Override
-    public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+    public boolean containsValue(@Readonly SynchronizedTable<R, C, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
       synchronized (mutex) {
         return delegate().containsValue(value);
       }
@@ -2195,28 +2223,28 @@ public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+    public V get(@Readonly SynchronizedTable<R, C, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
       synchronized (mutex) {
         return delegate().get(rowKey, columnKey);
       }
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly SynchronizedTable<R, C, V> this) {
       synchronized (mutex) {
         return delegate().isEmpty();
       }
     }
 
     @Override
-    public int size() {
+    public int size(@Readonly SynchronizedTable<R, C, V> this) {
       synchronized (mutex) {
         return delegate().size();
       }
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable SynchronizedTable<R, C, V> this) {
       synchronized (mutex) {
         delegate().clear();
       }
@@ -2224,14 +2252,14 @@ public void clear() {
 
     @Override
     @CheckForNull
-    public V put(R rowKey, C columnKey, V value) {
+    public V put(@Mutable SynchronizedTable<R, C, V> this, R rowKey, C columnKey, V value) {
       synchronized (mutex) {
         return delegate().put(rowKey, columnKey, value);
       }
     }
 
     @Override
-    public void putAll(Table<? extends R, ? extends C, ? extends V> table) {
+    public void putAll(@Mutable SynchronizedTable<R, C, V> this, @Readonly Table<? extends R, ? extends C, ? extends V> table) {
       synchronized (mutex) {
         delegate().putAll(table);
       }
@@ -2239,7 +2267,7 @@ public void putAll(Table<? extends R, ? extends C, ? extends V> table) {
 
     @Override
     @CheckForNull
-    public V remove(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+    public V remove(@Mutable SynchronizedTable<R, C, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
       synchronized (mutex) {
         return delegate().remove(rowKey, columnKey);
       }
@@ -2260,35 +2288,35 @@ public Map<R, V> column(C columnKey) {
     }
 
     @Override
-    public Set<Cell<R, C, V>> cellSet() {
+    public @PolyMutable Set<Cell<R, C, V>> cellSet(@PolyMutable SynchronizedTable<R, C, V> this) {
       synchronized (mutex) {
         return set(delegate().cellSet(), mutex);
       }
     }
 
     @Override
-    public Set<R> rowKeySet() {
+    public @PolyMutable Set<R> rowKeySet(@PolyMutable SynchronizedTable<R, C, V> this) {
       synchronized (mutex) {
         return set(delegate().rowKeySet(), mutex);
       }
     }
 
     @Override
-    public Set<C> columnKeySet() {
+    public @PolyMutable Set<C> columnKeySet(@PolyMutable SynchronizedTable<R, C, V> this) {
       synchronized (mutex) {
         return set(delegate().columnKeySet(), mutex);
       }
     }
 
     @Override
-    public Collection<V> values() {
+    public @PolyMutable Collection<V> values(@PolyMutable SynchronizedTable<R, C, V> this) {
       synchronized (mutex) {
         return collection(delegate().values(), mutex);
       }
     }
 
     @Override
-    public Map<R, Map<C, V>> rowMap() {
+    public @PolyMutable Map<R, Map<C, V>> rowMap(@PolyMutable SynchronizedTable<R, C, V> this) {
       synchronized (mutex) {
         return map(
             Maps.transformValues(
@@ -2304,7 +2332,7 @@ public Map<C, V> apply(Map<C, V> t) {
     }
 
     @Override
-    public Map<C, Map<R, V>> columnMap() {
+    public @PolyMutable Map<C, Map<R, V>> columnMap(@PolyMutable SynchronizedTable<R, C, V> this) {
       synchronized (mutex) {
         return map(
             Maps.transformValues(
@@ -2320,14 +2348,14 @@ public Map<R, V> apply(Map<R, V> t) {
     }
 
     @Override
-    public int hashCode(@UnknownSignedness SynchronizedTable<R, C, V> this) {
+    public int hashCode(@UnknownSignedness @Readonly SynchronizedTable<R, C, V> this) {
       synchronized (mutex) {
         return delegate().hashCode();
       }
     }
 
     @Override
-    public boolean equals(@CheckForNull Object obj) {
+    public boolean equals(@Readonly SynchronizedTable<R, C, V> this, @CheckForNull @Readonly Object obj) {
       if (this == obj) {
         return true;
       }
diff --git a/guava/src/com/google/common/collect/Table.java b/guava/src/com/google/common/collect/Table.java
index 5fe7202b0e1d..447de33eb90f 100644
--- a/guava/src/com/google/common/collect/Table.java
+++ b/guava/src/com/google/common/collect/Table.java
@@ -26,7 +26,13 @@
 import java.util.Set;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A collection that associates an ordered pair of keys, called a row key and a column key, with a
@@ -58,8 +64,10 @@
 @DoNotMock("Use ImmutableTable, HashBasedTable, or another implementation")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@AnnotatedFor("pico")
+@ReceiverDependentMutable
 public interface Table<
-    R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object> {
+    R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> {
   // TODO(jlevy): Consider adding methods similar to ConcurrentMap methods.
 
   // Accessors
@@ -71,29 +79,30 @@ public interface Table<
    * @param columnKey key of column to search for
    */
   boolean contains(
-      @CompatibleWith("R") @CheckForNull Object rowKey,
-      @CompatibleWith("C") @CheckForNull Object columnKey);
+          @Readonly Table<R, C, V> this,
+      @CompatibleWith("R") @CheckForNull @Readonly Object rowKey,
+      @CompatibleWith("C") @CheckForNull @Readonly Object columnKey);
 
   /**
    * Returns {@code true} if the table contains a mapping with the specified row key.
    *
    * @param rowKey key of row to search for
    */
-  boolean containsRow(@CompatibleWith("R") @CheckForNull Object rowKey);
+  boolean containsRow(@Readonly Table<R, C, V> this, @CompatibleWith("R") @CheckForNull @Readonly Object rowKey);
 
   /**
    * Returns {@code true} if the table contains a mapping with the specified column.
    *
    * @param columnKey key of column to search for
    */
-  boolean containsColumn(@CompatibleWith("C") @CheckForNull Object columnKey);
+  boolean containsColumn(@Readonly Table<R, C, V> this, @CompatibleWith("C") @CheckForNull @Readonly Object columnKey);
 
   /**
    * Returns {@code true} if the table contains a mapping with the specified value.
    *
    * @param value value to search for
    */
-  boolean containsValue(@CompatibleWith("V") @CheckForNull @UnknownSignedness Object value);
+  boolean containsValue(@Readonly Table<R, C, V> this, @CompatibleWith("V") @CheckForNull @UnknownSignedness @Readonly Object value);
 
   /**
    * Returns the value corresponding to the given row and column keys, or {@code null} if no such
@@ -104,33 +113,34 @@ boolean contains(
    */
   @CheckForNull
   V get(
-      @CompatibleWith("R") @CheckForNull Object rowKey,
-      @CompatibleWith("C") @CheckForNull Object columnKey);
+          @Readonly Table<R, C, V> this,
+      @CompatibleWith("R") @CheckForNull @Readonly Object rowKey,
+      @CompatibleWith("C") @CheckForNull @Readonly Object columnKey);
 
   /** Returns {@code true} if the table contains no mappings. */
-  boolean isEmpty();
+  boolean isEmpty(@Readonly Table<R, C, V> this);
 
   /** Returns the number of row key / column key / value mappings in the table. */
-  int size();
+  int size(@Readonly Table<R, C, V> this);
 
   /**
    * Compares the specified object with this table for equality. Two tables are equal when their
    * cell views, as returned by {@link #cellSet}, are equal.
    */
   @Override
-  boolean equals(@CheckForNull Object obj);
+  boolean equals(@Readonly Table<R, C, V> this, @CheckForNull @Readonly Object obj);
 
   /**
    * Returns the hash code for this table. The hash code of a table is defined as the hash code of
    * its cell view, as returned by {@link #cellSet}.
    */
   @Override
-  int hashCode(@UnknownSignedness Table<R, C, V> this);
+  int hashCode(@UnknownSignedness @Readonly Table<R, C, V> this);
 
   // Mutators
 
   /** Removes all mappings from the table. */
-  void clear();
+  void clear(@Mutable Table<R, C, V> this);
 
   /**
    * Associates the specified value with the specified keys. If the table already contained a
@@ -144,7 +154,7 @@ V get(
    */
   @CanIgnoreReturnValue
   @CheckForNull
-  V put(@ParametricNullness R rowKey, @ParametricNullness C columnKey, @ParametricNullness V value);
+  V put(@Mutable Table<R, C, V> this, @ParametricNullness R rowKey, @ParametricNullness C columnKey, @ParametricNullness V value);
 
   /**
    * Copies all mappings from the specified table to this table. The effect is equivalent to calling
@@ -152,7 +162,7 @@ V get(
    *
    * @param table the table to add to this table
    */
-  void putAll(Table<? extends R, ? extends C, ? extends V> table);
+  void putAll(@Mutable Table<R, C, V> this, @Readonly Table<? extends R, ? extends C, ? extends V> table);
 
   /**
    * Removes the mapping, if any, associated with the given keys.
@@ -163,9 +173,9 @@ V get(
    */
   @CanIgnoreReturnValue
   @CheckForNull
-  V remove(
-      @CompatibleWith("R") @CheckForNull Object rowKey,
-      @CompatibleWith("C") @CheckForNull Object columnKey);
+  V remove(@Mutable Table<R, C, V> this,
+      @CompatibleWith("R") @CheckForNull @Readonly Object rowKey,
+      @CompatibleWith("C") @CheckForNull @Readonly Object columnKey);
 
   // Views
 
@@ -179,7 +189,7 @@ V remove(
    * @param rowKey key of row to search for in the table
    * @return the corresponding map from column keys to values
    */
-  Map<C, V> row(@ParametricNullness R rowKey);
+  @PolyMutable Map<C, V> row(@PolyMutable Table<R, C, V> this, @ParametricNullness R rowKey);
 
   /**
    * Returns a view of all mappings that have the given column key. For each row key / column key /
@@ -191,7 +201,7 @@ V remove(
    * @param columnKey key of column to search for in the table
    * @return the corresponding map from row keys to values
    */
-  Map<R, V> column(@ParametricNullness C columnKey);
+  @PolyMutable Map<R, V> column(@PolyMutable Table<R, C, V> this, @ParametricNullness C columnKey);
 
   /**
    * Returns a set of all row key / column key / value triplets. Changes to the returned set will
@@ -200,7 +210,7 @@ V remove(
    *
    * @return set of table cells consisting of row key / column key / value triplets
    */
-  Set<Cell<R, C, V>> cellSet();
+  @PolyMutable Set<Cell<R, C, V>> cellSet(@PolyMutable Table<R, C, V> this);
 
   /**
    * Returns a set of row keys that have one or more values in the table. Changes to the set will
@@ -208,7 +218,7 @@ V remove(
    *
    * @return set of row keys
    */
-  Set<R> rowKeySet();
+  @PolyMutable Set<R> rowKeySet(@PolyMutable Table<R, C, V> this);
 
   /**
    * Returns a set of column keys that have one or more values in the table. Changes to the set will
@@ -216,7 +226,7 @@ V remove(
    *
    * @return set of column keys
    */
-  Set<C> columnKeySet();
+  @PolyMutable Set<C> columnKeySet(@PolyMutable Table<R, C, V> this);
 
   /**
    * Returns a collection of all values, which may contain duplicates. Changes to the returned
@@ -224,7 +234,7 @@ V remove(
    *
    * @return collection of values
    */
-  Collection<V> values();
+  @PolyMutable Collection<V> values(@PolyMutable Table<R, C, V> this);
 
   /**
    * Returns a view that associates each row key with the corresponding map from column keys to
@@ -237,7 +247,7 @@ V remove(
    *
    * @return a map view from each row key to a secondary map from column keys to values
    */
-  Map<R, Map<C, V>> rowMap();
+  @PolyMutable Map<R, Map<C, V>> rowMap(@PolyMutable Table<R, C, V> this);
 
   /**
    * Returns a view that associates each column key with the corresponding map from row keys to
@@ -250,33 +260,34 @@ V remove(
    *
    * @return a map view from each column key to a secondary map from row keys to values
    */
-  Map<C, Map<R, V>> columnMap();
+  @PolyMutable Map<C, Map<R, V>> columnMap(@PolyMutable Table<R, C, V> this);
 
   /**
    * Row key / column key / value triplet corresponding to a mapping in a table.
    *
    * @since 7.0
    */
+  @ReceiverDependentMutable
   interface Cell<
-      R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object> {
+      R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> {
     /** Returns the row key of this cell. */
     @ParametricNullness
-    R getRowKey();
+    R getRowKey(@Readonly Cell<R, C, V> this);
 
     /** Returns the column key of this cell. */
     @ParametricNullness
-    C getColumnKey();
+    C getColumnKey(@Readonly Cell<R, C, V> this);
 
     /** Returns the value of this cell. */
     @ParametricNullness
-    V getValue();
+    V getValue(@Readonly Cell<R, C, V> this);
 
     /**
      * Compares the specified object with this cell for equality. Two cells are equal when they have
      * equal row keys, column keys, and values.
      */
     @Override
-    boolean equals(@CheckForNull Object obj);
+    boolean equals(@Readonly Cell<R, C, V> this, @CheckForNull @Readonly Object obj);
 
     /**
      * Returns the hash code of this cell.
@@ -285,6 +296,6 @@ interface Cell<
      * e.getColumnKey(), e.getValue())}.
      */
     @Override
-    int hashCode(@UnknownSignedness Cell<R, C, V> this);
+    int hashCode(@UnknownSignedness @Readonly Cell<R, C, V> this);
   }
 }
diff --git a/guava/src/com/google/common/collect/TableCollectors.java b/guava/src/com/google/common/collect/TableCollectors.java
index 16fcb166969a..46213f37cd04 100644
--- a/guava/src/com/google/common/collect/TableCollectors.java
+++ b/guava/src/com/google/common/collect/TableCollectors.java
@@ -27,13 +27,16 @@
 import java.util.function.Supplier;
 import java.util.stream.Collector;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /** Collectors utilities for {@code common.collect.Table} internals. */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
 final class TableCollectors {
 
-  static <T extends @Nullable Object, R, C, V>
+  static <T extends @Nullable Object, R extends @Immutable Object, C extends @Immutable Object, V>
       Collector<T, ?, ImmutableTable<R, C, V>> toImmutableTable(
           Function<? super T, ? extends R> rowFunction,
           Function<? super T, ? extends C> columnFunction,
@@ -49,7 +52,7 @@ final class TableCollectors {
         ImmutableTable.Builder::build);
   }
 
-  static <T extends @Nullable Object, R, C, V>
+  static <T extends @Nullable Object, R extends @Immutable Object, C extends @Immutable Object, V>
       Collector<T, ?, ImmutableTable<R, C, V>> toImmutableTable(
           Function<? super T, ? extends R> rowFunction,
           Function<? super T, ? extends C> columnFunction,
@@ -80,10 +83,10 @@ final class TableCollectors {
   }
 
   static <
-          T extends @Nullable Object,
-          R extends @Nullable Object,
-          C extends @Nullable Object,
-          V extends @Nullable Object,
+          T extends @Nullable @Readonly Object,
+          R extends @Nullable @Immutable Object,
+          C extends @Nullable @Immutable Object,
+          V extends @Nullable @Readonly Object,
           I extends Table<R, C, V>>
       Collector<T, ?, I> toTable(
           java.util.function.Function<? super T, ? extends R> rowFunction,
@@ -101,10 +104,10 @@ final class TableCollectors {
   }
 
   static <
-          T extends @Nullable Object,
-          R extends @Nullable Object,
-          C extends @Nullable Object,
-          V extends @Nullable Object,
+          T extends @Nullable @Readonly Object,
+          R extends @Nullable @Immutable Object,
+          C extends @Nullable @Immutable Object,
+          V extends @Nullable @Readonly Object,
           I extends Table<R, C, V>>
       Collector<T, ?, I> toTable(
           java.util.function.Function<? super T, ? extends R> rowFunction,
@@ -135,9 +138,10 @@ final class TableCollectors {
         });
   }
 
-  private static final class ImmutableTableCollectorState<R, C, V> {
-    final List<MutableCell<R, C, V>> insertionOrder = new ArrayList<>();
-    final Table<R, C, MutableCell<R, C, V>> table = HashBasedTable.create();
+  @Immutable
+  private static final class ImmutableTableCollectorState<R extends @Immutable Object, C extends @Immutable Object, V> {
+    final @Mutable List<MutableCell<R, C, V>> insertionOrder = new ArrayList<>();
+    final @Mutable Table<R, C, MutableCell<R, C, V>> table = HashBasedTable.create();
 
     void put(R row, C column, V value, BinaryOperator<V> merger) {
       MutableCell<R, C, V> oldCell = table.get(row, column);
@@ -163,12 +167,12 @@ ImmutableTable<R, C, V> toTable() {
     }
   }
 
-  private static final class MutableCell<R, C, V> extends AbstractCell<R, C, V> {
+  private static final class MutableCell<R extends @Immutable Object, C extends @Immutable Object, V> extends AbstractCell<R, C, V> {
     private final R row;
     private final C column;
     private V value;
 
-    MutableCell(R row, C column, V value) {
+      MutableCell(R row, C column, V value) {
       this.row = checkNotNull(row, "row");
       this.column = checkNotNull(column, "column");
       this.value = checkNotNull(value, "value");
@@ -196,9 +200,9 @@ void merge(V value, BinaryOperator<V> mergeFunction) {
   }
 
   private static <
-          R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+          R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       void mergeTables(
-          Table<R, C, V> table,
+              Table<R, C, V> table,
           @ParametricNullness R row,
           @ParametricNullness C column,
           @ParametricNullness V value,
diff --git a/guava/src/com/google/common/collect/Tables.java b/guava/src/com/google/common/collect/Tables.java
index 0c994ea521fc..818c10052785 100644
--- a/guava/src/com/google/common/collect/Tables.java
+++ b/guava/src/com/google/common/collect/Tables.java
@@ -39,7 +39,13 @@
 import java.util.stream.Collector;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Provides static methods that involve a {@code Table}.
@@ -51,6 +57,7 @@
  * @author Louis Wasserman
  * @since 7.0
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
 public final class Tables {
@@ -70,10 +77,10 @@ private Tables() {}
    */
   @Beta
   public static <
-          T extends @Nullable Object,
-          R extends @Nullable Object,
-          C extends @Nullable Object,
-          V extends @Nullable Object,
+          T extends @Nullable @Readonly Object,
+          R extends @Nullable @Immutable Object,
+          C extends @Nullable @Immutable Object,
+          V extends @Nullable @Readonly Object,
           I extends Table<R, C, V>>
       Collector<T, ?, I> toTable(
           java.util.function.Function<? super T, ? extends R> rowFunction,
@@ -98,10 +105,10 @@ private Tables() {}
    * @since 21.0
    */
   public static <
-          T extends @Nullable Object,
-          R extends @Nullable Object,
-          C extends @Nullable Object,
-          V extends @Nullable Object,
+          T extends @Nullable @Readonly Object,
+          R extends @Nullable @Immutable Object,
+          C extends @Nullable @Immutable Object,
+          V extends @Nullable @Readonly Object,
           I extends Table<R, C, V>>
       Collector<T, ?, I> toTable(
           java.util.function.Function<? super T, ? extends R> rowFunction,
@@ -122,16 +129,17 @@ private Tables() {}
    * @param columnKey the column key to be associated with the returned cell
    * @param value the value to be associated with the returned cell
    */
-  public static <R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
-      Cell<R, C, V> immutableCell(
+  public static <R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+      @Immutable Cell<R, C, V> immutableCell(
           @ParametricNullness R rowKey,
           @ParametricNullness C columnKey,
           @ParametricNullness V value) {
     return new ImmutableCell<>(rowKey, columnKey, value);
   }
 
+  @Immutable
   static final class ImmutableCell<
-          R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+          R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractCell<R, C, V> implements Serializable {
     @ParametricNullness private final R rowKey;
     @ParametricNullness private final C columnKey;
@@ -167,14 +175,15 @@ public V getValue() {
     private static final long serialVersionUID = 0;
   }
 
+  @ReceiverDependentMutable
   abstract static class AbstractCell<
-          R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+          R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       implements Cell<R, C, V> {
     // needed for serialization
     AbstractCell() {}
 
     @Override
-    public boolean equals(@CheckForNull Object obj) {
+    public boolean equals(@Readonly AbstractCell<R, C, V> this, @CheckForNull @Readonly Object obj) {
       if (obj == this) {
         return true;
       }
@@ -188,12 +197,12 @@ public boolean equals(@CheckForNull Object obj) {
     }
 
     @Override
-    public int hashCode(@UnknownSignedness AbstractCell<R, C, V> this) {
+    public int hashCode(@UnknownSignedness @Readonly AbstractCell<R, C, V> this) {
       return Objects.hashCode(getRowKey(), getColumnKey(), getValue());
     }
 
     @Override
-    public String toString() {
+    public String toString(@Readonly AbstractCell<R, C, V> this) {
       return "(" + getRowKey() + "," + getColumnKey() + ")=" + getValue();
     }
   }
@@ -210,71 +219,73 @@ public String toString() {
    * columnKeySet().iterator()} doesn't. With a transposed {@link HashBasedTable}, it's the other
    * way around.
    */
-  public static <R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+  public static <R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Table<C, R, V> transpose(Table<R, C, V> table) {
     return (table instanceof TransposeTable)
         ? ((TransposeTable<R, C, V>) table).original
         : new TransposeTable<C, R, V>(table);
   }
 
+  @ReceiverDependentMutable
   private static class TransposeTable<
-          C extends @Nullable Object, R extends @Nullable Object, V extends @Nullable Object>
+          C extends @Nullable @Immutable Object, R extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends AbstractTable<C, R, V> {
     final Table<R, C, V> original;
 
-    TransposeTable(Table<R, C, V> original) {
+    TransposeTable(@ReceiverDependentMutable Table<R, C, V> original) {
       this.original = checkNotNull(original);
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable TransposeTable<C, R, V> this) {
       original.clear();
     }
 
     @Override
-    public Map<C, V> column(@ParametricNullness R columnKey) {
+    public @PolyMutable Map<C, V> column(@PolyMutable TransposeTable<C, R, V> this, @ParametricNullness R columnKey) {
       return original.row(columnKey);
     }
 
     @Override
-    public Set<R> columnKeySet() {
+    public @PolyMutable Set<R> columnKeySet(@PolyMutable TransposeTable<C, R, V> this) {
       return original.rowKeySet();
     }
 
     @Override
-    public Map<R, Map<C, V>> columnMap() {
+    public @PolyMutable Map<R, Map<C, V>> columnMap(@PolyMutable TransposeTable<C, R, V> this) {
       return original.rowMap();
     }
 
     @Override
-    public boolean contains(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+    public boolean contains(@Readonly TransposeTable<C, R, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
       return original.contains(columnKey, rowKey);
     }
 
     @Override
-    public boolean containsColumn(@CheckForNull Object columnKey) {
+    public boolean containsColumn(@Readonly TransposeTable<C, R, V> this, @CheckForNull @Readonly Object columnKey) {
       return original.containsRow(columnKey);
     }
 
     @Override
-    public boolean containsRow(@CheckForNull Object rowKey) {
+    public boolean containsRow(@Readonly TransposeTable<C, R, V> this, @CheckForNull @Readonly Object rowKey) {
       return original.containsColumn(rowKey);
     }
 
     @Override
-    public boolean containsValue(@CheckForNull @UnknownSignedness Object value) {
+    public boolean containsValue(@Readonly TransposeTable<C, R, V> this, @CheckForNull @UnknownSignedness @Readonly Object value) {
       return original.containsValue(value);
     }
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+    public V get(@Readonly TransposeTable<C, R, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
       return original.get(columnKey, rowKey);
     }
 
     @Override
     @CheckForNull
     public V put(
+            @Mutable TransposeTable<C, R, V> this,
         @ParametricNullness C rowKey,
         @ParametricNullness R columnKey,
         @ParametricNullness V value) {
@@ -282,38 +293,38 @@ public V put(
     }
 
     @Override
-    public void putAll(Table<? extends C, ? extends R, ? extends V> table) {
+    public void putAll(@Mutable TransposeTable<C, R, V> this, @Readonly Table<? extends C, ? extends R, ? extends V> table) {
       original.putAll(transpose(table));
     }
 
     @Override
     @CheckForNull
-    public V remove(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+    public V remove(@Mutable TransposeTable<C, R, V> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
       return original.remove(columnKey, rowKey);
     }
 
     @Override
-    public Map<R, V> row(@ParametricNullness C rowKey) {
+    public @PolyMutable Map<R, V> row(@PolyMutable TransposeTable<C, R, V> this, @ParametricNullness C rowKey) {
       return original.column(rowKey);
     }
 
     @Override
-    public Set<C> rowKeySet() {
+    public @PolyMutable Set<C> rowKeySet(@PolyMutable TransposeTable<C, R, V> this) {
       return original.columnKeySet();
     }
 
     @Override
-    public Map<C, Map<R, V>> rowMap() {
+    public @PolyMutable Map<C, Map<R, V>> rowMap(@PolyMutable TransposeTable<C, R, V> this) {
       return original.columnMap();
     }
 
     @Override
-    public int size() {
+    public int size(@Readonly TransposeTable<C, R, V> this) {
       return original.size();
     }
 
     @Override
-    public Collection<V> values() {
+    public @PolyMutable Collection<V> values(@PolyMutable TransposeTable<C, R, V> this) {
       return original.values();
     }
 
@@ -328,13 +339,13 @@ public Collection<V> values() {
 
     @SuppressWarnings("unchecked")
     @Override
-    Iterator<Cell<C, R, V>> cellIterator() {
+    Iterator<Cell<C, R, V>> cellIterator(@Readonly TransposeTable<C, R, V> this) {
       return Iterators.transform(original.cellSet().iterator(), (Function) TRANSPOSE_CELL);
     }
 
     @SuppressWarnings("unchecked")
     @Override
-    Spliterator<Cell<C, R, V>> cellSpliterator() {
+    Spliterator<Cell<C, R, V>> cellSpliterator(@Readonly TransposeTable<C, R, V> this) {
       return CollectSpliterators.map(original.cellSet().spliterator(), (Function) TRANSPOSE_CELL);
     }
   }
@@ -378,7 +389,7 @@ Spliterator<Cell<C, R, V>> cellSpliterator() {
    * @since 10.0
    */
   @Beta
-  public static <R, C, V> Table<R, C, V> newCustomTable(
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> Table<R, C, V> newCustomTable(
       Map<R, Map<C, V>> backingMap, Supplier<? extends Map<C, V>> factory) {
     checkArgument(backingMap.isEmpty());
     checkNotNull(factory);
@@ -409,37 +420,38 @@ public static <R, C, V> Table<R, C, V> newCustomTable(
    */
   @Beta
   public static <
-          R extends @Nullable Object,
-          C extends @Nullable Object,
-          V1 extends @Nullable Object,
-          V2 extends @Nullable Object>
+          R extends @Nullable @Immutable Object,
+          C extends @Nullable @Immutable Object,
+          V1 extends @Nullable @Readonly Object,
+          V2 extends @Nullable @Readonly Object>
       Table<R, C, V2> transformValues(
           Table<R, C, V1> fromTable, Function<? super V1, V2> function) {
     return new TransformedTable<>(fromTable, function);
   }
 
+  @ReceiverDependentMutable
   private static class TransformedTable<
-          R extends @Nullable Object,
-          C extends @Nullable Object,
-          V1 extends @Nullable Object,
-          V2 extends @Nullable Object>
+          R extends @Nullable @Immutable Object,
+          C extends @Nullable @Immutable Object,
+          V1 extends @Nullable @Readonly Object,
+          V2 extends @Nullable @Readonly Object>
       extends AbstractTable<R, C, V2> {
     final Table<R, C, V1> fromTable;
     final Function<? super V1, V2> function;
 
-    TransformedTable(Table<R, C, V1> fromTable, Function<? super V1, V2> function) {
+    TransformedTable(@ReceiverDependentMutable Table<R, C, V1> fromTable, Function<? super V1, V2> function) {
       this.fromTable = checkNotNull(fromTable);
       this.function = checkNotNull(function);
     }
 
     @Override
-    public boolean contains(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+    public boolean contains(@Readonly TransformedTable<R, C, V1, V2> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
       return fromTable.contains(rowKey, columnKey);
     }
 
     @Override
     @CheckForNull
-    public V2 get(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+    public V2 get(@Readonly TransformedTable<R, C, V1, V2> this, @CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
       // The function is passed a null input only when the table contains a null
       // value.
       // The cast is safe because of the contains() check.
@@ -449,12 +461,12 @@ public V2 get(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
     }
 
     @Override
-    public int size() {
+    public int size(@Readonly TransformedTable<R, C, V1, V2> this) {
       return fromTable.size();
     }
 
     @Override
-    public void clear() {
+    public void clear(@Mutable TransformedTable<R, C, V1, V2> this) {
       fromTable.clear();
     }
 
@@ -468,13 +480,13 @@ public V2 put(
     }
 
     @Override
-    public void putAll(Table<? extends R, ? extends C, ? extends V2> table) {
+    public void putAll(@Readonly Table<? extends R, ? extends C, ? extends V2> table) {
       throw new UnsupportedOperationException();
     }
 
     @Override
     @CheckForNull
-    public V2 remove(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
+    public V2 remove(@CheckForNull @Readonly Object rowKey, @CheckForNull @Readonly Object columnKey) {
       return contains(rowKey, columnKey)
           // The cast is safe because of the contains() check.
           ? function.apply(uncheckedCastNullableTToT(fromTable.remove(rowKey, columnKey)))
@@ -482,12 +494,12 @@ public V2 remove(@CheckForNull Object rowKey, @CheckForNull Object columnKey) {
     }
 
     @Override
-    public Map<C, V2> row(@ParametricNullness R rowKey) {
+    public @PolyMutable Map<C, V2> row(@PolyMutable TransformedTable<R, C, V1, V2> this, @ParametricNullness R rowKey) {
       return Maps.transformValues(fromTable.row(rowKey), function);
     }
 
     @Override
-    public Map<R, V2> column(@ParametricNullness C columnKey) {
+    public @PolyMutable Map<R, V2> column(@PolyMutable TransformedTable<R, C, V1, V2> this, @ParametricNullness C columnKey) {
       return Maps.transformValues(fromTable.column(columnKey), function);
     }
 
@@ -502,32 +514,32 @@ public Cell<R, C, V2> apply(Cell<R, C, V1> cell) {
     }
 
     @Override
-    Iterator<Cell<R, C, V2>> cellIterator() {
+    Iterator<Cell<R, C, V2>> cellIterator(@Readonly TransformedTable<R, C, V1, V2> this) {
       return Iterators.transform(fromTable.cellSet().iterator(), cellFunction());
     }
 
     @Override
-    Spliterator<Cell<R, C, V2>> cellSpliterator() {
+    Spliterator<Cell<R, C, V2>> cellSpliterator(@Readonly TransformedTable<R, C, V1, V2> this) {
       return CollectSpliterators.map(fromTable.cellSet().spliterator(), cellFunction());
     }
 
     @Override
-    public Set<R> rowKeySet() {
+    public @PolyMutable Set<R> rowKeySet(@PolyMutable TransformedTable<R, C, V1, V2> this) {
       return fromTable.rowKeySet();
     }
 
     @Override
-    public Set<C> columnKeySet() {
+    public @PolyMutable Set<C> columnKeySet(@PolyMutable TransformedTable<R, C, V1, V2> this) {
       return fromTable.columnKeySet();
     }
 
     @Override
-    Collection<V2> createValues() {
+    @PolyMutable Collection<V2> createValues(@PolyMutable TransformedTable<R, C, V1, V2> this) {
       return Collections2.transform(fromTable.values(), function);
     }
 
     @Override
-    public Map<R, Map<C, V2>> rowMap() {
+    public @PolyMutable Map<R, Map<C, V2>> rowMap(@PolyMutable TransformedTable<R, C, V1, V2> this) {
       Function<Map<C, V1>, Map<C, V2>> rowFunction =
           new Function<Map<C, V1>, Map<C, V2>>() {
             @Override
@@ -539,7 +551,7 @@ public Map<C, V2> apply(Map<C, V1> row) {
     }
 
     @Override
-    public Map<C, Map<R, V2>> columnMap() {
+    public @PolyMutable Map<C, Map<R, V2>> columnMap(@PolyMutable TransformedTable<R, C, V1, V2> this) {
       Function<Map<R, V1>, Map<R, V2>> columnFunction =
           new Function<Map<R, V1>, Map<R, V2>>() {
             @Override
@@ -563,28 +575,29 @@ public Map<R, V2> apply(Map<R, V1> column) {
    *
    * @since 11.0
    */
-  public static <R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
-      Table<R, C, V> unmodifiableTable(Table<? extends R, ? extends C, ? extends V> table) {
+  public static <R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+    @Readonly Table<R, C, V> unmodifiableTable(Table<? extends R, ? extends C, ? extends V> table) {
     return new UnmodifiableTable<>(table);
   }
 
+  @Immutable
   private static class UnmodifiableTable<
-          R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+          R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends ForwardingTable<R, C, V> implements Serializable {
-    final Table<? extends R, ? extends C, ? extends V> delegate;
+    final @Readonly Table<? extends R, ? extends C, ? extends V> delegate;
 
-    UnmodifiableTable(Table<? extends R, ? extends C, ? extends V> delegate) {
+    UnmodifiableTable(@Readonly Table<? extends R, ? extends C, ? extends V> delegate) {
       this.delegate = checkNotNull(delegate);
     }
 
     @SuppressWarnings("unchecked") // safe, covariant cast
     @Override
-    protected Table<R, C, V> delegate() {
+    protected @Readonly Table<R, C, V> delegate() {
       return (Table<R, C, V>) delegate;
     }
 
     @Override
-    public Set<Cell<R, C, V>> cellSet() {
+    public @Readonly Set<@Readonly Cell<R, C, V>> cellSet() {
       return Collections.unmodifiableSet(super.cellSet());
     }
 
@@ -594,17 +607,17 @@ public void clear() {
     }
 
     @Override
-    public Map<R, V> column(@ParametricNullness C columnKey) {
+    public @Readonly Map<R, V> column(@ParametricNullness C columnKey) {
       return Collections.unmodifiableMap(super.column(columnKey));
     }
 
     @Override
-    public Set<C> columnKeySet() {
+    public @Readonly Set<C> columnKeySet() {
       return Collections.unmodifiableSet(super.columnKeySet());
     }
 
     @Override
-    public Map<C, Map<R, V>> columnMap() {
+    public @Readonly Map<C, @Readonly Map<R, V>> columnMap() {
       Function<Map<R, V>, Map<R, V>> wrapper = unmodifiableWrapper();
       return Collections.unmodifiableMap(Maps.transformValues(super.columnMap(), wrapper));
     }
@@ -666,8 +679,8 @@ public Collection<V> values() {
    * @since 11.0
    */
   @Beta
-  public static <R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
-      RowSortedTable<R, C, V> unmodifiableRowSortedTable(
+  public static <R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
+    @Readonly RowSortedTable<R, C, V> unmodifiableRowSortedTable(
           RowSortedTable<R, ? extends C, ? extends V> table) {
     /*
      * It's not ? extends R, because it's technically not covariant in R. Specifically,
@@ -677,27 +690,28 @@ RowSortedTable<R, C, V> unmodifiableRowSortedTable(
     return new UnmodifiableRowSortedMap<>(table);
   }
 
+  @Immutable
   static final class UnmodifiableRowSortedMap<
-          R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+          R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       extends UnmodifiableTable<R, C, V> implements RowSortedTable<R, C, V> {
 
-    public UnmodifiableRowSortedMap(RowSortedTable<R, ? extends C, ? extends V> delegate) {
+    public UnmodifiableRowSortedMap(@Readonly RowSortedTable<R, ? extends C, ? extends V> delegate) {
       super(delegate);
     }
 
     @Override
-    protected RowSortedTable<R, C, V> delegate() {
+    protected @Readonly RowSortedTable<R, C, V> delegate() {
       return (RowSortedTable<R, C, V>) super.delegate();
     }
 
     @Override
-    public SortedMap<R, Map<C, V>> rowMap() {
+    public @Readonly SortedMap<R, Map<C, V>> rowMap() {
       Function<Map<C, V>, Map<C, V>> wrapper = unmodifiableWrapper();
       return Collections.unmodifiableSortedMap(Maps.transformValues(delegate().rowMap(), wrapper));
     }
 
     @Override
-    public SortedSet<R> rowKeySet() {
+    public @Readonly SortedSet<R> rowKeySet() {
       return Collections.unmodifiableSortedSet(delegate().rowKeySet());
     }
 
@@ -705,15 +719,15 @@ public SortedSet<R> rowKeySet() {
   }
 
   @SuppressWarnings("unchecked")
-  private static <K extends @Nullable Object, V extends @Nullable Object>
+  private static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Function<Map<K, V>, Map<K, V>> unmodifiableWrapper() {
     return (Function) UNMODIFIABLE_WRAPPER;
   }
 
   private static final Function<? extends Map<?, ?>, ? extends Map<?, ?>> UNMODIFIABLE_WRAPPER =
-      new Function<Map<Object, Object>, Map<Object, Object>>() {
+      new Function<Map<@Immutable Object, @Readonly Object>, Map<@Immutable Object, @Readonly Object>>() {
         @Override
-        public Map<Object, Object> apply(Map<Object, Object> input) {
+        public @Readonly Map<@Immutable Object, @Readonly Object> apply(Map<@Immutable Object, @Readonly Object> input) {
           return Collections.unmodifiableMap(input);
         }
       };
@@ -747,12 +761,12 @@ public Map<Object, Object> apply(Map<Object, Object> input) {
    * @return a synchronized view of the specified table
    * @since 22.0
    */
-  public static <R extends @Nullable Object, C extends @Nullable Object, V extends @Nullable Object>
+  public static <R extends @Nullable @Immutable Object, C extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
       Table<R, C, V> synchronizedTable(Table<R, C, V> table) {
     return Synchronized.table(table, null);
   }
 
-  static boolean equalsImpl(Table<?, ?, ?> table, @CheckForNull @UnknownSignedness Object obj) {
+  static boolean equalsImpl(@Readonly Table<?, ?, ?> table, @CheckForNull @UnknownSignedness @Readonly Object obj) {
     if (obj == table) {
       return true;
     } else if (obj instanceof Table) {
diff --git a/guava/src/com/google/common/collect/TopKSelector.java b/guava/src/com/google/common/collect/TopKSelector.java
index 20b17fdef10e..eed844317074 100644
--- a/guava/src/com/google/common/collect/TopKSelector.java
+++ b/guava/src/com/google/common/collect/TopKSelector.java
@@ -31,6 +31,7 @@
 import java.util.stream.Stream;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * An accumulator that selects the "top" {@code k} elements added to it, relative to a provided
@@ -56,7 +57,7 @@
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
 final class TopKSelector<
-    T extends @Nullable Object> {
+    T extends @Nullable @Readonly Object> {
 
   /**
    * Returns a {@code TopKSelector} that collects the lowest {@code k} elements added to it,
@@ -75,7 +76,7 @@ public static <T extends Comparable<? super T>> TopKSelector<T> least(int k) {
    *
    * @throws IllegalArgumentException if {@code k < 0} or {@code k > Integer.MAX_VALUE / 2}
    */
-  public static <T extends @Nullable Object> TopKSelector<T> least(
+  public static <T extends @Nullable @Readonly Object> TopKSelector<T> least(
       int k, Comparator<? super T> comparator) {
     return new TopKSelector<T>(comparator, k);
   }
diff --git a/guava/src/com/google/common/collect/TransformedIterator.java b/guava/src/com/google/common/collect/TransformedIterator.java
index 2456cecde991..8437b0039fd1 100644
--- a/guava/src/com/google/common/collect/TransformedIterator.java
+++ b/guava/src/com/google/common/collect/TransformedIterator.java
@@ -21,6 +21,9 @@
 import com.google.common.annotations.GwtCompatible;
 import java.util.Iterator;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * An iterator that transforms a backing iterator; for internal use. This avoids the object overhead
@@ -30,11 +33,12 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class TransformedIterator<F extends @Nullable Object, T extends @Nullable Object>
+@ReceiverDependentMutable
+abstract class TransformedIterator<F extends @Nullable @Readonly Object, T extends @Nullable @Readonly Object>
     implements Iterator<T> {
   final Iterator<? extends F> backingIterator;
 
-  TransformedIterator(Iterator<? extends F> backingIterator) {
+  TransformedIterator(@ReceiverDependentMutable Iterator<? extends F> backingIterator) {
     this.backingIterator = checkNotNull(backingIterator);
   }
 
@@ -42,18 +46,18 @@ abstract class TransformedIterator<F extends @Nullable Object, T extends @Nullab
   abstract T transform(@ParametricNullness F from);
 
   @Override
-  public final boolean hasNext() {
+  public final boolean hasNext(@Readonly TransformedIterator<F, T> this) {
     return backingIterator.hasNext();
   }
 
   @Override
   @ParametricNullness
-  public final T next() {
+  public final T next(@Mutable TransformedIterator<F, T> this) {
     return transform(backingIterator.next());
   }
 
   @Override
-  public final void remove() {
+  public final void remove(@Mutable TransformedIterator<F, T> this) {
     backingIterator.remove();
   }
 }
diff --git a/guava/src/com/google/common/collect/TransformedListIterator.java b/guava/src/com/google/common/collect/TransformedListIterator.java
index 094f2ab1221a..1a8461ae8829 100644
--- a/guava/src/com/google/common/collect/TransformedListIterator.java
+++ b/guava/src/com/google/common/collect/TransformedListIterator.java
@@ -21,6 +21,8 @@
 import java.util.ListIterator;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * An iterator that transforms a backing list iterator; for internal use. This avoids the object
@@ -30,9 +32,10 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-abstract class TransformedListIterator<F extends @Nullable Object, T extends @Nullable Object>
+@ReceiverDependentMutable
+abstract class TransformedListIterator<F extends @Nullable @Readonly Object, T extends @Nullable @Readonly Object>
     extends TransformedIterator<F, T> implements ListIterator<T> {
-  TransformedListIterator(ListIterator<? extends F> backingIterator) {
+  TransformedListIterator(@ReceiverDependentMutable ListIterator<? extends F> backingIterator) {
     super(backingIterator);
   }
 
diff --git a/guava/src/com/google/common/collect/TreeBasedTable.java b/guava/src/com/google/common/collect/TreeBasedTable.java
index a99deaf0c229..712b9a2d261e 100644
--- a/guava/src/com/google/common/collect/TreeBasedTable.java
+++ b/guava/src/com/google/common/collect/TreeBasedTable.java
@@ -34,6 +34,9 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 
 /**
  * Implementation of {@code Table} whose row keys and column keys are ordered by their natural
@@ -69,10 +72,11 @@
  */
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
-public class TreeBasedTable<R, C, V> extends StandardRowSortedTable<R, C, V> {
+@ReceiverDependentMutable
+public class TreeBasedTable<R extends @Immutable Object, C extends @Immutable Object, V> extends StandardRowSortedTable<R, C, V> {
   private final Comparator<? super C> columnComparator;
 
-  private static class Factory<C, V> implements Supplier<TreeMap<C, V>>, Serializable {
+  private static class Factory<C extends @Immutable Object, V> implements Supplier<TreeMap<C, V>>, Serializable {
     final Comparator<? super C> comparator;
 
     Factory(Comparator<? super C> comparator) {
@@ -105,7 +109,7 @@ public static <R extends Comparable, C extends Comparable, V> TreeBasedTable<R,
    * @param rowComparator the comparator that orders the row keys
    * @param columnComparator the comparator that orders the column keys
    */
-  public static <R, C, V> TreeBasedTable<R, C, V> create(
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> TreeBasedTable<R, C, V> create(
       Comparator<? super R> rowComparator, Comparator<? super C> columnComparator) {
     checkNotNull(rowComparator);
     checkNotNull(columnComparator);
@@ -116,7 +120,7 @@ public static <R, C, V> TreeBasedTable<R, C, V> create(
    * Creates a {@code TreeBasedTable} with the same mappings and sort order as the specified {@code
    * TreeBasedTable}.
    */
-  public static <R, C, V> TreeBasedTable<R, C, V> create(TreeBasedTable<R, C, ? extends V> table) {
+  public static <R extends @Immutable Object, C extends @Immutable Object, V> TreeBasedTable<R, C, V> create(TreeBasedTable<R, C, ? extends V> table) {
     TreeBasedTable<R, C, V> result =
         new TreeBasedTable<>(table.rowComparator(), table.columnComparator());
     result.putAll(table);
@@ -175,6 +179,7 @@ public SortedMap<C, V> row(R rowKey) {
     return new TreeRow(rowKey);
   }
 
+  @ReceiverDependentMutable
   private class TreeRow extends Row implements SortedMap<C, V> {
     @CheckForNull final C lowerBound;
     @CheckForNull final C upperBound;
@@ -208,7 +213,7 @@ int compare(Object a, Object b) {
       return cmp.compare(a, b);
     }
 
-    boolean rangeContains(@CheckForNull Object o) {
+    boolean rangeContains(@CheckForNull @Readonly Object o) {
       return o != null
           && (lowerBound == null || compare(lowerBound, o) <= 0)
           && (upperBound == null || compare(upperBound, o) > 0);
@@ -287,7 +292,7 @@ void maintainEmptyInvariant() {
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return rangeContains(key) && super.containsKey(key);
     }
 
diff --git a/guava/src/com/google/common/collect/TreeMultimap.java b/guava/src/com/google/common/collect/TreeMultimap.java
index 1451bfdac995..2670fdb6c419 100644
--- a/guava/src/com/google/common/collect/TreeMultimap.java
+++ b/guava/src/com/google/common/collect/TreeMultimap.java
@@ -33,6 +33,11 @@
 import java.util.TreeSet;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.dataflow.qual.SideEffectFree;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -74,18 +79,19 @@
  * @author Louis Wasserman
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible(serializable = true, emulated = true)
 @ElementTypesAreNonnullByDefault
-public class TreeMultimap<K extends @Nullable Object, V extends @Nullable Object>
+@ReceiverDependentMutable
+public class TreeMultimap<K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object>
     extends AbstractSortedKeySortedSetMultimap<K, V> {
-  private transient Comparator<? super K> keyComparator;
-  private transient Comparator<? super V> valueComparator;
+  private transient @Mutable Comparator<? super K> keyComparator;
+  private transient @Mutable Comparator<? super V> valueComparator;
 
   /**
    * Creates an empty {@code TreeMultimap} ordered by the natural ordering of its keys and values.
    */
-  public static <K extends Comparable, V extends Comparable> TreeMultimap<K, V> create() {
+  public static <K extends @Immutable Comparable, V extends @Readonly Comparable> TreeMultimap<K, V> create() {
     return new TreeMultimap<>(Ordering.natural(), Ordering.natural());
   }
 
@@ -96,7 +102,7 @@ public static <K extends Comparable, V extends Comparable> TreeMultimap<K, V> cr
    * @param keyComparator the comparator that determines the key ordering
    * @param valueComparator the comparator that determines the value ordering
    */
-  public static <K extends @Nullable Object, V extends @Nullable Object> TreeMultimap<K, V> create(
+  public static <K extends @Nullable @Immutable Object, V extends @Nullable @Readonly Object> TreeMultimap<K, V> create(
       Comparator<? super K> keyComparator, Comparator<? super V> valueComparator) {
     return new TreeMultimap<>(checkNotNull(keyComparator), checkNotNull(valueComparator));
   }
@@ -107,13 +113,13 @@ public static <K extends Comparable, V extends Comparable> TreeMultimap<K, V> cr
    *
    * @param multimap the multimap whose contents are copied to this multimap
    */
-  public static <K extends Comparable, V extends Comparable> TreeMultimap<K, V> create(
-      Multimap<? extends K, ? extends V> multimap) {
-    return new TreeMultimap<>(Ordering.natural(), Ordering.natural(), multimap);
+  public static <K extends @Immutable Comparable, V extends @Readonly Comparable> @PolyMutable TreeMultimap<K, V> create(
+          @PolyMutable Multimap<? extends K, ? extends V> multimap) {
+    return new @PolyMutable TreeMultimap<>(Ordering.natural(), Ordering.natural(), multimap);
   }
 
   TreeMultimap(@Nullable Comparator<? super K> keyComparator, @Nullable Comparator<? super V> valueComparator) {
-    super(new TreeMap<K, Collection<V>>(keyComparator));
+    super(new @ReceiverDependentMutable TreeMap<K, @ReceiverDependentMutable Collection<V>>(keyComparator));
     this.keyComparator = keyComparator;
     this.valueComparator = valueComparator;
   }
@@ -127,7 +133,7 @@ private TreeMultimap(
   }
 
   @Override
-  Map<K, Collection<V>> createAsMap() {
+  @PolyMutable Map<K, @PolyMutable Collection<V>> createAsMap(@PolyMutable TreeMultimap<K, V> this) {
     return createMaybeNavigableAsMap();
   }
 
@@ -139,12 +145,12 @@ Map<K, Collection<V>> createAsMap() {
    * @return a new {@code TreeSet} containing a collection of values for one key
    */
   @Override
-  SortedSet<V> createCollection() {
-    return new TreeSet<>(valueComparator);
+  @PolyMutable SortedSet<V> createCollection(@PolyMutable TreeMultimap<K, V> this) {
+    return new @PolyMutable TreeSet<>(valueComparator);
   }
 
   @Override
-  Collection<V> createCollection(@ParametricNullness K key) {
+  @PolyMutable Collection<V> createCollection(@PolyMutable TreeMultimap<K, V> this, @ParametricNullness K key) {
     if (key == null) {
       keyComparator().compare(key, key);
     }
@@ -157,20 +163,20 @@ Collection<V> createCollection(@ParametricNullness K key) {
    * @deprecated Use {@code ((NavigableSet<K>) multimap.keySet()).comparator()} instead.
    */
   @Deprecated
-  public @Nullable Comparator<? super K> keyComparator() {
+  public @Nullable Comparator<? super K> keyComparator(@Readonly TreeMultimap<K, V> this) {
     return keyComparator;
   }
 
   @Override
-  public @Nullable Comparator<? super V> valueComparator() {
+  public @Nullable Comparator<? super V> valueComparator(@Readonly TreeMultimap<K, V> this) {
     return valueComparator;
   }
 
   /** @since 14.0 (present with return type {@code SortedSet} since 2.0) */
   @Override
   @GwtIncompatible // NavigableSet
-  public NavigableSet<V> get(@ParametricNullness K key) {
-    return (NavigableSet<V>) super.get(key);
+  public @PolyMutable NavigableSet<V> get(@PolyMutable TreeMultimap<K, V> this, @ParametricNullness K key) {
+    return (@PolyMutable NavigableSet<V>) super.get(key);
   }
 
   /**
@@ -184,7 +190,7 @@ public NavigableSet<V> get(@ParametricNullness K key) {
    */
   @SideEffectFree
   @Override
-  public NavigableSet<K> keySet() {
+  public @PolyMutable NavigableSet<K> keySet(@PolyMutable TreeMultimap<K, V> this) {
     return (NavigableSet<K>) super.keySet();
   }
 
@@ -198,8 +204,8 @@ public NavigableSet<K> keySet() {
    * @since 14.0 (present with return type {@code SortedMap} since 2.0)
    */
   @Override
-  public NavigableMap<K, Collection<V>> asMap() {
-    return (NavigableMap<K, Collection<V>>) super.asMap();
+  public @PolyMutable NavigableMap<K, @PolyMutable Collection<V>> asMap(@PolyMutable TreeMultimap<K, V> this) {
+    return (@PolyMutable NavigableMap<K, @PolyMutable Collection<V>>) super.asMap();
   }
 
   /**
@@ -228,7 +234,7 @@ private void readObject(ObjectInputStream stream) throws IOException, ClassNotFo
   private static final long serialVersionUID = 0;
 
 @Pure
-public boolean equals(@Nullable Object arg0) { return super.equals(arg0); }
+public boolean equals(@Readonly TreeMultimap<K, V> this, @Nullable @Readonly Object arg0) { return super.equals(arg0); }
 
-public SortedSet<V> removeAll(@Nullable Object arg0) { return super.removeAll(arg0); }
+public @Readonly SortedSet<V> removeAll(@Mutable TreeMultimap<K, V> this, @Nullable @Readonly Object arg0) { return super.removeAll(arg0); }
 }
diff --git a/guava/src/com/google/common/collect/TreeMultiset.java b/guava/src/com/google/common/collect/TreeMultiset.java
index 2b3bd07940b6..d813886d6890 100644
--- a/guava/src/com/google/common/collect/TreeMultiset.java
+++ b/guava/src/com/google/common/collect/TreeMultiset.java
@@ -41,6 +41,10 @@
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.dataflow.qual.Pure;
 import org.checkerframework.framework.qual.AnnotatedFor;
@@ -65,7 +69,8 @@
 @AnnotatedFor({"nullness"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-public final class TreeMultiset<E extends @Nullable Object> extends AbstractSortedMultiset<E>
+@ReceiverDependentMutable
+public final class TreeMultiset<E extends @Readonly @Nullable Object> extends AbstractSortedMultiset<E>
     implements Serializable {
 
   /**
@@ -80,7 +85,7 @@ public final class TreeMultiset<E extends @Nullable Object> extends AbstractSort
    * <p>The type specification is {@code <E extends Comparable>}, instead of the more specific
    * {@code <E extends Comparable<? super E>>}, to support classes defined without generics.
    */
-  public static <E extends Comparable> TreeMultiset<E> create() {
+  public static <E extends @Readonly Comparable> TreeMultiset<E> create() {
     return new TreeMultiset<E>(Ordering.natural());
   }
 
@@ -96,7 +101,7 @@ public static <E extends Comparable> TreeMultiset<E> create() {
    *     indicates that the elements' <i>natural ordering</i> should be used.
    */
   @SuppressWarnings("unchecked")
-  public static <E extends @Nullable Object> TreeMultiset<E> create(
+  public static <E extends @Nullable @Readonly Object> TreeMultiset<E> create(
       @CheckForNull Comparator<? super E> comparator) {
     return (comparator == null)
         ? new TreeMultiset<E>((Comparator) Ordering.natural())
@@ -263,7 +268,7 @@ static int distinctElements(@CheckForNull AvlNode<?> node) {
 
   @CanIgnoreReturnValue
   @Override
-  public int add(@ParametricNullness E element, int occurrences) {
+  public int add(@Mutable TreeMultiset<E> this, @ParametricNullness E element, int occurrences) {
     checkNonnegative(occurrences, "occurrences");
     if (occurrences == 0) {
       return count(element);
@@ -285,7 +290,7 @@ public int add(@ParametricNullness E element, int occurrences) {
 
   @CanIgnoreReturnValue
   @Override
-  public int remove(@CheckForNull Object element, int occurrences) {
+  public int remove(@Mutable TreeMultiset<E> this, @CheckForNull Object element, int occurrences) {
     checkNonnegative(occurrences, "occurrences");
     if (occurrences == 0) {
       return count(element);
@@ -309,7 +314,7 @@ public int remove(@CheckForNull Object element, int occurrences) {
 
   @CanIgnoreReturnValue
   @Override
-  public int setCount(@ParametricNullness E element, int count) {
+  public int setCount(@Mutable TreeMultiset<E> this, @ParametricNullness E element, int count) {
     checkNonnegative(count, "count");
     if (!range.contains(element)) {
       checkArgument(count == 0);
@@ -331,7 +336,7 @@ public int setCount(@ParametricNullness E element, int count) {
 
   @CanIgnoreReturnValue
   @Override
-  public boolean setCount(@ParametricNullness E element, int oldCount, int newCount) {
+  public boolean setCount(@Mutable TreeMultiset<E> this, @ParametricNullness E element, int oldCount, int newCount) {
     checkNonnegative(newCount, "newCount");
     checkNonnegative(oldCount, "oldCount");
     checkArgument(range.contains(element));
@@ -354,7 +359,7 @@ public boolean setCount(@ParametricNullness E element, int oldCount, int newCoun
   }
 
   @Override
-  public void clear() {
+  public void clear(@Mutable TreeMultiset<E> this) {
     if (!range.hasLowerBound() && !range.hasUpperBound()) {
       // We can do this in O(n) rather than removing one by one, which could force rebalancing.
       for (AvlNode<E> current = header.succ(); current != header; ) {
@@ -589,7 +594,7 @@ void clear() {
     }
   }
 
-  private static final class AvlNode<E extends @Nullable Object> {
+  private @ReceiverDependentMutable static final class AvlNode<E extends @Readonly @Nullable Object> {
     /*
      * For "normal" nodes, the type of this field is `E`, not `@Nullable E` (though note that E is a
      * type that can include null, as in a TreeMultiset<@Nullable String>).
@@ -603,11 +608,11 @@ private static final class AvlNode<E extends @Nullable Object> {
     @CheckForNull private final E elem;
 
     // elemCount is 0 iff this node has been deleted.
-    private int elemCount;
+    private @Assignable int elemCount;
 
-    private int distinctElements;
-    private long totalCount;
-    private int height;
+    private @Assignable int distinctElements;
+    private @Assignable long totalCount;
+    private @Assignable int height;
     @CheckForNull private AvlNode<E> left;
     @CheckForNull private AvlNode<E> right;
     /*
@@ -1059,12 +1064,12 @@ public String toString() {
     }
   }
 
-  private static <T extends @Nullable Object> void successor(AvlNode<T> a, AvlNode<T> b) {
+  private static <T extends @Nullable @Readonly Object> void successor(AvlNode<T> a, AvlNode<T> b) {
     a.succ = b;
     b.pred = a;
   }
 
-  private static <T extends @Nullable Object> void successor(
+  private static <T extends @Nullable @Readonly Object> void successor(
       AvlNode<T> a, AvlNode<T> b, AvlNode<T> c) {
     successor(a, b);
     successor(b, c);
diff --git a/guava/src/com/google/common/collect/TreeRangeMap.java b/guava/src/com/google/common/collect/TreeRangeMap.java
index bde057238026..71507385f8ca 100644
--- a/guava/src/com/google/common/collect/TreeRangeMap.java
+++ b/guava/src/com/google/common/collect/TreeRangeMap.java
@@ -43,6 +43,10 @@
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -57,11 +61,12 @@
 @Beta
 @GwtIncompatible // NavigableMap
 @ElementTypesAreNonnullByDefault
-public final class TreeRangeMap<K extends Comparable, V> implements RangeMap<K, V> {
+@ReceiverDependentMutable
+public final class TreeRangeMap<K extends @Immutable Comparable, V> implements RangeMap<K, V> {
 
   private final NavigableMap<Cut<K>, RangeMapEntry<K, V>> entriesByLowerBound;
 
-  public static <K extends Comparable, V> TreeRangeMap<K, V> create() {
+  public static <K extends @Immutable Comparable, V> TreeRangeMap<K, V> create() {
     return new TreeRangeMap<>();
   }
 
@@ -69,7 +74,8 @@ private TreeRangeMap() {
     this.entriesByLowerBound = Maps.newTreeMap();
   }
 
-  private static final class RangeMapEntry<K extends Comparable, V>
+  @Immutable
+  private static final class RangeMapEntry<K extends @Immutable Comparable, V>
       extends AbstractMapEntry<Range<K>, V> {
     private final Range<K> range;
     private final V value;
@@ -84,24 +90,24 @@ private static final class RangeMapEntry<K extends Comparable, V>
     }
 
     @Override
-    public Range<K> getKey() {
+    public Range<K> getKey(@Readonly RangeMapEntry<K, V> this) {
       return range;
     }
 
     @Override
-    public V getValue() {
+    public V getValue(@Readonly RangeMapEntry<K, V> this) {
       return value;
     }
 
-    public boolean contains(K value) {
+    public boolean contains(@Readonly RangeMapEntry<K, V> this, K value) {
       return range.contains(value);
     }
 
-    Cut<K> getLowerBound() {
+    Cut<K> getLowerBound(@Readonly RangeMapEntry<K, V> this) {
       return range.lowerBound;
     }
 
-    Cut<K> getUpperBound() {
+    Cut<K> getUpperBound(@Readonly RangeMapEntry<K, V> this) {
       return range.upperBound;
     }
   }
@@ -115,8 +121,8 @@ public V get(K key) {
 
   @Override
   @CheckForNull
-  public Entry<Range<K>, V> getEntry(K key) {
-    Entry<Cut<K>, RangeMapEntry<K, V>> mapEntry =
+  public Entry<@Immutable Range<K>, V> getEntry(K key) {
+    Entry<@Immutable Cut<K>, RangeMapEntry<K, V>> mapEntry =
         entriesByLowerBound.floorEntry(Cut.belowValue(key));
     if (mapEntry != null && mapEntry.getValue().contains(key)) {
       return mapEntry.getValue();
@@ -161,8 +167,8 @@ private Range<K> coalescedRange(Range<K> range, V value) {
   }
 
   /** Returns the range that spans the given range and entry, if the entry can be coalesced. */
-  private static <K extends Comparable, V> Range<K> coalesce(
-      Range<K> range, V value, @CheckForNull Entry<Cut<K>, RangeMapEntry<K, V>> entry) {
+  private static <K extends @Immutable Comparable, V> Range<K> coalesce(
+      Range<K> range, V value, @CheckForNull Entry<@Immutable Cut<K>, RangeMapEntry<K, V>> entry) {
     if (entry != null
         && entry.getValue().getKey().isConnected(range)
         && entry.getValue().getValue().equals(value)) {
@@ -173,7 +179,7 @@ private static <K extends Comparable, V> Range<K> coalesce(
 
   @Override
   public void putAll(RangeMap<K, V> rangeMap) {
-    for (Entry<Range<K>, V> entry : rangeMap.asMapOfRanges().entrySet()) {
+    for (Entry<@Immutable Range<K>, V> entry : rangeMap.asMapOfRanges().entrySet()) {
       put(entry.getKey(), entry.getValue());
     }
   }
@@ -185,8 +191,8 @@ public void clear() {
 
   @Override
   public Range<K> span() {
-    Entry<Cut<K>, RangeMapEntry<K, V>> firstEntry = entriesByLowerBound.firstEntry();
-    Entry<Cut<K>, RangeMapEntry<K, V>> lastEntry = entriesByLowerBound.lastEntry();
+    Entry<@Immutable Cut<K>, RangeMapEntry<K, V>> firstEntry = entriesByLowerBound.firstEntry();
+    Entry<@Immutable Cut<K>, RangeMapEntry<K, V>> lastEntry = entriesByLowerBound.lastEntry();
     // Either both are null or neither is, but we check both to satisfy the nullness checker.
     if (firstEntry == null || lastEntry == null) {
       throw new NoSuchElementException();
@@ -333,23 +339,24 @@ public Map<Range<K>, V> asDescendingMapOfRanges() {
     return new AsMapOfRanges(entriesByLowerBound.descendingMap().values());
   }
 
+  @ReceiverDependentMutable
   private final class AsMapOfRanges extends IteratorBasedAbstractMap<Range<K>, V> {
 
     final Iterable<Entry<Range<K>, V>> entryIterable;
 
     @SuppressWarnings("unchecked") // it's safe to upcast iterables
-    AsMapOfRanges(Iterable<RangeMapEntry<K, V>> entryIterable) {
+    AsMapOfRanges(@ReceiverDependentMutable Iterable<RangeMapEntry<K, V>> entryIterable) {
       this.entryIterable = (Iterable) entryIterable;
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return get(key) != null;
     }
 
     @Override
     @CheckForNull
-    public V get(@CheckForNull @UnknownSignedness Object key) {
+    public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       if (key instanceof Range) {
         Range<?> range = (Range<?>) key;
         RangeMapEntry<K, V> rangeMapEntry = entriesByLowerBound.get(range.lowerBound);
@@ -386,6 +393,7 @@ private RangeMap<K, V> emptySubRangeMap() {
   }
 
   @SuppressWarnings("ConstantCaseForConstants") // This RangeMap is immutable.
+  @Immutable
   private static final RangeMap<Comparable<?>, Object> EMPTY_SUB_RANGE_MAP =
       new RangeMap<Comparable<?>, Object>() {
         @Override
@@ -492,7 +500,7 @@ public Entry<Range<K>, V> getEntry(K key) {
     @Override
     public Range<K> span() {
       Cut<K> lowerBound;
-      Entry<Cut<K>, RangeMapEntry<K, V>> lowerEntry =
+      Entry<@Immutable Cut<K>, RangeMapEntry<K, V>> lowerEntry =
           entriesByLowerBound.floorEntry(subRange.lowerBound);
       if (lowerEntry != null
           && lowerEntry.getValue().getUpperBound().compareTo(subRange.lowerBound) > 0) {
@@ -505,7 +513,7 @@ public Range<K> span() {
       }
 
       Cut<K> upperBound;
-      Entry<Cut<K>, RangeMapEntry<K, V>> upperEntry =
+      Entry<@Immutable Cut<K>, RangeMapEntry<K, V>> upperEntry =
           entriesByLowerBound.lowerEntry(subRange.upperBound);
       if (upperEntry == null) {
         throw new NoSuchElementException();
@@ -645,13 +653,13 @@ public String toString() {
     class SubRangeMapAsMap extends AbstractMap<Range<K>, V> {
 
       @Override
-      public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+      public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
         return get(key) != null;
       }
 
       @Override
       @CheckForNull
-      public V get(@CheckForNull @UnknownSignedness Object key) {
+      public V get(@CheckForNull @UnknownSignedness @Readonly Object key) {
         try {
           if (key instanceof Range) {
             @SuppressWarnings("unchecked") // we catch ClassCastExceptions
@@ -662,7 +670,7 @@ public V get(@CheckForNull @UnknownSignedness Object key) {
             RangeMapEntry<K, V> candidate = null;
             if (r.lowerBound.compareTo(subRange.lowerBound) == 0) {
               // r could be truncated on the left
-              Entry<Cut<K>, RangeMapEntry<K, V>> entry =
+              Entry<@Immutable Cut<K>, RangeMapEntry<K, V>> entry =
                   entriesByLowerBound.floorEntry(r.lowerBound);
               if (entry != null) {
                 candidate = entry.getValue();
@@ -685,7 +693,7 @@ public V get(@CheckForNull @UnknownSignedness Object key) {
 
       @Override
       @CheckForNull
-      public V remove(@CheckForNull @UnknownSignedness Object key) {
+      public V remove(@CheckForNull @UnknownSignedness @Readonly Object key) {
         V value = get(key);
         if (value != null) {
           // it's definitely in the map, so the cast and requireNonNull are safe
@@ -760,7 +768,7 @@ public boolean isEmpty() {
         };
       }
 
-      Iterator<Entry<Range<K>, V>> entryIterator() {
+      Iterator<Entry<Range<K>, V>> entryIterator(@Readonly SubRangeMapAsMap this) {
         if (subRange.isEmpty()) {
           return Iterators.emptyIterator();
         }
@@ -789,7 +797,7 @@ protected Entry<Range<K>, V> computeNext() {
       }
 
       @Override
-      public Collection<V> values() {
+      public @PolyMutable Collection<V> values(@PolyMutable SubRangeMapAsMap this) {
         return new Maps.Values<Range<K>, V>(this) {
           @Override
           public boolean removeAll(Collection<?> c) {
@@ -806,7 +814,7 @@ public boolean retainAll(Collection<?> c) {
   }
 
   @Override
-  public boolean equals(@CheckForNull Object o) {
+  public boolean equals(@Readonly TreeRangeMap<K, V> this, @CheckForNull @Readonly Object o) {
     if (o instanceof RangeMap) {
       RangeMap<?, ?> rangeMap = (RangeMap<?, ?>) o;
       return asMapOfRanges().equals(rangeMap.asMapOfRanges());
@@ -815,12 +823,12 @@ public boolean equals(@CheckForNull Object o) {
   }
 
   @Override
-  public int hashCode(@UnknownSignedness TreeRangeMap<K, V> this) {
+  public int hashCode(@UnknownSignedness @Readonly TreeRangeMap<K, V> this) {
     return asMapOfRanges().hashCode();
   }
 
   @Override
-  public String toString() {
+  public String toString(@Readonly TreeRangeMap<K, V> this) {
     return entriesByLowerBound.values().toString();
   }
 }
diff --git a/guava/src/com/google/common/collect/TreeRangeSet.java b/guava/src/com/google/common/collect/TreeRangeSet.java
index d82f5423a914..995971a77fec 100644
--- a/guava/src/com/google/common/collect/TreeRangeSet.java
+++ b/guava/src/com/google/common/collect/TreeRangeSet.java
@@ -32,7 +32,13 @@
 import java.util.TreeMap;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * An implementation of {@link RangeSet} backed by a {@link TreeMap}.
@@ -43,18 +49,19 @@
 @Beta
 @GwtIncompatible // uses NavigableMap
 @ElementTypesAreNonnullByDefault
-public class TreeRangeSet<C extends Comparable<?>> extends AbstractRangeSet<C>
+@ReceiverDependentMutable
+public class TreeRangeSet<C extends @Readonly Comparable<?>> extends AbstractRangeSet<C>
     implements Serializable {
 
   @VisibleForTesting final NavigableMap<Cut<C>, Range<C>> rangesByLowerBound;
 
   /** Creates an empty {@code TreeRangeSet} instance. */
-  public static <C extends Comparable<?>> TreeRangeSet<C> create() {
+  public static <C extends @Readonly Comparable<?>> TreeRangeSet<C> create() {
     return new TreeRangeSet<>(new TreeMap<Cut<C>, Range<C>>());
   }
 
   /** Returns a {@code TreeRangeSet} initialized with the ranges in the specified range set. */
-  public static <C extends Comparable<?>> TreeRangeSet<C> create(RangeSet<C> rangeSet) {
+  public static <C extends @Readonly Comparable<?>> TreeRangeSet<C> create(RangeSet<C> rangeSet) {
     TreeRangeSet<C> result = create();
     result.addAll(rangeSet);
     return result;
@@ -69,7 +76,7 @@ public static <C extends Comparable<?>> TreeRangeSet<C> create(RangeSet<C> range
    *
    * @since 21.0
    */
-  public static <C extends Comparable<?>> TreeRangeSet<C> create(Iterable<Range<C>> ranges) {
+  public static <C extends @Readonly Comparable<?>> TreeRangeSet<C> create(Iterable<Range<C>> ranges) {
     TreeRangeSet<C> result = create();
     result.addAll(ranges);
     return result;
@@ -79,43 +86,45 @@ private TreeRangeSet(NavigableMap<Cut<C>, Range<C>> rangesByLowerCut) {
     this.rangesByLowerBound = rangesByLowerCut;
   }
 
-  @CheckForNull private transient Set<Range<C>> asRanges;
-  @CheckForNull private transient Set<Range<C>> asDescendingSetOfRanges;
+  @CFComment("Change to @LazyFinal later")
+  @CheckForNull private transient @Assignable Set<Range<C>> asRanges;
+  @CheckForNull private transient @Assignable Set<Range<C>> asDescendingSetOfRanges;
 
   @Override
-  public Set<Range<C>> asRanges() {
+  public @PolyMutable Set<Range<C>> asRanges(@PolyMutable TreeRangeSet<C> this) {
     Set<Range<C>> result = asRanges;
     return (result == null) ? asRanges = new AsRanges(rangesByLowerBound.values()) : result;
   }
 
   @Override
-  public Set<Range<C>> asDescendingSetOfRanges() {
+  public @PolyMutable Set<Range<C>> asDescendingSetOfRanges(@PolyMutable TreeRangeSet<C> this) {
     Set<Range<C>> result = asDescendingSetOfRanges;
     return (result == null)
         ? asDescendingSetOfRanges = new AsRanges(rangesByLowerBound.descendingMap().values())
         : result;
   }
 
+  @ReceiverDependentMutable
   final class AsRanges extends ForwardingCollection<Range<C>> implements Set<Range<C>> {
 
     final Collection<Range<C>> delegate;
 
-    AsRanges(Collection<Range<C>> delegate) {
+    AsRanges(@ReceiverDependentMutable Collection<Range<C>> delegate) {
       this.delegate = delegate;
     }
 
     @Override
-    protected Collection<Range<C>> delegate() {
+    protected @PolyMutable Collection<Range<C>> delegate(@PolyMutable AsRanges this) {
       return delegate;
     }
 
     @Override
-    public int hashCode(@UnknownSignedness AsRanges this) {
+    public int hashCode(@UnknownSignedness @Readonly AsRanges this) {
       return Sets.hashCodeImpl(this);
     }
 
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object o) {
+    public boolean equals(@Readonly AsRanges this, @CheckForNull @UnknownSignedness @Readonly Object o) {
       return Sets.equalsImpl(this, o);
     }
   }
@@ -136,13 +145,13 @@ public Range<C> rangeContaining(C value) {
   @Override
   public boolean intersects(Range<C> range) {
     checkNotNull(range);
-    Entry<Cut<C>, Range<C>> ceilingEntry = rangesByLowerBound.ceilingEntry(range.lowerBound);
+    Entry<@Immutable Cut<C>, Range<C>> ceilingEntry = rangesByLowerBound.ceilingEntry(range.lowerBound);
     if (ceilingEntry != null
         && ceilingEntry.getValue().isConnected(range)
         && !ceilingEntry.getValue().intersection(range).isEmpty()) {
       return true;
     }
-    Entry<Cut<C>, Range<C>> priorEntry = rangesByLowerBound.lowerEntry(range.lowerBound);
+    Entry<@Immutable Cut<C>, Range<C>> priorEntry = rangesByLowerBound.lowerEntry(range.lowerBound);
     return priorEntry != null
         && priorEntry.getValue().isConnected(range)
         && !priorEntry.getValue().intersection(range).isEmpty();
@@ -151,23 +160,23 @@ public boolean intersects(Range<C> range) {
   @Override
   public boolean encloses(Range<C> range) {
     checkNotNull(range);
-    Entry<Cut<C>, Range<C>> floorEntry = rangesByLowerBound.floorEntry(range.lowerBound);
+    Entry<@Immutable Cut<C>, Range<C>> floorEntry = rangesByLowerBound.floorEntry(range.lowerBound);
     return floorEntry != null && floorEntry.getValue().encloses(range);
   }
 
   @CheckForNull
   private Range<C> rangeEnclosing(Range<C> range) {
     checkNotNull(range);
-    Entry<Cut<C>, Range<C>> floorEntry = rangesByLowerBound.floorEntry(range.lowerBound);
+    Entry<@Immutable Cut<C>, Range<C>> floorEntry = rangesByLowerBound.floorEntry(range.lowerBound);
     return (floorEntry != null && floorEntry.getValue().encloses(range))
         ? floorEntry.getValue()
         : null;
   }
 
   @Override
-  public Range<C> span() {
-    Entry<Cut<C>, Range<C>> firstEntry = rangesByLowerBound.firstEntry();
-    Entry<Cut<C>, Range<C>> lastEntry = rangesByLowerBound.lastEntry();
+  public Range<C> span(@Readonly TreeRangeSet<C> this) {
+    Entry<@Immutable Cut<C>, Range<C>> firstEntry = rangesByLowerBound.firstEntry();
+    Entry<@Immutable Cut<C>, Range<C>> lastEntry = rangesByLowerBound.lastEntry();
     if (firstEntry == null || lastEntry == null) {
       /*
        * Either both are null or neither is: Either the set is empty, or it's not. But we check both
@@ -191,7 +200,7 @@ public void add(Range<C> rangeToAdd) {
     Cut<C> lbToAdd = rangeToAdd.lowerBound;
     Cut<C> ubToAdd = rangeToAdd.upperBound;
 
-    Entry<Cut<C>, Range<C>> entryBelowLB = rangesByLowerBound.lowerEntry(lbToAdd);
+    Entry<@Immutable Cut<C>, Range<C>> entryBelowLB = rangesByLowerBound.lowerEntry(lbToAdd);
     if (entryBelowLB != null) {
       // { <
       Range<C> rangeBelowLB = entryBelowLB.getValue();
@@ -209,7 +218,7 @@ public void add(Range<C> rangeToAdd) {
       }
     }
 
-    Entry<Cut<C>, Range<C>> entryBelowUB = rangesByLowerBound.floorEntry(ubToAdd);
+    Entry<@Immutable Cut<C>, Range<C>> entryBelowUB = rangesByLowerBound.floorEntry(ubToAdd);
     if (entryBelowUB != null) {
       // { >
       Range<C> rangeBelowUB = entryBelowUB.getValue();
@@ -236,7 +245,7 @@ public void remove(Range<C> rangeToRemove) {
     // We will use { } to illustrate ranges currently in the range set, and < >
     // to illustrate rangeToRemove.
 
-    Entry<Cut<C>, Range<C>> entryBelowLB = rangesByLowerBound.lowerEntry(rangeToRemove.lowerBound);
+    Entry<@Immutable Cut<C>, Range<C>> entryBelowLB = rangesByLowerBound.lowerEntry(rangeToRemove.lowerBound);
     if (entryBelowLB != null) {
       // { <
       Range<C> rangeBelowLB = entryBelowLB.getValue();
@@ -276,16 +285,18 @@ private void replaceRangeWithSameLowerBound(Range<C> range) {
     }
   }
 
-  @CheckForNull private transient RangeSet<C> complement;
+  @CFComment("Change to @LazyFinal later")
+  @CheckForNull private transient @Assignable RangeSet<C> complement;
 
   @Override
-  public RangeSet<C> complement() {
+  public RangeSet<C> complement(@PolyMutable TreeRangeSet<C> this) {
     RangeSet<C> result = complement;
     return (result == null) ? complement = new Complement() : result;
   }
 
   @VisibleForTesting
-  static final class RangesByUpperBound<C extends Comparable<?>>
+  @ReceiverDependentMutable
+  static final class RangesByUpperBound<C extends @Readonly Comparable<?>>
       extends AbstractNavigableMap<Cut<C>, Range<C>> {
     private final NavigableMap<Cut<C>, Range<C>> rangesByLowerBound;
 
@@ -339,13 +350,13 @@ public Comparator<? super Cut<C>> comparator() {
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return get(key) != null;
     }
 
     @Override
     @CheckForNull
-    public Range<C> get(@CheckForNull @UnknownSignedness Object key) {
+    public Range<C> get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       if (key instanceof Cut) {
         try {
           @SuppressWarnings("unchecked") // we catch CCEs
@@ -453,7 +464,8 @@ public boolean isEmpty() {
     }
   }
 
-  private static final class ComplementRangesByLowerBound<C extends Comparable<?>>
+  @ReceiverDependentMutable
+  private static final class ComplementRangesByLowerBound<C extends @Readonly Comparable<?>>
       extends AbstractNavigableMap<Cut<C>, Range<C>> {
     private final NavigableMap<Cut<C>, Range<C>> positiveRangesByLowerBound;
     private final NavigableMap<Cut<C>, Range<C>> positiveRangesByUpperBound;
@@ -635,7 +647,7 @@ protected Entry<Cut<C>, Range<C>> computeNext() {
 
     @Override
     @CheckForNull
-    public Range<C> get(@CheckForNull @UnknownSignedness Object key) {
+    public Range<C> get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       if (key instanceof Cut) {
         try {
           @SuppressWarnings("unchecked")
@@ -653,11 +665,12 @@ public Range<C> get(@CheckForNull @UnknownSignedness Object key) {
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return get(key) != null;
     }
   }
 
+  @ReceiverDependentMutable
   private final class Complement extends TreeRangeSet<C> {
     Complement() {
       super(new ComplementRangesByLowerBound<C>(TreeRangeSet.this.rangesByLowerBound));
@@ -684,7 +697,8 @@ public RangeSet<C> complement() {
     }
   }
 
-  private static final class SubRangeSetRangesByLowerBound<C extends Comparable<?>>
+  @ReceiverDependentMutable
+  private static final class SubRangeSetRangesByLowerBound<C extends @Readonly Comparable<?>>
       extends AbstractNavigableMap<Cut<C>, Range<C>> {
     /**
      * lowerBoundWindow is the headMap/subMap/tailMap view; it only restricts the keys, and does not
@@ -747,13 +761,13 @@ public Comparator<? super Cut<C>> comparator() {
     }
 
     @Override
-    public boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+    public boolean containsKey(@CheckForNull @UnknownSignedness @Readonly Object key) {
       return get(key) != null;
     }
 
     @Override
     @CheckForNull
-    public Range<C> get(@CheckForNull @UnknownSignedness Object key) {
+    public Range<C> get(@CheckForNull @UnknownSignedness @Readonly Object key) {
       if (key instanceof Cut) {
         try {
           @SuppressWarnings("unchecked") // we catch CCE's
@@ -872,6 +886,7 @@ public RangeSet<C> subRangeSet(Range<C> view) {
     return view.equals(Range.<C>all()) ? this : new SubRangeSet(view);
   }
 
+  @ReceiverDependentMutable
   private final class SubRangeSet extends TreeRangeSet<C> {
     private final Range<C> restriction;
 
diff --git a/guava/src/com/google/common/collect/TreeTraverser.java b/guava/src/com/google/common/collect/TreeTraverser.java
index b5d2a4293ffa..c01ca5d6781a 100644
--- a/guava/src/com/google/common/collect/TreeTraverser.java
+++ b/guava/src/com/google/common/collect/TreeTraverser.java
@@ -76,6 +76,7 @@
 @Beta
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class TreeTraverser<T> {
 
   /**
diff --git a/guava/src/com/google/common/collect/UnmodifiableIterator.java b/guava/src/com/google/common/collect/UnmodifiableIterator.java
index 3ee09456d175..8453e2e6aa56 100644
--- a/guava/src/com/google/common/collect/UnmodifiableIterator.java
+++ b/guava/src/com/google/common/collect/UnmodifiableIterator.java
@@ -20,7 +20,10 @@
 import com.google.errorprone.annotations.DoNotCall;
 import java.util.Iterator;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * An iterator that does not support {@link #remove}.
@@ -32,10 +35,12 @@
  * @author Jared Levy
  * @since 2.0
  */
-@AnnotatedFor({"nullness"})
+@AnnotatedFor({"nullness", "pico"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class UnmodifiableIterator<E extends @Nullable Object> implements Iterator<E> {
+@Immutable
+@CFComment("PICO: wait, so unmodifiable means can still do next but can not do remove?")
+public abstract class UnmodifiableIterator<E extends @Nullable @Readonly Object> implements Iterator<E> {
   /** Constructor for use by subclasses. */
   protected UnmodifiableIterator() {}
 
diff --git a/guava/src/com/google/common/collect/UnmodifiableListIterator.java b/guava/src/com/google/common/collect/UnmodifiableListIterator.java
index f3d3b921b7dc..9e15bb95aabd 100644
--- a/guava/src/com/google/common/collect/UnmodifiableListIterator.java
+++ b/guava/src/com/google/common/collect/UnmodifiableListIterator.java
@@ -20,6 +20,9 @@
 import com.google.errorprone.annotations.DoNotCall;
 import java.util.ListIterator;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A list iterator that does not support {@link #remove}, {@link #add}, or {@link #set}.
@@ -27,9 +30,11 @@
  * @since 7.0
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
-public abstract class UnmodifiableListIterator<E extends @Nullable Object>
+@Immutable
+public abstract class UnmodifiableListIterator<E extends @Nullable @Readonly Object>
     extends UnmodifiableIterator<E> implements ListIterator<E> {
   /** Constructor for use by subclasses. */
   protected UnmodifiableListIterator() {}
diff --git a/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java b/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java
index 31f3c7197776..110a5f803059 100644
--- a/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java
+++ b/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java
@@ -22,6 +22,11 @@
 import java.util.NavigableSet;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Assignable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
+import org.checkerframework.framework.qual.CFComment;
 
 /**
  * Implementation of {@link Multisets#unmodifiableSortedMultiset(SortedMultiset)}, split out into
@@ -30,38 +35,41 @@
  *
  * @author Louis Wasserman
  */
+@AnnotatedFor("pico")
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
-final class UnmodifiableSortedMultiset<E extends @Nullable Object> extends UnmodifiableMultiset<E>
+@Immutable
+final class UnmodifiableSortedMultiset<E extends @Nullable @Readonly Object> extends UnmodifiableMultiset<E>
     implements SortedMultiset<E> {
-  UnmodifiableSortedMultiset(SortedMultiset<E> delegate) {
+  UnmodifiableSortedMultiset(@Readonly SortedMultiset<E> delegate) {
     super(delegate);
   }
 
   @Override
-  protected SortedMultiset<E> delegate() {
-    return (SortedMultiset<E>) super.delegate();
+  protected @Readonly SortedMultiset<E> delegate(@Readonly UnmodifiableSortedMultiset<E> this) {
+    return (@Readonly SortedMultiset<E>) super.delegate();
   }
 
   @Override
-  public Comparator<? super E> comparator() {
+  public Comparator<? super E> comparator(@Readonly UnmodifiableSortedMultiset<E> this) {
     return delegate().comparator();
   }
 
   @Override
-  NavigableSet<E> createElementSet() {
+  @Readonly NavigableSet<E> createElementSet(@Readonly UnmodifiableSortedMultiset<E> this) {
     return Sets.unmodifiableNavigableSet(delegate().elementSet());
   }
 
   @Override
-  public NavigableSet<E> elementSet() {
+  public @Readonly NavigableSet<E> elementSet(@Readonly UnmodifiableSortedMultiset<E> this) {
     return (NavigableSet<E>) super.elementSet();
   }
 
-  @CheckForNull private transient UnmodifiableSortedMultiset<E> descendingMultiset;
+  @CFComment("Change to @LazyFinal later")
+  @CheckForNull private transient @Assignable UnmodifiableSortedMultiset<E> descendingMultiset;
 
   @Override
-  public SortedMultiset<E> descendingMultiset() {
+  public @Readonly SortedMultiset<E> descendingMultiset(@Readonly UnmodifiableSortedMultiset<E> this) {
     UnmodifiableSortedMultiset<E> result = descendingMultiset;
     if (result == null) {
       result = new UnmodifiableSortedMultiset<>(delegate().descendingMultiset());
@@ -73,13 +81,13 @@ public SortedMultiset<E> descendingMultiset() {
 
   @Override
   @CheckForNull
-  public Entry<E> firstEntry() {
+  public @Readonly Entry<E> firstEntry(@Readonly UnmodifiableSortedMultiset<E> this) {
     return delegate().firstEntry();
   }
 
   @Override
   @CheckForNull
-  public Entry<E> lastEntry() {
+  public @Readonly Entry<E> lastEntry(@Readonly UnmodifiableSortedMultiset<E> this) {
     return delegate().lastEntry();
   }
 
@@ -96,12 +104,13 @@ public Entry<E> pollLastEntry() {
   }
 
   @Override
-  public SortedMultiset<E> headMultiset(@ParametricNullness E upperBound, BoundType boundType) {
+  public @Readonly SortedMultiset<E> headMultiset(@Readonly UnmodifiableSortedMultiset<E> this, @ParametricNullness E upperBound, BoundType boundType) {
     return Multisets.unmodifiableSortedMultiset(delegate().headMultiset(upperBound, boundType));
   }
 
   @Override
-  public SortedMultiset<E> subMultiset(
+  public @Readonly SortedMultiset<E> subMultiset(
+          @Readonly UnmodifiableSortedMultiset<E> this,
       @ParametricNullness E lowerBound,
       BoundType lowerBoundType,
       @ParametricNullness E upperBound,
@@ -111,7 +120,7 @@ public SortedMultiset<E> subMultiset(
   }
 
   @Override
-  public SortedMultiset<E> tailMultiset(@ParametricNullness E lowerBound, BoundType boundType) {
+  public @Readonly SortedMultiset<E> tailMultiset(@Readonly UnmodifiableSortedMultiset<E> this, @ParametricNullness E lowerBound, BoundType boundType) {
     return Multisets.unmodifiableSortedMultiset(delegate().tailMultiset(lowerBound, boundType));
   }
 
diff --git a/guava/src/com/google/common/collect/UsingToStringOrdering.java b/guava/src/com/google/common/collect/UsingToStringOrdering.java
index 70ad6fa2c419..09920c55363d 100644
--- a/guava/src/com/google/common/collect/UsingToStringOrdering.java
+++ b/guava/src/com/google/common/collect/UsingToStringOrdering.java
@@ -18,9 +18,12 @@
 
 import com.google.common.annotations.GwtCompatible;
 import java.io.Serializable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.dataflow.qual.Pure;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /** An ordering that uses the natural order of the string representation of the values. */
+@AnnotatedFor("pico")
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
 final class UsingToStringOrdering extends Ordering<Object> implements Serializable {
@@ -28,7 +31,7 @@ final class UsingToStringOrdering extends Ordering<Object> implements Serializab
 
   @Pure
   @Override
-  public int compare(Object left, Object right) {
+  public int compare(@Readonly Object left, @Readonly Object right) {
     return left.toString().compareTo(right.toString());
   }
 
diff --git a/guava/src/com/google/common/escape/Escapers.java b/guava/src/com/google/common/escape/Escapers.java
index 3d6ac9ef1d5b..1509ed604eb3 100644
--- a/guava/src/com/google/common/escape/Escapers.java
+++ b/guava/src/com/google/common/escape/Escapers.java
@@ -33,6 +33,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Escapers {
   private Escapers() {}
 
diff --git a/guava/src/com/google/common/escape/UnicodeEscaper.java b/guava/src/com/google/common/escape/UnicodeEscaper.java
index 34690ea08f43..5ddaf229de33 100644
--- a/guava/src/com/google/common/escape/UnicodeEscaper.java
+++ b/guava/src/com/google/common/escape/UnicodeEscaper.java
@@ -24,6 +24,8 @@
 import org.checkerframework.checker.index.qual.LengthOf;
 import org.checkerframework.checker.index.qual.LessThan;
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * An {@link Escaper} that converts literal text into a format safe for inclusion in a particular
@@ -55,6 +57,7 @@
  * @author David Beaumont
  * @since 15.0
  */
+@AnnotatedFor("pico")
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
 public abstract class UnicodeEscaper extends Escaper {
@@ -134,7 +137,7 @@ public String escape(String string) {
    * @throws IllegalArgumentException if the scanned sub-sequence of {@code csq} contains invalid
    *     surrogate pairs
    */
-  protected @IndexOrHigh("#1") int nextEscapeIndex(CharSequence csq, @IndexOrHigh("#1") int start, @IndexOrHigh("#1") int end) {
+  protected @IndexOrHigh("#1") int nextEscapeIndex(@Readonly CharSequence csq, @IndexOrHigh("#1") int start, @IndexOrHigh("#1") int end) {
     @IndexOrHigh("#1") int index = start;
     while (index < end) {
       int cp = codePointAt(csq, index, end);
@@ -161,6 +164,7 @@ public String escape(String string) {
    * @throws NullPointerException if {@code string} is null
    * @throws IllegalArgumentException if invalid surrogate characters are encountered
    */
+  @SuppressWarnings("pico:argument.type.incompatible") // cast from @Unique @Mutable to @Immutable
   protected final String escapeSlow(String s, @IndexOrHigh("#1") int index) {
     int end = s.length();
 
@@ -249,7 +253,7 @@ protected final String escapeSlow(String s, @IndexOrHigh("#1") int index) {
    * @return the Unicode code point for the given index or the negated value of the trailing high
    *     surrogate character at the end of the sequence
    */
-  protected static int codePointAt(CharSequence seq, @IndexFor("#1") int index, @IndexOrHigh("#1") int end) {
+  protected static int codePointAt(@Readonly CharSequence seq, @IndexFor("#1") int index, @IndexOrHigh("#1") int end) {
     checkNotNull(seq);
     @IndexOrHigh("seq") int indexInternal = index;
     if (indexInternal < end) {
diff --git a/guava/src/com/google/common/eventbus/SubscriberRegistry.java b/guava/src/com/google/common/eventbus/SubscriberRegistry.java
index c9df205fa76a..22290401265c 100644
--- a/guava/src/com/google/common/eventbus/SubscriberRegistry.java
+++ b/guava/src/com/google/common/eventbus/SubscriberRegistry.java
@@ -55,6 +55,7 @@
  * @author Colin Decker
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class SubscriberRegistry {
 
   /**
diff --git a/guava/src/com/google/common/graph/AbstractBaseGraph.java b/guava/src/com/google/common/graph/AbstractBaseGraph.java
index 3cecb5dc6fbe..0feff756848a 100644
--- a/guava/src/com/google/common/graph/AbstractBaseGraph.java
+++ b/guava/src/com/google/common/graph/AbstractBaseGraph.java
@@ -44,6 +44,7 @@
  * @param <N> Node parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 abstract class AbstractBaseGraph<N> implements BaseGraph<N> {
 
   /**
diff --git a/guava/src/com/google/common/graph/AbstractDirectedNetworkConnections.java b/guava/src/com/google/common/graph/AbstractDirectedNetworkConnections.java
index 8d2d1450cea8..38307ca32bdd 100644
--- a/guava/src/com/google/common/graph/AbstractDirectedNetworkConnections.java
+++ b/guava/src/com/google/common/graph/AbstractDirectedNetworkConnections.java
@@ -44,6 +44,7 @@
  * @param <E> Edge parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 abstract class AbstractDirectedNetworkConnections<N, E> implements NetworkConnections<N, E> {
   /** Keys are edges incoming to the origin node, values are the source node. */
   final Map<E, N> inEdgeMap;
diff --git a/guava/src/com/google/common/graph/AbstractNetwork.java b/guava/src/com/google/common/graph/AbstractNetwork.java
index 0dc773b6fa4e..bc3c19939bbd 100644
--- a/guava/src/com/google/common/graph/AbstractNetwork.java
+++ b/guava/src/com/google/common/graph/AbstractNetwork.java
@@ -54,6 +54,7 @@
  */
 @Beta
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class AbstractNetwork<N, E> implements Network<N, E> {
 
   @Override
diff --git a/guava/src/com/google/common/graph/AbstractUndirectedNetworkConnections.java b/guava/src/com/google/common/graph/AbstractUndirectedNetworkConnections.java
index 8f736d7baa23..180de3b4e0ff 100644
--- a/guava/src/com/google/common/graph/AbstractUndirectedNetworkConnections.java
+++ b/guava/src/com/google/common/graph/AbstractUndirectedNetworkConnections.java
@@ -33,6 +33,7 @@
  * @param <E> Edge parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 abstract class AbstractUndirectedNetworkConnections<N, E> implements NetworkConnections<N, E> {
   /** Keys are edges incident to the origin node, values are the node at the other end. */
   final Map<E, N> incidentEdgeMap;
diff --git a/guava/src/com/google/common/graph/DirectedGraphConnections.java b/guava/src/com/google/common/graph/DirectedGraphConnections.java
index e58a772970aa..3791b21892f3 100644
--- a/guava/src/com/google/common/graph/DirectedGraphConnections.java
+++ b/guava/src/com/google/common/graph/DirectedGraphConnections.java
@@ -43,6 +43,8 @@
 import javax.annotation.CheckForNull;
 
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -54,7 +56,8 @@
  * @param <V> Value parameter type
  */
 @ElementTypesAreNonnullByDefault
-final class DirectedGraphConnections<N, V> implements GraphConnections<N, V> {
+@SuppressWarnings("pico")
+final class DirectedGraphConnections<N extends @Immutable Object, V> implements GraphConnections<N, V> {
   /**
    * A wrapper class to indicate a node is both a predecessor and successor while still providing
    * the successor value.
@@ -86,7 +89,7 @@ static final class Pred<N> extends NodeConnection<N> {
       }
 
       @Override
-      public boolean equals(@CheckForNull Object that) {
+      public boolean equals(@CheckForNull @Readonly Object that) {
         if (that instanceof Pred) {
           return this.node.equals(((Pred<?>) that).node);
         } else {
@@ -95,7 +98,7 @@ public boolean equals(@CheckForNull Object that) {
       }
 
       @Override
-      public int hashCode(@UnknownSignedness Pred<N> this) {
+      public int hashCode(@UnknownSignedness @Readonly Pred<N> this) {
         // Adding the class hashCode to avoid a clash with Succ instances.
         return Pred.class.hashCode() + node.hashCode();
       }
diff --git a/guava/src/com/google/common/graph/DirectedMultiNetworkConnections.java b/guava/src/com/google/common/graph/DirectedMultiNetworkConnections.java
index 3f2195fca519..18eb6d3199f4 100644
--- a/guava/src/com/google/common/graph/DirectedMultiNetworkConnections.java
+++ b/guava/src/com/google/common/graph/DirectedMultiNetworkConnections.java
@@ -41,6 +41,7 @@
  * @param <E> Edge parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class DirectedMultiNetworkConnections<N, E> extends AbstractDirectedNetworkConnections<N, E> {
 
   private DirectedMultiNetworkConnections(
diff --git a/guava/src/com/google/common/graph/DirectedNetworkConnections.java b/guava/src/com/google/common/graph/DirectedNetworkConnections.java
index e1db65708eb0..839f4d76508d 100644
--- a/guava/src/com/google/common/graph/DirectedNetworkConnections.java
+++ b/guava/src/com/google/common/graph/DirectedNetworkConnections.java
@@ -33,6 +33,7 @@
  * @param <E> Edge parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class DirectedNetworkConnections<N, E> extends AbstractDirectedNetworkConnections<N, E> {
 
   DirectedNetworkConnections(Map<E, N> inEdgeMap, Map<E, N> outEdgeMap, int selfLoopCount) {
diff --git a/guava/src/com/google/common/graph/ElementOrder.java b/guava/src/com/google/common/graph/ElementOrder.java
index 24a0c1de65a9..5434f5bb14ac 100644
--- a/guava/src/com/google/common/graph/ElementOrder.java
+++ b/guava/src/com/google/common/graph/ElementOrder.java
@@ -48,6 +48,7 @@
 @Beta
 @Immutable
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class ElementOrder<T> {
   private final Type type;
 
diff --git a/guava/src/com/google/common/graph/EndpointPairIterator.java b/guava/src/com/google/common/graph/EndpointPairIterator.java
index 7096dbe3da2a..b1fe1a7426eb 100644
--- a/guava/src/com/google/common/graph/EndpointPairIterator.java
+++ b/guava/src/com/google/common/graph/EndpointPairIterator.java
@@ -33,6 +33,7 @@
  * @author James Sexton
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 abstract class EndpointPairIterator<N> extends AbstractIterator<EndpointPair<N>> {
   private final BaseGraph<N> graph;
   private final Iterator<N> nodeIterator;
diff --git a/guava/src/com/google/common/graph/Graphs.java b/guava/src/com/google/common/graph/Graphs.java
index 6ab9f5661557..44aed9246168 100644
--- a/guava/src/com/google/common/graph/Graphs.java
+++ b/guava/src/com/google/common/graph/Graphs.java
@@ -45,6 +45,7 @@
  */
 @Beta
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Graphs {
 
   private Graphs() {}
diff --git a/guava/src/com/google/common/graph/ImmutableGraph.java b/guava/src/com/google/common/graph/ImmutableGraph.java
index f829e9699993..df0c9888f424 100644
--- a/guava/src/com/google/common/graph/ImmutableGraph.java
+++ b/guava/src/com/google/common/graph/ImmutableGraph.java
@@ -46,6 +46,7 @@
 @Beta
 @Immutable(containerOf = {"N"})
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public class ImmutableGraph<N> extends ForwardingGraph<N> {
   @SuppressWarnings("Immutable") // The backing graph must be immutable.
   private final BaseGraph<N> backingGraph;
diff --git a/guava/src/com/google/common/graph/ImmutableNetwork.java b/guava/src/com/google/common/graph/ImmutableNetwork.java
index c29f8a392813..9fcded75d194 100644
--- a/guava/src/com/google/common/graph/ImmutableNetwork.java
+++ b/guava/src/com/google/common/graph/ImmutableNetwork.java
@@ -45,7 +45,7 @@
  */
 @Beta
 @Immutable(containerOf = {"N", "E"})
-@SuppressWarnings("Immutable") // Extends StandardNetwork but uses ImmutableMaps.
+@SuppressWarnings({"Immutable", "pico"}) // Extends StandardNetwork but uses ImmutableMaps.
 @ElementTypesAreNonnullByDefault
 public final class ImmutableNetwork<N, E> extends StandardNetwork<N, E> {
 
diff --git a/guava/src/com/google/common/graph/ImmutableValueGraph.java b/guava/src/com/google/common/graph/ImmutableValueGraph.java
index eb17067fca43..8808922dfee5 100644
--- a/guava/src/com/google/common/graph/ImmutableValueGraph.java
+++ b/guava/src/com/google/common/graph/ImmutableValueGraph.java
@@ -43,7 +43,7 @@
  */
 @Beta
 @Immutable(containerOf = {"N", "V"})
-@SuppressWarnings("Immutable") // Extends StandardValueGraph but uses ImmutableMaps.
+@SuppressWarnings({"Immutable", "pico"}) // Extends StandardValueGraph but uses ImmutableMaps.
 @ElementTypesAreNonnullByDefault
 public final class ImmutableValueGraph<N, V> extends StandardValueGraph<N, V> {
 
diff --git a/guava/src/com/google/common/graph/MapIteratorCache.java b/guava/src/com/google/common/graph/MapIteratorCache.java
index 4d9e67ad471c..f9df2570e138 100644
--- a/guava/src/com/google/common/graph/MapIteratorCache.java
+++ b/guava/src/com/google/common/graph/MapIteratorCache.java
@@ -28,7 +28,12 @@
 import javax.annotation.CheckForNull;
 
 import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A map-like data structure that wraps a backing map and caches values while iterating through
@@ -44,8 +49,10 @@
  *
  * @author James Sexton
  */
+@AnnotatedFor("pico")
 @ElementTypesAreNonnullByDefault
-class MapIteratorCache<K, V> {
+@ReceiverDependentMutable
+class MapIteratorCache<K extends @Immutable Object, V> {
   private final Map<K, V> backingMap;
 
   /*
@@ -59,13 +66,13 @@ class MapIteratorCache<K, V> {
    */
   @CheckForNull private transient volatile Entry<K, V> cacheEntry;
 
-  MapIteratorCache(Map<K, V> backingMap) {
+  MapIteratorCache(@ReceiverDependentMutable Map<K, V> backingMap) {
     this.backingMap = checkNotNull(backingMap);
   }
 
   @CanIgnoreReturnValue
   @CheckForNull
-  final V put(K key, V value) {
+  final V put(@Mutable MapIteratorCache<K, V> this, K key, V value) {
     checkNotNull(key);
     checkNotNull(value);
     clearCache();
@@ -74,19 +81,19 @@ final V put(K key, V value) {
 
   @CanIgnoreReturnValue
   @CheckForNull
-  final V remove(Object key) {
+  final V remove(@Mutable MapIteratorCache<K, V> this, @Readonly Object key) {
     checkNotNull(key);
     clearCache();
     return backingMap.remove(key);
   }
 
-  final void clear() {
+  final void clear(@Mutable MapIteratorCache<K, V> this) {
     clearCache();
     backingMap.clear();
   }
 
   @CheckForNull
-  V get(Object key) {
+  V get(@Readonly MapIteratorCache<K, V> this, @Readonly Object key) {
     checkNotNull(key);
     V value = getIfCached(key);
     // TODO(b/192579700): Use a ternary once it no longer confuses our nullness checker.
@@ -98,16 +105,16 @@ V get(Object key) {
   }
 
   @CheckForNull
-  final V getWithoutCaching(Object key) {
+  final V getWithoutCaching(@Readonly MapIteratorCache<K, V> this, @Readonly Object key) {
     checkNotNull(key);
     return backingMap.get(key);
   }
 
-  final boolean containsKey(@CheckForNull @UnknownSignedness Object key) {
+  final boolean containsKey(@Readonly MapIteratorCache<K, V> this, @CheckForNull @UnknownSignedness @Readonly Object key) {
     return getIfCached(key) != null || backingMap.containsKey(key);
   }
 
-  final Set<K> unmodifiableKeySet() {
+  final @Readonly Set<K> unmodifiableKeySet() {
     return new AbstractSet<K>() {
       @Override
       public UnmodifiableIterator<K> iterator() {
@@ -134,7 +141,7 @@ public K next() {
       }
 
       @Override
-      public boolean contains(@CheckForNull @UnknownSignedness Object key) {
+      public boolean contains(@CheckForNull @UnknownSignedness @Readonly Object key) {
         return containsKey(key);
       }
     };
@@ -143,7 +150,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object key) {
   // Internal methods (package-visible, but treat as only subclass-visible)
 
   @CheckForNull
-  V getIfCached(@CheckForNull Object key) {
+  V getIfCached(@Readonly MapIteratorCache<K, V> this, @CheckForNull @Readonly Object key) {
     Entry<K, V> entry = cacheEntry; // store local reference for thread-safety
 
     // Check cache. We use == on purpose because it's cheaper and a cache miss is ok.
@@ -153,7 +160,7 @@ V getIfCached(@CheckForNull Object key) {
     return null;
   }
 
-  void clearCache() {
+  void clearCache(@Mutable MapIteratorCache<K, V> this) {
     cacheEntry = null;
   }
 }
diff --git a/guava/src/com/google/common/graph/MapRetrievalCache.java b/guava/src/com/google/common/graph/MapRetrievalCache.java
index ada78f28414d..fe3bac2524bc 100644
--- a/guava/src/com/google/common/graph/MapRetrievalCache.java
+++ b/guava/src/com/google/common/graph/MapRetrievalCache.java
@@ -28,6 +28,7 @@
  * @author James Sexton
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class MapRetrievalCache<K, V> extends MapIteratorCache<K, V> {
   // See the note about volatile in the superclass.
   @CheckForNull private transient volatile CacheEntry<K, V> cacheEntry1;
diff --git a/guava/src/com/google/common/graph/MultiEdgesConnecting.java b/guava/src/com/google/common/graph/MultiEdgesConnecting.java
index 141b97f76201..7daa53ce9463 100644
--- a/guava/src/com/google/common/graph/MultiEdgesConnecting.java
+++ b/guava/src/com/google/common/graph/MultiEdgesConnecting.java
@@ -38,6 +38,7 @@
  * @param <E> Edge parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 abstract class MultiEdgesConnecting<E> extends AbstractSet<E> {
 
   private final Map<E, ?> outEdgeToNode;
diff --git a/guava/src/com/google/common/graph/StandardNetwork.java b/guava/src/com/google/common/graph/StandardNetwork.java
index 2aa103f99683..5f94de8b6548 100644
--- a/guava/src/com/google/common/graph/StandardNetwork.java
+++ b/guava/src/com/google/common/graph/StandardNetwork.java
@@ -49,6 +49,7 @@
  * @param <E> Edge parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 class StandardNetwork<N, E> extends AbstractNetwork<N, E> {
   private final boolean isDirected;
   private final boolean allowsParallelEdges;
diff --git a/guava/src/com/google/common/graph/StandardValueGraph.java b/guava/src/com/google/common/graph/StandardValueGraph.java
index ab3ae582b55e..686eb16c550c 100644
--- a/guava/src/com/google/common/graph/StandardValueGraph.java
+++ b/guava/src/com/google/common/graph/StandardValueGraph.java
@@ -44,6 +44,7 @@
  * @param <V> Value parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 class StandardValueGraph<N, V> extends AbstractValueGraph<N, V> {
   private final boolean isDirected;
   private final boolean allowsSelfLoops;
diff --git a/guava/src/com/google/common/graph/Traverser.java b/guava/src/com/google/common/graph/Traverser.java
index fb594b440365..47f59d840d3e 100644
--- a/guava/src/com/google/common/graph/Traverser.java
+++ b/guava/src/com/google/common/graph/Traverser.java
@@ -65,6 +65,7 @@
     "Call forGraph or forTree, passing a lambda or a Graph with the desired edges (built with"
         + " GraphBuilder)")
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class Traverser<N> {
   private final SuccessorsFunction<N> successorFunction;
 
diff --git a/guava/src/com/google/common/graph/UndirectedGraphConnections.java b/guava/src/com/google/common/graph/UndirectedGraphConnections.java
index 4eeb2328fe0e..89d52789acba 100644
--- a/guava/src/com/google/common/graph/UndirectedGraphConnections.java
+++ b/guava/src/com/google/common/graph/UndirectedGraphConnections.java
@@ -38,6 +38,7 @@
  * @param <V> Value parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class UndirectedGraphConnections<N, V> implements GraphConnections<N, V> {
   private final Map<N, V> adjacentNodeValues;
 
diff --git a/guava/src/com/google/common/graph/UndirectedMultiNetworkConnections.java b/guava/src/com/google/common/graph/UndirectedMultiNetworkConnections.java
index e151ed3ee580..552d1127414d 100644
--- a/guava/src/com/google/common/graph/UndirectedMultiNetworkConnections.java
+++ b/guava/src/com/google/common/graph/UndirectedMultiNetworkConnections.java
@@ -41,6 +41,7 @@
  * @param <E> Edge parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class UndirectedMultiNetworkConnections<N, E>
     extends AbstractUndirectedNetworkConnections<N, E> {
 
diff --git a/guava/src/com/google/common/graph/UndirectedNetworkConnections.java b/guava/src/com/google/common/graph/UndirectedNetworkConnections.java
index 190897f8825d..62783afeebd4 100644
--- a/guava/src/com/google/common/graph/UndirectedNetworkConnections.java
+++ b/guava/src/com/google/common/graph/UndirectedNetworkConnections.java
@@ -33,6 +33,7 @@
  * @param <E> Edge parameter type
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class UndirectedNetworkConnections<N, E> extends AbstractUndirectedNetworkConnections<N, E> {
 
   UndirectedNetworkConnections(Map<E, N> incidentEdgeMap) {
diff --git a/guava/src/com/google/common/hash/BloomFilterStrategies.java b/guava/src/com/google/common/hash/BloomFilterStrategies.java
index e20b398082c5..38f794a65635 100644
--- a/guava/src/com/google/common/hash/BloomFilterStrategies.java
+++ b/guava/src/com/google/common/hash/BloomFilterStrategies.java
@@ -41,6 +41,7 @@
  * @author Kurt Alfred Kluever
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 enum BloomFilterStrategies implements BloomFilter.Strategy {
   /**
    * See "Less Hashing, Same Performance: Building a Better Bloom Filter" by Adam Kirsch and Michael
diff --git a/guava/src/com/google/common/hash/Funnel.java b/guava/src/com/google/common/hash/Funnel.java
index 9d80dabcf6ed..dd48dd2400be 100644
--- a/guava/src/com/google/common/hash/Funnel.java
+++ b/guava/src/com/google/common/hash/Funnel.java
@@ -18,6 +18,8 @@
 import com.google.errorprone.annotations.DoNotMock;
 import java.io.Serializable;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * An object which can send data from an object of type {@code T} into a {@code PrimitiveSink}.
@@ -42,10 +44,11 @@
  * @author Dimitris Andreou
  * @since 11.0
  */
+@AnnotatedFor("pico")
 @Beta
 @DoNotMock("Implement with a lambda")
 @ElementTypesAreNonnullByDefault
-public interface Funnel<T extends @Nullable Object> extends Serializable {
+public interface Funnel<T extends @Nullable @Readonly Object> extends Serializable {
 
   /**
    * Sends a stream of data from the {@code from} object into the sink {@code into}. There is no
diff --git a/guava/src/com/google/common/hash/Funnels.java b/guava/src/com/google/common/hash/Funnels.java
index 62b3525b1d90..654865b998d0 100644
--- a/guava/src/com/google/common/hash/Funnels.java
+++ b/guava/src/com/google/common/hash/Funnels.java
@@ -37,6 +37,7 @@
  */
 @Beta
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Funnels {
   private Funnels() {}
 
diff --git a/guava/src/com/google/common/hash/Hashing.java b/guava/src/com/google/common/hash/Hashing.java
index 5c0d6789c978..c08502c9e03f 100644
--- a/guava/src/com/google/common/hash/Hashing.java
+++ b/guava/src/com/google/common/hash/Hashing.java
@@ -49,6 +49,7 @@
  * @since 11.0
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Hashing {
   /**
    * Returns a general-purpose, <b>temporary-use</b>, non-cryptographic hash function. The algorithm
diff --git a/guava/src/com/google/common/hash/LittleEndianByteArray.java b/guava/src/com/google/common/hash/LittleEndianByteArray.java
index a93a76ff63d9..decac6587bdd 100644
--- a/guava/src/com/google/common/hash/LittleEndianByteArray.java
+++ b/guava/src/com/google/common/hash/LittleEndianByteArray.java
@@ -27,6 +27,7 @@
  * @author Kyle Maddison
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class LittleEndianByteArray {
 
   /** The instance that actually does the work; delegates to Unsafe or a pure-Java fallback. */
diff --git a/guava/src/com/google/common/io/AppendableWriter.java b/guava/src/com/google/common/io/AppendableWriter.java
index 1e0c0ec9ad11..3ddcba729070 100644
--- a/guava/src/com/google/common/io/AppendableWriter.java
+++ b/guava/src/com/google/common/io/AppendableWriter.java
@@ -26,6 +26,9 @@
 import org.checkerframework.checker.index.qual.LTLengthOf;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * Writer that places all output on an {@link Appendable} target. If the target is {@link Flushable}
@@ -35,6 +38,7 @@
  * @author Sebastian Kanthak
  * @since 1.0
  */
+@AnnotatedFor("pico")
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
 class AppendableWriter extends Writer {
@@ -55,7 +59,7 @@ class AppendableWriter extends Writer {
    */
 
   @Override
-  public void write(char[] cbuf, @IndexOrHigh("#1") int off, @NonNegative @LTLengthOf(value = "#1", offset = "#2 - 1") int len) throws IOException {
+  public void write(char @Immutable [] cbuf, @IndexOrHigh("#1") int off, @NonNegative @LTLengthOf(value = "#1", offset = "#2 - 1") int len) throws IOException {
     checkNotClosed();
     // It turns out that creating a new String is usually as fast, or faster
     // than wrapping cbuf in a light-weight CharSequence.
@@ -111,14 +115,14 @@ public Writer append(char c) throws IOException {
   }
 
   @Override
-  public Writer append(@CheckForNull CharSequence charSeq) throws IOException {
+  public Writer append(@CheckForNull @Readonly CharSequence charSeq) throws IOException {
     checkNotClosed();
     target.append(charSeq);
     return this;
   }
 
   @Override
-  public Writer append(@CheckForNull CharSequence charSeq, @IndexOrHigh("#1") int start, @IndexOrHigh("#1") int end) throws IOException {
+  public Writer append(@CheckForNull @Readonly CharSequence charSeq, @IndexOrHigh("#1") int start, @IndexOrHigh("#1") int end) throws IOException {
     checkNotClosed();
     target.append(charSeq, start, end);
     return this;
diff --git a/guava/src/com/google/common/io/BaseEncoding.java b/guava/src/com/google/common/io/BaseEncoding.java
index 01f58a29d32a..48fa46ef5e08 100644
--- a/guava/src/com/google/common/io/BaseEncoding.java
+++ b/guava/src/com/google/common/io/BaseEncoding.java
@@ -134,6 +134,7 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class BaseEncoding {
   // TODO(lowasser): consider making encodeTo(Appendable, byte[], int, int) public.
 
diff --git a/guava/src/com/google/common/io/ByteSource.java b/guava/src/com/google/common/io/ByteSource.java
index 5e4fd4171fbb..4fef15381c85 100644
--- a/guava/src/com/google/common/io/ByteSource.java
+++ b/guava/src/com/google/common/io/ByteSource.java
@@ -78,6 +78,7 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class ByteSource {
 
   /** Constructor for use by subclasses. */
diff --git a/guava/src/com/google/common/io/CharSink.java b/guava/src/com/google/common/io/CharSink.java
index f804daeb7a38..3908a68e7870 100644
--- a/guava/src/com/google/common/io/CharSink.java
+++ b/guava/src/com/google/common/io/CharSink.java
@@ -52,6 +52,7 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class CharSink {
 
   /** Constructor for use by subclasses. */
diff --git a/guava/src/com/google/common/io/CharSource.java b/guava/src/com/google/common/io/CharSource.java
index 24a67af5c6e7..e97043c4c7c0 100644
--- a/guava/src/com/google/common/io/CharSource.java
+++ b/guava/src/com/google/common/io/CharSource.java
@@ -83,6 +83,7 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class CharSource {
 
   /** Constructor for use by subclasses. */
diff --git a/guava/src/com/google/common/io/Files.java b/guava/src/com/google/common/io/Files.java
index 046674c995af..57eaa4b40538 100644
--- a/guava/src/com/google/common/io/Files.java
+++ b/guava/src/com/google/common/io/Files.java
@@ -70,6 +70,7 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Files {
 
   /** Maximum loop count when creating temp directories. */
diff --git a/guava/src/com/google/common/math/BigIntegerMath.java b/guava/src/com/google/common/math/BigIntegerMath.java
index c4d0823a9181..9a755cba55ff 100644
--- a/guava/src/com/google/common/math/BigIntegerMath.java
+++ b/guava/src/com/google/common/math/BigIntegerMath.java
@@ -38,6 +38,7 @@
 import org.checkerframework.checker.index.qual.LessThan;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.index.qual.Positive;
+import org.checkerframework.checker.pico.qual.Immutable;
 
 /**
  * A class for arithmetic on values of type {@code BigInteger}.
@@ -53,6 +54,7 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@Immutable
 public final class BigIntegerMath {
   /**
    * Returns the smallest power of two greater than or equal to {@code x}. This is equivalent to
diff --git a/guava/src/com/google/common/math/Quantiles.java b/guava/src/com/google/common/math/Quantiles.java
index 01bdcc71db90..64c882a93a6b 100644
--- a/guava/src/com/google/common/math/Quantiles.java
+++ b/guava/src/com/google/common/math/Quantiles.java
@@ -135,6 +135,7 @@
 @Beta
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Quantiles {
 
   /** Specifies the computation of a median (i.e. the 1st 2-quantile). */
diff --git a/guava/src/com/google/common/math/ToDoubleRounder.java b/guava/src/com/google/common/math/ToDoubleRounder.java
index 2e7e7fae0944..126c11437a71 100644
--- a/guava/src/com/google/common/math/ToDoubleRounder.java
+++ b/guava/src/com/google/common/math/ToDoubleRounder.java
@@ -20,13 +20,17 @@
 import com.google.common.annotations.GwtIncompatible;
 import java.math.RoundingMode;
 
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.framework.qual.CFComment;
+
 /**
  * Helper type to implement rounding {@code X} to a representable {@code double} value according to
  * a {@link RoundingMode}.
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
-abstract class ToDoubleRounder<X extends Number & Comparable<X>> {
+@CFComment("pico: explicit argument to avoid type annotation invalidate error")
+abstract class ToDoubleRounder<X extends @Immutable Number & Comparable<X>> {
   /**
    * Returns x rounded to either the greatest double less than or equal to the precise value of x,
    * or the least double greater than or equal to the precise value of x.
diff --git a/guava/src/com/google/common/net/InetAddresses.java b/guava/src/com/google/common/net/InetAddresses.java
index 8d7db9fe72ec..6903d1070049 100644
--- a/guava/src/com/google/common/net/InetAddresses.java
+++ b/guava/src/com/google/common/net/InetAddresses.java
@@ -98,6 +98,7 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class InetAddresses {
   private static final int IPV4_PART_COUNT = 4;
   private static final int IPV6_PART_COUNT = 8;
diff --git a/guava/src/com/google/common/net/InternetDomainName.java b/guava/src/com/google/common/net/InternetDomainName.java
index fc68bbc62ec8..6fb685224919 100644
--- a/guava/src/com/google/common/net/InternetDomainName.java
+++ b/guava/src/com/google/common/net/InternetDomainName.java
@@ -75,6 +75,7 @@
 @GwtCompatible(emulated = true)
 @Immutable
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class InternetDomainName {
 
   private static final CharMatcher DOTS_MATCHER = CharMatcher.anyOf(".\u3002\uFF0E\uFF61");
diff --git a/guava/src/com/google/common/net/MediaType.java b/guava/src/com/google/common/net/MediaType.java
index b66e7773c237..286f01356dca 100644
--- a/guava/src/com/google/common/net/MediaType.java
+++ b/guava/src/com/google/common/net/MediaType.java
@@ -74,6 +74,7 @@
 @GwtCompatible
 @Immutable
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class MediaType {
   private static final String CHARSET_ATTRIBUTE = "charset";
   private static final ImmutableListMultimap<String, String> UTF_8_CONSTANT_PARAMETERS =
diff --git a/guava/src/com/google/common/primitives/Booleans.java b/guava/src/com/google/common/primitives/Booleans.java
index 3ea13c9103aa..57935961fa23 100644
--- a/guava/src/com/google/common/primitives/Booleans.java
+++ b/guava/src/com/google/common/primitives/Booleans.java
@@ -59,6 +59,7 @@
 @AnnotatedFor({"signedness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Booleans {
   private Booleans() {}
 
diff --git a/guava/src/com/google/common/primitives/Bytes.java b/guava/src/com/google/common/primitives/Bytes.java
index 4079eae3c3a1..e4fd16cd4a27 100644
--- a/guava/src/com/google/common/primitives/Bytes.java
+++ b/guava/src/com/google/common/primitives/Bytes.java
@@ -63,6 +63,7 @@
 @AnnotatedFor({"signedness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Bytes {
   private Bytes() {}
 
diff --git a/guava/src/com/google/common/primitives/Chars.java b/guava/src/com/google/common/primitives/Chars.java
index d7154f447bd2..aa1c71819ffd 100644
--- a/guava/src/com/google/common/primitives/Chars.java
+++ b/guava/src/com/google/common/primitives/Chars.java
@@ -67,6 +67,7 @@
 @AnnotatedFor({"signedness"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Chars {
   private Chars() {}
 
diff --git a/guava/src/com/google/common/primitives/Doubles.java b/guava/src/com/google/common/primitives/Doubles.java
index a9af81b38025..a09d78b405ec 100644
--- a/guava/src/com/google/common/primitives/Doubles.java
+++ b/guava/src/com/google/common/primitives/Doubles.java
@@ -66,6 +66,7 @@
 @AnnotatedFor({"signedness"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Doubles extends DoublesMethodsForWeb {
   private Doubles() {}
 
diff --git a/guava/src/com/google/common/primitives/Floats.java b/guava/src/com/google/common/primitives/Floats.java
index 146fd575ae67..6c1c1f327631 100644
--- a/guava/src/com/google/common/primitives/Floats.java
+++ b/guava/src/com/google/common/primitives/Floats.java
@@ -64,6 +64,7 @@
 @AnnotatedFor({"signedness"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Floats extends FloatsMethodsForWeb {
   private Floats() {}
 
diff --git a/guava/src/com/google/common/primitives/Ints.java b/guava/src/com/google/common/primitives/Ints.java
index bd4a49b7c8a8..30ca6b296096 100644
--- a/guava/src/com/google/common/primitives/Ints.java
+++ b/guava/src/com/google/common/primitives/Ints.java
@@ -66,6 +66,7 @@
 @AnnotatedFor({"signedness"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Ints extends IntsMethodsForWeb {
   private Ints() {}
 
diff --git a/guava/src/com/google/common/primitives/Longs.java b/guava/src/com/google/common/primitives/Longs.java
index 2bfc3f7bb570..7a235dca34ef 100644
--- a/guava/src/com/google/common/primitives/Longs.java
+++ b/guava/src/com/google/common/primitives/Longs.java
@@ -44,6 +44,11 @@
 import org.checkerframework.checker.index.qual.Positive;
 import org.checkerframework.checker.index.qual.SubstringIndexFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Mutable;
+import org.checkerframework.checker.pico.qual.ReceiverDependentMutable;
+import org.checkerframework.checker.pico.qual.PolyMutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.Signed;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.common.value.qual.IntRange;
@@ -64,6 +69,7 @@
 @AnnotatedFor({"signedness"})
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Longs {
   private Longs() {}
 
@@ -122,7 +128,7 @@ public static int compare(long a, long b) {
    * @param target a primitive {@code long} value
    * @return {@code true} if {@code array[i] == target} for some value of {@code i}
    */
-  public static boolean contains(long[] array, long target) {
+  public static boolean contains(long @Readonly [] array, long target) {
     for (long value : array) {
       if (value == target) {
         return true;
@@ -139,12 +145,12 @@ public static boolean contains(long[] array, long target) {
    * @return the least index {@code i} for which {@code array[i] == target}, or {@code -1} if no
    *     such index exists.
    */
-  public static @IndexOrLow("#1") int indexOf(long[] array, long target) {
+  public static @IndexOrLow("#1") int indexOf(long @Readonly [] array, long target) {
     return indexOf(array, target, 0, array.length);
   }
 
   // TODO(kevinb): consider making this public
-  private static @IndexOrLow("#1") @LessThan("#4") int indexOf(long[] array, long target, @IndexOrHigh("#1") int start, @IndexOrHigh("#1") int end) {
+  private static @IndexOrLow("#1") @LessThan("#4") int indexOf(long @Readonly [] array, long target, @IndexOrHigh("#1") int start, @IndexOrHigh("#1") int end) {
     for (int i = start; i < end; i++) {
       if (array[i] == target) {
         return i;
@@ -163,7 +169,7 @@ public static boolean contains(long[] array, long target) {
    * @param array the array to search for the sequence {@code target}
    * @param target the array to search for as a sub-sequence of {@code array}
    */
-  public static @LTEqLengthOf("#1") @SubstringIndexFor(value = "#1", offset="#2.length - 1") int indexOf(long[] array, long[] target) {
+  public static @LTEqLengthOf("#1") @SubstringIndexFor(value = "#1", offset="#2.length - 1") int indexOf(long @Readonly [] array, long @Readonly [] target) {
     checkNotNull(array, "array");
     checkNotNull(target, "target");
     if (target.length == 0) {
@@ -190,12 +196,12 @@ public static boolean contains(long[] array, long target) {
    * @return the greatest index {@code i} for which {@code array[i] == target}, or {@code -1} if no
    *     such index exists.
    */
-  public static @IndexOrLow("#1") int lastIndexOf(long[] array, long target) {
+  public static @IndexOrLow("#1") int lastIndexOf(long @Readonly [] array, long target) {
     return lastIndexOf(array, target, 0, array.length);
   }
 
   // TODO(kevinb): consider making this public
-  private static @IndexOrLow("#1") @LessThan("#4") int lastIndexOf(long[] array, long target, @IndexOrHigh("#1") int start, @IndexOrHigh("#1") int end) {
+  private static @IndexOrLow("#1") @LessThan("#4") int lastIndexOf(long @Readonly [] array, long target, @IndexOrHigh("#1") int start, @IndexOrHigh("#1") int end) {
     for (int i = end - 1; i >= start; i--) {
       if (array[i] == target) {
         return i;
@@ -212,7 +218,7 @@ public static boolean contains(long[] array, long target) {
    *     the array
    * @throws IllegalArgumentException if {@code array} is empty
    */
-  public static long min(long @MinLen(1)... array) {
+  public static long min(long @MinLen(1) @Readonly... array) {
     checkArgument(array.length > 0);
     long min = array[0];
     for (int i = 1; i < array.length; i++) {
@@ -231,7 +237,7 @@ public static long min(long @MinLen(1)... array) {
    *     in the array
    * @throws IllegalArgumentException if {@code array} is empty
    */
-  public static long max(long @MinLen(1)... array) {
+  public static long max(long @MinLen(1) @Readonly ... array) {
     checkArgument(array.length > 0);
     long max = array[0];
     for (int i = 1; i < array.length; i++) {
@@ -275,7 +281,7 @@ public static long constrainToRange(long value, long min, long max) {
    * range of length array.length in result.
    */
   @SuppressWarnings("upperbound:argument") // sum of lengths
-  public static long[] concat(long[]... arrays) {
+  public static long[] concat(long @Readonly []... arrays) {
     int length = 0;
     for (long[] array : arrays) {
       length += array.length;
@@ -321,7 +327,7 @@ public static byte[] toByteArray(long value) {
    *
    * @throws IllegalArgumentException if {@code bytes} has fewer than 8 elements
    */
-  public static long fromByteArray(byte @MinLen(Longs.BYTES)[] bytes) {
+  public static long fromByteArray(byte @MinLen(Longs.BYTES) @Readonly [] bytes) {
     checkArgument(bytes.length >= BYTES, "array too small: %s < %s", bytes.length, BYTES);
     return fromBytes(
         bytes[0], bytes[1], bytes[2], bytes[3], bytes[4], bytes[5], bytes[6], bytes[7]);
@@ -515,7 +521,7 @@ public static Converter<String, Long> stringConverter() {
    * @return an array containing the values of {@code array}, with guaranteed minimum length {@code
    *     minLength}
    */
-  public static long[] ensureCapacity(long[] array, @NonNegative int minLength, @NonNegative int padding) {
+  public static long[] ensureCapacity(long @Readonly [] array, @NonNegative int minLength, @NonNegative int padding) {
     checkArgument(minLength >= 0, "Invalid minLength: %s", minLength);
     checkArgument(padding >= 0, "Invalid padding: %s", padding);
     return (array.length < minLength) ? Arrays.copyOf(array, minLength + padding) : array;
@@ -557,15 +563,15 @@ public static String join(String separator, long... array) {
    *
    * @since 2.0
    */
-  public static Comparator<long[]> lexicographicalComparator() {
+  public static @Immutable Comparator<long[]> lexicographicalComparator() {
     return LexicographicalComparator.INSTANCE;
   }
 
-  private enum LexicographicalComparator implements Comparator<long[]> {
+  private enum LexicographicalComparator implements Comparator<long @Readonly []> {
     INSTANCE;
 
     @Override
-    public int compare(long[] left, long[] right) {
+    public int compare(long @Readonly [] left, long @Readonly [] right) {
       int minLength = Math.min(left.length, right.length);
       for (int i = 0; i < minLength; i++) {
         int result = Longs.compare(left[i], right[i]);
@@ -689,6 +695,7 @@ public static List<Long> asList(long... backingArray) {
   @CFComment({"signedness: A non-generic container class permits only signed values.",
               "Clients must suppress warnings when storing unsigned values."})
   @GwtCompatible
+  @ReceiverDependentMutable
   private static class LongArrayAsList extends AbstractList<Long>
       implements RandomAccess, Serializable {
     @HasSubsequence(subsequence="this", from="this.start", to="this.end")
@@ -696,7 +703,7 @@ private static class LongArrayAsList extends AbstractList<Long>
     final @IndexFor("array") @LessThan("this.end") int start;
     final @IndexOrHigh("array") int end;
 
-    LongArrayAsList(long @MinLen(1)[] array) {
+    LongArrayAsList(long @MinLen(1) @ReceiverDependentMutable [] array) {
       this(array, 0, array.length);
     }
 
@@ -705,43 +712,43 @@ private static class LongArrayAsList extends AbstractList<Long>
     // leads to the first two issuing errors - since each field is dependent on
     // at least one of the others
     )
-    LongArrayAsList(long @MinLen(1)[] array, @IndexFor("#1") @LessThan("#3") int start, @IndexOrHigh("#1") int end) {
+    LongArrayAsList(long @MinLen(1) @ReceiverDependentMutable [] array, @IndexFor("#1") @LessThan("#3") int start, @IndexOrHigh("#1") int end) {
       this.array = array;
       this.start = start;
       this.end = end;
     }
 
     @Override
-    public @Positive @LTLengthOf(value = {"this","array"}, offset={"-1","start - 1"}) int size() { // INDEX: Annotation on a public method refers to private member.
+    public @Positive @LTLengthOf(value = {"this","array"}, offset={"-1","start - 1"}) int size(@Readonly LongArrayAsList this) { // INDEX: Annotation on a public method refers to private member.
         return end - start;
     }
 
     @Override
-    public boolean isEmpty() {
+    public boolean isEmpty(@Readonly LongArrayAsList this) {
       return false;
     }
 
     @Override
-    public Long get(@IndexFor("this") int index) {
+    public Long get(@Readonly LongArrayAsList this, @IndexFor("this") int index) {
       checkElementIndex(index, size());
       return array[start + index];
     }
 
     @Override
-    public Spliterator.OfLong spliterator() {
+    public Spliterator.OfLong spliterator(@Readonly LongArrayAsList this) {
       return Spliterators.spliterator(array, start, end, 0);
     }
 
     @Override
     @SuppressWarnings("signedness:cast.unsafe") // non-generic container class
-    public boolean contains(@CheckForNull @UnknownSignedness Object target) {
+    public boolean contains(@Readonly LongArrayAsList this, @CheckForNull @UnknownSignedness @Readonly Object target) {
       // Overridden to prevent a ton of boxing
       return (target instanceof Long) && Longs.indexOf(array, (@Signed Long) target, start, end) != -1;
     }
 
     @Override
     @SuppressWarnings("signedness:cast.unsafe") // non-generic container class
-    public @IndexOrLow("this") int indexOf(@CheckForNull @UnknownSignedness Object target) {
+    public @IndexOrLow("this") int indexOf(@Readonly LongArrayAsList this, @CheckForNull @UnknownSignedness @Readonly Object target) {
       // Overridden to prevent a ton of boxing
       if (target instanceof Long) {
         int i = Longs.indexOf(array, (@Signed Long) target, start, end);
@@ -754,7 +761,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object target) {
 
     @Override
     @SuppressWarnings("signedness:cast.unsafe") // non-generic container class
-    public @IndexOrLow("this") int lastIndexOf(@CheckForNull @UnknownSignedness Object target) {
+    public @IndexOrLow("this") int lastIndexOf(@Readonly LongArrayAsList this, @CheckForNull @UnknownSignedness @Readonly Object target) {
       // Overridden to prevent a ton of boxing
       if (target instanceof Long) {
         int i = Longs.lastIndexOf(array, (@Signed Long) target, start, end);
@@ -766,7 +773,7 @@ public boolean contains(@CheckForNull @UnknownSignedness Object target) {
     }
 
     @Override
-    public Long set(@IndexFor("this") int index, Long element) {
+    public Long set(@Mutable LongArrayAsList this, @IndexFor("this") int index, Long element) {
       checkElementIndex(index, size());
       long oldValue = array[start + index];
       // checkNotNull for GWT (do not optimize)
@@ -776,7 +783,7 @@ public Long set(@IndexFor("this") int index, Long element) {
 
     @Override
     @SuppressWarnings("index") // needs https://github.com/kelloggm/checker-framework/issues/229
-    public List<Long> subList(@IndexOrHigh("this") int fromIndex, @IndexOrHigh("this") int toIndex) {
+    public @PolyMutable List<Long> subList(@PolyMutable LongArrayAsList this, @IndexOrHigh("this") int fromIndex, @IndexOrHigh("this") int toIndex) {
       int size = size();
       checkPositionIndexes(fromIndex, toIndex, size);
       if (fromIndex == toIndex) {
@@ -786,7 +793,7 @@ public List<Long> subList(@IndexOrHigh("this") int fromIndex, @IndexOrHigh("this
     }
 
     @Override
-    public boolean equals(@CheckForNull @UnknownSignedness Object object) {
+    public boolean equals(@Readonly LongArrayAsList this, @CheckForNull @UnknownSignedness @Readonly Object object) {
       if (object == this) {
         return true;
       }
@@ -807,7 +814,7 @@ public boolean equals(@CheckForNull @UnknownSignedness Object object) {
     }
 
     @Override
-    public int hashCode(@UnknownSignedness LongArrayAsList this) {
+    public int hashCode(@UnknownSignedness @Readonly LongArrayAsList this) {
       int result = 1;
       for (int i = start; i < end; i++) {
         result = 31 * result + Longs.hashCode(array[i]);
@@ -816,7 +823,7 @@ public int hashCode(@UnknownSignedness LongArrayAsList this) {
     }
 
     @Override
-    public String toString() {
+    public String toString(@Readonly LongArrayAsList this) {
       StringBuilder builder = new StringBuilder(size() * 10);
       builder.append('[').append(array[start]);
       for (int i = start + 1; i < end; i++) {
diff --git a/guava/src/com/google/common/primitives/Shorts.java b/guava/src/com/google/common/primitives/Shorts.java
index 9370fcebeec6..4c375ca5463c 100644
--- a/guava/src/com/google/common/primitives/Shorts.java
+++ b/guava/src/com/google/common/primitives/Shorts.java
@@ -63,6 +63,7 @@
 @AnnotatedFor({"signedness"})
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Shorts extends ShortsMethodsForWeb {
   private Shorts() {}
 
diff --git a/guava/src/com/google/common/primitives/SignedBytes.java b/guava/src/com/google/common/primitives/SignedBytes.java
index d24217444e24..451ab48502ec 100644
--- a/guava/src/com/google/common/primitives/SignedBytes.java
+++ b/guava/src/com/google/common/primitives/SignedBytes.java
@@ -40,6 +40,7 @@
 // javadoc?
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class SignedBytes {
   private SignedBytes() {}
 
diff --git a/guava/src/com/google/common/primitives/UnsignedBytes.java b/guava/src/com/google/common/primitives/UnsignedBytes.java
index 0db9995e4856..e630b9ac6dd8 100644
--- a/guava/src/com/google/common/primitives/UnsignedBytes.java
+++ b/guava/src/com/google/common/primitives/UnsignedBytes.java
@@ -56,6 +56,7 @@
 @AnnotatedFor({"signedness"})
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class UnsignedBytes {
   private UnsignedBytes() {}
 
diff --git a/guava/src/com/google/common/primitives/UnsignedLong.java b/guava/src/com/google/common/primitives/UnsignedLong.java
index edcc662c564d..ba7f7ffb161d 100644
--- a/guava/src/com/google/common/primitives/UnsignedLong.java
+++ b/guava/src/com/google/common/primitives/UnsignedLong.java
@@ -48,6 +48,7 @@
 @AnnotatedFor({"signedness"})
 @GwtCompatible(serializable = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class UnsignedLong extends Number implements Comparable<UnsignedLong>, Serializable {
 
   private static final long UNSIGNED_MASK = 0x7fffffffffffffffL;
diff --git a/guava/src/com/google/common/primitives/UnsignedLongs.java b/guava/src/com/google/common/primitives/UnsignedLongs.java
index 296567390189..0dfd77c4a6c6 100644
--- a/guava/src/com/google/common/primitives/UnsignedLongs.java
+++ b/guava/src/com/google/common/primitives/UnsignedLongs.java
@@ -59,6 +59,7 @@
 @Beta
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class UnsignedLongs {
   private UnsignedLongs() {}
 
diff --git a/guava/src/com/google/common/reflect/AbstractInvocationHandler.java b/guava/src/com/google/common/reflect/AbstractInvocationHandler.java
index c79aa90970ff..02cf781deebc 100644
--- a/guava/src/com/google/common/reflect/AbstractInvocationHandler.java
+++ b/guava/src/com/google/common/reflect/AbstractInvocationHandler.java
@@ -20,6 +20,7 @@
 import java.util.Arrays;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -40,6 +41,7 @@
  * @since 12.0
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class AbstractInvocationHandler implements InvocationHandler {
 
   private static final Object[] NO_ARGS = {};
@@ -61,7 +63,7 @@ public abstract class AbstractInvocationHandler implements InvocationHandler {
    */
   @Override
   @CheckForNull
-  public final Object invoke(Object proxy, Method method, @CheckForNull @Nullable Object[] args)
+  public final @Readonly Object invoke(Object proxy, Method method, @CheckForNull @Nullable @Readonly Object[] args)
       throws Throwable {
     if (args == null) {
       args = NO_ARGS;
diff --git a/guava/src/com/google/common/reflect/ClassPath.java b/guava/src/com/google/common/reflect/ClassPath.java
index 20333d39fef9..0172f0232cf6 100644
--- a/guava/src/com/google/common/reflect/ClassPath.java
+++ b/guava/src/com/google/common/reflect/ClassPath.java
@@ -92,6 +92,7 @@
  * @since 14.0
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class ClassPath {
   private static final Logger logger = Logger.getLogger(ClassPath.class.getName());
 
diff --git a/guava/src/com/google/common/reflect/ImmutableTypeToInstanceMap.java b/guava/src/com/google/common/reflect/ImmutableTypeToInstanceMap.java
index 6273704a1072..9eac8971d1e7 100644
--- a/guava/src/com/google/common/reflect/ImmutableTypeToInstanceMap.java
+++ b/guava/src/com/google/common/reflect/ImmutableTypeToInstanceMap.java
@@ -29,6 +29,7 @@
  * @since 13.0
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class ImmutableTypeToInstanceMap<B> extends ForwardingMap<TypeToken<? extends B>, B>
     implements TypeToInstanceMap<B> {
 
diff --git a/guava/src/com/google/common/reflect/Invokable.java b/guava/src/com/google/common/reflect/Invokable.java
index f0df59fb2255..7516bef61edd 100644
--- a/guava/src/com/google/common/reflect/Invokable.java
+++ b/guava/src/com/google/common/reflect/Invokable.java
@@ -66,6 +66,7 @@
  */
 @Beta
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public abstract class Invokable<T, R> implements AnnotatedElement, Member {
   private final AccessibleObject accessibleObject;
   private final Member member;
diff --git a/guava/src/com/google/common/reflect/MutableTypeToInstanceMap.java b/guava/src/com/google/common/reflect/MutableTypeToInstanceMap.java
index 49fc55419f8d..50516a87527d 100644
--- a/guava/src/com/google/common/reflect/MutableTypeToInstanceMap.java
+++ b/guava/src/com/google/common/reflect/MutableTypeToInstanceMap.java
@@ -30,8 +30,11 @@
 import org.checkerframework.checker.nullness.qual.KeyFor;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.checkerframework.checker.nullness.qual.PolyNull;
+import org.checkerframework.checker.pico.qual.Immutable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.PolySigned;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
+import org.checkerframework.framework.qual.AnnotatedFor;
 
 /**
  * A mutable type-to-instance map. See also {@link ImmutableTypeToInstanceMap}.
@@ -43,6 +46,7 @@
  * @since 13.0
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class MutableTypeToInstanceMap<B> extends ForwardingMap<TypeToken<? extends B>, B>
     implements TypeToInstanceMap<B> {
 
@@ -124,11 +128,12 @@ private <T extends B> T trustedGet(TypeToken<T> type) {
     return (T) backingMap.get(type);
   }
 
-  private static final class UnmodifiableEntry<K, V> extends ForwardingMapEntry<K, V> {
+  @Immutable
+  private static final class UnmodifiableEntry<K extends @Immutable Object, V> extends ForwardingMapEntry<K, V> {
 
     private final Entry<K, V> delegate;
 
-    static <K, V> Set<Entry<K, V>> transformEntries(Set<Entry<K, V>> entries) {
+    static <K extends @Immutable Object, V> Set<Entry<K, V>> transformEntries(Set<Entry<K, V>> entries) {
       return new ForwardingSet<Map.Entry<K, V>>() {
         @Override
         protected Set<Entry<K, V>> delegate() {
@@ -155,13 +160,13 @@ public Iterator<Entry<K, V>> iterator() {
 
         @Override
         @SuppressWarnings("nullness") // b/192354773 in our checker affects toArray declarations
-        public <T extends @Nullable @UnknownSignedness Object> T[] toArray(T[] array) {
+        public <T extends @Nullable @UnknownSignedness @Readonly Object> T[] toArray(T[] array) {
           return standardToArray(array);
         }
       };
     }
 
-    private static <K, V> Iterator<Entry<K, V>> transformEntries(Iterator<Entry<K, V>> entries) {
+    private static <K extends @Immutable Object, V> Iterator<Entry<K, V>> transformEntries(Iterator<Entry<K, V>> entries) {
       return Iterators.transform(entries, UnmodifiableEntry::new);
     }
 
diff --git a/guava/src/com/google/common/reflect/Parameter.java b/guava/src/com/google/common/reflect/Parameter.java
index 6b796f0d36fe..10dd0bc076fb 100644
--- a/guava/src/com/google/common/reflect/Parameter.java
+++ b/guava/src/com/google/common/reflect/Parameter.java
@@ -38,6 +38,7 @@
  */
 @Beta
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Parameter implements AnnotatedElement {
 
   private final Invokable<?, ?> declaration;
diff --git a/guava/src/com/google/common/reflect/TypeResolver.java b/guava/src/com/google/common/reflect/TypeResolver.java
index 063e7fd6f44c..f8a66a6b87b3 100644
--- a/guava/src/com/google/common/reflect/TypeResolver.java
+++ b/guava/src/com/google/common/reflect/TypeResolver.java
@@ -52,6 +52,7 @@
  * @since 15.0
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class TypeResolver {
 
   private final TypeTable typeTable;
diff --git a/guava/src/com/google/common/reflect/TypeToken.java b/guava/src/com/google/common/reflect/TypeToken.java
index 0f93c7972798..a02b9725b18a 100644
--- a/guava/src/com/google/common/reflect/TypeToken.java
+++ b/guava/src/com/google/common/reflect/TypeToken.java
@@ -98,7 +98,7 @@
  * @author Ben Yu
  * @since 12.0
  */
-@SuppressWarnings("serial") // SimpleTypeToken is the serialized form.
+@SuppressWarnings({"serial", "pico"}) // SimpleTypeToken is the serialized form.
 @ElementTypesAreNonnullByDefault
 public abstract class TypeToken<T> extends TypeCapture<T> implements Serializable {
 
diff --git a/guava/src/com/google/common/reflect/Types.java b/guava/src/com/google/common/reflect/Types.java
index 3f271994ef49..1b701fc2bedc 100644
--- a/guava/src/com/google/common/reflect/Types.java
+++ b/guava/src/com/google/common/reflect/Types.java
@@ -46,6 +46,7 @@
 import java.util.concurrent.atomic.AtomicReference;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 import org.checkerframework.common.value.qual.MinLen;
 
@@ -55,6 +56,7 @@
  * @author Ben Yu
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class Types {
 
   /** Class#toString without the "class " and "interface " prefixes */
@@ -520,7 +522,7 @@ public String toString() {
     private static final long serialVersionUID = 0;
   }
 
-  private static Type[] toArray(Collection<Type> types) {
+  private static Type[] toArray(@Readonly Collection<Type> types) {
     return types.toArray(new Type[0]);
   }
 
diff --git a/guava/src/com/google/common/util/concurrent/AbstractFuture.java b/guava/src/com/google/common/util/concurrent/AbstractFuture.java
index fc408a92d24a..7a8ddd8b1b04 100644
--- a/guava/src/com/google/common/util/concurrent/AbstractFuture.java
+++ b/guava/src/com/google/common/util/concurrent/AbstractFuture.java
@@ -70,6 +70,7 @@
 @SuppressWarnings({
   "ShortCircuitBoolean", // we use non-short circuiting comparisons intentionally
   "nullness", // TODO(b/147136275): Remove once our checker understands & and |.
+        "pico"
 })
 @GwtCompatible(emulated = true)
 @ReflectionSupport(value = ReflectionSupport.Level.FULL)
@@ -666,7 +667,7 @@ mayInterruptIfRunning, new CancellationException("Future.cancel() was called."))
           if (localValue instanceof SetFuture) {
             // propagate cancellation to the future set in setfuture, this is racy, and we don't
             // care if we are successful or not.
-            ListenableFuture<?> futureToPropagateTo = ((SetFuture) localValue).future;
+            ListenableFuture<?> futureToPropagateTo = ((SetFuture<?>) localValue).future;
             if (futureToPropagateTo instanceof Trusted) {
               // If the future is a TrustedFuture then we specifically avoid calling cancel()
               // this has 2 benefits
diff --git a/guava/src/com/google/common/util/concurrent/AtomicLongMap.java b/guava/src/com/google/common/util/concurrent/AtomicLongMap.java
index 3774e744fca8..bb82b9331538 100644
--- a/guava/src/com/google/common/util/concurrent/AtomicLongMap.java
+++ b/guava/src/com/google/common/util/concurrent/AtomicLongMap.java
@@ -30,6 +30,7 @@
 import java.util.function.LongBinaryOperator;
 import java.util.function.LongUnaryOperator;
 import javax.annotation.CheckForNull;
+import org.checkerframework.checker.pico.qual.Readonly;
 import org.checkerframework.checker.signedness.qual.UnknownSignedness;
 
 /**
@@ -57,6 +58,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class AtomicLongMap<K> implements Serializable {
   private final ConcurrentHashMap<K, Long> map;
 
@@ -277,7 +279,7 @@ private Map<K, Long> createAsMap() {
   }
 
   /** Returns true if this map contains a mapping for the specified key. */
-  public boolean containsKey(@UnknownSignedness Object key) {
+  public boolean containsKey(@UnknownSignedness @Readonly Object key) {
     return map.containsKey(key);
   }
 
diff --git a/guava/src/com/google/common/util/concurrent/ClosingFuture.java b/guava/src/com/google/common/util/concurrent/ClosingFuture.java
index fbd604ceadfe..d13444c30214 100644
--- a/guava/src/com/google/common/util/concurrent/ClosingFuture.java
+++ b/guava/src/com/google/common/util/concurrent/ClosingFuture.java
@@ -192,6 +192,7 @@
 @DoNotMock("Use ClosingFuture.from(Futures.immediate*Future)")
 @ElementTypesAreNonnullByDefault
 // TODO(dpb): GWT compatibility.
+@SuppressWarnings("pico")
 public final class ClosingFuture<V extends @Nullable Object> {
 
   private static final Logger logger = Logger.getLogger(ClosingFuture.class.getName());
diff --git a/guava/src/com/google/common/util/concurrent/CycleDetectingLockFactory.java b/guava/src/com/google/common/util/concurrent/CycleDetectingLockFactory.java
index decb5f1b183d..2b8a00426c13 100644
--- a/guava/src/com/google/common/util/concurrent/CycleDetectingLockFactory.java
+++ b/guava/src/com/google/common/util/concurrent/CycleDetectingLockFactory.java
@@ -164,6 +164,7 @@
 @CanIgnoreReturnValue // TODO(cpovirk): Consider being more strict.
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public class CycleDetectingLockFactory {
 
   /**
diff --git a/guava/src/com/google/common/util/concurrent/DirectExecutor.java b/guava/src/com/google/common/util/concurrent/DirectExecutor.java
index 0c3a46b703c3..35389b132959 100644
--- a/guava/src/com/google/common/util/concurrent/DirectExecutor.java
+++ b/guava/src/com/google/common/util/concurrent/DirectExecutor.java
@@ -23,6 +23,7 @@
  */
 @GwtCompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 enum DirectExecutor implements Executor {
   INSTANCE;
 
diff --git a/guava/src/com/google/common/util/concurrent/ExecutionSequencer.java b/guava/src/com/google/common/util/concurrent/ExecutionSequencer.java
index 80c7779342b1..9159e590aaf7 100644
--- a/guava/src/com/google/common/util/concurrent/ExecutionSequencer.java
+++ b/guava/src/com/google/common/util/concurrent/ExecutionSequencer.java
@@ -84,6 +84,7 @@
  * @since 26.0
  */
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class ExecutionSequencer {
 
   private ExecutionSequencer() {}
diff --git a/guava/src/com/google/common/util/concurrent/Futures.java b/guava/src/com/google/common/util/concurrent/Futures.java
index 09b5c3c1a426..e3056a26453d 100644
--- a/guava/src/com/google/common/util/concurrent/Futures.java
+++ b/guava/src/com/google/common/util/concurrent/Futures.java
@@ -76,6 +76,7 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class Futures extends GwtFuturesCatchingSpecialization {
 
   // A note on memory visibility.
diff --git a/guava/src/com/google/common/util/concurrent/FuturesGetChecked.java b/guava/src/com/google/common/util/concurrent/FuturesGetChecked.java
index 6f09b8066d55..8d63fb9f8276 100644
--- a/guava/src/com/google/common/util/concurrent/FuturesGetChecked.java
+++ b/guava/src/com/google/common/util/concurrent/FuturesGetChecked.java
@@ -41,6 +41,7 @@
 /** Static methods used to implement {@link Futures#getChecked(Future, Class)}. */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 final class FuturesGetChecked {
   @CanIgnoreReturnValue
   @ParametricNullness
diff --git a/guava/src/com/google/common/util/concurrent/MoreExecutors.java b/guava/src/com/google/common/util/concurrent/MoreExecutors.java
index f7f356c29183..7636759a9075 100644
--- a/guava/src/com/google/common/util/concurrent/MoreExecutors.java
+++ b/guava/src/com/google/common/util/concurrent/MoreExecutors.java
@@ -65,6 +65,7 @@
  */
 @GwtCompatible(emulated = true)
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class MoreExecutors {
   private MoreExecutors() {}
 
diff --git a/guava/src/com/google/common/util/concurrent/ServiceManager.java b/guava/src/com/google/common/util/concurrent/ServiceManager.java
index 5ab95ffa6b74..8c426114b7a5 100644
--- a/guava/src/com/google/common/util/concurrent/ServiceManager.java
+++ b/guava/src/com/google/common/util/concurrent/ServiceManager.java
@@ -122,6 +122,7 @@
  */
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class ServiceManager implements ServiceManagerBridge {
   private static final Logger logger = Logger.getLogger(ServiceManager.class.getName());
   private static final ListenerCallQueue.Event<Listener> HEALTHY_EVENT =
diff --git a/guava/src/com/google/common/util/concurrent/SimpleTimeLimiter.java b/guava/src/com/google/common/util/concurrent/SimpleTimeLimiter.java
index c6ade6a3a0a5..845a8083ddf9 100644
--- a/guava/src/com/google/common/util/concurrent/SimpleTimeLimiter.java
+++ b/guava/src/com/google/common/util/concurrent/SimpleTimeLimiter.java
@@ -36,6 +36,7 @@
 import java.util.concurrent.TimeoutException;
 import javax.annotation.CheckForNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * A TimeLimiter that runs method calls in the background using an {@link ExecutorService}. If the
@@ -48,6 +49,7 @@
 @Beta
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class SimpleTimeLimiter implements TimeLimiter {
 
   private final ExecutorService executor;
@@ -111,7 +113,7 @@ private static <T> T newProxy(Class<T> interfaceType, InvocationHandler handler)
     return interfaceType.cast(object);
   }
 
-  private <T extends @Nullable Object> T callWithTimeout(
+  private <T extends @Nullable @Readonly Object> T callWithTimeout(
       Callable<T> callable, long timeoutDuration, TimeUnit timeoutUnit, boolean amInterruptible)
       throws Exception {
     checkNotNull(callable);
diff --git a/guava/src/com/google/common/util/concurrent/ThreadFactoryBuilder.java b/guava/src/com/google/common/util/concurrent/ThreadFactoryBuilder.java
index de7236369d25..ae4e47b447b3 100644
--- a/guava/src/com/google/common/util/concurrent/ThreadFactoryBuilder.java
+++ b/guava/src/com/google/common/util/concurrent/ThreadFactoryBuilder.java
@@ -51,6 +51,7 @@
 @CanIgnoreReturnValue
 @GwtIncompatible
 @ElementTypesAreNonnullByDefault
+@SuppressWarnings("pico")
 public final class ThreadFactoryBuilder {
   @CheckForNull private @Format({ConversionCategory.INT}) String nameFormat = null;
   @CheckForNull private Boolean daemon = null;
diff --git a/guava/src/com/google/common/util/concurrent/Uninterruptibles.java b/guava/src/com/google/common/util/concurrent/Uninterruptibles.java
index 09ace92fae75..1964842a6e0f 100644
--- a/guava/src/com/google/common/util/concurrent/Uninterruptibles.java
+++ b/guava/src/com/google/common/util/concurrent/Uninterruptibles.java
@@ -35,6 +35,7 @@
 import java.util.concurrent.locks.Condition;
 import java.util.concurrent.locks.Lock;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.checkerframework.checker.pico.qual.Readonly;
 
 /**
  * Utilities for treating interruptible operations as uninterruptible. In all cases, if a thread is
@@ -298,7 +299,7 @@ public static void joinUninterruptibly(Thread toJoin, long timeout, TimeUnit uni
   @GwtIncompatible // TODO
   @SuppressWarnings("GoodTime") // should accept a java.time.Duration
   @ParametricNullness
-  public static <V extends @Nullable Object> V getUninterruptibly(
+  public static <V extends @Nullable @Readonly Object> V getUninterruptibly(
       Future<V> future, long timeout, TimeUnit unit) throws ExecutionException, TimeoutException {
     boolean interrupted = false;
     try {
diff --git a/guava/src/com/google/thirdparty/publicsuffix/PublicSuffixPatterns.java b/guava/src/com/google/thirdparty/publicsuffix/PublicSuffixPatterns.java
index c987065e4647..b2d3f7326fcb 100644
--- a/guava/src/com/google/thirdparty/publicsuffix/PublicSuffixPatterns.java
+++ b/guava/src/com/google/thirdparty/publicsuffix/PublicSuffixPatterns.java
@@ -36,6 +36,7 @@
  */
 @GwtCompatible
 @Beta
+@SuppressWarnings("pico")
 public final class PublicSuffixPatterns {
   private PublicSuffixPatterns() {}
 
diff --git a/temp.log b/temp.log
new file mode 100644
index 000000000000..01a80cbcc2cf
--- /dev/null
+++ b/temp.log
@@ -0,0 +1,7591 @@
+[INFO] Scanning for projects...
+[WARNING] 
+[WARNING] Some problems were encountered while building the effective model for com.google.guava:guava:bundle:31.1-jre
+[WARNING] 'profiles.profile[checkerframework-local].dependencies.dependency.systemPath' for io.github.eisop:checker-qual:jar should use a variable instead of a hard-coded path /Users/aosenxiong/waterloo/eisop/checker-framework/checker/dist/checker-qual.jar @ line 388, column 23
+[WARNING] 'profiles.profile[checkerframework-local].dependencies.dependency.systemPath' for io.github.eisop:checker:jar should use a variable instead of a hard-coded path /Users/aosenxiong/waterloo/eisop/checker-framework/checker/dist/checker.jar @ line 395, column 23
+[WARNING] 
+[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
+[WARNING] 
+[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
+[WARNING] 
+[INFO] 
+[INFO] -----------------------< com.google.guava:guava >-----------------------
+[INFO] Building Guava: Google Core Libraries for Java 31.1-jre
+[INFO]   from pom.xml
+[INFO] -------------------------------[ bundle ]-------------------------------
+[WARNING] Ignoring incompatible plugin version 4.0.0-beta-1: The plugin org.apache.maven.plugins:maven-resources-plugin:4.0.0-beta-1 requires Maven version 4.0.0-beta-3
+[INFO] Latest version of plugin org.apache.maven.plugins:maven-resources-plugin failed compatibility check
+[INFO] Looking for compatible RELEASE version of plugin org.apache.maven.plugins:maven-resources-plugin
+[INFO] Selected plugin org.apache.maven.plugins:maven-resources-plugin:3.3.1
+[WARNING] Ignoring incompatible plugin version 4.0.0-beta-2: The plugin org.apache.maven.plugins:maven-install-plugin:4.0.0-beta-2 requires Maven version 4.0.0-rc-2
+[INFO] Latest version of plugin org.apache.maven.plugins:maven-install-plugin failed compatibility check
+[INFO] Looking for compatible RELEASE version of plugin org.apache.maven.plugins:maven-install-plugin
+[WARNING] Ignoring incompatible plugin version 4.0.0-beta-1: The plugin org.apache.maven.plugins:maven-install-plugin:4.0.0-beta-1 requires Maven version 4.0.0-beta-3
+[INFO] Selected plugin org.apache.maven.plugins:maven-install-plugin:3.1.4
+[WARNING] Ignoring incompatible plugin version 4.0.0-beta-2: The plugin org.apache.maven.plugins:maven-deploy-plugin:4.0.0-beta-2 requires Maven version 4.0.0-rc-2
+[INFO] Latest version of plugin org.apache.maven.plugins:maven-deploy-plugin failed compatibility check
+[INFO] Looking for compatible RELEASE version of plugin org.apache.maven.plugins:maven-deploy-plugin
+[WARNING] Ignoring incompatible plugin version 4.0.0-beta-1: The plugin org.apache.maven.plugins:maven-deploy-plugin:4.0.0-beta-1 requires Maven version 4.0.0-beta-3
+[INFO] Selected plugin org.apache.maven.plugins:maven-deploy-plugin:3.1.4
+[INFO] 
+[INFO] --- clean:3.2.0:clean (default-clean) @ guava ---
+[INFO] Deleting /Users/aosenxiong/waterloo/eisop/guava/guava/target
+[INFO] 
+[INFO] --- enforcer:3.0.0-M3:enforce (enforce-versions) @ guava ---
+[INFO] 
+[INFO] --- dependency:3.1.1:properties (default) @ guava ---
+[INFO] 
+[INFO] --- dependency:3.1.1:unpack-dependencies (unpack-jdk-sources) @ guava ---
+[INFO] Unpacking /Library/Java/JavaVirtualMachines/jdk-17.jdk/Contents/Home/lib/src.zip to /Users/aosenxiong/waterloo/eisop/guava/guava/target/jdk-sources with includes "" and excludes "**/module-info.java,**/java/io/FileDescriptor.java"
+[INFO] 
+[INFO] --- compiler:3.8.1:compile (value-check) @ guava ---
+[WARNING]  Parameter 'compilerArguments' is deprecated: use {@link #compilerArgs} instead.
+[INFO] Changes detected - recompiling the module!
+[INFO] Compiling 619 source files to /Users/aosenxiong/waterloo/eisop/guava/guava/target/classes
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AbstractFuture.java:[33,20] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/reflect/Types.java:[42,20] [removal] AccessControlException in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AbstractFuture.java:[33,20] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/reflect/Types.java:[42,20] [removal] AccessControlException in java.security has been deprecated and marked for removal
+[WARNING] The following options were not recognized by any processor: '[assumeInitialized]'
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AbstractFuture.java:[33,20] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/reflect/Types.java:[42,20] [removal] AccessControlException in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/hash/BloomFilter.java:[523,40] [[value, allcheckers]:cast.unsafe] cast from "@IntRangeFromPositive long" to "@IntRange(from=1, to=2147483647) double" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AbstractFuture.java:[1330,14] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/hash/Striped64.java:[303,26] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/primitives/UnsignedBytes.java:[359,30] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/cache/Striped64.java:[297,26] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/hash/LittleEndianByteArray.java:[181,28] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/reflect/Types.java:[372,19] [removal] AccessControlException in java.security has been deprecated and marked for removal
+[INFO] 
+[INFO] --- resources:3.3.1:resources (default-resources) @ guava ---
+[INFO] Copying 0 resource from src to target/classes
+[INFO] 
+[INFO] --- compiler:3.8.1:compile (default-compile) @ guava ---
+[WARNING]  Parameter 'compilerArguments' is deprecated: use {@link #compilerArgs} instead.
+[INFO] Nothing to compile - all classes are up to date
+[INFO] 
+[INFO] --- compiler:3.8.1:compile (main-compile) @ guava ---
+[WARNING]  Parameter 'compilerArguments' is deprecated: use {@link #compilerArgs} instead.
+[INFO] Changes detected - recompiling the module!
+[INFO] Compiling 619 source files to /Users/aosenxiong/waterloo/eisop/guava/guava/target/classes
+[INFO] -------------------------------------------------------------
+[WARNING] COMPILATION WARNING : 
+[INFO] -------------------------------------------------------------
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AbstractFuture.java:[33,20] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/reflect/Types.java:[42,20] [removal] AccessControlException in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AbstractFuture.java:[33,20] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/reflect/Types.java:[42,20] [removal] AccessControlException in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AbstractFuture.java:[33,20] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/reflect/Types.java:[42,20] [removal] AccessControlException in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[345,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularImmutableMap.fromEntries.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[557,19] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableMap.of
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object <: use of V from of(onlyEntry.getKey(), onlyEntry.getValue())
+  From complementary bound.: V extends @Readonly Object -> use of V from of(onlyEntry.getKey(), onlyEntry.getValue())
+  onlyEntry.getValue() -> use of V from of(onlyEntry.getKey(), onlyEntry.getValue())
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[569,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[574,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[650,19] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableMap.of
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object <: use of V from of(onlyEntry.getKey(), onlyEntry.getValue())
+  From complementary bound.: V extends @Readonly Object -> use of V from of(onlyEntry.getKey(), onlyEntry.getValue())
+  onlyEntry.getValue() -> use of V from of(onlyEntry.getKey(), onlyEntry.getValue())
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[703,17] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableMap.copyOf
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  capture#03 extends V extends @Readonly Object <: use of V from copyOf(map.entrySet())
+  From complementary bound.: capture#03 extends V extends @Readonly Object <= inference type: ? extends V
+  @Mutable Entry<capture#04 extends K extends @Immutable Object, capture#03 extends V extends @Readonly Object> <: inference type: java.util.Map.Entry<? extends K,? extends V>
+  @Mutable Entry<capture#04 extends K extends @Immutable Object, capture#03 extends V extends @Readonly Object> <= inference type: ? extends java.util.Map.Entry<? extends K,? extends V>
+  @Mutable Set<@Mutable Entry<capture#04 extends K extends @Immutable Object, capture#03 extends V extends @Readonly Object>> <: inference type: java.lang.Iterable<? extends java.util.Map.Entry<? extends K,? extends V>>
+  @Mutable Set<@Mutable Entry<capture#04 extends K extends @Immutable Object, capture#03 extends V extends @Readonly Object>> -> inference type: java.lang.Iterable<? extends java.util.Map.Entry<? extends K,? extends V>>
+  map.entrySet() -> inference type: java.lang.Iterable<? extends java.util.Map.Entry<? extends K,? extends V>>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[731,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularImmutableMap.fromEntries.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[741,39] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableEnumMap.asImmutable
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object = use of V from ImmutableEnumMap.asImmutable(copy)
+  From complementary bound.: V extends @Readonly Object <= use of V from ImmutableEnumMap.asImmutable(copy)
+  @Mutable EnumMap<K extends @Immutable Enum<K extends @Immutable Enum<K>>, V extends @Readonly Object> <: inference type: java.util.EnumMap<K,V>
+  @Mutable EnumMap<K extends @Immutable Enum<K extends @Immutable Enum<K>>, V extends @Readonly Object> -> inference type: java.util.EnumMap<K,V>
+  copy -> inference type: java.util.EnumMap<K,V>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[752,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter iterator of Spliterators.spliterator.
+  found   : @Immutable UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Iterator<? extends @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1069,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable ImmutableMap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly <anonymous com.google.common.collect.ImmutableMap$1> <init>(@Immutable ImmutableMap<K extends @Immutable Object, V extends @Readonly Object> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1069,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<K extends @Immutable Object>
+  method return type: @Immutable UnmodifiableIterator<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1077,33] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Iterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1119,51] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable ImmutableSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Readonly ImmutableSetMultimap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1121,8] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSetMultimap<K extends @Immutable Object, @org.checkerframework.checker.pico.qual.Immutable V extends @Readonly Object>
+  method return type: @Immutable ImmutableSetMultimap<K extends @Immutable Object, @org.checkerframework.checker.pico.qual.Immutable V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1121,24] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ImmutableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1122,12] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableSetMultimap constructor
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  use of V from new ImmutableSetMultimap<>(new MapViewOfValuesAsSingletonSets(), size(), null) = V extends @Readonly Object
+  From complementary bound.: @Immutable ImmutableSet<V extends @Readonly Object> = inference type: com.google.common.collect.ImmutableSet<V>
+  @Immutable ImmutableSet<V extends @Readonly Object> <= inference type: com.google.common.collect.ImmutableSet<V>
+  @Immutable ImmutableMap<K extends @Immutable Object, V extends @Readonly Object>.@Immutable MapViewOfValuesAsSingletonSets <: inference type: com.google.common.collect.ImmutableMap<K,com.google.common.collect.ImmutableSet<V>>
+  @Immutable ImmutableMap<K extends @Immutable Object, V extends @Readonly Object>.@Immutable MapViewOfValuesAsSingletonSets -> inference type: com.google.common.collect.ImmutableMap<K,com.google.common.collect.ImmutableSet<V>>
+  new MapViewOfValuesAsSingletonSets() -> inference type: com.google.common.collect.ImmutableMap<K,com.google.common.collect.ImmutableSet<V>>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1172,13] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable ImmutableMap<K extends @Immutable Object, V extends @Readonly Object>.@Immutable MapViewOfValuesAsSingletonSets.@Readonly <anonymous com.google.common.collect.ImmutableMap$MapViewOfValuesAsSingletonSets$1> <init>(@Immutable ImmutableMap<K extends @Immutable Object, V extends @Readonly Object>.@Immutable MapViewOfValuesAsSingletonSets this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1172,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, @Immutable ImmutableSet<V extends @Readonly Object>>>
+  method return type: @Immutable UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, @Immutable ImmutableSet<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1180,63] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable Iterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Iterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1243,85] [[immutability, pico, piconoinit, allcheckers]:enhancedfor.type.incompatible] incompatible types in enhanced for loop.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Readonly Entry<? extends @Mutable Object, ? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1245,36] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : capture#05 extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1252,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable ImmutableSet<K extends @Immutable Object>
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1253,30] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable ImmutableCollection<V extends @Readonly Object>
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1271,32] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable UnmodifiableIterator<K extends @Immutable Object>
+  required: @Mutable Iterator<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMap.java:[1271,50] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable UnmodifiableIterator<V extends @Readonly Object>
+  required: @Mutable Iterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapEntrySet.java:[48,58] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularEntrySet constructor.
+  found   : @Immutable ImmutableList<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Immutable ImmutableList<@Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapEntrySet.java:[69,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Immutable UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapEntrySet.java:[74,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<@Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapEntrySet.java:[79,22] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter consumer of ImmutableList.forEach.
+  found   : @Mutable Consumer<capture#06 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Consumer<? extends @Readonly Object super @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapEntrySet.java:[84,13] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for RegularImmutableAsList constructor
+  unsatisfiable constraint: @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: use of E from new RegularImmutableAsList<>(this, entries)
+  From complementary bound.: @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> <= inference type: ? extends E
+  @Immutable ImmutableList<@Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>> <: inference type: com.google.common.collect.ImmutableList<? extends E>
+  @Immutable ImmutableList<@Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>> -> inference type: com.google.common.collect.ImmutableList<? extends E>
+  entries -> inference type: com.google.common.collect.ImmutableList<? extends E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapEntrySet.java:[100,26] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#07 [ extends @Immutable Object super @PICOBottom NullType ], capture#08 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[248,37] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly Object @Mutable []
+  required: @Mutable Object @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[314,54] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of ImmutableEnumSet.asImmutable.
+  found   : @Mutable EnumSet</*RAW*/>
+  required: @Immutable EnumSet</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[314,54] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for EnumSet.copyOf
+  unsatisfiable constraint: @Mutable EnumSet</*RAW*/> -> @Immutable EnumSet</*RAW*/>
+  From: Constraint between method call type and target type for method call (unchecked conversion): EnumSet.copyOf(enumSet)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[401,13] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable Indexed<E extends @Readonly Object>.@Readonly <anonymous com.google.common.collect.ImmutableSet$Indexed$1> <init>(@Immutable Indexed<E extends @Readonly Object> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[401,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly ImmutableList<E extends @Readonly Object>
+  method return type: @Immutable ImmutableList<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[430,19] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSet<@Mutable Object>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[430,19] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableSet.copyOf
+  unsatisfiable constraint: inference type: com.google.common.collect.ImmutableSet<E> <: @Mutable Object
+  inference type: com.google.common.collect.ImmutableSet<E> -> @Mutable Object
+  From: Constraint between method call type and target type for method call:copyOf(elements)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[807,54] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of RegularSetBuilderImpl.rebuildHashTable.
+  found   : E extends @Readonly Object @Mutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[811,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter hashTable of RegularSetBuilderImpl.hashFloodingDetected.
+  found   : @Readonly Object @Mutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[836,14] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of RegularImmutableSet constructor.
+  found   : @Readonly Object @Mutable []
+  required: @Mutable Object @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[836,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter table of RegularImmutableSet constructor.
+  found   : @Readonly Object @Mutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[836,48] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @Readonly Object @Mutable [] <: @Mutable Object @Mutable []
+  use of T from requireNonNull(hashTable) <: @Mutable Object @Mutable []
+  From complementary bound.: use of T from requireNonNull(hashTable) -> @Mutable Object @Mutable []
+  From: Constraint between method call type and target type for method call:requireNonNull(hashTable)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[866,51] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of RegularSetBuilderImpl.rebuildHashTable.
+  found   : E extends @Readonly Object @Mutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[958,48] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Sets.newHashSetWithExpectedSize
+  unsatisfiable constraint: @Readonly Object <: @Immutable Object
+  use of E from Sets.newHashSetWithExpectedSize(distinct) = @Readonly Object
+  From complementary bound.: use of E from Sets.newHashSetWithExpectedSize(distinct) <= @Readonly Object
+  inference type: java.util.HashSet<E> <: @Mutable Set<@Readonly Object>
+  inference type: java.util.HashSet<E> -> @Mutable Set<@Readonly Object>
+  From: Constraint between method call type and target type for method call:Sets.newHashSetWithExpectedSize(distinct)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSet.java:[995,14] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of JdkBackedImmutableSet constructor.
+  found   : @Mutable Set<@Readonly Object>
+  required: @Immutable Set<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableCollection.java:[377,47] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable UnmodifiableIterator<E extends @Readonly Object>
+  required: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableList.java:[316,39] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clone() not allowed on the given receiver.
+  found   : E extends @Readonly Object @Readonly []
+  required: @Mutable Array
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableList.java:[406,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of RegularImmutableList constructor.
+  found   : @Readonly Object @Readonly []
+  required: @Mutable Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableList.java:[735,19] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableList<@Mutable Object>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableList.java:[735,19] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableList.copyOf
+  unsatisfiable constraint: inference type: com.google.common.collect.ImmutableList<E> <: @Mutable Object
+  inference type: com.google.common.collect.ImmutableList<E> -> @Mutable Object
+  From: Constraint between method call type and target type for method call:copyOf(elements)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableList.java:[852,10] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of Builder.add.
+  found   : E extends @Readonly Object @Mutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableList.java:[911,17] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of Builder.add.
+  found   : @Readonly Object @Mutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractIndexedListIterator.java:[45,36] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.extends.clause] Class with annotation @ReceiverDependentMutable cannot extend @Immutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractIndexedListIterator.java:[74,64] [[immutability, pico, piconoinit, allcheckers]:super.invocation.invalid] Constructor of type @ReceiverDependentMutable cannot call super() of type @Immutable.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapEntry.java:[65,25] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#09 [ extends @Immutable Object super @PICOBottom NullType ], capture#010 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSetMultimap.java:[364,28] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter mapEntries of ImmutableSetMultimap.fromMapEntries.
+  found   : @Readonly Collection<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Immutable Object>>>
+  required: @Mutable Collection<? extends @Mutable Entry<? extends K extends @Immutable Object, ? extends @Mutable Collection<? extends V extends @Immutable Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSetMultimap.java:[561,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@Immutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+  method return type: @Immutable UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSetMultimap.java:[598,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Serialization.writeMultimap.
+  found   : @Immutable ImmutableSetMultimap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSetMultimap.java:[642,18] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of Builder.put.
+  found   : @Mutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[270,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter values of Builder.putAll.
+  found   : @Readonly Collection<capture#011 extends V extends @Immutable Object>
+  required: @Mutable Iterable<? extends V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[311,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter mapEntries of ImmutableListMultimap.fromMapEntries.
+  found   : @Readonly Collection<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Immutable Object>>>
+  required: @Mutable Collection<? extends @Mutable Entry<? extends K extends @Immutable Object, ? extends @Mutable Collection<? extends V extends @Immutable Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[592,28] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Immutable Entry<capture#012 [ extends @Immutable Object super @PICOBottom NullType ], capture#013 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[603,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable ImmutableMultimap<K extends @Immutable Object, V extends @Immutable Object>.@Readonly <anonymous com.google.common.collect.ImmutableMultimap$1> <init>(@Immutable ImmutableMultimap<K extends @Immutable Object, V extends @Immutable Object> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[603,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<@Immutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+  method return type: @Immutable UnmodifiableIterator<@Immutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[605,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, capture#014 extends @Immutable ImmutableCollection<V extends @Immutable Object>>>
+  required: @Mutable Iterator<? extends @Immutable Entry<K extends @Immutable Object, ? extends @Immutable ImmutableCollection<V extends @Immutable Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[607,52] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable UnmodifiableIterator<V extends @Immutable Object>
+  required: @Mutable Iterator<V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[619,46] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable UnmodifiableIterator<V extends @Immutable Object>
+  required: @Mutable Iterator<V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[694,79] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Entry<K extends @Immutable Object, capture#015 extends @Immutable ImmutableCollection<V extends @Immutable Object>>
+  required: @Readonly Entry<K extends @Immutable Object, ? extends @Mutable Collection<V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[740,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable ImmutableMultimap<K extends @Immutable Object, V extends @Immutable Object>.@Readonly <anonymous com.google.common.collect.ImmutableMultimap$2> <init>(@Immutable ImmutableMultimap<K extends @Immutable Object, V extends @Immutable Object> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[740,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<V extends @Immutable Object>
+  method return type: @Immutable UnmodifiableIterator<V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[741,91] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable UnmodifiableIterator<capture#016 extends @Immutable ImmutableCollection<V extends @Immutable Object>>
+  required: @Mutable Iterator<? extends @Immutable ImmutableCollection<V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[742,52] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable UnmodifiableIterator<V extends @Immutable Object>
+  required: @Mutable Iterator<V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultimap.java:[752,55] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable UnmodifiableIterator<V extends @Immutable Object>
+  required: @Mutable Iterator<V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[236,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Supplier<capture#017 extends @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[236,33] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Supplier<capture#017 extends @ReceiverDependentMutable Collection<V extends @Readonly Object>> <: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  use of T from checkNotNull(factory) <: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  From complementary bound.: use of T from checkNotNull(factory) -> @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:checkNotNull(factory)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[246,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  method return type: @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[258,45] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable NavigableSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[260,49] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[262,43] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable Set<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[264,44] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable List<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[300,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CustomMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[300,16] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Supplier<capture#021 extends @Mutable Collection<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[302,12] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setMap(java.util.Map<K,java.util.Collection<V>>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable CustomMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[352,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Supplier<capture#018 extends @ReceiverDependentMutable List<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable List<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[352,33] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Supplier<capture#018 extends @ReceiverDependentMutable List<V extends @Readonly Object>> <: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable List<V extends @Readonly Object>>
+  use of T from checkNotNull(factory) <: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable List<V extends @Readonly Object>>
+  From complementary bound.: use of T from checkNotNull(factory) -> @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable List<V extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:checkNotNull(factory)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[362,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  method return type: @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[367,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: capture#022 extends @PolyMutable List<V extends @Readonly Object>
+  method return type: @ReceiverDependentMutable List<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[382,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CustomListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[382,16] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Supplier<capture#023 extends @Mutable List<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable List<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[384,12] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setMap(java.util.Map<K,java.util.Collection<V>>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable CustomListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[433,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Supplier<capture#019 extends @ReceiverDependentMutable Set<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable Set<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[433,33] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Supplier<capture#019 extends @ReceiverDependentMutable Set<V extends @Readonly Object>> <: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable Set<V extends @Readonly Object>>
+  use of T from checkNotNull(factory) <: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable Set<V extends @Readonly Object>>
+  From complementary bound.: use of T from checkNotNull(factory) -> @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable Set<V extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:checkNotNull(factory)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[443,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  method return type: @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[466,57] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of WrappedNavigableSet constructor.
+  found   : @Mutable NavigableSet<V extends @Readonly Object>
+  required: @PolyMutable NavigableSet<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[466,57] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable NavigableSet<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[468,54] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of WrappedSortedSet constructor.
+  found   : @Mutable SortedSet<V extends @Readonly Object>
+  required: @PolyMutable SortedSet<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[468,54] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[470,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of WrappedSet constructor.
+  found   : @Mutable Set<V extends @Readonly Object>
+  required: @PolyMutable Set<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[470,48] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable Set<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[486,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CustomSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[486,16] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Supplier<capture#024 extends @Mutable Set<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable Set<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[488,12] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setMap(java.util.Map<K,java.util.Collection<V>>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable CustomSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[539,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Supplier<capture#020 extends @ReceiverDependentMutable SortedSet<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable SortedSet<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[539,33] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Supplier<capture#020 extends @ReceiverDependentMutable SortedSet<V extends @Readonly Object>> <: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable SortedSet<V extends @Readonly Object>>
+  use of T from checkNotNull(factory) <: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable SortedSet<V extends @Readonly Object>>
+  From complementary bound.: use of T from checkNotNull(factory) -> @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable SortedSet<V extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:checkNotNull(factory)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[550,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  method return type: @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[576,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CustomSortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[576,16] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Supplier<capture#025 extends @Mutable SortedSet<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Supplier<? extends @ReceiverDependentMutable SortedSet<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[577,22] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CustomSortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[579,12] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setMap(java.util.Map<K,java.util.Collection<V>>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable CustomSortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[660,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Readonly Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[671,23] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableMultimap<K extends @Immutable Object, V extends @Immutable Object>
+  method return type: @Readonly Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[671,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Immutable ImmutableMultimap<K extends @Immutable Object, V extends @Immutable Object> <: @Readonly Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from checkNotNull(delegate) <: @Readonly Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(delegate) -> @Readonly Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(delegate)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[704,43] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Collections.unmodifiableMap
+  unsatisfiable constraint: @Readonly Collection<V extends @Readonly Object> <: @Mutable Collection<V extends @Readonly Object>
+  use of V1 from Maps.transformValues(delegate.asMap(), new Function<Collection<V>, Collection<V>>(){
+      
+      () {
+          super();
+      }
+      
+      @Override
+      public Collection<V> apply(Collection<V> collection) {
+          return unmodifiableValueCollection(collection);
+      }
+  }) <: @Mutable Collection<V extends @Readonly Object>
+  From complementary bound.: @Mutable Collection<V extends @Readonly Object> <= inference type: ? super V1
+  @Immutable UnmodifiableMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable <anonymous com.google.common.collect.Multimaps$UnmodifiableMultimap$1> <: inference type: com.google.common.base.Function<? super V1,V2>
+  @Immutable UnmodifiableMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable <anonymous com.google.common.collect.Multimaps$UnmodifiableMultimap$1> -> inference type: com.google.common.base.Function<? super V1,V2>
+  new Function<Collection<V>, Collection<V>>(){
+      
+      () {
+          super();
+      }
+      
+      @Override
+      public Collection<V> apply(Collection<V> collection) {
+          return unmodifiableValueCollection(collection);
+      }
+  } -> inference type: com.google.common.base.Function<? super V1,V2>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[722,63] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of Multimaps.unmodifiableEntries.
+  found   : @Readonly Collection<@Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Readonly Collection<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[729,22] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to forEach(java.util.function.BiConsumer<? super K,? super V>) not allowed on the given receiver.
+  found   : @Readonly Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[741,68] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of Multisets.unmodifiableMultiset.
+  found   : @Readonly Multiset<K extends @Immutable Object>
+  required: @Mutable Multiset<? extends K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[902,39] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to valueComparator() not allowed on the given receiver.
+  found   : @Readonly SortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost SortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[951,23] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSetMultimap<K extends @Immutable Object, V extends @Immutable Object>
+  method return type: @Readonly SetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[951,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Immutable ImmutableSetMultimap<K extends @Immutable Object, V extends @Immutable Object> <: @Readonly SetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from checkNotNull(delegate) <: @Readonly SetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(delegate) -> @Readonly SetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(delegate)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1030,23] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableListMultimap<K extends @Immutable Object, V extends @Immutable Object>
+  method return type: @Mutable ListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1030,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Immutable ImmutableListMultimap<K extends @Immutable Object, V extends @Immutable Object> <: @Mutable ListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from checkNotNull(delegate) <: @Mutable ListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(delegate) -> @Mutable ListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(delegate)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1044,47] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1046,41] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable Set<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1048,42] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable List<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1064,39] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<@Mutable Entry<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>>" to "@Mutable Set<@Readonly Entry<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1108,60] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Map<K [ extends @Immutable Object super @PICOBottom NullType ], @Mutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>>" to "@PolyMutable Map<K [ extends @Immutable Object super @PICOBottom NullType ], capture#026 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1140,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for MapMultimap constructor
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object = use of V from new MapMultimap<>(map)
+  From complementary bound.: V extends @Readonly Object <= use of V from new MapMultimap<>(map)
+  @Mutable Map<K extends @Immutable Object, V extends @Readonly Object> <: inference type: @org.checkerframework.checker.pico.qual.ReceiverDependentMutable java.util.Map<K,V>
+  @Mutable Map<K extends @Immutable Object, V extends @Readonly Object> -> inference type: @org.checkerframework.checker.pico.qual.ReceiverDependentMutable java.util.Map<K,V>
+  map -> inference type: @org.checkerframework.checker.pico.qual.ReceiverDependentMutable java.util.Map<K,V>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1175,25] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to entrySet() not allowed on the given receiver.
+  found   : @PICOLost Map<K extends @Immutable Object, V extends @Immutable Object>
+  required: @PICOLost Map<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1175,56] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Maps.immutableEntry
+  unsatisfiable constraint: @Readonly Object <: @Immutable Object
+  @Readonly Object <: use of K from Maps.immutableEntry(key, value)
+  From complementary bound.: @Readonly Object -> use of K from Maps.immutableEntry(key, value)
+  key -> use of K from Maps.immutableEntry(key, value)
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1180,60] [[immutability, pico, piconoinit, allcheckers]:constructor.return.invalid] Invalid constructor return type: @Mutable MapMultimap<K extends @Immutable Object, V extends @Immutable Object>.@PolyMutable <anonymous com.google.common.collect.Multimaps$MapMultimap$1>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1244,54] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Maps.immutableEntry
+  unsatisfiable constraint: @Readonly Object <: @Immutable Object
+  @Readonly Object <: use of K from Maps.immutableEntry(key, value)
+  From complementary bound.: @Readonly Object -> use of K from Maps.immutableEntry(key, value)
+  key -> use of K from Maps.immutableEntry(key, value)
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1287,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Keys<K extends @Immutable Object, V extends @Immutable Object>
+  method return type: @PolyMutable Multiset<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1287,38] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Keys constructor.
+  found   : @PolyMutable MapMultimap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1297,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AsMap<K extends @Immutable Object, V extends @Immutable Object>
+  method return type: @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1297,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of AsMap constructor.
+  found   : @PolyMutable MapMultimap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1536,70] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter transformer of Maps.asValueToValueFunction.
+  found   : @ReceiverDependentMutable EntryTransformer<capture#027 extends @Immutable Object super K extends @Immutable Object, capture#028 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, capture#028 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1546,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Maps.transformEntries
+  unsatisfiable constraint: @PolyMutable Collection<V1 extends @Readonly Object> <: @Mutable Collection<V1 extends @Readonly Object>
+  use of V1 from Maps.transformEntries(fromMultimap.asMap(), new EntryTransformer<K, Collection<V1>, Collection<V2>>(){
+      
+      () {
+          super();
+      }
+      
+      @Override
+      @PolyMutable
+      public Collection<V2> transformEntry(@ParametricNullness
+      K key, @PolyMutable
+      Collection<V1> value) {
+          return transform(key, value);
+      }
+  }) <: @Mutable Collection<V1 extends @Readonly Object>
+  From complementary bound.: @Mutable Collection<V1 extends @Readonly Object> <= inference type: ? super V1
+  @PolyMutable TransformedEntriesMultimap<K extends @Immutable Object, V1 extends @Readonly Object, V2 extends @Readonly Object>.@Mutable <anonymous com.google.common.collect.Multimaps$TransformedEntriesMultimap$1> <: inference type: com.google.common.collect.Maps.EntryTransformer<? super K,? super V1,V2>
+  @PolyMutable TransformedEntriesMultimap<K extends @Immutable Object, V1 extends @Readonly Object, V2 extends @Readonly Object>.@Mutable <anonymous com.google.common.collect.Multimaps$TransformedEntriesMultimap$1> -> inference type: com.google.common.collect.Maps.EntryTransformer<? super K,? super V1,V2>
+  new EntryTransformer<K, Collection<V1>, Collection<V2>>(){
+      
+      () {
+          super();
+      }
+      
+      @Override
+      @PolyMutable
+      public Collection<V2> transformEntry(@ParametricNullness
+      K key, @PolyMutable
+      Collection<V1> value) {
+          return transform(key, value);
+      }
+  } -> inference type: com.google.common.collect.Maps.EntryTransformer<? super K,? super V1,V2>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1568,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable TransformedEntriesMultimap<K extends @Immutable Object, V1 extends @Readonly Object, V2 extends @Readonly Object>.@Mutable Entries
+  method return type: @PolyMutable Collection<@PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1573,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Iterator<@Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+  method return type: @Mutable Iterator<@PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1573,32] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Iterators.transform
+  unsatisfiable constraint: @PolyMutable Entry<K extends @Immutable Object, V1 extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  use of F from Iterators.transform(fromMultimap.entries().iterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer)) <: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  From complementary bound.: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object> <= inference type: ? super F
+  @Mutable Function<@Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>, @Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>> <: inference type: com.google.common.base.Function<? super F,? extends T>
+  @Mutable Function<@Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>, @Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>> -> inference type: com.google.common.base.Function<? super F,? extends T>
+  Maps.<K, V1, V2>asEntryToEntryFunction(transformer) -> inference type: com.google.common.base.Function<? super F,? extends T>
+  From: Argument constraint
+  @Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object> <: @PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+  use of T from Iterators.transform(fromMultimap.entries().iterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer)) <: @PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+  From complementary bound.: use of T from Iterators.transform(fromMultimap.entries().iterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer)) <= @PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+  inference type: java.util.Iterator<T> <: @Mutable Iterator<@PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+  inference type: java.util.Iterator<T> -> @Mutable Iterator<@PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:Iterators.transform(fromMultimap.entries().iterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer))
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1579,22] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Collection<V2 extends @Readonly Object>
+  method return type: @PolyMutable Collection<V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1579,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter values of TransformedEntriesMultimap.transform.
+  found   : @PolyMutable Collection<V1 extends @Readonly Object>
+  required: @Mutable Collection<V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1615,17] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1615,32] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove(java.lang.Object) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Collection<V2 extends @Readonly Object>
+  required: @Mutable Collection<V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1621,23] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1636,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Collection<V2 extends @Readonly Object>
+  method return type: @PolyMutable Collection<V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1636,35] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Collections2.transform
+  unsatisfiable constraint: @PolyMutable Entry<K extends @Immutable Object, V1 extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  use of F from Collections2.transform(fromMultimap.entries(), Maps.<K, V1, V2>asEntryToValueFunction(transformer)) <: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  From complementary bound.: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object> <= inference type: ? super F
+  @Mutable Function<@Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>, V2 extends @Readonly Object> <: inference type: com.google.common.base.Function<? super F,T>
+  @Mutable Function<@Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>, V2 extends @Readonly Object> -> inference type: com.google.common.base.Function<? super F,T>
+  Maps.<K, V1, V2>asEntryToValueFunction(transformer) -> inference type: com.google.common.base.Function<? super F,T>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1653,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable List<V2 extends @Readonly Object>
+  method return type: @PolyMutable List<V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1653,29] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Collection<V1 [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable List<V1 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1653,76] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter transformer of Maps.asValueToValueFunction.
+  found   : @ReceiverDependentMutable EntryTransformer<capture#029 extends @Immutable Object super K extends @Immutable Object, capture#030 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, capture#030 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1664,23] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1710,16] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableListMultimap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Immutable Object super @Immutable NullType ]>
+  method return type: @Immutable ImmutableListMultimap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Immutable Object super @PICOBottom NullType ]>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1756,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of Builder.put.
+  found   : V extends @Readonly Object
+  required: V extends @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1773,46] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backingIterator of  constructor.
+  found   : @Mutable Iterator<@PolyMutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>>
+  required: @Mutable Iterator<? extends @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1805,27] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to asMap() not allowed on the given receiver.
+  found   : @PICOLost Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1825,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Maps.safeGet.
+  found   : @PICOLost Map<K extends @Immutable Object, @PICOLost Collection<V extends @Readonly Object>>
+  required: @Readonly Map<? extends @Immutable Object, @PICOLost Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1825,56] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to asMap() not allowed on the given receiver.
+  found   : @PICOLost Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1885,32] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#031 [ extends @Immutable Object super @PICOBottom NullType ], capture#032 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1894,32] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#033 [ extends @Immutable Object super @PICOBottom NullType ], capture#034 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1918,28] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to keySet() not allowed on the given receiver.
+  found   : @PICOLost Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1923,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable AsMap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable EntrySet
+  method return type: @PolyMutable Set<@Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1927,30] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove(java.lang.Object) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Set<K extends @Immutable Object>
+  required: @Mutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1936,20] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable AsMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1957,47] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#035 [ extends @Immutable Object super @PICOBottom NullType ], capture#036 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1967,24] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to containsKey(@org.checkerframework.checker.signedness.qual.UnknownSignedness,@org.checkerframework.checker.pico.qual.Readonly java.lang.Object) not allowed on the given receiver.
+  found   : @PolyMutable AsMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AsMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[1967,45] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multimaps.java:[2293,28] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Multimap<capture#037 [ extends @Immutable Object super @PICOBottom NullType ], capture#038 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[413,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[422,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[428,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[434,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[460,45] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Collection<V extends @Readonly Object>
+  required: @ReceiverDependentMutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[463,49] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<V extends @Readonly Object>
+  required: @ReceiverDependentMutable Iterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[490,36] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Iterator<V extends @Readonly Object>
+  required: @Mutable Iterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[495,31] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Iterator<V extends @Readonly Object>
+  required: @Mutable Iterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[502,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Iterator<V extends @Readonly Object>
+  method return type: @Mutable Iterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[508,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[510,36] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to add(E) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[514,18] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to addToMap() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[522,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  method return type: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[533,39] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to addAll(java.util.Collection<? extends E>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[538,18] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to addToMap() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[546,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[552,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[562,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[564,19] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to removeIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[568,86] [[immutability, pico, piconoinit, allcheckers]:type.anno.before.decl.anno] write type annotations [@Mutable] immediately before type, after declaration annotation @CheckForNull
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[568,86] [[immutability, pico, piconoinit, allcheckers]:type.invalid.conflicting.annos] invalid type: conflicting annotations [@Mutable, @Readonly] in type "@Mutable @Readonly Object"
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[569,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[570,39] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove(java.lang.Object) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[570,40] [[immutability, pico, piconoinit, allcheckers]:type.invalid.conflicting.annos] invalid type: conflicting annotations [@Mutable, @Readonly] in type "@Mutable @Readonly Object"
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[573,21] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to removeIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[584,42] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to removeAll(java.util.Collection<?>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[588,21] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to removeIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[597,42] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to retainAll(java.util.Collection<?>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[601,21] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to removeIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[654,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[666,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedSortedSet
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[673,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedSortedSet
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[679,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedSortedSet
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[683,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter ancestor of WrappedSortedSet constructor.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[688,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedSortedSet
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[692,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter ancestor of WrappedSortedSet constructor.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[697,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedSortedSet
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[701,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter ancestor of WrappedSortedSet constructor.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[717,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable SortedSet<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@PolyMutable NavigableSet<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[757,75] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter ancestor of WrappedNavigableSet constructor.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[762,54] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter wrapped of WrappedNavigableSet.wrap.
+  found   : @ReceiverDependentMutable NavigableSet<V extends @Readonly Object>
+  required: @Mutable NavigableSet<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[777,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter wrapped of WrappedNavigableSet.wrap.
+  found   : @ReceiverDependentMutable NavigableSet<V extends @Readonly Object>
+  required: @Mutable NavigableSet<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[782,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter wrapped of WrappedNavigableSet.wrap.
+  found   : @ReceiverDependentMutable NavigableSet<V extends @Readonly Object>
+  required: @Mutable NavigableSet<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[787,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter wrapped of WrappedNavigableSet.wrap.
+  found   : @ReceiverDependentMutable NavigableSet<V extends @Readonly Object>
+  required: @Mutable NavigableSet<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[797,27] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter ancestor of WrappedCollection constructor.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[801,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable List<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[815,18] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to addToMap() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[824,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[831,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[837,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[842,16] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to addToMap() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[849,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[852,19] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to removeIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[858,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[864,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[870,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[876,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[882,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to refreshIfEmpty() not allowed on the given receiver.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable WrappedList
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[886,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter ancestor of AbstractMapBasedMultimap.wrapList.
+  found   : @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly WrappedCollection
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable WrappedCollection
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[895,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegateIterator of WrappedIterator constructor.
+  found   : @Mutable ListIterator<V extends @Readonly Object>
+  required: @ReceiverDependentMutable Iterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[959,46] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter subMap of NavigableKeySet constructor.
+  found   : @PolyMutable NavigableMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable NavigableMap<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[961,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter subMap of SortedKeySet constructor.
+  found   : @PolyMutable SortedMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable SortedMap<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[976,87] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@ReceiverDependentMutable Entry<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>>
+  required: @Readonly Iterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1014,45] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove(java.lang.Object) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1017,24] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1049,12] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter subMap of KeySet constructor.
+  found   : @Mutable SortedMap<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1053,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Map<K [ extends @Immutable Object super @PICOBottom NullType ], @ReceiverDependentMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>>" to "@Mutable SortedMap<K [ extends @Immutable Object super @PICOBottom NullType ], @Mutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1187,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Maps.safeRemove.
+  found   : @ReceiverDependentMutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Map<? extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1191,22] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1192,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1204,43] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+  required: @ReceiverDependentMutable Iterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1207,55] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<V extends @Readonly Object>
+  required: @ReceiverDependentMutable Iterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1220,59] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Iterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+  required: @Mutable Iterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1221,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable Itr<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1222,19] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable Itr<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1222,38] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Collection<V extends @Readonly Object>
+  required: @ReceiverDependentMutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1223,22] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable Itr<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1223,43] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<V extends @Readonly Object>
+  required: @ReceiverDependentMutable Iterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1229,70] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Iterator<V extends @Readonly Object>
+  required: @Mutable Iterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1234,26] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Iterator<V extends @Readonly Object>
+  required: @Mutable Iterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1240,26] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Iterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+  required: @Mutable Iterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1259,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable Values
+  method return type: @PolyMutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1289,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Keys<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable Multiset<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1289,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Keys constructor.
+  found   : @PolyMutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1309,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable EntrySet
+  method return type: @PolyMutable Collection<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1311,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable Entries
+  method return type: @PolyMutable Collection<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1335,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<@Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Spliterator<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1335,38] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CollectSpliterators.flatMap
+  unsatisfiable constraint: @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1356,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable AsMap
+  method return type: @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1356,21] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter submap of AsMap constructor.
+  found   : @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Map<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1361,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable NavigableAsMap
+  method return type: @Mutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1361,32] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Map<K [ extends @Immutable Object super @PICOBottom NullType ], @PolyMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>>" to "@Mutable NavigableMap<K [ extends @Immutable Object super @PICOBottom NullType ], @Mutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1363,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable SortedAsMap
+  method return type: @Mutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1363,29] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Map<K [ extends @Immutable Object super @PICOBottom NullType ], @PolyMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>>" to "@Mutable SortedMap<K [ extends @Immutable Object super @PICOBottom NullType ], @Mutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1365,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable AsMap
+  method return type: @Mutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1365,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter submap of AsMap constructor.
+  found   : @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Map<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1384,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@PolyMutable AsMap.@Mutable AsMapEntries
+  method return type: @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1402,12] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1403,27] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Collection<V extends @Readonly Object>
+  method return type: @PolyMutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1408,49] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<K extends @Immutable Object>
+  method return type: @PolyMutable Set<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1465,20] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable AsMap
+  method return type: @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1475,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<@Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+  method return type: @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1475,38] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CollectSpliterators.map
+  unsatisfiable constraint: @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>> <: @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  use of OutElementT from CollectSpliterators.map(submap.entrySet().spliterator(), AsMap.this::wrapEntry) <: @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  From complementary bound.: use of OutElementT from CollectSpliterators.map(submap.entrySet().spliterator(), AsMap.this::wrapEntry) <= @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  inference type: java.util.Spliterator<OutElementT> <: @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+  inference type: java.util.Spliterator<OutElementT> -> @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+  From: Constraint between method call type and target type for method call:CollectSpliterators.map(submap.entrySet().spliterator(), AsMap.this::wrapEntry)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1491,43] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#039 [ extends @Immutable Object super @PICOBottom NullType ], capture#040 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1511,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  method return type: @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1529,12] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter submap of AsMap constructor.
+  found   : @ReceiverDependentMutable SortedMap<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1556,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable SortedAsMap
+  method return type: @PolyMutable SortedMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1556,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter submap of SortedAsMap constructor.
+  found   : @PolyMutable SortedMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable SortedMap<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1562,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@PolyMutable SortedAsMap
+  method return type: @PolyMutable SortedMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1562,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter submap of SortedAsMap constructor.
+  found   : @ReceiverDependentMutable SortedMap<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @PolyMutable SortedMap<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1567,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@PolyMutable SortedAsMap
+  method return type: @PolyMutable SortedMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1567,61] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter submap of SortedAsMap constructor.
+  found   : @ReceiverDependentMutable SortedMap<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @PolyMutable SortedMap<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1577,45] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@PolyMutable SortedAsMap
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1582,52] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter subMap of SortedKeySet constructor.
+  found   : @PolyMutable SortedMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable SortedMap<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1590,12] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter submap of SortedAsMap constructor.
+  found   : @Mutable NavigableMap<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable SortedMap<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1595,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable SortedMap<K [ extends @Immutable Object super @PICOBottom NullType ], @PolyMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>>" to "@Mutable NavigableMap<K [ extends @Immutable Object super @PICOBottom NullType ], @PolyMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1602,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  method return type: @PolyMutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1602,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of AsMap.wrapEntry.
+  found   : @Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1614,88] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @PolyMutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1615,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  method return type: @PolyMutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1615,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of AsMap.wrapEntry.
+  found   : @PolyMutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1628,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  method return type: @Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1628,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of AsMap.wrapEntry.
+  found   : @Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1641,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  method return type: @Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1641,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of AsMap.wrapEntry.
+  found   : @Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1654,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  method return type: @Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1654,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of AsMap.wrapEntry.
+  found   : @Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1661,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  method return type: @Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1661,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of AsMap.wrapEntry.
+  found   : @Mutable Entry<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1685,32] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Maps.immutableEntry
+  unsatisfiable constraint: @Readonly Collection<V extends @Readonly Object> <: @Mutable Collection<V extends @Readonly Object>
+  use of V from Maps.immutableEntry(entry.getKey(), unmodifiableCollectionSubclass(output)) = @Mutable Collection<V extends @Readonly Object>
+  From complementary bound.: use of V from Maps.immutableEntry(entry.getKey(), unmodifiableCollectionSubclass(output)) <= @Mutable Collection<V extends @Readonly Object>
+  inference type: @org.checkerframework.checker.pico.qual.Immutable java.util.Map.Entry<K,V> <: @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  inference type: @org.checkerframework.checker.pico.qual.Immutable java.util.Map.Entry<K,V> -> @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:Maps.immutableEntry(entry.getKey(), unmodifiableCollectionSubclass(output))
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1690,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@PolyMutable NavigableAsMap
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1700,55] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter subMap of NavigableKeySet constructor.
+  found   : @Mutable NavigableMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable NavigableMap<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1727,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@PolyMutable NavigableAsMap
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1737,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@PolyMutable NavigableAsMap
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java:[1749,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>.@PolyMutable NavigableAsMap
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSetMultimap.java:[70,39] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable Set<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedSetMultimap.java:[63,41] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to <E>unmodifiableCollectionSubclass(@org.checkerframework.checker.pico.qual.Readonly java.util.Collection<E>) not allowed on the given receiver.
+  found   : @Readonly AbstractSortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost AbstractSortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedSetMultimap.java:[70,43] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable NavigableSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedSetMultimap.java:[72,47] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[100,41] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter c of AbstractCollection.retainAll.
+  found   : @Readonly Collection<capture#041 extends @Readonly Object>
+  required: @Mutable Collection<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[100,41] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Readonly Collection<capture#041 extends @Readonly Object> <: @Mutable Collection<? extends @Readonly Object>
+  use of T from checkNotNull(c) <: @Mutable Collection<? extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(c) -> @Mutable Collection<? extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(c)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[119,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of ImmutableEnumSet.asImmutable.
+  found   : @Mutable EnumSet</*RAW*/>
+  required: @Immutable EnumSet</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[142,58] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of ImmutableEnumSet.asImmutable.
+  found   : @Mutable EnumSet</*RAW*/>
+  required: @Immutable EnumSet</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[149,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of ImmutableEnumSet.asImmutable.
+  found   : @Mutable EnumSet<E extends @Immutable Enum<E extends @Immutable Enum<E>>>
+  required: @Immutable EnumSet</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[474,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Iterable<capture#042 [ extends E [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" to "@Mutable Collection<capture#043 [ extends E [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[475,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of Lists.newArrayList.
+  found   : @Readonly Iterable<capture#044 extends E extends @Readonly Object>
+  required: @Mutable Iterable<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[494,34] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<E [ extends @Immutable Enum<E [ extends @Immutable Enum<E> super @PICOBottom NullType ]> super @PICOBottom NullType ]>" to "@Mutable EnumSet<E [ extends @Immutable Enum<E [ extends @Immutable Enum<E> super @PICOBottom NullType ]> super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[516,31] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<E [ extends @Immutable Enum<E [ extends @Immutable Enum<E> super @PICOBottom NullType ]> super @PICOBottom NullType ]>" to "@Mutable EnumSet<E [ extends @Immutable Enum<E [ extends @Immutable Enum<E> super @PICOBottom NullType ]> super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[585,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of ImmutableSet.copyOf.
+  found   : @ReceiverDependentMutable SetView<E extends @Readonly Object>
+  required: @Mutable Collection<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[746,58] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<capture#045 extends E extends @Readonly Object>
+  required: @Immutable Iterator<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[747,58] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<capture#046 extends E extends @Readonly Object>
+  required: @Immutable Iterator<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[753,30] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable Iterator<? extends E extends @Readonly Object>
+  required: @Mutable Iterator<capture#047 extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[756,29] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable Iterator<? extends E extends @Readonly Object>
+  required: @Mutable Iterator<capture#048 extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[761,28] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to endOfData() not allowed on the given receiver.
+  found   : @Mutable <anonymous com.google.common.collect.Sets$1>.@Immutable <anonymous com.google.common.collect.Sets$1$1>
+  required: @Mutable AbstractIterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[832,47] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<E extends @Readonly Object>
+  required: @Immutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[838,28] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable Iterator<E extends @Readonly Object>
+  required: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[843,28] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to endOfData() not allowed on the given receiver.
+  found   : @Mutable <anonymous com.google.common.collect.Sets$2>.@Immutable <anonymous com.google.common.collect.Sets$2$1>
+  required: @Mutable AbstractIterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[904,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable UnmodifiableIterator<E extends @Readonly Object>
+  method return type: @Immutable UnmodifiableIterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[975,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable UnmodifiableIterator<E extends @Readonly Object>
+  method return type: @Immutable UnmodifiableIterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1054,20] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Set<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1059,32] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Set<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable FilteredSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1064,42] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of FilteredSet constructor.
+  found   : @Readonly Set<E extends @Readonly Object>
+  required: @Mutable Set<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1064,42] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Readonly Set<E extends @Readonly Object> <: @Mutable Set<E extends @Readonly Object>
+  use of T from checkNotNull(unfiltered) <: @Mutable Set<E extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(unfiltered) -> @Mutable Set<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(unfiltered)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1172,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PICOLost Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1177,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable FilteredSortedSet<E extends @Readonly Object>
+  method return type: @PolyMutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1178,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1178,70] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of FilteredSortedSet constructor.
+  found   : @PolyMutable Predicate<capture#049 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1183,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable FilteredSortedSet<E extends @Readonly Object>
+  method return type: @PolyMutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1183,39] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1183,86] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of FilteredSortedSet constructor.
+  found   : @PolyMutable Predicate<capture#050 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1188,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable FilteredSortedSet<E extends @Readonly Object>
+  method return type: @PolyMutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1188,39] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1188,88] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of FilteredSortedSet constructor.
+  found   : @PolyMutable Predicate<capture#051 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1194,51] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Iterators.find.
+  found   : @PICOLost Predicate<capture#052 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1200,38] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PICOLost Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1203,27] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to apply(T) not allowed on the given receiver.
+  found   : @PICOLost Predicate<? extends @Readonly Object super E extends @Readonly Object>
+  required: @PICOLost Predicate<capture#053 extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1220,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable NavigableSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1226,81] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Iterators.find.
+  found   : @ReceiverDependentMutable Predicate<capture#054 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1232,80] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Iterators.find.
+  found   : @ReceiverDependentMutable Predicate<capture#055 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1238,59] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Iterables.find.
+  found   : @ReceiverDependentMutable Predicate<capture#056 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1244,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Iterables.find.
+  found   : @ReceiverDependentMutable Predicate<capture#057 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1250,57] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Iterables.removeFirstMatching.
+  found   : @ReceiverDependentMutable Predicate<capture#058 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1256,73] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Iterables.removeFirstMatching.
+  found   : @ReceiverDependentMutable Predicate<capture#059 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1261,55] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Sets.filter.
+  found   : @ReceiverDependentMutable Predicate<capture#060 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1266,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<E extends @Readonly Object>
+  method return type: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1266,65] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter retainIfTrue of Iterators.filter.
+  found   : @ReceiverDependentMutable Predicate<capture#061 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1272,63] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Iterators.find.
+  found   : @ReceiverDependentMutable Predicate<capture#062 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1282,83] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Sets.filter.
+  found   : @ReceiverDependentMutable Predicate<capture#063 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1287,64] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Sets.filter.
+  found   : @ReceiverDependentMutable Predicate<capture#064 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1292,66] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Sets.filter.
+  found   : @ReceiverDependentMutable Predicate<capture#065 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1422,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSet<@Mutable List<E extends @Readonly Object>>
+  method return type: @Mutable Set<@Mutable List<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1428,10] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Readonly <anonymous com.google.common.collect.Sets$CartesianSet$1> <init>() not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1436,43] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableList<E extends @Readonly Object>
+  method return type: @Mutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1444,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of CartesianSet constructor.
+  found   : @Immutable CartesianList<E extends @Readonly Object>
+  required: @Mutable CartesianList<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1444,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter axes of CartesianList constructor.
+  found   : @Readonly ImmutableList<@Mutable List<E extends @Readonly Object>>
+  required: @Immutable ImmutableList<@Immutable List<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1447,105] [[immutability, pico, piconoinit, allcheckers]:type.invalid.annotations.on.use] invalid type: annotations [@ReceiverDependentMutable] conflict with declaration of type com.google.common.collect.CartesianList
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1449,22] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @ReceiverDependentMutable CartesianList<E extends @Readonly Object>
+  required: @Immutable CartesianList<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1454,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable CartesianList<E extends @Readonly Object>
+  method return type: @PolyMutable Collection<@Mutable List<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1462,21] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable List<capture#066 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1481,31] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable CartesianSet<capture#067 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1551,13] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Readonly SubSet<E extends @Immutable Object>.@Readonly <anonymous com.google.common.collect.Sets$SubSet$1> <init>(@Mutable SubSet<E extends @Immutable Object> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1551,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Iterator<E extends @Immutable Object>
+  method return type: @Mutable Iterator<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1617,21] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Set<capture#068 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1626,27] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable PowerSet<capture#069 [ extends @Immutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1678,55] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of ImmutableSet.of.
+  found   : @Immutable ImmutableSet<E extends @Immutable Object>
+  required: @Mutable Set<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1680,49] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of ImmutableSet.of.
+  found   : @Immutable ImmutableSet<E extends @Immutable Object>
+  required: @Mutable Set<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1682,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<@Mutable Set<E extends @Immutable Object>>
+  method return type: @Immutable Set<@Mutable Set<E extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1686,21] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Set<capture#070 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1792,17] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Set<capture#071 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1904,31] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable UnmodifiableNavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1905,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable UnmodifiableNavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[1912,43] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<E extends @Readonly Object>
+  method return type: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[2001,20] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<capture#072 [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable Multiset<capture#073 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[2028,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  method return type: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[2058,29] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to pollLast() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  required: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[2064,30] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to pollFirst() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  required: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[2069,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  method return type: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[2083,93] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  method return type: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[2093,64] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  method return type: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[2103,66] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  method return type: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[2147,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @ReceiverDependentMutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Sets.java:[2153,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of ForwardingCollection.standardToArray.
+  found   : T extends @Mutable Object @Mutable []
+  required: T extends @Mutable Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractIterator.java:[75,105] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.extends.clause] Class with annotation @ReceiverDependentMutable cannot extend @Immutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractIterator.java:[79,31] [[immutability, pico, piconoinit, allcheckers]:super.invocation.invalid] Constructor of type @ReceiverDependentMutable cannot call super() of type @Immutable.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractIterator.java:[149,27] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to tryToComputeNext() not allowed on the given receiver.
+  found   : @Readonly AbstractIterator<T extends @Readonly Object>
+  required: @Mutable AbstractIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[146,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Predicate<capture#078 extends @Readonly Object super E extends @Readonly Object>
+  required: @ReceiverDependentMutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[150,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of FilteredCollection constructor.
+  found   : @ReceiverDependentMutable Collection<E extends @Readonly Object>
+  required: @Mutable Collection<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[150,69] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter first of Predicates.and.
+  found   : @ReceiverDependentMutable Predicate<capture#079 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[179,30] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to apply(T) not allowed on the given receiver.
+  found   : @PICOLost Predicate<? extends @Readonly Object super E extends @Readonly Object>
+  required: @PICOLost Predicate<capture#080 extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[193,28] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter iterable of Iterables.any.
+  found   : @PICOLost Collection<E extends @Readonly Object>
+  required: @Mutable Iterable<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[193,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Iterables.any.
+  found   : @PICOLost Predicate<capture#081 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[198,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<E extends @Readonly Object>
+  method return type: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[198,53] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter retainIfTrue of Iterators.filter.
+  found   : @PICOLost Predicate<capture#082 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[203,66] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of CollectSpliterators.filter.
+  found   : @PICOLost Predicate<capture#083 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[243,27] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to apply(T) not allowed on the given receiver.
+  found   : @PICOLost Predicate<? extends @Readonly Object super E extends @Readonly Object>
+  required: @PICOLost Predicate<capture#084 extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[299,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Function<capture#076 extends @Readonly Object super F extends @Readonly Object, capture#077 extends T extends @Readonly Object>
+  required: @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[299,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Function<capture#076 extends @Readonly Object super F extends @Readonly Object, capture#077 extends T extends @Readonly Object> <: @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+  use of T from checkNotNull(function) <: @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(function) -> @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(function)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[315,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Iterators.transform.
+  found   : @PICOLost Function<capture#085 extends @Readonly Object super F extends @Readonly Object, capture#086 extends T extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[321,67] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of CollectSpliterators.map.
+  found   : @PICOLost Function<capture#087 extends @Readonly Object super F extends @Readonly Object, capture#088 extends T extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[463,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable OrderedPermutationCollection<E extends @Readonly Object>
+  method return type: @Mutable Collection<@Mutable List<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[474,24] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Comparator<capture#089 extends @Readonly Object super E extends @Readonly Object>
+  required: @Immutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[475,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter sortedInputList of OrderedPermutationCollection.calculateSize.
+  found   : @Immutable ImmutableList<E extends @Readonly Object>
+  required: @Mutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[520,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter list of OrderedPermutationIterator constructor.
+  found   : @Immutable ImmutableList<E extends @Readonly Object>
+  required: @Mutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[520,58] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter comparator of OrderedPermutationIterator constructor.
+  found   : @Immutable Comparator<capture#090 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[526,23] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable List<capture#091 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[544,47] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable ArrayList<E extends @Readonly Object>
+  required: @ReceiverDependentMutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[544,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of Lists.newArrayList.
+  found   : @ReceiverDependentMutable List<E extends @Readonly Object>
+  required: @Mutable Iterable<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[545,24] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Comparator<capture#092 extends @Readonly Object super E extends @Readonly Object>
+  required: @ReceiverDependentMutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[552,24] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to endOfData() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable OrderedPermutationIterator<E extends @Readonly Object>
+  required: @Mutable AbstractIterator<@Mutable List<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[554,51] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of ImmutableList.copyOf.
+  found   : @ReceiverDependentMutable List<E extends @Readonly Object>
+  required: @Mutable Collection<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[556,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableList<E extends @Readonly Object>
+  method return type: @Mutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[562,24] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable OrderedPermutationIterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[572,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter list of Collections.swap.
+  found   : @ReceiverDependentMutable List<E extends @Readonly Object>
+  required: @Mutable List<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[574,49] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter list of Collections.reverse.
+  found   : @ReceiverDependentMutable List<E extends @Readonly Object>
+  required: @Mutable List<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[626,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable PermutationCollection<E extends @Readonly Object>
+  method return type: @Mutable Collection<@Mutable List<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[626,61] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of ImmutableList.copyOf.
+  found   : @Readonly Collection<E extends @Readonly Object>
+  required: @Mutable Collection<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[649,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter list of PermutationIterator constructor.
+  found   : @Immutable ImmutableList<E extends @Readonly Object>
+  required: @Mutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[655,23] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable List<capture#093 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[675,18] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable ArrayList<E extends @Readonly Object>
+  required: @ReceiverDependentMutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[677,10] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[678,10] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[679,18] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of Arrays.fill.
+  found   : @Immutable int @ReceiverDependentMutable []
+  required: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[680,18] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of Arrays.fill.
+  found   : @Immutable int @ReceiverDependentMutable []
+  required: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[688,24] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to endOfData() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable PermutationIterator<E extends @Readonly Object>
+  required: @Mutable AbstractIterator<@Mutable List<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[690,51] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of ImmutableList.copyOf.
+  found   : @ReceiverDependentMutable List<E extends @Readonly Object>
+  required: @Mutable Collection<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[692,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableList<E extends @Readonly Object>
+  method return type: @Mutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[696,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable PermutationIterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[720,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter list of Collections.swap.
+  found   : @ReceiverDependentMutable List<E extends @Readonly Object>
+  required: @Mutable List<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[721,8] [[immutability, pico, piconoinit, allcheckers]:illegal.array.write] Cannot write array via receiver: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[727,6] [[immutability, pico, piconoinit, allcheckers]:illegal.array.write] Cannot write array via receiver: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[728,7] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable PermutationIterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[737,51] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for HashMultiset.create
+  unsatisfiable constraint: @Readonly Object <: @Immutable Object
+  capture#074 extends @Readonly Object <: use of E from HashMultiset.create(first)
+  From complementary bound.: capture#074 extends @Readonly Object <= inference type: ? extends E
+  @Readonly List<capture#074 extends @Readonly Object> <: inference type: @org.checkerframework.checker.pico.qual.Readonly java.lang.Iterable<? extends E>
+  @Readonly List<capture#074 extends @Readonly Object> -> inference type: @org.checkerframework.checker.pico.qual.Readonly java.lang.Iterable<? extends E>
+  first -> inference type: @org.checkerframework.checker.pico.qual.Readonly java.lang.Iterable<? extends E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Collections2.java:[738,52] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for HashMultiset.create
+  unsatisfiable constraint: @Readonly Object <: @Immutable Object
+  capture#075 extends @Readonly Object <: use of E from HashMultiset.create(second)
+  From complementary bound.: capture#075 extends @Readonly Object <= inference type: ? extends E
+  @Readonly List<capture#075 extends @Readonly Object> <: inference type: @org.checkerframework.checker.pico.qual.Readonly java.lang.Iterable<? extends E>
+  @Readonly List<capture#075 extends @Readonly Object> -> inference type: @org.checkerframework.checker.pico.qual.Readonly java.lang.Iterable<? extends E>
+  second -> inference type: @org.checkerframework.checker.pico.qual.Readonly java.lang.Iterable<? extends E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingCollection.java:[141,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable Object @Mutable []
+  method return type: @PolyMutable Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingCollection.java:[148,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: T extends @Readonly Object @Mutable []
+  method return type: T extends @Readonly Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingCollection.java:[148,30] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of Collection.toArray.
+  found   : T extends @Readonly Object @ReceiverDependentMutable []
+  required: T extends @Readonly Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedSet.java:[93,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly SortedSet<E extends @Readonly Object>
+  method return type: @Mutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedSet.java:[128,41] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly ForwardingSortedSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<@Mutable Object>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedSet.java:[129,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of SortedSet.tailSet.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedSet.java:[150,42] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of SortedSet.tailSet.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedSet.java:[174,39] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly SortedSet<E extends @Readonly Object>
+  method return type: @Mutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableSet.java:[192,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter forward of DescendingSet constructor.
+  found   : @Mutable ForwardingNavigableSet<E extends @Readonly Object>
+  required: @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMultiset.java:[65,19] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to entrySet() not allowed on the given receiver.
+  found   : @Readonly AbstractMultiset<E extends @Readonly Object>
+  required: @PICOLost AbstractMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMultiset.java:[168,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AbstractMultiset<E extends @Readonly Object>
+  method return type: @ReceiverDependentMutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMultiset.java:[173,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Iterator<E extends @Readonly Object>
+  method return type: @ReceiverDependentMutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMultiset.java:[186,24] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<@Mutable Entry<E extends @Readonly Object>>
+  required: @ReceiverDependentMutable Set<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMultiset.java:[188,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Set<@Mutable Entry<E extends @Readonly Object>>
+  method return type: @Mutable Set<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMultiset.java:[240,19] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to entrySet() not allowed on the given receiver.
+  found   : @Readonly AbstractMultiset<E extends @Readonly Object>
+  required: @PICOLost AbstractMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMultiset.java:[252,19] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to entrySet() not allowed on the given receiver.
+  found   : @Readonly AbstractMultiset<E extends @Readonly Object>
+  required: @PICOLost AbstractMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[133,23] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableMultiset<E extends @Readonly Object>
+  method return type: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[133,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Immutable ImmutableMultiset<E extends @Readonly Object> <: @Mutable Multiset<E extends @Readonly Object>
+  use of T from checkNotNull(multiset) <: @Mutable Multiset<E extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(multiset) -> @Mutable Multiset<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(multiset)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[149,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Multiset<capture#095 [ extends E [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" to "@Mutable Multiset<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[156,43] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Set<E extends @Readonly Object>
+  method return type: @Mutable Set<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[163,57] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<E extends @Readonly Object>
+  required: @PolyMutable Set<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[163,57] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to createElementSet() not allowed on the given receiver.
+  found   : @PolyMutable UnmodifiableMultiset<E extends @Readonly Object>
+  required: @Immutable UnmodifiableMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[177,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set</*RAW*/>
+  required: @PolyMutable Set<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[177,23] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Immutable Set<@Mutable Entry<capture#096 [ extends E [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>>" to "@Mutable Set</*RAW TYPE ARGUMENT:*/ ? [ extends @Mutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[346,35] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Predicate<capture#094 extends @Readonly Object super E extends @Readonly Object>
+  required: @ReceiverDependentMutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[346,35] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Predicate<capture#094 extends @Readonly Object super E extends @Readonly Object> <: @ReceiverDependentMutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+  use of T from checkNotNull(predicate) <: @ReceiverDependentMutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(predicate) -> @ReceiverDependentMutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(predicate)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[351,53] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter retainIfTrue of Iterators.filter.
+  found   : @PICOLost Predicate<capture#097 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[356,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Sets.filter.
+  found   : @ReceiverDependentMutable Predicate<capture#098 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Predicate<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[396,27] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to add(E,int) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Multiset<E extends @Readonly Object>
+  required: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[405,52] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove(@org.checkerframework.checker.pico.qual.Readonly java.lang.Object,int) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Multiset<E extends @Readonly Object>
+  required: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[479,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[485,37] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[542,37] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[614,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[620,37] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[692,37] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[867,33] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#099 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[906,25] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Multiset<capture#0100 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[931,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter iterable of Multisets.cast.
+  found   : @Readonly Collection<capture#0101 extends E extends @Readonly Object>
+  required: @Mutable Iterable<capture#0101 extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[944,25] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to forEachEntry(java.util.function.ObjIntConsumer<? super E>) not allowed on the given receiver.
+  found   : @Readonly Multiset<? extends E extends @Readonly Object>
+  required: @PICOLost Multiset<capture#0102 extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[952,15] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<capture#0103 [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable Multiset<capture#0104 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[963,15] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Collection<capture#0105 [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable Multiset<capture#0106 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[1020,21] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to multiset() not allowed on the given receiver.
+  found   : @Readonly ElementSet<E extends @Readonly Object>
+  required: @PICOLost ElementSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[1025,21] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to multiset() not allowed on the given receiver.
+  found   : @Readonly ElementSet<E extends @Readonly Object>
+  required: @PICOLost ElementSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[1030,21] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to multiset() not allowed on the given receiver.
+  found   : @Readonly ElementSet<E extends @Readonly Object>
+  required: @PICOLost ElementSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[1043,21] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to multiset() not allowed on the given receiver.
+  found   : @Readonly ElementSet<E extends @Readonly Object>
+  required: @PICOLost ElementSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[1063,28] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to multiset() not allowed on the given receiver.
+  found   : @Readonly EntrySet<E extends @Readonly Object>
+  required: @PICOLost EntrySet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[1082,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of Multiset.setCount.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[1096,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of MultisetIteratorImpl constructor.
+  found   : @Readonly Multiset<E extends @Readonly Object>
+  required: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[1130,41] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly Entry<E extends @Readonly Object>
+  required: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[1193,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter c of Arrays.sort.
+  found   : @Immutable DecreasingCount
+  required: @Mutable Comparator<? extends @Readonly Object super @Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multisets.java:[1231,23] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to elementSet() not allowed on the given receiver.
+  found   : @Readonly ViewMultiset<E extends @Readonly Object>
+  required: @PICOLost AbstractMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMultiset.java:[92,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<E extends @Readonly Object>
+  method return type: @ReceiverDependentMutable Set<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMultiset.java:[98,30] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<@Mutable Entry<E extends @Readonly Object>>
+  method return type: @ReceiverDependentMutable Set<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMultiset.java:[133,17] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of ForwardingMultiset.count.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMultiset.java:[173,7] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to add(E,int) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable ForwardingMultiset<E extends @Readonly Object>
+  required: @Mutable ForwardingMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMultiset.java:[187,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter self of Multisets.addAllImpl.
+  found   : @ReceiverDependentMutable ForwardingMultiset<E extends @Readonly Object>
+  required: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMultiset.java:[199,17] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove(java.lang.Object,int) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable ForwardingMultiset<E extends @Readonly Object>
+  required: @Mutable ForwardingMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMultiset.java:[199,18] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of ForwardingMultiset.remove.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMultiset.java:[211,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter self of Multisets.removeAllImpl.
+  found   : @ReceiverDependentMutable ForwardingMultiset<E extends @Readonly Object>
+  required: @Mutable Multiset<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMultiset.java:[223,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter self of Multisets.retainAllImpl.
+  found   : @ReceiverDependentMutable ForwardingMultiset<E extends @Readonly Object>
+  required: @Mutable Multiset<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[130,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Immutable EntryFunction" to "@Mutable Function</*RAW TYPE ARGUMENT:*/ ? [ extends @Readonly Object super @PICOBottom NullType ], /*RAW TYPE ARGUMENT:*/ ? [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[135,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Immutable EntryFunction" to "@Mutable Function</*RAW TYPE ARGUMENT:*/ ? [ extends @Readonly Object super @PICOBottom NullType ], /*RAW TYPE ARGUMENT:*/ ? [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[179,80] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@Readonly Entry<K extends @Immutable Enum<K extends @Immutable Enum<K>>, capture#0117 extends V extends @Immutable Object>>
+  required: @Readonly Iterator<? extends @Mutable Entry<K extends @Immutable Enum<K extends @Immutable Enum<K>>, ? extends V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[274,38] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter m of HashMap constructor.
+  found   : @PolyMutable Map<capture#0118 extends K extends @Immutable Object, capture#0119 extends V extends @Readonly Object>
+  required: @Mutable Map<? extends K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[493,45] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Map<capture#0120 [ extends K [ extends @Immutable Object super @PICOBottom NullType ] super @PICOBottom NullType ], capture#0121 [ extends V [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" to "@Mutable SortedMap<K [ extends @Immutable Object super @PICOBottom NullType ], capture#0122 [ extends V [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[562,17] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter left of Maps.doDifference.
+  found   : @Readonly Map<capture#0123 extends K extends @Immutable Object, capture#0124 extends V extends @Readonly Object>
+  required: @Mutable Map<? extends K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[562,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter right of Maps.doDifference.
+  found   : @Readonly Map<capture#0125 extends K extends @Immutable Object, capture#0126 extends V extends @Readonly Object>
+  required: @Mutable Map<? extends K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[563,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable MapDifferenceImpl<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable MapDifference<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[588,64] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Comparator<capture#0127 extends @Readonly Object super K extends @Immutable Object>
+  required: @Readonly Comparator<? extends @Immutable Object super K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[607,17] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter left of Maps.doDifference.
+  found   : @Readonly SortedMap<K extends @Immutable Object, capture#0128 extends V extends @Readonly Object>
+  required: @Mutable Map<? extends K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[607,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter right of Maps.doDifference.
+  found   : @Readonly Map<capture#0129 extends K extends @Immutable Object, capture#0130 extends V extends @Readonly Object>
+  required: @Mutable Map<? extends K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[608,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable SortedMapDifferenceImpl<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable SortedMapDifference<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[648,47] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Map<K [ extends @Immutable Object super @PICOBottom NullType ], capture#0131 [ extends V [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" to "@Mutable SortedMap<K [ extends @Immutable Object super @PICOBottom NullType ], capture#0132 [ extends V [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[656,30] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.implements.clause] Class with annotation @Immutable cannot implement @Mutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[718,27] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to entriesOnlyOnLeft() not allowed on the given receiver.
+  found   : @Readonly MapDifferenceImpl<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Immutable MapDifferenceImpl<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[718,49] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to entriesOnlyOnRight() not allowed on the given receiver.
+  found   : @Readonly MapDifferenceImpl<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Immutable MapDifferenceImpl<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[718,68] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to entriesInCommon() not allowed on the given receiver.
+  found   : @Readonly MapDifferenceImpl<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Immutable MapDifferenceImpl<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[718,88] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to entriesDiffering() not allowed on the given receiver.
+  found   : @Readonly MapDifferenceImpl<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Immutable MapDifferenceImpl<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[744,46] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.implements.clause] Class with annotation @Immutable cannot implement @Mutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[750,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ValueDifferenceImpl<V extends @Readonly Object>
+  method return type: @Mutable ValueDifference<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[796,68] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.implements.clause] Class with annotation @Immutable cannot implement @Mutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[939,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Function<capture#0109 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[939,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Function<capture#0109 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object> <: @ReceiverDependentMutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  use of T from checkNotNull(function) <: @ReceiverDependentMutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(function) -> @ReceiverDependentMutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(function)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[944,26] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<K extends @Immutable Object>
+  method return type: @PolyMutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[944,37] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Maps.removeOnlySet.
+  found   : @PolyMutable Set<K extends @Immutable Object>
+  required: @Mutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[949,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Collection<V extends @Readonly Object>
+  method return type: @PolyMutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[949,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromCollection of Collections2.transform.
+  found   : @PolyMutable Set<K extends @Immutable Object>
+  required: @Mutable Collection<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[949,41] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Collections2.transform.
+  found   : @PolyMutable Function<capture#0133 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[973,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[983,29] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove(java.lang.Object) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Set<K extends @Immutable Object>
+  required: @Mutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[985,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[994,24] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Set<K extends @Immutable Object>
+  required: @Mutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1011,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable AsMapView<K extends @Immutable Object, V extends @Readonly Object>.@Mutable EntrySetImpl
+  method return type: @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1027,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1042,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Set<K [ extends @Immutable Object super @PICOBottom NullType ]>" to "@Mutable SortedSet<K [ extends @Immutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1042,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedSet<K extends @Immutable Object>
+  method return type: @PolyMutable SortedSet<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1053,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+  method return type: @PolyMutable Set<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1053,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Maps.removeOnlySortedSet.
+  found   : @PolyMutable SortedSet<K extends @Immutable Object>
+  required: @Mutable SortedSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1058,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Maps.asMap.
+  found   : @PolyMutable Function<capture#0134 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1063,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Maps.asMap.
+  found   : @PolyMutable Function<capture#0135 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1068,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Maps.asMap.
+  found   : @PolyMutable Function<capture#0136 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1099,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Function<capture#0110 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1099,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Function<capture#0110 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object> <: @ReceiverDependentMutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  use of T from checkNotNull(vFunction) <: @ReceiverDependentMutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(vFunction) -> @ReceiverDependentMutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(vFunction)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1109,75] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Maps.asMap.
+  found   : @PolyMutable Function<capture#0137 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1114,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Maps.asMap.
+  found   : @PolyMutable Function<capture#0138 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1119,52] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Maps.asMap.
+  found   : @PolyMutable Function<capture#0139 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1139,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1140,29] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to apply(F) not allowed on the given receiver.
+  found   : @PICOLost Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Function<capture#0140 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1153,37] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Maps.asMapEntryIterator.
+  found   : @PolyMutable Function<capture#0141 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1158,36] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<@Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Spliterator<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1158,36] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CollectSpliterators.map
+  unsatisfiable constraint: @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1173,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+  method return type: @PolyMutable NavigableSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1173,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Maps.removeOnlyNavigableSet.
+  found   : @PolyMutable NavigableSet<K extends @Immutable Object>
+  required: @Mutable NavigableSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1183,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Maps.asMap.
+  found   : @PolyMutable Function<capture#0142 extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1541,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Readonly <anonymous com.google.common.collect.Maps$8> <init>() not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1549,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1549,51] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Readonly Iterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Iterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1571,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Iterator<@Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1571,55] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryIterator of Maps.unmodifiableEntryIterator.
+  found   : @Mutable Iterator<@Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Readonly Iterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1586,39] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly Object @Immutable []
+  required: @Mutable Object @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1587,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Object @Immutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1593,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of ForwardingCollection.standardToArray.
+  found   : T extends @Readonly Object @Mutable []
+  required: T extends @Readonly Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1643,119] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.extends.clause] Class with annotation @ReceiverDependentMutable cannot extend @Mutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1646,64] [[immutability, pico, piconoinit, allcheckers]:super.invocation.invalid] Constructor of type @ReceiverDependentMutable cannot call super() of type @Mutable.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1670,36] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable BiMapConverter<capture#0143 [ extends @Immutable Object super @PICOBottom NullType ], capture#0144 [ extends @Immutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1737,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  method return type: @Mutable BiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1821,20] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable UnmodifiableBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[1829,39] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable UnmodifiableBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2241,37] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable EntryTransformer<capture#0111 extends @Immutable Object super K extends @Immutable Object, capture#0112 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @ReceiverDependentMutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2241,37] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable EntryTransformer<capture#0111 extends @Immutable Object super K extends @Immutable Object, capture#0112 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object> <: @ReceiverDependentMutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  use of T from checkNotNull(transformer) <: @ReceiverDependentMutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(transformer) -> @ReceiverDependentMutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(transformer)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2268,41] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to transformEntry(K,V1) not allowed on the given receiver.
+  found   : @PICOLost EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @PICOLost EntryTransformer<capture#0145 extends @Immutable Object super K extends @Immutable Object, capture#0146 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2268,42] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2280,39] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2296,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Iterator<@Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+  method return type: @Mutable Iterator<@PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2296,32] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Iterators.transform
+  unsatisfiable constraint: @PolyMutable Entry<K extends @Immutable Object, V1 extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  use of F from Iterators.transform(fromMap.entrySet().iterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer)) <: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  From complementary bound.: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object> <= inference type: ? super F
+  @Mutable Function<@Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>, @Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>> <: inference type: com.google.common.base.Function<? super F,? extends T>
+  @Mutable Function<@Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>, @Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>> -> inference type: com.google.common.base.Function<? super F,? extends T>
+  Maps.<K, V1, V2>asEntryToEntryFunction(transformer) -> inference type: com.google.common.base.Function<? super F,? extends T>
+  From: Argument constraint
+  @Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object> <: @PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+  use of T from Iterators.transform(fromMap.entrySet().iterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer)) <: @PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+  From complementary bound.: use of T from Iterators.transform(fromMap.entrySet().iterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer)) <= @PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+  inference type: java.util.Iterator<T> <: @Mutable Iterator<@PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+  inference type: java.util.Iterator<T> -> @Mutable Iterator<@PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:Iterators.transform(fromMap.entrySet().iterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer))
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2302,36] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+  method return type: @Mutable Spliterator<@PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2302,36] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CollectSpliterators.map
+  unsatisfiable constraint: @PolyMutable Entry<K extends @Immutable Object, V1 extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  use of InElementT from CollectSpliterators.map(fromMap.entrySet().spliterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer)) <: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  From complementary bound.: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object> <= inference type: ? super InElementT
+  @Mutable Function<@Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>, @Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>> <: inference type: java.util.function.Function<? super InElementT,? extends OutElementT>
+  @Mutable Function<@Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>, @Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>> -> inference type: java.util.function.Function<? super InElementT,? extends OutElementT>
+  Maps.<K, V1, V2>asEntryToEntryFunction(transformer) -> inference type: java.util.function.Function<? super InElementT,? extends OutElementT>
+  From: Argument constraint
+  @Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object> <: @PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+  use of OutElementT from CollectSpliterators.map(fromMap.entrySet().spliterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer)) <: @PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+  From complementary bound.: use of OutElementT from CollectSpliterators.map(fromMap.entrySet().spliterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer)) <= @PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+  inference type: java.util.Spliterator<OutElementT> <: @Mutable Spliterator<@PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+  inference type: java.util.Spliterator<OutElementT> -> @Mutable Spliterator<@PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:CollectSpliterators.map(fromMap.entrySet().spliterator(), Maps.<K, V1, V2>asEntryToEntryFunction(transformer))
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2347,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedMap<K extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @PolyMutable SortedMap<K extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2347,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformEntries.
+  found   : @PolyMutable SortedMap<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable SortedMap<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2347,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter transformer of Maps.transformEntries.
+  found   : @PolyMutable EntryTransformer<capture#0147 extends @Immutable Object super K extends @Immutable Object, capture#0148 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2358,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedMap<K extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @PolyMutable SortedMap<K extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2358,46] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformEntries.
+  found   : @PolyMutable SortedMap<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable SortedMap<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2358,64] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter transformer of Maps.transformEntries.
+  found   : @PolyMutable EntryTransformer<capture#0149 extends @Immutable Object super K extends @Immutable Object, capture#0150 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2363,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedMap<K extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @PolyMutable SortedMap<K extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2363,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformEntries.
+  found   : @PolyMutable SortedMap<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable SortedMap<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2363,58] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter transformer of Maps.transformEntries.
+  found   : @PolyMutable EntryTransformer<capture#0151 extends @Immutable Object super K extends @Immutable Object, capture#0152 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2381,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of TransformedEntriesNavigableMap.transformEntry.
+  found   : @PolyMutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2397,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableMap<K extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2397,53] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformEntries.
+  found   : @PolyMutable NavigableMap<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2397,57] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter transformer of Maps.transformEntries.
+  found   : @PolyMutable EntryTransformer<capture#0153 extends @Immutable Object super K extends @Immutable Object, capture#0154 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2403,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of TransformedEntriesNavigableMap.transformEntry.
+  found   : @PolyMutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2409,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of TransformedEntriesNavigableMap.transformEntry.
+  found   : @PolyMutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2425,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableMap<K extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2425,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformEntries.
+  found   : @PolyMutable NavigableMap<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2425,67] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter transformer of Maps.transformEntries.
+  found   : @PolyMutable EntryTransformer<capture#0155 extends @Immutable Object super K extends @Immutable Object, capture#0156 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2431,49] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of TransformedEntriesNavigableMap.transformEntry.
+  found   : @PolyMutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2443,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of TransformedEntriesNavigableMap.transformEntry.
+  found   : @PolyMutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2449,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of TransformedEntriesNavigableMap.transformEntry.
+  found   : @PolyMutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2482,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableMap<K extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2483,26] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformEntries.
+  found   : @PolyMutable NavigableMap<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2483,72] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter transformer of Maps.transformEntries.
+  found   : @PolyMutable EntryTransformer<capture#0157 extends @Immutable Object super K extends @Immutable Object, capture#0158 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2498,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableMap<K extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2498,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformEntries.
+  found   : @PolyMutable NavigableMap<K extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2498,69] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter transformer of Maps.transformEntries.
+  found   : @PolyMutable EntryTransformer<capture#0159 extends @Immutable Object super K extends @Immutable Object, capture#0160 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2503,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @PolyMutable Entry<K extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2503,58] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter transformer of Maps.transformEntry.
+  found   : @PolyMutable EntryTransformer<capture#0161 extends @Immutable Object super K extends @Immutable Object, capture#0162 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable EntryTransformer<? extends @Immutable Object super K extends @Immutable Object, ? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2508,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable SortedMap<K [ extends @Immutable Object super @PICOBottom NullType ], V1 [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable NavigableMap<K [ extends @Immutable Object super @PICOBottom NullType ], V1 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2508,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableMap<K extends @Immutable Object, V1 extends @Readonly Object>
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2970,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Predicate<capture#0163 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2977,12] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2978,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter input of Predicate.apply.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  required: capture#0164 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[2999,49] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to apply(@org.checkerframework.checker.pico.qual.Readonly java.lang.Object,V) not allowed on the given receiver.
+  found   : @Readonly AbstractFilteredMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost AbstractFilteredMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3006,38] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to apply(@org.checkerframework.checker.pico.qual.Readonly java.lang.Object,V) not allowed on the given receiver.
+  found   : @Readonly AbstractFilteredMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost AbstractFilteredMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3023,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of FilteredMapValues constructor.
+  found   : @PolyMutable Map<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3023,68] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of FilteredMapValues constructor.
+  found   : @PolyMutable Predicate<capture#0165 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3037,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Map<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3038,27] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Predicate<capture#0166 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3042,116] [[immutability, pico, piconoinit, allcheckers]:type.anno.before.decl.anno] write type annotations [@Readonly] immediately before type, after declaration annotation @CheckForNull
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3083,83] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of FilteredMapValues.
+  found   : K extends @PolyMutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3085,55] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @Mutable []
+  method return type: @PolyMutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3105,26] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Predicate<capture#0167 extends @Readonly Object super K extends @Immutable Object>
+  required: @ReceiverDependentMutable Predicate<? extends @Readonly Object super K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3110,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3110,24] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Sets.filter
+  unsatisfiable constraint: @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  use of E from Sets.filter(unfiltered.entrySet(), predicate) <: capture#0113 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: capture#0113 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> <= inference type: ? super E
+  @PolyMutable Predicate<capture#0113 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>> <: inference type: com.google.common.base.Predicate<? super E>
+  @PolyMutable Predicate<capture#0113 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>> -> inference type: com.google.common.base.Predicate<? super E>
+  predicate -> inference type: com.google.common.base.Predicate<? super E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3115,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<K extends @Immutable Object>
+  method return type: @PolyMutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3115,46] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Sets.filter.
+  found   : @PolyMutable Predicate<capture#0168 extends @Readonly Object super K extends @Immutable Object>
+  required: @Mutable Predicate<? extends @Readonly Object super K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3124,62] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to apply(T) not allowed on the given receiver.
+  found   : @PICOLost Predicate<? extends @Readonly Object super K extends @Immutable Object>
+  required: @PICOLost Predicate<capture#0169 extends @Readonly Object super K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3124,63] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3138,24] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of AbstractFilteredMap constructor.
+  found   : @Mutable Predicate<capture#0170 extends @Readonly Object super @ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3139,36] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<@ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Set<@ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3139,36] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Sets.filter
+  unsatisfiable constraint: @ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  use of E from Sets.filter(unfiltered.entrySet(), predicate) <: capture#0114 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: capture#0114 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> <= inference type: ? super E
+  @ReceiverDependentMutable Predicate<capture#0114 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>> <: inference type: com.google.common.base.Predicate<? super E>
+  @ReceiverDependentMutable Predicate<capture#0114 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>> -> inference type: com.google.common.base.Predicate<? super E>
+  predicate -> inference type: com.google.common.base.Predicate<? super E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3144,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable FilteredEntryMap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable EntrySet
+  method return type: @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3153,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Set<@Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3216,30] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of KeySet constructor.
+  found   : @Mutable FilteredEntryMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3241,53] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Object @Mutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3263,24] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryPredicate of FilteredEntryMap constructor.
+  found   : @Mutable Predicate<capture#0171 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3277,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable FilteredEntrySortedMap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable SortedKeySet
+  method return type: @PolyMutable SortedSet<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3293,15] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Set<K [ extends @Immutable Object super @PICOBottom NullType ]>" to "@PolyMutable SortedSet<K [ extends @Immutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3298,15] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Set<K [ extends @Immutable Object super @PICOBottom NullType ]>" to "@PolyMutable SortedSet<K [ extends @Immutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3303,15] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Set<K [ extends @Immutable Object super @PICOBottom NullType ]>" to "@PolyMutable SortedSet<K [ extends @Immutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3340,17] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to apply(@org.checkerframework.checker.pico.qual.Readonly java.lang.Object,V) not allowed on the given receiver.
+  found   : @Readonly FilteredEntrySortedMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost AbstractFilteredMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3349,83] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryPredicate of FilteredEntrySortedMap constructor.
+  found   : @PolyMutable Predicate<capture#0172 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3354,91] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryPredicate of FilteredEntrySortedMap constructor.
+  found   : @PolyMutable Predicate<capture#0173 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3359,85] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryPredicate of FilteredEntrySortedMap constructor.
+  found   : @PolyMutable Predicate<capture#0174 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3381,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Predicate<capture#0175 extends @Readonly Object super @ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Predicate<? extends @Readonly Object super @ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3382,30] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable FilteredEntryMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3382,53] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of FilteredEntryMap constructor.
+  found   : @ReceiverDependentMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3382,65] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryPredicate of FilteredEntryMap constructor.
+  found   : @Mutable Predicate<capture#0176 extends @Readonly Object super @ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3393,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+  method return type: @PolyMutable NavigableSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3393,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of  constructor.
+  found   : @PolyMutable FilteredEntryNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3408,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of FilteredMapValues constructor.
+  found   : @PolyMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3408,68] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of FilteredMapValues constructor.
+  found   : @PolyMutable Predicate<capture#0177 extends @Readonly Object super @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3413,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Iterator<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3413,64] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter retainIfTrue of Iterators.filter.
+  found   : @PolyMutable Predicate<capture#0178 extends @Readonly Object super @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3418,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Iterator<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3418,80] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter retainIfTrue of Iterators.filter.
+  found   : @PolyMutable Predicate<capture#0179 extends @Readonly Object super @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3428,27] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Iterables.any
+  unsatisfiable constraint: @PICOLost Entry<K extends @Immutable Object, V extends @Readonly Object> <: @PICOLost Entry<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from Iterables.any(unfiltered.entrySet(), entryPredicate) <: capture#0115 extends @Readonly Object super @PICOLost Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: capture#0115 extends @Readonly Object super @PICOLost Entry<K extends @Immutable Object, V extends @Readonly Object> <= inference type: ? super T
+  @PICOLost Predicate<capture#0115 extends @Readonly Object super @PICOLost Entry<K extends @Immutable Object, V extends @Readonly Object>> <: inference type: com.google.common.base.Predicate<? super T>
+  @PICOLost Predicate<capture#0115 extends @Readonly Object super @PICOLost Entry<K extends @Immutable Object, V extends @Readonly Object>> -> inference type: com.google.common.base.Predicate<? super T>
+  entryPredicate -> inference type: com.google.common.base.Predicate<? super T>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3483,26] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3483,51] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of Maps.filterEntries.
+  found   : @PolyMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3483,55] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryPredicate of Maps.filterEntries.
+  found   : @PolyMutable Predicate<capture#0180 extends @Readonly Object super @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3493,26] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3494,27] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of Maps.filterEntries.
+  found   : @PolyMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3494,73] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryPredicate of Maps.filterEntries.
+  found   : @PolyMutable Predicate<capture#0181 extends @Readonly Object super @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3499,26] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3499,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of Maps.filterEntries.
+  found   : @PolyMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3499,65] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryPredicate of Maps.filterEntries.
+  found   : @PolyMutable Predicate<capture#0182 extends @Readonly Object super @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3504,26] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3504,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of Maps.filterEntries.
+  found   : @PolyMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3504,67] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryPredicate of Maps.filterEntries.
+  found   : @PolyMutable Predicate<capture#0183 extends @Readonly Object super @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3519,59] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter input of Predicate.apply.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object>
+  required: capture#0184 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3527,97] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of FilteredEntryBiMap constructor.
+  found   : @Mutable Predicate<@Mutable Entry<V extends @Immutable Object, K extends @Immutable Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @ReceiverDependentMutable Entry<V extends @Immutable Object, K extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3527,98] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter forwardPredicate of FilteredEntryBiMap.inversePredicate.
+  found   : @Mutable Predicate<capture#0185 extends @Readonly Object super @ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+  required: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3552,53] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter input of Predicate.apply.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object>
+  required: capture#0186 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3595,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3602,27] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3612,22] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly NavigableMap<K extends @Immutable Object, capture#0187 extends V extends @Readonly Object>
+  required: @Immutable NavigableMap<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3617,22] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly NavigableMap<K extends @Immutable Object, capture#0188 extends V extends @Readonly Object>
+  required: @Immutable NavigableMap<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3618,27] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly UnmodifiableNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Immutable UnmodifiableNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3629,51] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of Maps.unmodifiableOrNull.
+  found   : @Immutable Entry<K extends @Immutable Object, capture#0189 extends V extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3641,51] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of Maps.unmodifiableOrNull.
+  found   : @Immutable Entry<K extends @Immutable Object, capture#0190 extends V extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3653,53] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of Maps.unmodifiableOrNull.
+  found   : @Immutable Entry<K extends @Immutable Object, capture#0191 extends V extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3665,52] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of Maps.unmodifiableOrNull.
+  found   : @Immutable Entry<K extends @Immutable Object, capture#0192 extends V extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3677,51] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of Maps.unmodifiableOrNull.
+  found   : @Immutable Entry<K extends @Immutable Object, capture#0193 extends V extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3683,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of Maps.unmodifiableOrNull.
+  found   : @Immutable Entry<K extends @Immutable Object, capture#0194 extends V extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3755,26] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable UnmodifiableNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3786,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Maps.unmodifiableNavigableMap.
+  found   : @Immutable NavigableMap<K extends @Immutable Object, capture#0195 extends V extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3796,59] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Maps.unmodifiableNavigableMap.
+  found   : @Immutable NavigableMap<K extends @Immutable Object, capture#0196 extends V extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3806,59] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Maps.unmodifiableNavigableMap.
+  found   : @Immutable NavigableMap<K extends @Immutable Object, capture#0197 extends V extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3884,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Readonly Set<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3885,30] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable Set<@Readonly Entry<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @PolyMutable Set<@PolyMutable Entry<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3885,41] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable ViewCachingAbstractMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3898,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable KeySet<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3898,26] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of KeySet constructor.
+  found   : @PolyMutable ViewCachingAbstractMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3931,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable Set<@PolyMutable Entry<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Set<@PolyMutable Entry<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3931,47] [[immutability, pico, piconoinit, allcheckers]:constructor.return.invalid] Invalid constructor return type: @Mutable IteratorBasedAbstractMap<K extends @Immutable Object, V extends @Readonly Object>.@PolyMutable <anonymous com.google.common.collect.Maps$IteratorBasedAbstractMap$1>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[3955,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter action of Iterator.forEachRemaining.
+  found   : @Mutable Consumer<capture#0198 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Consumer<? extends @Readonly Object super @ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4033,40] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@PolyMutable Entry<capture#0199 [ extends @Immutable Object super @PICOBottom NullType ], capture#0200 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4051,38] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@PolyMutable Entry<capture#0201 [ extends @Immutable Object super @PICOBottom NullType ], capture#0202 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4059,20] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Map<capture#0203 [ extends @Immutable Object super @PICOBottom NullType ], capture#0204 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4351,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter c of AbstractCollection.retainAll.
+  found   : @Readonly Collection<capture#0116 extends @Readonly Object>
+  required: @Mutable Collection<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4351,43] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Readonly Collection<capture#0116 extends @Readonly Object> <: @Mutable Collection<? extends @Readonly Object>
+  use of T from checkNotNull(c) <: @Mutable Collection<? extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(c) -> @Mutable Collection<? extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(c)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4402,28] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#0205 [ extends @Immutable Object super @PICOBottom NullType ], capture#0206 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4422,28] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#0207 [ extends @Immutable Object super @PICOBottom NullType ], capture#0208 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4444,68] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Sets.newHashSetWithExpectedSize
+  unsatisfiable constraint: @Mutable Object <: @Immutable Object
+  use of E from Sets.newHashSetWithExpectedSize(c.size()) = @Mutable Object
+  From complementary bound.: use of E from Sets.newHashSetWithExpectedSize(c.size()) <= @Mutable Object
+  inference type: java.util.HashSet<E> <: @Readonly Set<@Mutable Object>
+  inference type: java.util.HashSet<E> -> @Readonly Set<@Mutable Object>
+  From: Constraint between method call type and target type for method call:Sets.newHashSetWithExpectedSize(c.size())
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4451,32] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#0209 [ extends @Immutable Object super @PICOBottom NullType ], capture#0210 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4452,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of Set.add.
+  found   : @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4483,28] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable DescendingMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4605,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable DescendingMap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable EntrySetImpl
+  method return type: @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4618,50] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableKeySet<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PolyMutable NavigableSet<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Maps.java:[4618,72] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of NavigableKeySet constructor.
+  found   : @PolyMutable DescendingMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractNavigableMap.java:[167,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableKeySet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable NavigableSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractNavigableMap.java:[167,38] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of NavigableKeySet constructor.
+  found   : @PolyMutable AbstractNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable NavigableMap<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/Converter.java:[251,46] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for NullnessCasts.uncheckedCastNullableTToT
+  unsatisfiable constraint: A extends @Readonly Object <: @Mutable Object
+  A extends @Readonly Object <: use of T from uncheckedCastNullableTToT(a)
+  From complementary bound.: A extends @Readonly Object -> use of T from uncheckedCastNullableTToT(a)
+  a -> use of T from uncheckedCastNullableTToT(a)
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/Converter.java:[256,47] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for NullnessCasts.uncheckedCastNullableTToT
+  unsatisfiable constraint: B extends @Readonly Object <: @Mutable Object
+  B extends @Readonly Object <: use of T from uncheckedCastNullableTToT(b)
+  From complementary bound.: B extends @Readonly Object -> use of T from uncheckedCastNullableTToT(b)
+  b -> use of T from uncheckedCastNullableTToT(b)
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMap.java:[180,26] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Maps.putAllImpl.
+  found   : @Readonly Map<capture#0211 extends K extends @Immutable Object, capture#0212 extends V extends @Readonly Object>
+  required: @Mutable Map<? extends K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMap.java:[233,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of KeySet constructor.
+  found   : @Mutable ForwardingMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMap.java:[263,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Values constructor.
+  found   : @Mutable ForwardingMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingMapEntry.java:[113,25] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#0213 [ extends @Immutable Object super @PICOBottom NullType ], capture#0214 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedMap.java:[128,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Comparable<@Mutable Object>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedMap.java:[128,59] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of Comparable.compareTo.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedMap.java:[130,65] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of Comparator.compare.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedMap.java:[130,69] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg1 of Comparator.compare.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedMap.java:[147,16] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of SortedMap.
+  found   : @Mutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedMap.java:[147,44] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable ForwardingSortedMap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedMap<@Mutable Object, V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[204,39] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for LinkedHashMultiset.create
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  capture#0215 extends E extends @Readonly Object <: use of E from LinkedHashMultiset.create(elements)
+  From complementary bound.: capture#0215 extends E extends @Readonly Object <= inference type: ? extends E
+  @Mutable Iterable<capture#0215 extends E extends @Readonly Object> <: inference type: java.lang.Iterable<? extends E>
+  @Mutable Iterable<capture#0215 extends E extends @Readonly Object> -> inference type: java.lang.Iterable<? extends E>
+  elements -> inference type: java.lang.Iterable<? extends E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[216,52] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for LinkedHashMultiset.create
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  use of E from LinkedHashMultiset.create() = E extends @Readonly Object
+  From complementary bound.: use of E from LinkedHashMultiset.create() <= E extends @Readonly Object
+  inference type: com.google.common.collect.LinkedHashMultiset<E> <: @Readonly Multiset<E extends @Readonly Object>
+  inference type: com.google.common.collect.LinkedHashMultiset<E> -> @Readonly Multiset<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:LinkedHashMultiset.create()
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[222,52] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for LinkedHashMultiset.create
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  use of E from LinkedHashMultiset.create() = E extends @Readonly Object
+  From complementary bound.: use of E from LinkedHashMultiset.create() <= E extends @Readonly Object
+  inference type: com.google.common.collect.LinkedHashMultiset<E> <: @Readonly Multiset<E extends @Readonly Object>
+  inference type: com.google.common.collect.LinkedHashMultiset<E> -> @Readonly Multiset<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:LinkedHashMultiset.create()
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[241,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable ImmutableMultiset<E extends @Readonly Object>.@Readonly <anonymous com.google.common.collect.ImmutableMultiset$1> <init>(@Immutable ImmutableMultiset<E extends @Readonly Object> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[241,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<E extends @Readonly Object>
+  method return type: @Immutable UnmodifiableIterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[253,45] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable Iterator<@Mutable Entry<E extends @Readonly Object>>
+  required: @Mutable Iterator<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[273,37] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ImmutableMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[375,36] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ImmutableMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[441,30] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSet<@Mutable Entry<E extends @Readonly Object>>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[448,30] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of SerializedForm constructor.
+  found   : @Immutable ImmutableMultiset<E extends @Readonly Object>
+  required: @Mutable Multiset<? extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[487,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter contents of Builder constructor.
+  found   : @Mutable LinkedHashMultiset<E extends @Immutable Object>
+  required: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[602,46] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for JdkBackedImmutableMultiset.create
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  E extends @Readonly Object <: use of E from JdkBackedImmutableMultiset.create(contents.entrySet())
+  From complementary bound.: E extends @Readonly Object <= inference type: ? extends E
+  @Mutable Entry<E extends @Readonly Object> <: inference type: com.google.common.collect.Multiset.Entry<? extends E>
+  @Mutable Entry<E extends @Readonly Object> <= inference type: ? extends com.google.common.collect.Multiset.Entry<? extends E>
+  @Mutable Set<@Mutable Entry<E extends @Readonly Object>> <: inference type: java.util.Collection<? extends com.google.common.collect.Multiset.Entry<? extends E>>
+  @Mutable Set<@Mutable Entry<E extends @Readonly Object>> -> inference type: java.util.Collection<? extends com.google.common.collect.Multiset.Entry<? extends E>>
+  contents.entrySet() -> inference type: java.util.Collection<? extends com.google.common.collect.Multiset.Entry<? extends E>>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[613,21] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable List<@Mutable Entry<E extends @Readonly Object>>
+  required: @Immutable List<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[614,22] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Multiset<E extends @Readonly Object>
+  required: @Immutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[658,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of AbstractMapBasedMultiset.add.
+  found   : @Mutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[660,37] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableMultiset<@Immutable Object>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMultiset.java:[660,37] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableMultiset.copyOf
+  unsatisfiable constraint: inference type: com.google.common.collect.ImmutableMultiset<E> <: @Mutable Object
+  inference type: com.google.common.collect.ImmutableMultiset<E> -> @Mutable Object
+  From: Constraint between method call type and target type for method call:ImmutableMultiset.copyOf(multiset)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/IndexedImmutableSet.java:[65,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable IndexedImmutableSet<E extends @Readonly Object>.@Readonly <anonymous com.google.common.collect.IndexedImmutableSet$1> <init>(@Immutable IndexedImmutableSet<E extends @Readonly Object> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/IndexedImmutableSet.java:[65,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly ImmutableList<E extends @Readonly Object>
+  method return type: @Immutable ImmutableList<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Multiset.java:[499,37] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of Multisets.spliteratorImpl.
+  found   : @Readonly Multiset<E extends @Readonly Object>
+  required: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ObjectArrays.java:[65,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter reference of Platform.newArray.
+  found   : T extends @Readonly Object @Readonly []
+  required: T extends @Readonly Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ObjectArrays.java:[138,14] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of ObjectArrays.fillArray.
+  found   : @Readonly Collection<capture#0216 extends @Readonly Object>
+  required: @Mutable Iterable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ObjectArrays.java:[138,17] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of ObjectArrays.fillArray.
+  found   : T extends @Readonly Object @Readonly []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ObjectArrays.java:[140,51] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : T extends @Readonly Object @Readonly []
+  required: @Mutable Object @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ObjectArrays.java:[141,6] [[immutability, pico, piconoinit, allcheckers]:illegal.array.write] Cannot write array via receiver: @Mutable Object @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ObjectArrays.java:[143,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: T extends @Readonly Object @Readonly []
+  method return type: T extends @Readonly Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ObjectArrays.java:[163,51] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : T extends @Readonly Object @Mutable []
+  required: @Mutable Object @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ObjectArrays.java:[204,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ObjectArrays.java:[226,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @Readonly []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ObjectArrays.java:[236,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableList.java:[43,82] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of RegularImmutableList constructor.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableList.java:[64,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Object @Immutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableList.java:[95,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of Iterators.forArray.
+  found   : @Mutable Object @Immutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableList.java:[100,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<E extends @Mutable Object>
+  method return type: @Mutable Spliterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[573,19] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable</*RAW*/> = use of C from create(newLower, newUpper)
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> <= use of C from create(newLower, newUpper)
+  @Immutable Cut<C extends @Readonly Comparable</*RAW*/>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable</*RAW*/>> -> inference type: com.google.common.collect.Cut<C>
+  newLower -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[614,17] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable</*RAW*/> = use of C from create(firstRange.upperBound, secondRange.lowerBound)
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> <= use of C from create(firstRange.upperBound, secondRange.lowerBound)
+  @Immutable Cut<C extends @Readonly Comparable</*RAW*/>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable</*RAW*/>> -> inference type: com.google.common.collect.Cut<C>
+  firstRange.upperBound -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[638,19] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable</*RAW*/> = use of C from create(newLower, newUpper)
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> <= use of C from create(newLower, newUpper)
+  @Immutable Cut<C extends @Readonly Comparable</*RAW*/>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable</*RAW*/>> -> inference type: com.google.common.collect.Cut<C>
+  newLower -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[670,71] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable</*RAW*/> = use of C from create(lower, upper)
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> <= use of C from create(lower, upper)
+  @Immutable Cut<C extends @Readonly Comparable</*RAW*/>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable</*RAW*/>> -> inference type: com.google.common.collect.Cut<C>
+  lower -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[714,16] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Range<@Mutable Comparable<? extends @Readonly Object>>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[714,16] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.all
+  unsatisfiable constraint: inference type: com.google.common.collect.Range<C> <: @Mutable Object
+  inference type: com.google.common.collect.Range<C> -> @Mutable Object
+  From: Constraint between method call type and target type for method call:all()
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[716,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Range<C extends @Readonly Comparable</*RAW*/>>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[732,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter left of ComparisonChain.compare.
+  found   : @Immutable Cut<capture#0219 extends @Readonly Comparable</*RAW*/>>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[732,41] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter right of ComparisonChain.compare.
+  found   : @Immutable Cut<capture#0220 extends @Readonly Comparable</*RAW*/>>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[733,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter left of ComparisonChain.compare.
+  found   : @Immutable Cut<capture#0217 extends @Readonly Comparable</*RAW*/>>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Range.java:[733,41] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter right of ComparisonChain.compare.
+  found   : @Immutable Cut<capture#0218 extends @Readonly Comparable</*RAW*/>>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Ordering.java:[256,19] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Ordering.explicit
+  unsatisfiable constraint: T extends @Readonly Object <: @Immutable Object
+  T extends @Readonly Object <: use of T from explicit(Lists.asList(leastValue, remainingValuesInOrder))
+  From complementary bound.: use of E from Lists.asList(leastValue, remainingValuesInOrder) = use of T from explicit(Lists.asList(leastValue, remainingValuesInOrder))
+  From complementary bound.: use of E from Lists.asList(leastValue, remainingValuesInOrder) <= use of T from explicit(Lists.asList(leastValue, remainingValuesInOrder))
+  inference type: java.util.List<E> <: inference type: java.util.List<T>
+  inference type: java.util.List<E> -> inference type: java.util.List<T>
+  From: Constraint between method call type and target type for method call:Lists.asList(leastValue, remainingValuesInOrder)
+  T extends @Readonly Object <: @Immutable Object
+  use of E from Lists.asList(leastValue, remainingValuesInOrder) <: @Immutable Object
+  From complementary bound.: use of E from Lists.asList(leastValue, remainingValuesInOrder) = use of T from explicit(Lists.asList(leastValue, remainingValuesInOrder))
+  From complementary bound.: use of E from Lists.asList(leastValue, remainingValuesInOrder) <= use of T from explicit(Lists.asList(leastValue, remainingValuesInOrder))
+  inference type: java.util.List<E> <: inference type: java.util.List<T>
+  inference type: java.util.List<E> -> inference type: java.util.List<T>
+  From: Constraint between method call type and target type for method call:Lists.asList(leastValue, remainingValuesInOrder)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Ordering.java:[305,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable UsingToStringOrdering
+  method return type: @Mutable Ordering<@Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Ordering.java:[346,46] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of ConcurrentMap.putIfAbsent.
+  found   : @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Ordering.java:[459,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ByFunctionOrdering constructor
+  unsatisfiable constraint: F extends @Readonly Object <: @Mutable Object
+  F extends @Readonly Object = use of F from new ByFunctionOrdering<>(function, this)
+  From complementary bound.: F extends @Readonly Object <= use of F from new ByFunctionOrdering<>(function, this)
+  @Mutable Function<F extends @Readonly Object, capture#0221 extends T extends @Readonly Object> <: inference type: com.google.common.base.Function<F,? extends T>
+  @Mutable Function<F extends @Readonly Object, capture#0221 extends T extends @Readonly Object> -> inference type: com.google.common.base.Function<F,? extends T>
+  function -> inference type: com.google.common.base.Function<F,? extends T>
+  From: Argument constraint
+  T extends @Readonly Object <: @Mutable Object
+  capture#0221 extends T extends @Readonly Object <: use of T from new ByFunctionOrdering<>(function, this)
+  From complementary bound.: capture#0221 extends T extends @Readonly Object <= inference type: ? extends T
+  @Mutable Function<F extends @Readonly Object, capture#0221 extends T extends @Readonly Object> <: inference type: com.google.common.base.Function<F,? extends T>
+  @Mutable Function<F extends @Readonly Object, capture#0221 extends T extends @Readonly Object> -> inference type: com.google.common.base.Function<F,? extends T>
+  function -> inference type: com.google.common.base.Function<F,? extends T>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Ordering.java:[463,21] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Ordering.onResultOf
+  unsatisfiable constraint: T2 extends T extends @Immutable Object <: T extends @Readonly Object
+  T2 extends T extends @Immutable Object <= ? extends T extends @Readonly Object
+  @Mutable Function<@Mutable Entry<T2 extends T extends @Immutable Object, ? extends @Readonly Object>, T2 extends T extends @Immutable Object> <: inference type: com.google.common.base.Function<F,? extends T>
+  @Mutable Function<@Mutable Entry<T2 extends T extends @Immutable Object, ? extends @Readonly Object>, T2 extends T extends @Immutable Object> -> inference type: com.google.common.base.Function<F,? extends T>
+  Maps.<T2>keyFunction() -> inference type: com.google.common.base.Function<F,? extends T>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Ordering.java:[757,43] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<E extends T extends @Readonly Object>
+  method return type: @Mutable List<E extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Ordering.java:[784,34] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<E extends T extends @Readonly Object>
+  method return type: @Mutable List<E extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Ordering.java:[793,41] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<E extends T extends @Readonly Object>
+  method return type: @Mutable List<E extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Cut.java:[187,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Comparable<capture#0222 extends @Readonly Object>
+  method return type: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Cut.java:[220,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable BelowAll
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Cut.java:[312,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable AboveAll
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DiscreteDomain.java:[110,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable IntegerDomain
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DiscreteDomain.java:[185,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable LongDomain
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DiscreteDomain.java:[239,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable BigIntegerDomain
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterables.java:[98,23] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableCollection<E extends @Readonly Object>
+  method return type: @Mutable Iterable<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterables.java:[98,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Immutable ImmutableCollection<E extends @Readonly Object> <: @Mutable Iterable<E extends @Readonly Object>
+  use of T from checkNotNull(iterable) <: @Mutable Iterable<E extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(iterable) -> @Mutable Iterable<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(iterable)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterables.java:[111,43] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<T extends @Readonly Object>
+  method return type: @Mutable Iterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterables.java:[318,51] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @Mutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterables.java:[342,34] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Iterable<capture#0223 [ extends T [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" to "@Mutable Collection<capture#0224 [ extends T [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterables.java:[548,34] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@Mutable List<T extends @Readonly Object>>
+  method return type: @Mutable Iterator<@Mutable List<T extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterables.java:[575,40] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@Mutable List<@org.checkerframework.checker.nullness.qual.Nullable T extends @Readonly Object>>
+  method return type: @Mutable Iterator<@Mutable List<@org.checkerframework.checker.nullness.qual.Nullable T extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterables.java:[593,31] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<T extends @Readonly Object>
+  method return type: @Mutable Iterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterables.java:[1029,14] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ConsumingQueueIterator constructor
+  unsatisfiable constraint: T extends @Readonly Object <: @Mutable Object
+  T extends @Readonly Object = use of T from new ConsumingQueueIterator<>((Queue<T>)iterable)
+  From complementary bound.: T extends @Readonly Object <= use of T from new ConsumingQueueIterator<>((Queue<T>)iterable)
+  @Mutable Queue<T extends @Readonly Object> <: inference type: java.util.Queue<T>
+  @Mutable Queue<T extends @Readonly Object> -> inference type: java.util.Queue<T>
+  (Queue<T>)iterable -> inference type: java.util.Queue<T>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterables.java:[1083,40] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<T extends @Readonly Object>
+  method return type: @Mutable Iterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FluentIterable.java:[323,55] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter iterable of FluentIterable.from.
+  found   : @Immutable List<E extends @Readonly Object>
+  required: @Mutable Iterable<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FluentIterable.java:[368,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of Iterables.contains.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FluentIterable.java:[720,21] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Maps.toMap
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  E extends @Readonly Object = use of K from Maps.toMap(getDelegate(), valueFunction)
+  From complementary bound.: E extends @Readonly Object <= use of K from Maps.toMap(getDelegate(), valueFunction)
+  @Mutable Iterable<E extends @Readonly Object> <: inference type: java.lang.Iterable<K>
+  @Mutable Iterable<E extends @Readonly Object> -> inference type: java.lang.Iterable<K>
+  getDelegate() -> inference type: java.lang.Iterable<K>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FluentIterable.java:[743,26] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Multimaps.index
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  E extends @Readonly Object = use of V from Multimaps.index(getDelegate(), keyFunction)
+  From complementary bound.: E extends @Readonly Object <= use of V from Multimaps.index(getDelegate(), keyFunction)
+  @Mutable Iterable<E extends @Readonly Object> <: inference type: java.lang.Iterable<V>
+  @Mutable Iterable<E extends @Readonly Object> -> inference type: java.lang.Iterable<V>
+  getDelegate() -> inference type: java.lang.Iterable<V>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FluentIterable.java:[843,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter parts of Joiner.join.
+  found   : @Mutable FluentIterable<E extends @Readonly Object>
+  required: @Mutable Iterable<? extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/io/MoreFiles.java:[311,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableList<@Mutable Path>
+  method return type: @Mutable Iterable<@Mutable Path>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/io/MoreFiles.java:[317,27] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableList<@Mutable Path>
+  method return type: @Mutable Iterable<@Mutable Path>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Serialization.java:[92,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Serialization.java:[183,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[151,36] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object> @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[152,36] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object> @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[174,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[190,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[200,11] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[206,11] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[215,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[216,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[219,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[220,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[223,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[224,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[226,35] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[228,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[228,58] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[230,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[232,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[234,35] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[236,13] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[236,64] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[238,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[240,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[242,13] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[242,64] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[276,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to seekByKey(@org.checkerframework.checker.pico.qual.Readonly java.lang.Object,int) not allowed on the given receiver.
+  found   : @Readonly HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @PICOLost HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[292,22] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to seekByValue(@org.checkerframework.checker.pico.qual.Readonly java.lang.Object,int) not allowed on the given receiver.
+  found   : @Readonly HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @PICOLost HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[298,37] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to seekByKey(@org.checkerframework.checker.pico.qual.Readonly java.lang.Object,int) not allowed on the given receiver.
+  found   : @Readonly HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @PICOLost HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[333,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[334,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[384,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[385,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[388,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[389,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[400,38] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object> @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[401,38] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object> @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[408,14] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to insert(@org.checkerframework.checker.pico.qual.Readonly com.google.common.collect.HashBiMap.BiEntry<K,V>,@org.checkerframework.checker.pico.qual.Readonly com.google.common.collect.HashBiMap.BiEntry<K,V>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[428,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[429,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[472,11] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>.@ReceiverDependentMutable Itr<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[473,15] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>.@ReceiverDependentMutable Itr<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[474,15] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>.@ReceiverDependentMutable Itr<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[502,21] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of KeySet constructor.
+  found   : @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[523,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[524,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[574,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[575,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[601,9] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[603,9] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to put(K,V) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[612,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable BiMap<V extends @Immutable Object, K extends @Immutable Object>
+  method return type: @Mutable BiMap<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[612,38] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[612,40] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @ReceiverDependentMutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>.@Mutable Inverse
+  required: @ReceiverDependentMutable BiMap<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[634,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to forward() not allowed on the given receiver.
+  found   : @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>.@ReceiverDependentMutable Inverse
+  required: @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>.@Mutable Inverse
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[664,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[665,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable BiEntry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[672,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to forward() not allowed on the given receiver.
+  found   : @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>.@ReceiverDependentMutable Inverse
+  required: @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>.@Mutable Inverse
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[710,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to forward() not allowed on the given receiver.
+  found   : @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>.@ReceiverDependentMutable Inverse
+  required: @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>.@Mutable Inverse
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[778,13] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for InverseSerializedForm constructor
+  unsatisfiable constraint: inference type: com.google.common.collect.HashBiMap.InverseSerializedForm<K,V> <: @Mutable Object
+  inference type: com.google.common.collect.HashBiMap.InverseSerializedForm<K,V> -> @Mutable Object
+  From: Constraint between method call type and target type for method call:new InverseSerializedForm<>(HashBiMap.this)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[789,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @ReceiverDependentMutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[803,27] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Serialization.writeMap.
+  found   : @ReceiverDependentMutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable Map<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[811,30] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Serialization.populateMap.
+  found   : @ReceiverDependentMutable HashBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable Map<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashBiMap.java:[818,80] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<@ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+  method return type: @Mutable Set<@Mutable Entry<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/hash/BloomFilter.java:[418,72] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter strategy of BloomFilter.create.
+  found   : @Immutable BloomFilterStrategies
+  required: @Mutable Strategy
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/hash/BloomFilter.java:[629,69] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter strategy of BloomFilter constructor.
+  found   : @Immutable Strategy
+  required: @Mutable Strategy
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/MoreObjects.java:[400,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of ToStringHelper.isEmpty.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/MoreObjects.java:[408,36] [[immutability, pico, piconoinit, allcheckers]:array.initializer.type.incompatible] incompatible types in array initializer.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableListMultimap.java:[420,39] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ImmutableListMultimap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableListMultimap.java:[429,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ImmutableListMultimap<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableListMultimap.java:[468,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Serialization.writeMultimap.
+  found   : @Immutable ImmutableListMultimap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableListMultimap.java:[492,18] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of Builder.put.
+  found   : @Mutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[118,83] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of TreeMultimap constructor.
+  found   : @PolyMutable Multimap<capture#0226 extends K extends @Immutable Comparable</*RAW*/>, capture#0227 extends V extends @Readonly Comparable</*RAW*/>>
+  required: @Mutable Multimap<? extends K extends @Immutable Comparable</*RAW*/>, ? extends V extends @Readonly Comparable</*RAW*/>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[132,10] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to putAll(com.google.common.collect.Multimap<? extends K,? extends V>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable TreeMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[137,36] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  method return type: @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[149,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for TreeSet constructor
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  use of E from new @PolyMutable TreeSet<>(valueComparator) = V extends @Readonly Object
+  From complementary bound.: use of E from new @PolyMutable TreeSet<>(valueComparator) <= V extends @Readonly Object
+  inference type: java.util.TreeSet<E> <: @PolyMutable SortedSet<V extends @Readonly Object>
+  inference type: java.util.TreeSet<E> -> @PolyMutable SortedSet<V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:new @PolyMutable TreeSet<>(valueComparator)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[194,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable SortedSet<K [ extends @Immutable Object super @PICOBottom NullType ]>" to "@Mutable NavigableSet<K [ extends @Immutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[194,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableSet<K extends @Immutable Object>
+  method return type: @PolyMutable NavigableSet<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[220,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Serialization.writeMultimap.
+  found   : @ReceiverDependentMutable TreeMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[227,18] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable TreeMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[228,20] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable TreeMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[229,10] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setMap(java.util.Map<K,java.util.Collection<V>>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable TreeMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultimap.java:[230,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Serialization.populateMultimap.
+  found   : @ReceiverDependentMutable TreeMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractRangeSet.java:[63,18] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C extends @Mutable Comparable<? extends @Readonly Object> of Range.all.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractRangeSet.java:[83,24] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter view of RangeSet.subRangeSet.
+  found   : @Readonly Range<C extends @Readonly Comparable</*RAW*/>>
+  required: @Immutable Range<C extends @Readonly Comparable</*RAW*/>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractRangeSet.java:[94,26] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable RangeSet<capture#0228 [ extends @Readonly Comparable</*RAW TYPE ARGUMENT:*/ ? [ extends @Readonly Object super @PICOBottom NullType ]> super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSequentialIterator.java:[49,80] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.extends.clause] Class with annotation @ReceiverDependentMutable cannot extend @Immutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSequentialIterator.java:[56,68] [[immutability, pico, piconoinit, allcheckers]:super.invocation.invalid] Constructor of type @ReceiverDependentMutable cannot call super() of type @Immutable.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSequentialIterator.java:[79,15] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AbstractSequentialIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/cache/AbstractCache.java:[42,59] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Cache.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/cache/AbstractCache.java:[67,22] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of ImmutableMap.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/cache/AbstractCache.java:[68,8] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Map.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/cache/AbstractCache.java:[68,44] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Maps.newLinkedHashMap
+  unsatisfiable constraint: K extends @Readonly Object <: @Immutable Object
+  use of K from Maps.newLinkedHashMap() = K extends @Readonly Object
+  From complementary bound.: use of K from Maps.newLinkedHashMap() <= K extends @Readonly Object
+  inference type: java.util.LinkedHashMap<K,V> <: @Readonly Map<K extends @Readonly Object, V extends @Readonly Object>
+  inference type: java.util.LinkedHashMap<K,V> -> @Readonly Map<K extends @Readonly Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:Maps.newLinkedHashMap()
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/cache/AbstractCache.java:[79,30] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableMap.copyOf
+  unsatisfiable constraint: K extends @Readonly Object <: @Immutable Object
+  K extends @Readonly Object <: use of K from ImmutableMap.copyOf(result)
+  From complementary bound.: K extends @Readonly Object <= inference type: ? extends K
+  @Mutable Map<K extends @Readonly Object, V extends @Readonly Object> <: inference type: java.util.Map<? extends K,? extends V>
+  @Mutable Map<K extends @Readonly Object, V extends @Readonly Object> -> inference type: java.util.Map<? extends K,? extends V>
+  result -> inference type: java.util.Map<? extends K,? extends V>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/cache/AbstractCache.java:[129,23] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of ConcurrentMap.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AbstractFuture.java:[1330,14] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING]   ; The Checker Framework crashed.  Please report the crash.  Version: Checker Framework 3.49.5-eisop1-SNAPSHOT, branch pico-move-lazy, 2025-10-29, commit 3261311, dirty=true. 
+  Checker: class org.checkerframework.checker.pico.PICONoInitSubchecker
+  Visitor: class org.checkerframework.checker.pico.PICONoInitVisitor
+  Compilation unit: /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AbstractFuture.java
+  Last visited tree at line 670 column 55:
+              ListenableFuture<?> futureToPropagateTo = ((SetFuture) localValue).future;
+  Exception: org.checkerframework.javacutil.BugInCF: Wildcard /*INFERENCE FAILED for:*/ ? extends @Mutable Object is not a type argument of @Mutable ListenableFuture</*RAW*/>; org.checkerframework.javacutil.BugInCF: Wildcard /*INFERENCE FAILED for:*/ ? extends @Mutable Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.getTypeParameterElement(PropagationTypeAnnotator.java:226)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:132)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedWildcardType.accept(AnnotatedTypeMirror.java:2423)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:158)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedWildcardType.accept(AnnotatedTypeMirror.java:2423)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:224)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scanAndReduce(AnnotatedTypeScanner.java:231)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visitDeclared(AnnotatedTypeScanner.java:277)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitDeclared(PropagationTypeAnnotator.java:112)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitDeclared(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedDeclaredType.accept(AnnotatedTypeMirror.java:1055)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:58)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:20)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.addComputedTypeAnnotations(GenericAnnotatedTypeFactory.java:2090)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.getAnnotatedType(AnnotatedTypeFactory.java:1508)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.getValueFromFactory(CFAbstractTransfer.java:225)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitFieldAccess(CFAbstractTransfer.java:796)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitFieldAccess(CFAbstractTransfer.java:106)
+  	at org.checkerframework.dataflow.cfg.node.FieldAccessNode.accept(FieldAccessNode.java:93)
+  	at org.checkerframework.dataflow.analysis.AbstractAnalysis.callTransferFunction(AbstractAnalysis.java:396)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.callTransferFunction(ForwardAnalysisImpl.java:402)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.callTransferFunction(CFAbstractAnalysis.java:246)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysisBlock(ForwardAnalysisImpl.java:157)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysis(ForwardAnalysisImpl.java:110)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.performAnalysis(CFAbstractAnalysis.java:155)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.analyze(GenericAnnotatedTypeFactory.java:1629)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.performFlowAnalysis(GenericAnnotatedTypeFactory.java:1518)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.checkAndPerformFlowAnalysis(GenericAnnotatedTypeFactory.java:2132)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.preProcessClassTree(GenericAnnotatedTypeFactory.java:452)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:631)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:197)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)
+  	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:60)
+  	at org.checkerframework.framework.source.SourceVisitor.visit(SourceVisitor.java:91)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1440)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1355)
+  	at org.checkerframework.javacutil.AbstractTypeProcessor$AttributionTaskListener.finished(AbstractTypeProcessor.java:193)
+  	at jdk.compiler/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:854)
+  	at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1394)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1351)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1492)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1408)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:946)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
+  	at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
+  	at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)
+  Caused by: java.lang.Throwable
+  	at org.checkerframework.javacutil.BugInCF.<init>(BugInCF.java:39)
+  	... 60 more
+  
+  Underlying Exception: java.lang.Throwable; java.lang.Throwable
+  	at org.checkerframework.javacutil.BugInCF.<init>(BugInCF.java:39)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.getTypeParameterElement(PropagationTypeAnnotator.java:226)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:132)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedWildcardType.accept(AnnotatedTypeMirror.java:2423)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:158)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedWildcardType.accept(AnnotatedTypeMirror.java:2423)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:224)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scanAndReduce(AnnotatedTypeScanner.java:231)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visitDeclared(AnnotatedTypeScanner.java:277)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitDeclared(PropagationTypeAnnotator.java:112)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitDeclared(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedDeclaredType.accept(AnnotatedTypeMirror.java:1055)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:58)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:20)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.addComputedTypeAnnotations(GenericAnnotatedTypeFactory.java:2090)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.getAnnotatedType(AnnotatedTypeFactory.java:1508)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.getValueFromFactory(CFAbstractTransfer.java:225)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitFieldAccess(CFAbstractTransfer.java:796)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitFieldAccess(CFAbstractTransfer.java:106)
+  	at org.checkerframework.dataflow.cfg.node.FieldAccessNode.accept(FieldAccessNode.java:93)
+  	at org.checkerframework.dataflow.analysis.AbstractAnalysis.callTransferFunction(AbstractAnalysis.java:396)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.callTransferFunction(ForwardAnalysisImpl.java:402)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.callTransferFunction(CFAbstractAnalysis.java:246)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysisBlock(ForwardAnalysisImpl.java:157)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysis(ForwardAnalysisImpl.java:110)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.performAnalysis(CFAbstractAnalysis.java:155)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.analyze(GenericAnnotatedTypeFactory.java:1629)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.performFlowAnalysis(GenericAnnotatedTypeFactory.java:1518)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.checkAndPerformFlowAnalysis(GenericAnnotatedTypeFactory.java:2132)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.preProcessClassTree(GenericAnnotatedTypeFactory.java:452)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:631)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:197)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)
+  	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:60)
+  	at org.checkerframework.framework.source.SourceVisitor.visit(SourceVisitor.java:91)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1440)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1355)
+  	at org.checkerframework.javacutil.AbstractTypeProcessor$AttributionTaskListener.finished(AbstractTypeProcessor.java:193)
+  	at jdk.compiler/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:854)
+  	at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1394)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1351)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1492)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1408)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:946)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
+  	at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
+  	at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)
+/Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/WrappingExecutorService.java:[116,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of ExecutorService.invokeAll.
+  found   : @Immutable ImmutableList<@Mutable Callable<T extends @Mutable Object>>
+  required: @Mutable Collection<? extends @Mutable Callable<T extends @Mutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/WrappingExecutorService.java:[123,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of ExecutorService.invokeAll.
+  found   : @Immutable ImmutableList<@Mutable Callable<T extends @Mutable Object>>
+  required: @Mutable Collection<? extends @Mutable Callable<T extends @Mutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/WrappingExecutorService.java:[129,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of ExecutorService.invokeAny.
+  found   : @Immutable ImmutableList<@Mutable Callable<T extends @Mutable Object>>
+  required: @Mutable Collection<? extends @Mutable Callable<T extends @Mutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/WrappingExecutorService.java:[136,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of ExecutorService.invokeAny.
+  found   : @Immutable ImmutableList<@Mutable Callable<T extends @Mutable Object>>
+  required: @Mutable Collection<? extends @Mutable Callable<T extends @Mutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[449,31] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<@Mutable List<B extends @Readonly Object>>
+  method return type: @Mutable List<@Readonly List<B extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[449,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter lists of CartesianList.create.
+  found   : @Mutable List<capture#0233 extends @Readonly List<? extends B extends @Readonly Object>>
+  required: @Immutable List<? extends @Mutable List<? extends B extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[546,8] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable List<T extends @Readonly Object>
+  method return type: @Mutable List<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[564,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Function<capture#0229 extends @Readonly Object super F extends @Readonly Object, capture#0230 extends T extends @Readonly Object>
+  required: @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[564,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Function<capture#0229 extends @Readonly Object super F extends @Readonly Object, capture#0230 extends T extends @Readonly Object> <: @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+  use of T from checkNotNull(function) <: @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(function) -> @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(function)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[618,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Function<capture#0231 extends @Readonly Object super F extends @Readonly Object, capture#0232 extends T extends @Readonly Object>
+  required: @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[618,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Function<capture#0231 extends @Readonly Object super F extends @Readonly Object, capture#0232 extends T extends @Readonly Object> <: @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+  use of T from checkNotNull(function) <: @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(function) -> @ReceiverDependentMutable Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(function)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[629,27] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to apply(F) not allowed on the given receiver.
+  found   : @PICOLost Function<? extends @Readonly Object super F extends @Readonly Object, ? extends T extends @Readonly Object>
+  required: @PICOLost Function<capture#0234 extends @Readonly Object super F extends @Readonly Object, capture#0235 extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[712,25] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to subList(int,int) not allowed on the given receiver.
+  found   : @PICOLost List<T extends @Readonly Object>
+  required: @PICOLost List<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[712,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PICOLost List<T extends @Readonly Object>
+  method return type: @Mutable List<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[807,22] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable CharSequence
+  required: @ReceiverDependentMutable CharSequence
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[838,23] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Immutable List<capture#0236 [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable List<T [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[914,20] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable List<T extends @Readonly Object>
+  method return type: @PolyMutable List<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[914,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter list of Lists.reverse.
+  found   : @PolyMutable List<T extends @Readonly Object>
+  required: @Mutable List<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Lists.java:[1022,24] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable List<capture#0237 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/CollectionFuture.java:[53,16] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to add(E) not allowed on the given receiver.
+  found   : @Readonly List<@Mutable Present<V extends @Mutable Object>>
+  required: @Mutable List<@Mutable Present<V extends @Mutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/CollectionFuture.java:[56,18] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly List<@Mutable Present<V extends @Mutable Object>>
+  required: @Mutable List<@Mutable Present<V extends @Mutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/CollectionFuture.java:[99,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<@org.checkerframework.checker.nullness.qual.Nullable V extends @Mutable Object>
+  method return type: @Mutable List<@org.checkerframework.checker.nullness.qual.Nullable V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/Throwables.java:[317,39] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<@Mutable Throwable>
+  method return type: @Mutable List<@Mutable Throwable>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/Throwables.java:[392,8] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly List<@Immutable StackTraceElement>
+  method return type: @Mutable List<@Immutable StackTraceElement>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/Throwables.java:[428,84] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter params of Throwables.invokeAccessibleNonThrowingMethod.
+  found   : @Immutable int
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/AbstractValueGraph.java:[155,40] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Map.
+  found   : @Mutable EndpointPair<N extends @Readonly Object>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/AbstractValueGraph.java:[164,21] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Maps.asMap
+  unsatisfiable constraint: @Mutable EndpointPair<N extends @Readonly Object> <: @Immutable Object
+  @Mutable EndpointPair<N extends @Readonly Object> = use of K from Maps.asMap(graph.edges(), edgeToValueFn)
+  From complementary bound.: @Mutable EndpointPair<N extends @Readonly Object> <= use of K from Maps.asMap(graph.edges(), edgeToValueFn)
+  @Mutable Set<@Mutable EndpointPair<N extends @Readonly Object>> <: inference type: @org.checkerframework.checker.pico.qual.PolyMutable java.util.Set<K>
+  @Mutable Set<@Mutable EndpointPair<N extends @Readonly Object>> -> inference type: @org.checkerframework.checker.pico.qual.PolyMutable java.util.Set<K>
+  graph.edges() -> inference type: @org.checkerframework.checker.pico.qual.PolyMutable java.util.Set<K>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/AbstractBaseGraph.java:[73,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable EndpointPairIterator<N extends @Readonly Object>
+  method return type: @Immutable UnmodifiableIterator<@Mutable EndpointPair<N extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/AbstractBaseGraph.java:[123,77] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set2 of Sets.difference.
+  found   : @Immutable ImmutableSet<N extends @Readonly Object>
+  required: @Mutable Set<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/AbstractBaseGraph.java:[123,93] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromIterator of Iterators.transform.
+  found   : @Immutable UnmodifiableIterator<N extends @Readonly Object>
+  required: @Mutable Iterator<N extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/MapIteratorCache.java:[123,15] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Mutable MapIteratorCache<K extends @Immutable Object, V extends @Readonly Object>.@Mutable <anonymous com.google.common.graph.MapIteratorCache$1>.@Readonly <anonymous com.google.common.graph.MapIteratorCache$1$1> <init>(@Mutable MapIteratorCache<K extends @Immutable Object, V extends @Readonly Object>.@Mutable <anonymous com.google.common.graph.MapIteratorCache$1> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/MapIteratorCache.java:[123,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<K extends @Immutable Object>
+  method return type: @Immutable UnmodifiableIterator<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[54,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[54,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object> <: @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from checkNotNull(unfiltered) <: @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(unfiltered) -> @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(unfiltered)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[55,36] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Predicate<capture#0239 extends @Readonly Object super K extends @Immutable Object>
+  required: @ReceiverDependentMutable Predicate<? extends @Readonly Object super K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[55,36] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Predicate<capture#0239 extends @Readonly Object super K extends @Immutable Object> <: @ReceiverDependentMutable Predicate<? extends @Readonly Object super K extends @Immutable Object>
+  use of T from checkNotNull(keyPredicate) <: @ReceiverDependentMutable Predicate<? extends @Readonly Object super K extends @Immutable Object>
+  From complementary bound.: use of T from checkNotNull(keyPredicate) -> @ReceiverDependentMutable Predicate<? extends @Readonly Object super K extends @Immutable Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(keyPredicate)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[60,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[65,38] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter keyPredicate of Maps.keyPredicateOnEntries.
+  found   : @ReceiverDependentMutable Predicate<capture#0240 extends @Readonly Object super K extends @Immutable Object>
+  required: @Mutable Predicate<? extends @Readonly Object super K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[81,12] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[89,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Collection<V extends @Readonly Object>
+  method return type: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[89,50] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to removeAll(@org.checkerframework.checker.pico.qual.Readonly java.lang.Object) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[102,18] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Set<K extends @Immutable Object>
+  required: @Mutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[107,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Sets.filter.
+  found   : @ReceiverDependentMutable Predicate<capture#0241 extends @Readonly Object super K extends @Immutable Object>
+  required: @Mutable Predicate<? extends @Readonly Object super K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[113,27] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  method return type: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[115,13] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for AddRejectingSet constructor
+  unsatisfiable constraint: V extends @Readonly Object <: @Mutable Object
+  use of V from new AddRejectingSet<>(key) = V extends @Readonly Object
+  From complementary bound.: use of V from new AddRejectingSet<>(key) <= V extends @Readonly Object
+  inference type: com.google.common.collect.FilteredKeyMultimap.AddRejectingSet<K,V> <: @Mutable Collection<V extends @Readonly Object>
+  inference type: com.google.common.collect.FilteredKeyMultimap.AddRejectingSet<K,V> -> @Mutable Collection<V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:new AddRejectingSet<>(key)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[142,33] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Set<V extends @Mutable Object>
+  method return type: @Mutable Set<V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[182,34] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<V extends @Readonly Object>
+  method return type: @Mutable List<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[220,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of FilteredMultimapValues constructor.
+  found   : @ReceiverDependentMutable FilteredKeyMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable FilteredMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[225,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of Maps.filterKeys.
+  found   : @ReceiverDependentMutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Map<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[225,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter keyPredicate of Maps.filterKeys.
+  found   : @ReceiverDependentMutable Predicate<capture#0242 extends @Readonly Object super K extends @Immutable Object>
+  required: @Mutable Predicate<? extends @Readonly Object super K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[230,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of Multisets.filter.
+  found   : @ReceiverDependentMutable Multiset<K extends @Immutable Object>
+  required: @Mutable Multiset<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredKeyMultimap.java:[230,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter predicate of Multisets.filter.
+  found   : @ReceiverDependentMutable Predicate<capture#0243 extends @Readonly Object super K extends @Immutable Object>
+  required: @Mutable Predicate<? extends @Readonly Object super K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMaker.java:[306,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of ToStringHelper.add.
+  found   : @Immutable String
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMaker.java:[309,46] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of ToStringHelper.add.
+  found   : @Immutable String
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMaker.java:[312,17] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of ToStringHelper.addValue.
+  found   : @Immutable String
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[168,38] [[immutability, pico, piconoinit, allcheckers]:implicit.shallow.immutable] Write an explicit mutable qualifier if wants to exclude the field from the abstract state! Otherwise change the class mutability of this object !
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[179,46] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Equivalence<@Mutable Object>
+  required: @Mutable Equivalence<@Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[180,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable InternalEntryHelper<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+  required: @ReceiverDependentMutable InternalEntryHelper<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[195,35] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>> @Mutable []
+  required: @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>> @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[264,33] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Equivalence<@Readonly Object>
+  method return type: @Mutable Equivalence<@Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[298,106] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter E of Segment.
+  found   : E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>
+  required: @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[306,43] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter E of MapMakerInternalMap.
+  found   : E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>
+  required: @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[394,29] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter E of WeakValueReference.
+  found   : E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>
+  required: @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[404,82] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter E of InternalEntry.
+  found   : E extends @Mutable InternalEntry<K extends @Mutable Object, V extends @Readonly Object, E>
+  required: @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Mutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Mutable Object, V extends @Readonly Object, E>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[405,31] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter E of WeakValueReference.
+  found   : E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>
+  required: @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[406,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Mutable Object, V extends @Readonly Object, E>>>
+  method return type: @Mutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, E extends @Readonly InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[426,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable StrongKeyStrongValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[443,27] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Helper.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[500,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, @Mutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, @Mutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[518,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[518,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable WeakValueReferenceImpl<K extends @Immutable Object, V extends @Readonly Object, @Mutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, @Mutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[518,28] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for WeakValueReferenceImpl constructor
+  unsatisfiable constraint: @ReceiverDependentMutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  @Mutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> = use of E from new WeakValueReferenceImpl<>(queueForValues, value, this)
+  From complementary bound.: @Mutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> <= use of E from new WeakValueReferenceImpl<>(queueForValues, value, this)
+  @ReceiverDependentMutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> <: inference type: com.google.common.collect.MapMakerInternalMap.InternalEntry<K,V,E>
+  @ReceiverDependentMutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> <: use of E from new WeakValueReferenceImpl<>(queueForValues, value, this)
+  From complementary bound.: @ReceiverDependentMutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> -> use of E from new WeakValueReferenceImpl<>(queueForValues, value, this)
+  this -> use of E from new WeakValueReferenceImpl<>(queueForValues, value, this)
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[531,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, @Mutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, @Mutable StrongKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[541,27] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Helper.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[729,24] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Helper.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[871,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, @Mutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, @Mutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[900,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[900,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable WeakValueReferenceImpl<K extends @Immutable Object, V extends @Readonly Object, @Mutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, @Mutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[900,28] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for WeakValueReferenceImpl constructor
+  unsatisfiable constraint: @ReceiverDependentMutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  @Mutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> = use of E from new WeakValueReferenceImpl<>(queueForValues, value, this)
+  From complementary bound.: @Mutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> <= use of E from new WeakValueReferenceImpl<>(queueForValues, value, this)
+  @ReceiverDependentMutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> <: inference type: com.google.common.collect.MapMakerInternalMap.InternalEntry<K,V,E>
+  @ReceiverDependentMutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> <: use of E from new WeakValueReferenceImpl<>(queueForValues, value, this)
+  From complementary bound.: @ReceiverDependentMutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object> -> use of E from new WeakValueReferenceImpl<>(queueForValues, value, this)
+  this -> use of E from new WeakValueReferenceImpl<>(queueForValues, value, this)
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[906,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, @Mutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable WeakValueReference<K extends @Immutable Object, V extends @Readonly Object, @Mutable WeakKeyWeakValueEntry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1045,34] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of WeakValueReference.
+  found   : @Mutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1045,50] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter E of WeakValueReference.
+  found   : @Mutable DummyInternalEntry
+  required: @Mutable InternalEntry<@Mutable Object, @Mutable Object, @Mutable DummyInternalEntry>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1140,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of InternalEntryHelper.newSegment.
+  found   : @ReceiverDependentMutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+  required: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1222,47] [[immutability, pico, piconoinit, allcheckers]:implicit.shallow.immutable] Write an explicit mutable qualifier if wants to exclude the field from the abstract state! Otherwise change the class mutability of this object !
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1231,24] [[immutability, pico, piconoinit, allcheckers]:implicit.shallow.immutable] Write an explicit mutable qualifier if wants to exclude the field from the abstract state! Otherwise change the class mutability of this object !
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1234,17] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+  required: @ReceiverDependentMutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1269,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1272,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1274,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1528,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1531,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1540,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1548,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1552,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1580,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1624,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1625,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1648,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1652,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1658,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1695,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1699,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1704,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1742,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1746,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1783,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1787,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1809,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1810,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1841,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1857,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1861,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1889,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1893,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1949,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1953,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[1965,42] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of InternalEntry.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2027,22] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Segment.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2027,54] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of StrongKeyStrongValueEntry.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2030,16] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of MapMakerInternalMap.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2030,48] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of StrongKeyStrongValueEntry.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2039,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable StrongKeyStrongValueSegment<K extends @Readonly Object, V extends @Readonly Object>
+  method return type: @Mutable StrongKeyStrongValueSegment<K extends @Readonly Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2044,37] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of StrongKeyStrongValueEntry.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2044,72] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of InternalEntry.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2128,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable StrongKeyDummyValueSegment<K extends @Immutable Object>
+  method return type: @Mutable StrongKeyDummyValueSegment<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2142,51] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable ReferenceQueue<K extends @Immutable Object>
+  required: @ReceiverDependentMutable ReferenceQueue<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2154,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable WeakKeyStrongValueSegment<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable WeakKeyStrongValueSegment<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2159,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable ReferenceQueue<K extends @Immutable Object>
+  method return type: @Mutable ReferenceQueue<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2170,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter keyReferenceQueue of Segment.drainKeyReferenceQueue.
+  found   : @ReceiverDependentMutable ReferenceQueue<K extends @Immutable Object>
+  required: @Mutable ReferenceQueue<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2175,26] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter referenceQueue of Segment.clearReferenceQueue.
+  found   : @ReceiverDependentMutable ReferenceQueue<K extends @Immutable Object>
+  required: @Mutable ReferenceQueue<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2183,51] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable ReferenceQueue<K extends @Immutable Object>
+  required: @ReceiverDependentMutable ReferenceQueue<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2184,53] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable ReferenceQueue<V extends @Readonly Object>
+  required: @ReceiverDependentMutable ReferenceQueue<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2195,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable WeakKeyWeakValueSegment<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable WeakKeyWeakValueSegment<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2200,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable ReferenceQueue<K extends @Immutable Object>
+  method return type: @Mutable ReferenceQueue<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2205,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable ReferenceQueue<V extends @Readonly Object>
+  method return type: @Mutable ReferenceQueue<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2223,42] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter queue of WeakValueReferenceImpl constructor.
+  found   : @ReceiverDependentMutable ReferenceQueue<V extends @Readonly Object>
+  required: @Mutable ReferenceQueue<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2241,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter keyReferenceQueue of Segment.drainKeyReferenceQueue.
+  found   : @ReceiverDependentMutable ReferenceQueue<K extends @Immutable Object>
+  required: @Mutable ReferenceQueue<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2242,31] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter valueReferenceQueue of Segment.drainValueReferenceQueue.
+  found   : @ReceiverDependentMutable ReferenceQueue<V extends @Readonly Object>
+  required: @Mutable ReferenceQueue<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2247,26] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter referenceQueue of Segment.clearReferenceQueue.
+  found   : @ReceiverDependentMutable ReferenceQueue<K extends @Immutable Object>
+  required: @Mutable ReferenceQueue<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2254,22] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Segment.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2254,55] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of WeakKeyDummyValueEntry.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2255,51] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable ReferenceQueue<K extends @Readonly Object>
+  required: @ReceiverDependentMutable ReferenceQueue<K extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2258,28] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of MapMakerInternalMap.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2258,61] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of WeakKeyDummyValueEntry.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2266,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable WeakKeyDummyValueSegment<K extends @Readonly Object>
+  method return type: @Mutable WeakKeyDummyValueSegment<K extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2271,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable ReferenceQueue<K extends @Readonly Object>
+  method return type: @Mutable ReferenceQueue<K extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2276,34] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of WeakKeyDummyValueEntry.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2276,66] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of InternalEntry.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2282,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter keyReferenceQueue of Segment.drainKeyReferenceQueue.
+  found   : @ReceiverDependentMutable ReferenceQueue<K extends @Readonly Object>
+  required: @Mutable ReferenceQueue<K extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2287,26] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter referenceQueue of Segment.clearReferenceQueue.
+  found   : @ReceiverDependentMutable ReferenceQueue<K extends @Readonly Object>
+  required: @Mutable ReferenceQueue<K extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2323,57] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Equivalence<@Mutable Object>
+  method return type: @Mutable Equivalence<@Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2441,20] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of MapMakerInternalMap.hash.
+  found   : K extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2450,20] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of MapMakerInternalMap.hash.
+  found   : K extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2489,20] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of MapMakerInternalMap.hash.
+  found   : K extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2498,20] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of MapMakerInternalMap.hash.
+  found   : K extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2514,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Set<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+  method return type: @Mutable Set<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2514,39] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2514,41] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @ReceiverDependentMutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@Mutable KeySet
+  required: @ReceiverDependentMutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2522,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  method return type: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2522,39] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2522,41] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @ReceiverDependentMutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@Mutable Values
+  required: @ReceiverDependentMutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2530,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Set<@Mutable Entry<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Set<@Mutable Entry<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2530,41] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2530,43] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @ReceiverDependentMutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@Mutable EntrySet
+  required: @ReceiverDependentMutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2541,38] [[immutability, pico, piconoinit, allcheckers]:implicit.shallow.immutable] Write an explicit mutable qualifier if wants to exclude the field from the abstract state! Otherwise change the class mutability of this object !
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2556,19] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2567,23] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2567,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+  required: @ReceiverDependentMutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2567,50] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2569,23] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2570,25] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2581,23] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2581,75] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2593,23] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2593,56] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2611,23] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2611,25] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@Mutable WriteThroughEntry
+  required: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable WriteThroughEntry
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2631,19] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2633,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable WriteThroughEntry
+  method return type: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@Mutable WriteThroughEntry
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2639,57] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of MapMakerInternalMap.remove.
+  found   : K extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2640,19] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable HashIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2705,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable WriteThroughEntry
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2789,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter c of MapMakerInternalMap.toArrayList.
+  found   : @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable Values
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2789,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @Mutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2794,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter c of MapMakerInternalMap.toArrayList.
+  found   : @Mutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>.@ReceiverDependentMutable Values
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2817,41] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of MapMakerInternalMap.get.
+  found   : @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2829,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of MapMakerInternalMap.remove.
+  found   : @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2829,75] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of MapMakerInternalMap.remove.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2854,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter c of MapMakerInternalMap.toArrayList.
+  found   : @ReceiverDependentMutable SafeToArraySet<E extends @Readonly Object>
+  required: @Mutable Collection<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2854,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @Mutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2859,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter c of MapMakerInternalMap.toArrayList.
+  found   : @ReceiverDependentMutable SafeToArraySet<E extends @Readonly Object>
+  required: @Mutable Collection<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2878,8] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter keyEquivalence of SerializationProxy constructor.
+  found   : @Mutable Equivalence<@Readonly Object>
+  required: @Mutable Equivalence<@Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2881,8] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of SerializationProxy constructor.
+  found   : @ReceiverDependentMutable MapMakerInternalMap<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S extends @Mutable Segment<K extends @Immutable Object, V extends @Readonly Object, E extends @Mutable InternalEntry<K extends @Immutable Object, V extends @Readonly Object, E>, S>>
+  required: @Mutable ConcurrentMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2895,30] [[immutability, pico, piconoinit, allcheckers]:implicit.shallow.immutable] Write an explicit mutable qualifier if wants to exclude the field from the abstract state! Otherwise change the class mutability of this object !
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2896,30] [[immutability, pico, piconoinit, allcheckers]:implicit.shallow.immutable] Write an explicit mutable qualifier if wants to exclude the field from the abstract state! Otherwise change the class mutability of this object !
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2913,22] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable ConcurrentMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable ConcurrentMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2918,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable ConcurrentMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable ConcurrentMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2944,16] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2949,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to put(K,V) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable ConcurrentMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2958,89] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of AbstractSerializationProxy.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2967,22] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of ConcurrentMap.
+  found   : K extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MapMakerInternalMap.java:[2980,33] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for MapMaker.makeMap
+  unsatisfiable constraint: K extends @Readonly Object <: @Immutable Object
+  use of K from mapMaker.makeMap() = K extends @Readonly Object
+  From complementary bound.: use of K from mapMaker.makeMap() <= K extends @Readonly Object
+  inference type: java.util.concurrent.ConcurrentMap<K,V> <: @Mutable ConcurrentMap<K extends @Readonly Object, V extends @Readonly Object>
+  inference type: java.util.concurrent.ConcurrentMap<K,V> -> @Mutable ConcurrentMap<K extends @Readonly Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:mapMaker.makeMap()
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingTable.java:[54,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<@Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @ReceiverDependentMutable Set<@Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/reflect/TypeToInstanceMap.java:[46,59] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Map.
+  found   : @Mutable TypeToken<? extends B extends @Readonly Object>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TopKSelector.java:[286,39] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<T extends @Readonly Object>
+  method return type: @Mutable List<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/eventbus/EventBus.java:[276,53] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of ToStringHelper.addValue.
+  found   : @Immutable String
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SortedLists.java:[226,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for SortedLists.binarySearch
+  unsatisfiable constraint: K extends @Mutable Comparable</*RAW*/> <: @Immutable Object
+  K extends @Mutable Comparable</*RAW*/> = use of K from binarySearch(list, keyFunction, key, Ordering.natural(), presentBehavior, absentBehavior)
+  From complementary bound.: K extends @Mutable Comparable</*RAW*/> <= use of K from binarySearch(list, keyFunction, key, Ordering.natural(), presentBehavior, absentBehavior)
+  @Mutable Function<capture#0252 extends @Readonly Object super E extends @Mutable Object, K extends @Mutable Comparable</*RAW*/>> <: inference type: com.google.common.base.Function<? super E,K>
+  @Mutable Function<capture#0252 extends @Readonly Object super E extends @Mutable Object, K extends @Mutable Comparable</*RAW*/>> -> inference type: com.google.common.base.Function<? super E,K>
+  keyFunction -> inference type: com.google.common.base.Function<? super E,K>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SortedLists.java:[244,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for SortedLists.binarySearch
+  unsatisfiable constraint: K extends @Immutable Object <: @Mutable Object
+  K extends @Immutable Object <: use of E from binarySearch(Lists.transform(list, keyFunction), key, keyComparator, presentBehavior, absentBehavior)
+  From complementary bound.: use of T from Lists.transform(list, keyFunction) <: use of E from binarySearch(Lists.transform(list, keyFunction), key, keyComparator, presentBehavior, absentBehavior)
+  From complementary bound.: use of T from Lists.transform(list, keyFunction) <= inference type: ? extends E
+  inference type: java.util.List<T> <: inference type: java.util.List<? extends E>
+  inference type: java.util.List<T> -> inference type: java.util.List<? extends E>
+  From: Constraint between method call type and target type for method call:Lists.transform(list, keyFunction)
+  K extends @Immutable Object <: @Mutable Object
+  use of T from Lists.transform(list, keyFunction) <: @Mutable Object
+  From complementary bound.: use of T from Lists.transform(list, keyFunction) <: use of E from binarySearch(Lists.transform(list, keyFunction), key, keyComparator, presentBehavior, absentBehavior)
+  From complementary bound.: use of T from Lists.transform(list, keyFunction) <= inference type: ? extends E
+  inference type: java.util.List<T> <: inference type: java.util.List<? extends E>
+  inference type: java.util.List<T> -> inference type: java.util.List<? extends E>
+  From: Constraint between method call type and target type for method call:Lists.transform(list, keyFunction)
+[WARNING]   ; The Checker Framework crashed.  Please report the crash.  Version: Checker Framework 3.49.5-eisop1-SNAPSHOT, branch pico-move-lazy, 2025-10-29, commit 3261311, dirty=true. 
+  Checker: class org.checkerframework.checker.pico.PICONoInitSubchecker
+  Visitor: class org.checkerframework.checker.pico.PICONoInitVisitor
+  Compilation unit: /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableRangeSet.java
+  Last visited tree at line 773 column 21:
+        return addAll(ranges.asRanges());
+  Exception: org.checkerframework.javacutil.BugInCF: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>; org.checkerframework.javacutil.BugInCF: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.getTypeParameterElement(PropagationTypeAnnotator.java:226)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:132)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedWildcardType.accept(AnnotatedTypeMirror.java:2423)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:58)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:20)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.addDefaultAnnotations(GenericAnnotatedTypeFactory.java:1987)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:872)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:32)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:723)
+  	at org.checkerframework.framework.type.visitor.AbstractAtmComboVisitor.visit(AbstractAtmComboVisitor.java:34)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visit(AsSuperVisitor.java:109)
+  	at org.checkerframework.framework.type.AsSuperVisitor.asSuper(AsSuperVisitor.java:90)
+  	at org.checkerframework.framework.util.AnnotatedTypes.asSuper(AnnotatedTypes.java:120)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:518)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visitTypevar_Typevar(EquivalentAtmComboScanner.java:188)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:589)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:669)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.access$200(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism.resolve(AbstractQualifierPolymorphism.java:212)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUsePreSubstitution(GenericAnnotatedTypeFactory.java:2342)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2634)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2545)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUse(GenericAnnotatedTypeFactory.java:2331)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2505)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:419)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:82)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1813)
+  	at jdk.compiler/com.sun.source.util.SimpleTreeVisitor.visit(SimpleTreeVisitor.java:81)
+  	at org.checkerframework.framework.type.TypeFromTree.fromExpression(TypeFromTree.java:43)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.fromExpression(AnnotatedTypeFactory.java:1861)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.getAnnotatedType(AnnotatedTypeFactory.java:1501)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.getValueFromFactory(CFAbstractTransfer.java:225)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:1152)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:106)
+  	at org.checkerframework.dataflow.cfg.node.MethodInvocationNode.accept(MethodInvocationNode.java:156)
+  	at org.checkerframework.dataflow.analysis.AbstractAnalysis.callTransferFunction(AbstractAnalysis.java:396)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.callTransferFunction(ForwardAnalysisImpl.java:402)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.callTransferFunction(CFAbstractAnalysis.java:246)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysisBlock(ForwardAnalysisImpl.java:157)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysis(ForwardAnalysisImpl.java:110)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.performAnalysis(CFAbstractAnalysis.java:155)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.analyze(GenericAnnotatedTypeFactory.java:1629)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.performFlowAnalysis(GenericAnnotatedTypeFactory.java:1518)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.checkAndPerformFlowAnalysis(GenericAnnotatedTypeFactory.java:2132)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.preProcessClassTree(GenericAnnotatedTypeFactory.java:452)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:631)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:197)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)
+  	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:60)
+  	at org.checkerframework.framework.source.SourceVisitor.visit(SourceVisitor.java:91)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1440)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1355)
+  	at org.checkerframework.javacutil.AbstractTypeProcessor$AttributionTaskListener.finished(AbstractTypeProcessor.java:193)
+  	at jdk.compiler/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:854)
+  	at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1394)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1351)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:946)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
+  	at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
+  	at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)
+  Caused by: java.lang.Throwable
+  	at org.checkerframework.javacutil.BugInCF.<init>(BugInCF.java:39)
+  	... 82 more
+  
+  Underlying Exception: java.lang.Throwable; java.lang.Throwable
+  	at org.checkerframework.javacutil.BugInCF.<init>(BugInCF.java:39)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.getTypeParameterElement(PropagationTypeAnnotator.java:226)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:132)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedWildcardType.accept(AnnotatedTypeMirror.java:2423)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:58)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:20)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.addDefaultAnnotations(GenericAnnotatedTypeFactory.java:1987)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:872)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:32)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:723)
+  	at org.checkerframework.framework.type.visitor.AbstractAtmComboVisitor.visit(AbstractAtmComboVisitor.java:34)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visit(AsSuperVisitor.java:109)
+  	at org.checkerframework.framework.type.AsSuperVisitor.asSuper(AsSuperVisitor.java:90)
+  	at org.checkerframework.framework.util.AnnotatedTypes.asSuper(AnnotatedTypes.java:120)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:518)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visitTypevar_Typevar(EquivalentAtmComboScanner.java:188)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:589)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:669)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.access$200(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism.resolve(AbstractQualifierPolymorphism.java:212)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUsePreSubstitution(GenericAnnotatedTypeFactory.java:2342)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2634)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2545)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUse(GenericAnnotatedTypeFactory.java:2331)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2505)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:419)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:82)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1813)
+  	at jdk.compiler/com.sun.source.util.SimpleTreeVisitor.visit(SimpleTreeVisitor.java:81)
+  	at org.checkerframework.framework.type.TypeFromTree.fromExpression(TypeFromTree.java:43)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.fromExpression(AnnotatedTypeFactory.java:1861)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.getAnnotatedType(AnnotatedTypeFactory.java:1501)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.getValueFromFactory(CFAbstractTransfer.java:225)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:1152)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:106)
+  	at org.checkerframework.dataflow.cfg.node.MethodInvocationNode.accept(MethodInvocationNode.java:156)
+  	at org.checkerframework.dataflow.analysis.AbstractAnalysis.callTransferFunction(AbstractAnalysis.java:396)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.callTransferFunction(ForwardAnalysisImpl.java:402)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.callTransferFunction(CFAbstractAnalysis.java:246)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysisBlock(ForwardAnalysisImpl.java:157)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysis(ForwardAnalysisImpl.java:110)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.performAnalysis(CFAbstractAnalysis.java:155)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.analyze(GenericAnnotatedTypeFactory.java:1629)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.performFlowAnalysis(GenericAnnotatedTypeFactory.java:1518)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.checkAndPerformFlowAnalysis(GenericAnnotatedTypeFactory.java:2132)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.preProcessClassTree(GenericAnnotatedTypeFactory.java:452)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:631)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:197)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)
+  	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:60)
+  	at org.checkerframework.framework.source.SourceVisitor.visit(SourceVisitor.java:91)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1440)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1355)
+  	at org.checkerframework.javacutil.AbstractTypeProcessor$AttributionTaskListener.finished(AbstractTypeProcessor.java:193)
+  	at jdk.compiler/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:854)
+  	at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1394)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1351)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:946)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
+  	at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
+  	at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)
+/Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[589,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter comparator of ImmutableSortedSet.unsafeCompare.
+  found   : @Immutable Comparator<capture#0253 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Comparator<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[598,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of Comparator.compare.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[598,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg1 of Comparator.compare.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[604,22] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Comparator<capture#0254 extends @Readonly Object super E extends @Readonly Object>
+  required: @Immutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[615,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Comparator<capture#0255 extends @Readonly Object super E extends @Readonly Object>
+  method return type: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[710,65] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter iterator of Iterators.getNext.
+  found   : @Immutable UnmodifiableIterator<E extends @Readonly Object>
+  required: @Mutable Iterator<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[717,64] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter iterator of Iterators.getNext.
+  found   : @Immutable UnmodifiableIterator<E extends @Readonly Object>
+  required: @Mutable Iterator<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[724,37] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter iterable of Iterables.getFirst.
+  found   : @Immutable ImmutableSortedSet<E extends @Readonly Object>
+  required: @Mutable Iterable<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[732,37] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter iterable of Iterables.getFirst.
+  found   : @Immutable ImmutableSortedSet<E extends @Readonly Object>
+  required: @Mutable Iterable<? extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[737,26] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable UnmodifiableIterator<E extends @Readonly Object>
+  required: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[742,36] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable UnmodifiableIterator<E extends @Readonly Object>
+  required: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[791,29] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ImmutableSortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[792,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ImmutableSortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[812,37] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable UnmodifiableIterator<E extends @Readonly Object>
+  required: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[821,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Comparator<capture#0256 extends @Readonly Object super E extends @Readonly Object>
+  method return type: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedSet.java:[863,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter comparator of SerializedForm constructor.
+  found   : @Immutable Comparator<capture#0257 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[145,33] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable Iterator<E extends @Readonly Object>
+  required: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[154,37] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable Iterator<E extends @Readonly Object>
+  required: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[171,35] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Collections.binarySearch
+  unsatisfiable constraint: E extends @Readonly Object <: @Mutable Object
+  use of T from Collections.binarySearch(elements, key, unsafeComparator()) <: @Mutable Object
+  From complementary bound.: @Mutable Object <= inference type: ? super T
+  @Mutable Comparator<@Mutable Object> <: inference type: java.util.Comparator<? super T>
+  @Mutable Comparator<@Mutable Object> -> inference type: java.util.Comparator<? super T>
+  unsafeComparator() -> inference type: java.util.Comparator<? super T>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[201,42] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter comparator of SortedIterables.hasSameComparator.
+  found   : @Immutable Comparator<capture#0258 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Comparator<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[206,40] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable Iterator<E extends @Readonly Object>
+  required: @Mutable Iterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[307,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Immutable Comparator<capture#0259 [ extends @Readonly Object super E [ extends @Readonly Object super @PICOBottom NullType ] ]>" to "@Mutable Comparator<@Mutable Object>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[315,54] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter comparator of RegularImmutableSortedSet constructor.
+  found   : @Immutable Comparator<capture#0260 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[317,22] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter comparator of ImmutableSortedSet.emptySet.
+  found   : @Immutable Comparator<capture#0261 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[328,41] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Collections.binarySearch
+  unsatisfiable constraint: E extends @Readonly Object <: @Mutable Object
+  use of T from Collections.binarySearch(elements, target, unsafeComparator()) <: @Mutable Object
+  From complementary bound.: @Mutable Object <= inference type: ? super T
+  @Mutable Comparator<@Mutable Object> <: inference type: java.util.Comparator<? super T>
+  @Mutable Comparator<@Mutable Object> -> inference type: java.util.Comparator<? super T>
+  unsafeComparator() -> inference type: java.util.Comparator<? super T>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[344,19] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter comparator of ImmutableSortedSet.emptySet.
+  found   : @Readonly Comparator<capture#0262 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedSet.java:[345,63] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter comparator of RegularImmutableSortedSet constructor.
+  found   : @Readonly Comparator<capture#0263 extends @Readonly Object super E extends @Readonly Object>
+  required: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/primitives/Primitives.java:[59,59] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable Map<@Immutable Class<? extends @Readonly Object>, @Immutable Class<? extends @Readonly Object>>
+  required: @Mutable Map<@Immutable Class<? extends @Readonly Object>, @Immutable Class<? extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/primitives/Primitives.java:[60,59] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable Map<@Immutable Class<? extends @Readonly Object>, @Immutable Class<? extends @Readonly Object>>
+  required: @Mutable Map<@Immutable Class<? extends @Readonly Object>, @Immutable Class<? extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SparseImmutableTable.java:[83,26] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SparseImmutableTable.java:[84,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SparseImmutableTable.java:[104,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of ImmutableMap.copyOf.
+  found   : @Immutable ImmutableMap<C extends @Immutable Object, @Immutable ImmutableMap<R extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Map<? extends C extends @Immutable Object, ? extends @Mutable Map<R extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SparseImmutableTable.java:[111,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of ImmutableMap.copyOf.
+  found   : @Immutable ImmutableMap<R extends @Immutable Object, @Immutable ImmutableMap<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Map<? extends R extends @Immutable Object, ? extends @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SparseImmutableTable.java:[146,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter cellRowIndices of SerializedForm.create.
+  found   : @Immutable int @Immutable []
+  required: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableTable.java:[159,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of ImmutableSet.copyOf.
+  found   : @Immutable ImmutableList<R extends @Immutable Object>
+  required: @Mutable Collection<? extends R extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableTable.java:[163,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of ImmutableSet.copyOf.
+  found   : @Immutable ImmutableList<C extends @Immutable Object>
+  required: @Mutable Collection<? extends C extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[75,43] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for TableCollectors.toImmutableTable
+  unsatisfiable constraint: T extends @Readonly Object <: @Mutable Object
+  T extends @Readonly Object = use of T from TableCollectors.toImmutableTable(rowFunction, columnFunction, valueFunction)
+  From complementary bound.: use of captured T from TableCollectors.toImmutableTable(rowFunction, columnFunction, valueFunction) = T extends @Readonly Object
+  From complementary bound.: use of captured T from TableCollectors.toImmutableTable(rowFunction, columnFunction, valueFunction) <= T extends @Readonly Object
+  inference type: java.util.stream.Collector<T,A,R> <: @Mutable Collector<T extends @Readonly Object, ? extends @Readonly Object, @Immutable ImmutableTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+  inference type: java.util.stream.Collector<T,A,R> -> @Mutable Collector<T extends @Readonly Object, ? extends @Readonly Object, @Immutable ImmutableTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+  From: Captured constraint from method call: TableCollectors.toImmutableTable(rowFunction, columnFunction, valueFunction)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[95,43] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for TableCollectors.toImmutableTable
+  unsatisfiable constraint: T extends @Readonly Object <: @Mutable Object
+  T extends @Readonly Object = use of T from TableCollectors.toImmutableTable(rowFunction, columnFunction, valueFunction, mergeFunction)
+  From complementary bound.: use of captured T from TableCollectors.toImmutableTable(rowFunction, columnFunction, valueFunction, mergeFunction) = T extends @Readonly Object
+  From complementary bound.: use of captured T from TableCollectors.toImmutableTable(rowFunction, columnFunction, valueFunction, mergeFunction) <= T extends @Readonly Object
+  inference type: java.util.stream.Collector<T,A,R> <: @Mutable Collector<T extends @Readonly Object, ? extends @Readonly Object, @Immutable ImmutableTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+  inference type: java.util.stream.Collector<T,A,R> -> @Mutable Collector<T extends @Readonly Object, ? extends @Readonly Object, @Immutable ImmutableTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+  From: Captured constraint from method call: TableCollectors.toImmutableTable(rowFunction, columnFunction, valueFunction, mergeFunction)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[111,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for SingletonImmutableTable constructor
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object <: use of V from new SingletonImmutableTable<>(rowKey, columnKey, value)
+  From complementary bound.: V extends @Readonly Object -> use of V from new SingletonImmutableTable<>(rowKey, columnKey, value)
+  value -> use of V from new SingletonImmutableTable<>(rowKey, columnKey, value)
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[160,31] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[293,17] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for SingletonImmutableTable constructor
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object = use of V from new SingletonImmutableTable<>(Iterables.getOnlyElement(cells))
+  From complementary bound.: V extends @Readonly Object <= use of V from new SingletonImmutableTable<>(Iterables.getOnlyElement(cells))
+  @Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object> <: inference type: com.google.common.collect.Table.Cell<R,C,V>
+  use of T from Iterables.getOnlyElement(cells) <: inference type: com.google.common.collect.Table.Cell<R,C,V>
+  From complementary bound.: use of T from Iterables.getOnlyElement(cells) -> inference type: com.google.common.collect.Table.Cell<R,C,V>
+  From: Constraint between method call type and target type for method call:Iterables.getOnlyElement(cells)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[473,21] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[474,24] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[475,24] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[476,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[477,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[495,17] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableTable.of
+  unsatisfiable constraint: @Mutable Object <: @Immutable Object
+  @Mutable Object <: use of R from of(rowKeys[0], columnKeys[0], cellValues[0])
+  From complementary bound.: @Mutable Object -> use of R from of(rowKeys[0], columnKeys[0], cellValues[0])
+  rowKeys[0] -> use of R from of(rowKeys[0], columnKeys[0], cellValues[0])
+  From: Argument constraint
+  @Mutable Object <: @Immutable Object
+  @Mutable Object <: use of C from of(rowKeys[0], columnKeys[0], cellValues[0])
+  From complementary bound.: @Mutable Object -> use of C from of(rowKeys[0], columnKeys[0], cellValues[0])
+  columnKeys[0] -> use of C from of(rowKeys[0], columnKeys[0], cellValues[0])
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[501,18] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableTable.cellOf
+  unsatisfiable constraint: @Mutable Object <: @Immutable Object
+  @Mutable Object <: use of R from cellOf(rowKeys[cellRowIndices[i]], columnKeys[cellColumnIndices[i]], cellValues[i])
+  From complementary bound.: @Mutable Object -> use of R from cellOf(rowKeys[cellRowIndices[i]], columnKeys[cellColumnIndices[i]], cellValues[i])
+  rowKeys[cellRowIndices[i]] -> use of R from cellOf(rowKeys[cellRowIndices[i]], columnKeys[cellColumnIndices[i]], cellValues[i])
+  From: Argument constraint
+  @Mutable Object <: @Immutable Object
+  @Mutable Object <: use of C from cellOf(rowKeys[cellRowIndices[i]], columnKeys[cellColumnIndices[i]], cellValues[i])
+  From complementary bound.: @Mutable Object -> use of C from cellOf(rowKeys[cellRowIndices[i]], columnKeys[cellColumnIndices[i]], cellValues[i])
+  columnKeys[cellColumnIndices[i]] -> use of C from cellOf(rowKeys[cellRowIndices[i]], columnKeys[cellColumnIndices[i]], cellValues[i])
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[503,55] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for RegularImmutableTable.forOrderedComponents
+  unsatisfiable constraint: @Mutable Object <: @Immutable Object
+  use of E from ImmutableSet.copyOf(rowKeys) = use of R from RegularImmutableTable.forOrderedComponents(cellListBuilder.build(), ImmutableSet.copyOf(rowKeys), ImmutableSet.copyOf(columnKeys))
+  From complementary bound.: use of E from ImmutableSet.copyOf(rowKeys) <= use of R from RegularImmutableTable.forOrderedComponents(cellListBuilder.build(), ImmutableSet.copyOf(rowKeys), ImmutableSet.copyOf(columnKeys))
+  inference type: com.google.common.collect.ImmutableSet<E> <: inference type: com.google.common.collect.ImmutableSet<R>
+  inference type: com.google.common.collect.ImmutableSet<E> -> inference type: com.google.common.collect.ImmutableSet<R>
+  From: Constraint between method call type and target type for method call:ImmutableSet.copyOf(rowKeys)
+  @Mutable Object <: @Immutable Object
+  use of E from ImmutableSet.copyOf(columnKeys) = use of C from RegularImmutableTable.forOrderedComponents(cellListBuilder.build(), ImmutableSet.copyOf(rowKeys), ImmutableSet.copyOf(columnKeys))
+  From complementary bound.: use of E from ImmutableSet.copyOf(columnKeys) <= use of C from RegularImmutableTable.forOrderedComponents(cellListBuilder.build(), ImmutableSet.copyOf(rowKeys), ImmutableSet.copyOf(columnKeys))
+  inference type: com.google.common.collect.ImmutableSet<E> <: inference type: com.google.common.collect.ImmutableSet<C>
+  inference type: com.google.common.collect.ImmutableSet<E> -> inference type: com.google.common.collect.ImmutableSet<C>
+  From: Constraint between method call type and target type for method call:ImmutableSet.copyOf(columnKeys)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableTable.java:[511,31] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable SerializedForm
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractTable.java:[152,29] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Cell<capture#0264 [ extends @Immutable Object super @PICOBottom NullType ], capture#0265 [ extends @Immutable Object super @PICOBottom NullType ], capture#0266 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractTable.java:[164,29] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Cell<capture#0267 [ extends @Immutable Object super @PICOBottom NullType ], capture#0268 [ extends @Immutable Object super @PICOBottom NullType ], capture#0269 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[175,12] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : V extends @Readonly Object @Mutable [] @Mutable []
+  required: V extends @Readonly Object @ReceiverDependentMutable [] @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[193,12] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : V extends @Readonly Object @Mutable [] @Mutable []
+  required: V extends @Readonly Object @ReceiverDependentMutable [] @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[210,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSet<K extends @Immutable Object>
+  method return type: @Mutable Set<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[504,16] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to putAll(com.google.common.collect.Table<? extends R,? extends C,? extends V>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable ArrayTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[566,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Set<@Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Set<@Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, @org.checkerframework.checker.nullness.qual.Nullable V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[631,21] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Map<R extends @Immutable Object, @org.checkerframework.checker.nullness.qual.Nullable V extends @Readonly Object>
+  method return type: @Mutable Map<R extends @Immutable Object, @org.checkerframework.checker.nullness.qual.Nullable V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[674,44] [[immutability, pico, piconoinit, allcheckers]:implicit.shallow.immutable] Write an explicit mutable qualifier if wants to exclude the field from the abstract state! Otherwise change the class mutability of this object !
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[679,37] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable ArrayTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[726,21] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Map<C extends @Immutable Object, @org.checkerframework.checker.nullness.qual.Nullable V extends @Readonly Object>
+  method return type: @Mutable Map<C extends @Immutable Object, @org.checkerframework.checker.nullness.qual.Nullable V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[774,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, @org.checkerframework.checker.nullness.qual.Nullable V extends @Readonly Object>>
+  method return type: @Mutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, @org.checkerframework.checker.nullness.qual.Nullable V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[774,34] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable ArrayTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[774,36] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @ReceiverDependentMutable ArrayTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@Mutable RowMap
+  required: @Mutable ArrayTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable RowMap
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[817,23] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  method return type: @Mutable Collection<@org.checkerframework.checker.nullness.qual.Nullable V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayTable.java:[822,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Iterator<@org.checkerframework.checker.nullness.qual.Nullable V extends @Readonly Object>
+  method return type: @ReceiverDependentMutable Iterator<@org.checkerframework.checker.nullness.qual.Nullable V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[82,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AbstractMapBasedMultiset<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[102,87] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@ReceiverDependentMutable Entry<E extends @Immutable Object, @Mutable Count>>
+  required: @Readonly Iterator<@Mutable Entry<E extends @Immutable Object, @Mutable Count>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[131,87] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@ReceiverDependentMutable Entry<E extends @Immutable Object, @Mutable Count>>
+  required: @Readonly Iterator<@Mutable Entry<E extends @Immutable Object, @Mutable Count>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[186,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Map<E extends @Immutable Object, @Mutable Count>
+  required: @Mutable Map<E extends @Immutable Object, @Mutable Count>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[187,9] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AbstractMapBasedMultiset<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[221,57] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@Mutable Entry<E extends @Immutable Object, @Mutable Count>>
+  required: @ReceiverDependentMutable Iterator<@Mutable Entry<E extends @Immutable Object, @Mutable Count>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[233,21] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable AbstractMapBasedMultiset<E extends @Immutable Object>.@ReceiverDependentMutable MapBasedMultisetIterator
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[233,41] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Entry<E extends @Immutable Object, @Mutable Count>
+  required: @ReceiverDependentMutable Entry<E extends @Immutable Object, @Mutable Count>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[233,41] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Iterator<@Mutable Entry<E extends @Immutable Object, @Mutable Count>>
+  required: @Mutable Iterator<@Mutable Entry<E extends @Immutable Object, @Mutable Count>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[234,24] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable AbstractMapBasedMultiset<E extends @Immutable Object>.@ReceiverDependentMutable MapBasedMultisetIterator
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[236,21] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable AbstractMapBasedMultiset<E extends @Immutable Object>.@ReceiverDependentMutable MapBasedMultisetIterator
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[237,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable AbstractMapBasedMultiset<E extends @Immutable Object>.@ReceiverDependentMutable MapBasedMultisetIterator
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[257,28] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Iterator<@Mutable Entry<E extends @Immutable Object, @Mutable Count>>
+  required: @Mutable Iterator<@Mutable Entry<E extends @Immutable Object, @Mutable Count>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractMapBasedMultiset.java:[260,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable AbstractMapBasedMultiset<E extends @Immutable Object>.@ReceiverDependentMutable MapBasedMultisetIterator
+[WARNING]   ; The Checker Framework crashed.  Please report the crash.  Version: Checker Framework 3.49.5-eisop1-SNAPSHOT, branch pico-move-lazy, 2025-10-29, commit 3261311, dirty=true. 
+  Checker: class org.checkerframework.checker.pico.PICONoInitSubchecker
+  Visitor: class org.checkerframework.checker.pico.PICONoInitVisitor
+  Compilation unit: /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeMap.java
+  Last visited tree at line 432 column 16:
+            if (!rangeMap.asMapOfRanges().isEmpty()) {
+  Exception: org.checkerframework.javacutil.BugInCF: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>; org.checkerframework.javacutil.BugInCF: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.getTypeParameterElement(PropagationTypeAnnotator.java:226)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:132)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedWildcardType.accept(AnnotatedTypeMirror.java:2423)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:58)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:20)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.addDefaultAnnotations(GenericAnnotatedTypeFactory.java:1987)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:872)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:32)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:723)
+  	at org.checkerframework.framework.type.visitor.AbstractAtmComboVisitor.visit(AbstractAtmComboVisitor.java:34)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visit(AsSuperVisitor.java:109)
+  	at org.checkerframework.framework.type.AsSuperVisitor.asSuper(AsSuperVisitor.java:90)
+  	at org.checkerframework.framework.util.AnnotatedTypes.asSuper(AnnotatedTypes.java:120)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:518)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visitTypevar_Typevar(EquivalentAtmComboScanner.java:188)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:589)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:669)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.access$200(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism.resolve(AbstractQualifierPolymorphism.java:212)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUsePreSubstitution(GenericAnnotatedTypeFactory.java:2342)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2634)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2545)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUse(GenericAnnotatedTypeFactory.java:2331)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2505)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:419)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:82)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1813)
+  	at jdk.compiler/com.sun.source.util.SimpleTreeVisitor.visit(SimpleTreeVisitor.java:81)
+  	at org.checkerframework.framework.type.TypeFromTree.fromExpression(TypeFromTree.java:43)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.fromExpression(AnnotatedTypeFactory.java:1861)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.getAnnotatedType(AnnotatedTypeFactory.java:1501)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.getValueFromFactory(CFAbstractTransfer.java:225)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:1152)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:106)
+  	at org.checkerframework.dataflow.cfg.node.MethodInvocationNode.accept(MethodInvocationNode.java:156)
+  	at org.checkerframework.dataflow.analysis.AbstractAnalysis.callTransferFunction(AbstractAnalysis.java:396)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.callTransferFunction(ForwardAnalysisImpl.java:402)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.callTransferFunction(CFAbstractAnalysis.java:246)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysisBlock(ForwardAnalysisImpl.java:157)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysis(ForwardAnalysisImpl.java:110)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.performAnalysis(CFAbstractAnalysis.java:155)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.analyze(GenericAnnotatedTypeFactory.java:1629)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.performFlowAnalysis(GenericAnnotatedTypeFactory.java:1518)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.checkAndPerformFlowAnalysis(GenericAnnotatedTypeFactory.java:2132)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.preProcessClassTree(GenericAnnotatedTypeFactory.java:452)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:631)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:197)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)
+  	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:60)
+  	at org.checkerframework.framework.source.SourceVisitor.visit(SourceVisitor.java:91)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1440)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1355)
+  	at org.checkerframework.javacutil.AbstractTypeProcessor$AttributionTaskListener.finished(AbstractTypeProcessor.java:193)
+  	at jdk.compiler/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:854)
+  	at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1394)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1351)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:946)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
+  	at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
+  	at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)
+  Caused by: java.lang.Throwable
+  	at org.checkerframework.javacutil.BugInCF.<init>(BugInCF.java:39)
+  	... 82 more
+  
+  Underlying Exception: java.lang.Throwable; java.lang.Throwable
+  	at org.checkerframework.javacutil.BugInCF.<init>(BugInCF.java:39)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.getTypeParameterElement(PropagationTypeAnnotator.java:226)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:132)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedWildcardType.accept(AnnotatedTypeMirror.java:2423)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:58)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:20)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.addDefaultAnnotations(GenericAnnotatedTypeFactory.java:1987)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:872)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:32)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:723)
+  	at org.checkerframework.framework.type.visitor.AbstractAtmComboVisitor.visit(AbstractAtmComboVisitor.java:34)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visit(AsSuperVisitor.java:109)
+  	at org.checkerframework.framework.type.AsSuperVisitor.asSuper(AsSuperVisitor.java:90)
+  	at org.checkerframework.framework.util.AnnotatedTypes.asSuper(AnnotatedTypes.java:120)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:518)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visitTypevar_Typevar(EquivalentAtmComboScanner.java:188)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:589)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:669)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.access$200(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism.resolve(AbstractQualifierPolymorphism.java:212)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUsePreSubstitution(GenericAnnotatedTypeFactory.java:2342)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2634)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2545)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUse(GenericAnnotatedTypeFactory.java:2331)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2505)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:419)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:82)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1813)
+  	at jdk.compiler/com.sun.source.util.SimpleTreeVisitor.visit(SimpleTreeVisitor.java:81)
+  	at org.checkerframework.framework.type.TypeFromTree.fromExpression(TypeFromTree.java:43)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.fromExpression(AnnotatedTypeFactory.java:1861)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.getAnnotatedType(AnnotatedTypeFactory.java:1501)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.getValueFromFactory(CFAbstractTransfer.java:225)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:1152)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:106)
+  	at org.checkerframework.dataflow.cfg.node.MethodInvocationNode.accept(MethodInvocationNode.java:156)
+  	at org.checkerframework.dataflow.analysis.AbstractAnalysis.callTransferFunction(AbstractAnalysis.java:396)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.callTransferFunction(ForwardAnalysisImpl.java:402)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.callTransferFunction(CFAbstractAnalysis.java:246)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysisBlock(ForwardAnalysisImpl.java:157)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysis(ForwardAnalysisImpl.java:110)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.performAnalysis(CFAbstractAnalysis.java:155)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.analyze(GenericAnnotatedTypeFactory.java:1629)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.performFlowAnalysis(GenericAnnotatedTypeFactory.java:1518)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.checkAndPerformFlowAnalysis(GenericAnnotatedTypeFactory.java:2132)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.preProcessClassTree(GenericAnnotatedTypeFactory.java:452)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:631)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:197)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)
+  	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:60)
+  	at org.checkerframework.framework.source.SourceVisitor.visit(SourceVisitor.java:91)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1440)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1355)
+  	at org.checkerframework.javacutil.AbstractTypeProcessor$AttributionTaskListener.finished(AbstractTypeProcessor.java:193)
+  	at jdk.compiler/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:854)
+  	at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1394)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1351)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:946)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
+  	at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
+  	at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)
+/Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/CaseFormat.java:[118,28] [[immutability, pico, piconoinit, allcheckers]:implicit.shallow.immutable] Write an explicit mutable qualifier if wants to exclude the field from the abstract state! Otherwise change the class mutability of this object !
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultimap.java:[118,89] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of HashMultimapGwtSerializationDependencies constructor.
+  found   : @Mutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultimap.java:[125,89] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of HashMultimapGwtSerializationDependencies constructor.
+  found   : @Mutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultimap.java:[126,11] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of AbstractMultimap.putAll.
+  found   : @ReceiverDependentMutable Multimap<capture#0270 extends K extends @Immutable Object, capture#0271 extends V extends @Readonly Object>
+  required: @Mutable Multimap<? extends K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultimap.java:[138,49] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<V extends @Readonly Object>
+  method return type: @PolyMutable Set<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultimap.java:[148,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Serialization.writeMultimap.
+  found   : @ReceiverDependentMutable HashMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultimap.java:[154,25] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable HashMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultimap.java:[157,10] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setMap(java.util.Map<K,java.util.Collection<V>>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable HashMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultimap.java:[158,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Serialization.populateMultimap.
+  found   : @ReceiverDependentMutable HashMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayListMultimap.java:[125,89] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of ArrayListMultimapGwtSerializationDependencies constructor.
+  found   : @Mutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayListMultimap.java:[134,15] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Multimap<capture#0272 [ extends K [ extends @Immutable Object super @PICOBottom NullType ] super @PICOBottom NullType ], capture#0273 [ extends V [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" to "@Mutable ArrayListMultimap<capture#0274 [ extends @Immutable Object super @PICOBottom NullType ], capture#0275 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayListMultimap.java:[136,10] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to putAll(com.google.common.collect.Multimap<? extends K,? extends V>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable ArrayListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayListMultimap.java:[136,11] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of AbstractMultimap.putAll.
+  found   : @ReceiverDependentMutable Multimap<capture#0276 extends K extends @Immutable Object, capture#0277 extends V extends @Readonly Object>
+  required: @Mutable Multimap<? extends K extends @Immutable Object, ? extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayListMultimap.java:[169,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Serialization.writeMultimap.
+  found   : @ReceiverDependentMutable ArrayListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayListMultimap.java:[175,25] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable ArrayListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayListMultimap.java:[178,10] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setMap(java.util.Map<K,java.util.Collection<V>>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable ArrayListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ArrayListMultimap.java:[179,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Serialization.populateMultimap.
+  found   : @ReceiverDependentMutable ArrayListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingQueue.java:[104,16] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to add(E) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable ForwardingQueue<E extends @Readonly Object>
+  required: @Mutable ForwardingCollection<E extends @Readonly Object>
+[WARNING]   ; The Checker Framework crashed.  Please report the crash.  Version: Checker Framework 3.49.5-eisop1-SNAPSHOT, branch pico-move-lazy, 2025-10-29, commit 3261311, dirty=true. 
+  Checker: class org.checkerframework.checker.pico.PICONoInitSubchecker
+  Visitor: class org.checkerframework.checker.pico.PICONoInitVisitor
+  Compilation unit: /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableRangeMap.java
+  Last visited tree at line 96 column 38:
+      Map<Range<K>, ? extends V> map = rangeMap.asMapOfRanges();
+  Exception: org.checkerframework.javacutil.BugInCF: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>; org.checkerframework.javacutil.BugInCF: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.getTypeParameterElement(PropagationTypeAnnotator.java:226)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:132)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedWildcardType.accept(AnnotatedTypeMirror.java:2423)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:58)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:20)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.addDefaultAnnotations(GenericAnnotatedTypeFactory.java:1987)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:872)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:32)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:723)
+  	at org.checkerframework.framework.type.visitor.AbstractAtmComboVisitor.visit(AbstractAtmComboVisitor.java:34)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visit(AsSuperVisitor.java:109)
+  	at org.checkerframework.framework.type.AsSuperVisitor.asSuper(AsSuperVisitor.java:90)
+  	at org.checkerframework.framework.util.AnnotatedTypes.asSuper(AnnotatedTypes.java:120)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:518)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visitTypevar_Typevar(EquivalentAtmComboScanner.java:188)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:589)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:669)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.access$200(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism.resolve(AbstractQualifierPolymorphism.java:212)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUsePreSubstitution(GenericAnnotatedTypeFactory.java:2342)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2634)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2545)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUse(GenericAnnotatedTypeFactory.java:2331)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2505)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:419)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:82)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1813)
+  	at jdk.compiler/com.sun.source.util.SimpleTreeVisitor.visit(SimpleTreeVisitor.java:81)
+  	at org.checkerframework.framework.type.TypeFromTree.fromExpression(TypeFromTree.java:43)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.fromExpression(AnnotatedTypeFactory.java:1861)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.getAnnotatedType(AnnotatedTypeFactory.java:1501)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.getValueFromFactory(CFAbstractTransfer.java:225)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:1152)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:106)
+  	at org.checkerframework.dataflow.cfg.node.MethodInvocationNode.accept(MethodInvocationNode.java:156)
+  	at org.checkerframework.dataflow.analysis.AbstractAnalysis.callTransferFunction(AbstractAnalysis.java:396)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.callTransferFunction(ForwardAnalysisImpl.java:402)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.callTransferFunction(CFAbstractAnalysis.java:246)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysisBlock(ForwardAnalysisImpl.java:157)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysis(ForwardAnalysisImpl.java:110)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.performAnalysis(CFAbstractAnalysis.java:155)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.analyze(GenericAnnotatedTypeFactory.java:1629)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.performFlowAnalysis(GenericAnnotatedTypeFactory.java:1518)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.checkAndPerformFlowAnalysis(GenericAnnotatedTypeFactory.java:2132)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.preProcessClassTree(GenericAnnotatedTypeFactory.java:452)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:631)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:197)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)
+  	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:60)
+  	at org.checkerframework.framework.source.SourceVisitor.visit(SourceVisitor.java:91)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1440)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1355)
+  	at org.checkerframework.javacutil.AbstractTypeProcessor$AttributionTaskListener.finished(AbstractTypeProcessor.java:193)
+  	at jdk.compiler/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:854)
+  	at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1394)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1351)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:946)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
+  	at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
+  	at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)
+  Caused by: java.lang.Throwable
+  	at org.checkerframework.javacutil.BugInCF.<init>(BugInCF.java:39)
+  	... 82 more
+  
+  Underlying Exception: java.lang.Throwable; java.lang.Throwable
+  	at org.checkerframework.javacutil.BugInCF.<init>(BugInCF.java:39)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.getTypeParameterElement(PropagationTypeAnnotator.java:226)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:132)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.visitWildcard(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.AnnotatedTypeMirror$AnnotatedWildcardType.accept(AnnotatedTypeMirror.java:2423)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.scan(AnnotatedTypeScanner.java:207)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:75)
+  	at org.checkerframework.framework.type.typeannotator.PropagationTypeAnnotator.scan(PropagationTypeAnnotator.java:36)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:58)
+  	at org.checkerframework.framework.type.typeannotator.ListTypeAnnotator.scan(ListTypeAnnotator.java:20)
+  	at org.checkerframework.framework.type.visitor.AnnotatedTypeScanner.visit(AnnotatedTypeScanner.java:195)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.addDefaultAnnotations(GenericAnnotatedTypeFactory.java:1987)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:872)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visitWildcard_Wildcard(AsSuperVisitor.java:32)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:723)
+  	at org.checkerframework.framework.type.visitor.AbstractAtmComboVisitor.visit(AbstractAtmComboVisitor.java:34)
+  	at org.checkerframework.framework.type.AsSuperVisitor.visit(AsSuperVisitor.java:109)
+  	at org.checkerframework.framework.type.AsSuperVisitor.asSuper(AsSuperVisitor.java:90)
+  	at org.checkerframework.framework.util.AnnotatedTypes.asSuper(AnnotatedTypes.java:120)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:518)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visitTypevar_Typevar(EquivalentAtmComboScanner.java:188)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:589)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitTypevar_Typevar(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:669)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:556)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visitDeclared_Declared(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.util.AtmCombo.accept(AtmCombo.java:315)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.scan(EquivalentAtmComboScanner.java:57)
+  	at org.checkerframework.framework.type.visitor.EquivalentAtmComboScanner.visit(EquivalentAtmComboScanner.java:37)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.visit(AbstractQualifierPolymorphism.java:529)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism$PolyCollector.access$200(AbstractQualifierPolymorphism.java:395)
+  	at org.checkerframework.framework.type.poly.AbstractQualifierPolymorphism.resolve(AbstractQualifierPolymorphism.java:212)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUsePreSubstitution(GenericAnnotatedTypeFactory.java:2342)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2634)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2545)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.methodFromUse(GenericAnnotatedTypeFactory.java:2331)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.methodFromUse(AnnotatedTypeFactory.java:2505)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:419)
+  	at org.checkerframework.framework.type.TypeFromExpressionVisitor.visitMethodInvocation(TypeFromExpressionVisitor.java:82)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1813)
+  	at jdk.compiler/com.sun.source.util.SimpleTreeVisitor.visit(SimpleTreeVisitor.java:81)
+  	at org.checkerframework.framework.type.TypeFromTree.fromExpression(TypeFromTree.java:43)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.fromExpression(AnnotatedTypeFactory.java:1861)
+  	at org.checkerframework.framework.type.AnnotatedTypeFactory.getAnnotatedType(AnnotatedTypeFactory.java:1501)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.getValueFromFactory(CFAbstractTransfer.java:225)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:1152)
+  	at org.checkerframework.framework.flow.CFAbstractTransfer.visitMethodInvocation(CFAbstractTransfer.java:106)
+  	at org.checkerframework.dataflow.cfg.node.MethodInvocationNode.accept(MethodInvocationNode.java:156)
+  	at org.checkerframework.dataflow.analysis.AbstractAnalysis.callTransferFunction(AbstractAnalysis.java:396)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.callTransferFunction(ForwardAnalysisImpl.java:402)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.callTransferFunction(CFAbstractAnalysis.java:246)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysisBlock(ForwardAnalysisImpl.java:157)
+  	at org.checkerframework.dataflow.analysis.ForwardAnalysisImpl.performAnalysis(ForwardAnalysisImpl.java:110)
+  	at org.checkerframework.framework.flow.CFAbstractAnalysis.performAnalysis(CFAbstractAnalysis.java:155)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.analyze(GenericAnnotatedTypeFactory.java:1629)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.performFlowAnalysis(GenericAnnotatedTypeFactory.java:1518)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.checkAndPerformFlowAnalysis(GenericAnnotatedTypeFactory.java:2132)
+  	at org.checkerframework.framework.type.GenericAnnotatedTypeFactory.preProcessClassTree(GenericAnnotatedTypeFactory.java:452)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:631)
+  	at org.checkerframework.common.basetype.BaseTypeVisitor.visitClass(BaseTypeVisitor.java:197)
+  	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)
+  	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:60)
+  	at org.checkerframework.framework.source.SourceVisitor.visit(SourceVisitor.java:91)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1440)
+  	at org.checkerframework.framework.source.SourceChecker.typeProcess(SourceChecker.java:1355)
+  	at org.checkerframework.javacutil.AbstractTypeProcessor$AttributionTaskListener.finished(AbstractTypeProcessor.java:193)
+  	at jdk.compiler/com.sun.tools.javac.api.ClientCodeWrapper$WrappedTaskListener.finished(ClientCodeWrapper.java:854)
+  	at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1394)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1351)
+  	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:946)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
+  	at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
+  	at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
+  	at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)
+/Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EmptyContiguousSet.java:[157,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable EmptyContiguousSet<C extends @Mutable Comparable</*RAW*/>>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EmptyContiguousSet.java:[157,13] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for EmptyContiguousSet constructor
+  unsatisfiable constraint: inference type: com.google.common.collect.EmptyContiguousSet<C> <: @Mutable Object
+  inference type: com.google.common.collect.EmptyContiguousSet<C> -> @Mutable Object
+  From: Constraint between method call type and target type for method call:new EmptyContiguousSet<>(domain)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ContiguousSet.java:[110,30] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : @Immutable Integer
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ContiguousSet.java:[111,17] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ContiguousSet.create
+  unsatisfiable constraint: @Immutable Integer <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Integer <: use of C from Range.closed(lower, upper)
+  From complementary bound.: @Immutable Integer -> use of C from Range.closed(lower, upper)
+  @Immutable int -> use of C from Range.closed(lower, upper)
+  lower -> use of C from Range.closed(lower, upper)
+  From: Argument constraint
+  @Immutable Integer <: @Mutable Comparable</*RAW*/>
+  use of C from Range.closed(lower, upper) = use of C from create(Range.closed(lower, upper), DiscreteDomain.integers())
+  From complementary bound.: use of C from Range.closed(lower, upper) <= use of C from create(Range.closed(lower, upper), DiscreteDomain.integers())
+  inference type: com.google.common.collect.Range<C> <: inference type: com.google.common.collect.Range<C>
+  inference type: com.google.common.collect.Range<C> -> inference type: com.google.common.collect.Range<C>
+  From: Constraint between method call type and target type for method call:Range.closed(lower, upper)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ContiguousSet.java:[123,30] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : @Immutable Long
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ContiguousSet.java:[124,17] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ContiguousSet.create
+  unsatisfiable constraint: @Immutable Long <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Long <: use of C from Range.closed(lower, upper)
+  From complementary bound.: @Immutable Long -> use of C from Range.closed(lower, upper)
+  @Immutable long -> use of C from Range.closed(lower, upper)
+  lower -> use of C from Range.closed(lower, upper)
+  From: Argument constraint
+  @Immutable Long <: @Mutable Comparable</*RAW*/>
+  use of C from Range.closed(lower, upper) = use of C from create(Range.closed(lower, upper), DiscreteDomain.longs())
+  From complementary bound.: use of C from Range.closed(lower, upper) <= use of C from create(Range.closed(lower, upper), DiscreteDomain.longs())
+  inference type: com.google.common.collect.Range<C> <: inference type: com.google.common.collect.Range<C>
+  inference type: com.google.common.collect.Range<C> -> inference type: com.google.common.collect.Range<C>
+  From: Constraint between method call type and target type for method call:Range.closed(lower, upper)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ContiguousSet.java:[136,30] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : @Immutable Integer
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ContiguousSet.java:[137,17] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ContiguousSet.create
+  unsatisfiable constraint: @Immutable Integer <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Integer <: use of C from Range.closedOpen(lower, upper)
+  From complementary bound.: @Immutable Integer -> use of C from Range.closedOpen(lower, upper)
+  @Immutable int -> use of C from Range.closedOpen(lower, upper)
+  lower -> use of C from Range.closedOpen(lower, upper)
+  From: Argument constraint
+  @Immutable Integer <: @Mutable Comparable</*RAW*/>
+  use of C from Range.closedOpen(lower, upper) = use of C from create(Range.closedOpen(lower, upper), DiscreteDomain.integers())
+  From complementary bound.: use of C from Range.closedOpen(lower, upper) <= use of C from create(Range.closedOpen(lower, upper), DiscreteDomain.integers())
+  inference type: com.google.common.collect.Range<C> <: inference type: com.google.common.collect.Range<C>
+  inference type: com.google.common.collect.Range<C> -> inference type: com.google.common.collect.Range<C>
+  From: Constraint between method call type and target type for method call:Range.closedOpen(lower, upper)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ContiguousSet.java:[149,30] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : @Immutable Long
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ContiguousSet.java:[150,17] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ContiguousSet.create
+  unsatisfiable constraint: @Immutable Long <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Long <: use of C from Range.closedOpen(lower, upper)
+  From complementary bound.: @Immutable Long -> use of C from Range.closedOpen(lower, upper)
+  @Immutable long -> use of C from Range.closedOpen(lower, upper)
+  lower -> use of C from Range.closedOpen(lower, upper)
+  From: Argument constraint
+  @Immutable Long <: @Mutable Comparable</*RAW*/>
+  use of C from Range.closedOpen(lower, upper) = use of C from create(Range.closedOpen(lower, upper), DiscreteDomain.longs())
+  From complementary bound.: use of C from Range.closedOpen(lower, upper) <= use of C from create(Range.closedOpen(lower, upper), DiscreteDomain.longs())
+  inference type: com.google.common.collect.Range<C> <: inference type: com.google.common.collect.Range<C>
+  inference type: com.google.common.collect.Range<C> -> inference type: com.google.common.collect.Range<C>
+  From: Constraint between method call type and target type for method call:Range.closedOpen(lower, upper)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/ListenerCallQueue.java:[100,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter label of ListenerCallQueue.enqueueHelper.
+  found   : @Immutable String
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMultiset.java:[50,87] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularImmutableMultiset.create.
+  found   : @Immutable ImmutableList<@Mutable Entry<@Mutable Object>>
+  required: @Mutable Collection<? extends @Mutable Entry<? extends @Mutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMultiset.java:[92,43] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for JdkBackedImmutableMultiset.create
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  use of E from JdkBackedImmutableMultiset.create(ImmutableList.asImmutableList(entryArray)) = E extends @Readonly Object
+  From complementary bound.: use of E from JdkBackedImmutableMultiset.create(ImmutableList.asImmutableList(entryArray)) <= E extends @Readonly Object
+  inference type: com.google.common.collect.ImmutableMultiset<E> <: @Immutable ImmutableMultiset<E extends @Readonly Object>
+  inference type: com.google.common.collect.ImmutableMultiset<E> -> @Immutable ImmutableMultiset<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:JdkBackedImmutableMultiset.create(ImmutableList.asImmutableList(entryArray))
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMultiset.java:[143,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable ImmutableEntry<E extends @Readonly Object> @Mutable []
+  required: @Immutable ImmutableEntry<E extends @Readonly Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMultiset.java:[144,21] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable ImmutableEntry<? extends @Readonly Object> @Mutable []
+  required: @Immutable ImmutableEntry<? extends @Readonly Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMultiset.java:[196,85] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of ElementSet constructor.
+  found   : @Immutable List<@Mutable Entry<E extends @Readonly Object>>
+  required: @Mutable List<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMultiset.java:[196,85] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Arrays.asList
+  unsatisfiable constraint: @Immutable ImmutableEntry<E extends @Readonly Object> <: @Mutable Entry<E extends @Readonly Object>
+  use of T from Arrays.asList(entries) = @Mutable Entry<E extends @Readonly Object>
+  From complementary bound.: use of T from Arrays.asList(entries) <= @Mutable Entry<E extends @Readonly Object>
+  inference type: java.util.List<T> <: @Mutable List<@Mutable Entry<E extends @Readonly Object>>
+  inference type: java.util.List<T> -> @Mutable List<@Mutable Entry<E extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:Arrays.asList(entries)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMultiset.java:[196,96] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of ElementSet constructor.
+  found   : @Immutable RegularImmutableMultiset<E extends @Readonly Object>
+  required: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMultiset.java:[201,18] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableEntry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapValues.java:[58,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable ImmutableMapValues<K extends @Immutable Object, V extends @Readonly Object>.@Readonly <anonymous com.google.common.collect.ImmutableMapValues$1> <init>(@Immutable ImmutableMapValues<K extends @Immutable Object, V extends @Readonly Object> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapValues.java:[68,28] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Iterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapValues.java:[80,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter iterator of Iterators.contains.
+  found   : @Readonly UnmodifiableIterator<V extends @Readonly Object>
+  required: @Mutable Iterator<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapValues.java:[91,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable ImmutableMapValues<K extends @Immutable Object, V extends @Readonly Object>.@Readonly <anonymous com.google.common.collect.ImmutableMapValues$2> <init>(@Immutable ImmutableMapValues<K extends @Immutable Object, V extends @Readonly Object> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapValues.java:[91,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly ImmutableList<V extends @Readonly Object>
+  method return type: @Immutable ImmutableList<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Comparators.java:[167,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter comparator of Comparators.least.
+  found   : @Readonly Comparator<capture#0278 extends @Readonly Object super T extends @Mutable Object>
+  required: @Mutable Comparator<? extends @Readonly Object super T extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[152,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[163,18] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[164,18] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[218,54] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Map<K extends @Immutable Object, @Mutable KeyList<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, @Mutable KeyList<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[223,10] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to putAll(com.google.common.collect.Multimap<? extends K,? extends V>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable LinkedListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[293,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[293,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[295,17] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[298,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[298,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[300,17] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[318,37] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[318,37] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from requireNonNull(node.nextSibling) <: @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from requireNonNull(node.nextSibling) -> @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:requireNonNull(node.nextSibling)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[320,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[320,47] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[325,37] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[325,37] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from requireNonNull(node.previousSibling) <: @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from requireNonNull(node.previousSibling) -> @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:requireNonNull(node.previousSibling)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[327,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[327,47] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[351,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[357,15] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[386,15] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable LinkedListMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable NodeIterator
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[387,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[420,15] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable LinkedListMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable NodeIterator
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[421,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[446,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[452,62] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable HashSet<K extends @Immutable Object>
+  required: @ReceiverDependentMutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[453,48] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Node<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Node<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[477,18] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to add(E) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Set<K extends @Immutable Object>
+  required: @Mutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[480,46] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to add(E) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Set<K extends @Immutable Object>
+  required: @Mutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[490,23] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable LinkedListMultimap<K extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable DistinctKeyIterator
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[690,27] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<V extends @Readonly Object>
+  method return type: @Mutable List<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[707,16] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[780,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of Keys constructor.
+  found   : @ReceiverDependentMutable LinkedListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[794,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable List<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[845,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Collection<@ReceiverDependentMutable Entry<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>>" to "@Mutable List<@Mutable Entry<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[880,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable AsMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Map<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[880,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of AsMap constructor.
+  found   : @ReceiverDependentMutable LinkedListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[901,17] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable LinkedListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[901,40] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable LinkedHashMap<K extends @Immutable Object, @Mutable KeyList<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, @Mutable KeyList<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[905,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[908,9] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to put(K,V) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable LinkedListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable LinkedListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedListMultimap.java:[927,83] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  method return type: @ReceiverDependentMutable Map<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[191,30] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Cell<capture#0280 [ extends @Immutable Object super @PICOBottom NullType ], capture#0281 [ extends @Immutable Object super @PICOBottom NullType ], capture#0282 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[297,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter table of Tables.transpose.
+  found   : @Readonly Table<capture#0283 extends C extends @Immutable Object, capture#0284 extends R extends @Immutable Object, capture#0285 extends V extends @Readonly Object>
+  required: @Mutable Table<capture#0283 extends C extends @Immutable Object, capture#0284 extends R extends @Immutable Object, capture#0285 extends V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[336,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Cell<@Immutable Object, @Immutable Object, @Readonly Object>
+  method return type: @Mutable Cell<? extends @Immutable Object, ? extends @Immutable Object, ? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[343,49] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to cellSet() not allowed on the given receiver.
+  found   : @PICOLost Table<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Table<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[349,53] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to cellSet() not allowed on the given receiver.
+  found   : @PICOLost Table<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Table<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[444,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Function<capture#0279 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @ReceiverDependentMutable Function<? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[444,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Function<capture#0279 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object> <: @ReceiverDependentMutable Function<? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  use of T from checkNotNull(function) <: @ReceiverDependentMutable Function<? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(function) -> @ReceiverDependentMutable Function<? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(function)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[459,26] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to apply(F) not allowed on the given receiver.
+  found   : @PICOLost Function<? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @PICOLost Function<capture#0286 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[492,69] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove(@org.checkerframework.checker.pico.qual.Readonly java.lang.Object,@org.checkerframework.checker.pico.qual.Readonly java.lang.Object) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Table<R extends @Immutable Object, C extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable Table<R extends @Immutable Object, C extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[498,33] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<C extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @PolyMutable Map<C extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[498,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformValues.
+  found   : @PolyMutable Map<C extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable Map<C extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[498,57] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Maps.transformValues.
+  found   : @PolyMutable Function<capture#0287 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[503,33] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<R extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @PolyMutable Map<R extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[503,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformValues.
+  found   : @PolyMutable Map<R extends @Immutable Object, V1 extends @Readonly Object>
+  required: @Mutable Map<R extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[503,63] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Maps.transformValues.
+  found   : @PolyMutable Function<capture#0288 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[510,30] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Cell<R extends @Immutable Object, C extends @Immutable Object, V2 extends @Readonly Object>
+  method return type: @Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[518,50] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to cellSet() not allowed on the given receiver.
+  found   : @PICOLost Table<R extends @Immutable Object, C extends @Immutable Object, V1 extends @Readonly Object>
+  required: @PICOLost Table<R extends @Immutable Object, C extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[518,77] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to cellFunction() not allowed on the given receiver.
+  found   : @Readonly TransformedTable<R extends @Immutable Object, C extends @Immutable Object, V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @PICOLost TransformedTable<R extends @Immutable Object, C extends @Immutable Object, V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[523,54] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to cellSet() not allowed on the given receiver.
+  found   : @PICOLost Table<R extends @Immutable Object, C extends @Immutable Object, V1 extends @Readonly Object>
+  required: @PICOLost Table<R extends @Immutable Object, C extends @Immutable Object, V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[523,84] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to cellFunction() not allowed on the given receiver.
+  found   : @Readonly TransformedTable<R extends @Immutable Object, C extends @Immutable Object, V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @PICOLost TransformedTable<R extends @Immutable Object, C extends @Immutable Object, V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[538,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Collection<V2 extends @Readonly Object>
+  method return type: @PolyMutable Collection<V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[538,52] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromCollection of Collections2.transform.
+  found   : @PolyMutable Collection<V1 extends @Readonly Object>
+  required: @Mutable Collection<V1 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[538,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter function of Collections2.transform.
+  found   : @PolyMutable Function<capture#0289 extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+  required: @Mutable Function<? extends @Readonly Object super V1 extends @Readonly Object, V2 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[550,33] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V2 extends @Readonly Object>>
+  method return type: @PolyMutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V2 extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[550,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformValues.
+  found   : @PolyMutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V1 extends @Readonly Object>>
+  required: @Mutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V1 extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[562,33] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<C extends @Immutable Object, @Mutable Map<R extends @Immutable Object, V2 extends @Readonly Object>>
+  method return type: @PolyMutable Map<C extends @Immutable Object, @Mutable Map<R extends @Immutable Object, V2 extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[562,53] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformValues.
+  found   : @PolyMutable Map<C extends @Immutable Object, @Mutable Map<R extends @Immutable Object, V1 extends @Readonly Object>>
+  required: @Mutable Map<C extends @Immutable Object, @Mutable Map<R extends @Immutable Object, V1 extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[596,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Table<capture#0290 [ extends R [ extends @Immutable Object super @PICOBottom NullType ] super @PICOBottom NullType ], capture#0291 [ extends C [ extends @Immutable Object super @PICOBottom NullType ] super @PICOBottom NullType ], capture#0292 [ extends V [ extends @Readonly Object super @PICOBottom NullType ] super @PICOBottom NullType ]>" to "@Mutable Table<R [ extends @Immutable Object super @PICOBottom NullType ], C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[647,40] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Map<C extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[652,40] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Set<R extends @Immutable Object>
+  method return type: @Mutable Set<R extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[658,40] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[663,47] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Collection<V extends @Readonly Object>
+  method return type: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[704,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Table<R [ extends @Immutable Object super @PICOBottom NullType ], C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable RowSortedTable<R [ extends @Immutable Object super @PICOBottom NullType ], C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[710,85] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to rowMap() not allowed on the given receiver.
+  found   : @Readonly RowSortedTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost RowSortedTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[715,67] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to rowKeySet() not allowed on the given receiver.
+  found   : @Readonly RowSortedTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost RowSortedTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Tables.java:[773,28] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Table<capture#0293 [ extends @Immutable Object super @PICOBottom NullType ], capture#0294 [ extends @Immutable Object super @PICOBottom NullType ], capture#0295 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[42,87] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[50,24] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[52,30] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ContiguousSet.create
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable</*RAW*/>
+  C extends @Readonly Comparable</*RAW*/> = use of C from ContiguousSet.create(range.intersection(other), domain)
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> <= use of C from ContiguousSet.create(range.intersection(other), domain)
+  @Immutable Range<C extends @Readonly Comparable</*RAW*/>> <: inference type: com.google.common.collect.Range<C>
+  @Immutable Range<C extends @Readonly Comparable</*RAW*/>> -> inference type: com.google.common.collect.Range<C>
+  range.intersection(other) -> inference type: com.google.common.collect.Range<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[53,33] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of EmptyContiguousSet.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[57,16] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[58,49] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.upTo
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable</*RAW*/> <: use of C from Range.upTo(toElement, BoundType.forBoolean(inclusive))
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> -> use of C from Range.upTo(toElement, BoundType.forBoolean(inclusive))
+  toElement -> use of C from Range.upTo(toElement, BoundType.forBoolean(inclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[62,16] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[66,13] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for EmptyContiguousSet constructor
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable</*RAW*/>
+  C extends @Readonly Comparable</*RAW*/> = use of C from new EmptyContiguousSet<>(domain)
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> <= use of C from new EmptyContiguousSet<>(domain)
+  @Immutable DiscreteDomain<C extends @Readonly Comparable</*RAW*/>> <: inference type: com.google.common.collect.DiscreteDomain<C>
+  @Immutable DiscreteDomain<C extends @Readonly Comparable</*RAW*/>> -> inference type: com.google.common.collect.DiscreteDomain<C>
+  domain -> inference type: com.google.common.collect.DiscreteDomain<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[69,19] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.range
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable</*RAW*/> <: use of C from Range.range(fromElement, BoundType.forBoolean(fromInclusive), toElement, BoundType.forBoolean(toInclusive))
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> -> use of C from Range.range(fromElement, BoundType.forBoolean(fromInclusive), toElement, BoundType.forBoolean(toInclusive))
+  fromElement -> use of C from Range.range(fromElement, BoundType.forBoolean(fromInclusive), toElement, BoundType.forBoolean(toInclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[75,16] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[76,51] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.downTo
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable</*RAW*/> <: use of C from Range.downTo(fromElement, BoundType.forBoolean(inclusive))
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> -> use of C from Range.downTo(fromElement, BoundType.forBoolean(inclusive))
+  fromElement -> use of C from Range.downTo(fromElement, BoundType.forBoolean(inclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[88,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable UnmodifiableIterator<C extends @Readonly Comparable</*RAW*/>>
+  method return type: @Immutable UnmodifiableIterator<C extends @Readonly Comparable</*RAW*/>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[94,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter left of RegularContiguousSet.equalsOrThrow.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[94,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter right of RegularContiguousSet.equalsOrThrow.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[102,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable UnmodifiableIterator<C extends @Readonly Comparable</*RAW*/>>
+  method return type: @Immutable UnmodifiableIterator<C extends @Readonly Comparable</*RAW*/>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[108,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter left of RegularContiguousSet.equalsOrThrow.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[108,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter right of RegularContiguousSet.equalsOrThrow.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[137,13] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable RegularContiguousSet<C extends @Readonly Comparable</*RAW*/>>.@Readonly <anonymous com.google.common.collect.RegularContiguousSet$3> <init>(@Immutable RegularContiguousSet<C extends @Readonly Comparable</*RAW*/>> this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[137,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly ImmutableList<C extends @Readonly Comparable</*RAW*/>>
+  method return type: @Immutable ImmutableList<C extends @Readonly Comparable</*RAW*/>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[145,35] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to size() not allowed on the given receiver.
+  found   : @Immutable RegularContiguousSet<C extends @Readonly Comparable</*RAW*/>>.@Mutable <anonymous com.google.common.collect.RegularContiguousSet$3>
+  required: @Immutable ImmutableAsList<C extends @Readonly Comparable</*RAW*/>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[183,23] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[183,53] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of ContiguousSet.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[192,32] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ContiguousSet.create
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable</*RAW*/> <: use of C from Range.closed(lowerEndpoint, upperEndpoint)
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> -> use of C from Range.closed(lowerEndpoint, upperEndpoint)
+  lowerEndpoint -> use of C from Range.closed(lowerEndpoint, upperEndpoint)
+  From: Argument constraint
+  C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable</*RAW*/>
+  use of C from Range.closed(lowerEndpoint, upperEndpoint) = use of C from ContiguousSet.create(Range.closed(lowerEndpoint, upperEndpoint), domain)
+  From complementary bound.: use of C from Range.closed(lowerEndpoint, upperEndpoint) <= use of C from ContiguousSet.create(Range.closed(lowerEndpoint, upperEndpoint), domain)
+  inference type: com.google.common.collect.Range<C> <: inference type: com.google.common.collect.Range<C>
+  inference type: com.google.common.collect.Range<C> -> inference type: com.google.common.collect.Range<C>
+  From: Constraint between method call type and target type for method call:Range.closed(lowerEndpoint, upperEndpoint)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[193,35] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of EmptyContiguousSet.
+  found   : C extends @Readonly Comparable</*RAW*/>
+  required: @Mutable Comparable</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[204,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable</*RAW*/> = use of C from Range.create(range.lowerBound.withLowerBoundType(lowerBoundType, domain), range.upperBound.withUpperBoundType(upperBoundType, domain))
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> <= use of C from Range.create(range.lowerBound.withLowerBoundType(lowerBoundType, domain), range.upperBound.withUpperBoundType(upperBoundType, domain))
+  @Immutable Cut<C extends @Readonly Comparable</*RAW*/>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable</*RAW*/>> -> inference type: com.google.common.collect.Cut<C>
+  range.lowerBound.withLowerBoundType(lowerBoundType, domain) -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[239,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable RegularContiguousSet<C extends @Mutable Comparable</*RAW*/>>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[239,13] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for RegularContiguousSet constructor
+  unsatisfiable constraint: inference type: com.google.common.collect.RegularContiguousSet<C> <: @Mutable Object
+  inference type: com.google.common.collect.RegularContiguousSet<C> -> @Mutable Object
+  From: Constraint between method call type and target type for method call:new RegularContiguousSet<>(range, domain)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularContiguousSet.java:[246,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for SerializedForm constructor
+  unsatisfiable constraint: C extends @Readonly Comparable</*RAW*/> <: @Mutable Comparable</*RAW*/>
+  C extends @Readonly Comparable</*RAW*/> = use of C from new SerializedForm<>(range, domain)
+  From complementary bound.: C extends @Readonly Comparable</*RAW*/> <= use of C from new SerializedForm<>(range, domain)
+  @Immutable Range<C extends @Readonly Comparable</*RAW*/>> <: inference type: com.google.common.collect.Range<C>
+  @Immutable Range<C extends @Readonly Comparable</*RAW*/>> -> inference type: com.google.common.collect.Range<C>
+  range -> inference type: com.google.common.collect.Range<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/ServiceManagerBridge.java:[31,27] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V of ImmutableMultimap.
+  found   : @Mutable Service
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/Striped.java:[146,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableList<L extends @Readonly Object>
+  method return type: @Mutable Iterable<L extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/Striped.java:[155,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg1 of List.set.
+  found   : L extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/Striped.java:[161,27] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg1 of List.set.
+  found   : L extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/Striped.java:[184,39] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<L extends @Readonly Object>
+  method return type: @Mutable Iterable<L extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/Striped.java:[373,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : L extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[126,48] [[immutability, pico, piconoinit, allcheckers]:implicit.shallow.immutable] Write an explicit mutable qualifier if wants to exclude the field from the abstract state! Otherwise change the class mutability of this object !
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[127,42] [[immutability, pico, piconoinit, allcheckers]:implicit.shallow.immutable] Write an explicit mutable qualifier if wants to exclude the field from the abstract state! Otherwise change the class mutability of this object !
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[134,18] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[140,18] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[141,14] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of TreeMultiset.successor.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[141,22] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter b of TreeMultiset.successor.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[274,19] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of TreeMultiset.count.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[397,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of TreeMultiset.count.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[566,8] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter endLink of TreeMultiset constructor.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[574,8] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter endLink of TreeMultiset constructor.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[652,27] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[652,27] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @ReceiverDependentMutable AvlNode<E extends @Readonly Object> <: @Mutable AvlNode<E extends @Readonly Object>
+  use of T from requireNonNull(pred) <: @Mutable AvlNode<E extends @Readonly Object>
+  From complementary bound.: use of T from requireNonNull(pred) -> @Mutable AvlNode<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:requireNonNull(pred)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[656,27] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[656,27] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @ReceiverDependentMutable AvlNode<E extends @Readonly Object> <: @Mutable AvlNode<E extends @Readonly Object>
+  use of T from requireNonNull(succ) <: @Mutable AvlNode<E extends @Readonly Object>
+  From complementary bound.: use of T from requireNonNull(succ) -> @Mutable AvlNode<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:requireNonNull(succ)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[671,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[671,14] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[672,16] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of TreeMultiset.successor.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[672,22] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter b of TreeMultiset.successor.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[676,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[680,11] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[680,13] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[681,24] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter b of TreeMultiset.successor.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[681,30] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter c of TreeMultiset.successor.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[685,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[703,13] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[703,27] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[708,43] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[717,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[717,29] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[722,44] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[731,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[742,17] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[745,13] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[745,30] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[755,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[760,17] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[763,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[763,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[783,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[795,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[798,13] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[798,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[812,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[815,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[815,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[834,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[852,17] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[855,13] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[855,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[873,17] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[876,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[876,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[898,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[907,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[909,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[914,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[921,22] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[932,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[934,13] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[934,29] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[945,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[947,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[947,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[956,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter node of TreeMultiset.distinctElements.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[956,82] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter node of TreeMultiset.distinctElements.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[957,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter node of AvlNode.totalCount.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[957,66] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter node of AvlNode.totalCount.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[961,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter node of AvlNode.height.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[961,54] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter node of AvlNode.height.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[975,18] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[975,37] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[982,17] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[982,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable AvlNode<E extends @Readonly Object>
+  required: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[987,17] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[992,20] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter node of AvlNode.height.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[992,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter node of AvlNode.height.
+  found   : @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  required: @Mutable AvlNode<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[998,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[999,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1004,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1010,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1011,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1016,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1031,30] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1031,63] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for MoreObjects.firstNonNull
+  unsatisfiable constraint: @ReceiverDependentMutable AvlNode<E extends @Readonly Object> <: @Mutable AvlNode<E extends @Readonly Object>
+  use of T from MoreObjects.firstNonNull(left.ceiling(comparator, e), this) <: @Mutable AvlNode<E extends @Readonly Object>
+  From complementary bound.: use of T from MoreObjects.firstNonNull(left.ceiling(comparator, e), this) -> @Mutable AvlNode<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:MoreObjects.firstNonNull(left.ceiling(comparator, e), this)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1033,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1043,31] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1043,64] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for MoreObjects.firstNonNull
+  unsatisfiable constraint: @ReceiverDependentMutable AvlNode<E extends @Readonly Object> <: @Mutable AvlNode<E extends @Readonly Object>
+  use of T from MoreObjects.firstNonNull(right.floor(comparator, e), this) <: @Mutable AvlNode<E extends @Readonly Object>
+  From complementary bound.: use of T from MoreObjects.firstNonNull(right.floor(comparator, e), this) -> @Mutable AvlNode<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:MoreObjects.firstNonNull(right.floor(comparator, e), this)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1045,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable AvlNode<E extends @Readonly Object>
+  method return type: @Mutable AvlNode<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1092,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of Serialization.writeMultiset.
+  found   : @ReceiverDependentMutable TreeMultiset<E extends @Readonly Object>
+  required: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1101,81] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter instance of FieldSetter.set.
+  found   : @ReceiverDependentMutable TreeMultiset<E extends @Readonly Object>
+  required: @Mutable AbstractSortedMultiset</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1103,13] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter instance of FieldSetter.set.
+  found   : @ReceiverDependentMutable TreeMultiset<E extends @Readonly Object>
+  required: @Mutable TreeMultiset</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1105,13] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter instance of FieldSetter.set.
+  found   : @ReceiverDependentMutable TreeMultiset<E extends @Readonly Object>
+  required: @Mutable TreeMultiset</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1107,67] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter instance of FieldSetter.set.
+  found   : @ReceiverDependentMutable TreeMultiset<E extends @Readonly Object>
+  required: @Mutable TreeMultiset</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeMultiset.java:[1109,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of Serialization.populateMultiset.
+  found   : @ReceiverDependentMutable TreeMultiset<E extends @Readonly Object>
+  required: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedMultiset.java:[52,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Comparator<capture#0296 extends @Readonly Object super E extends @Readonly Object>
+  required: @ReceiverDependentMutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedMultiset.java:[52,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Comparator<capture#0296 extends @Readonly Object super E extends @Readonly Object> <: @ReceiverDependentMutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+  use of T from checkNotNull(comparator) <: @ReceiverDependentMutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(comparator) -> @ReceiverDependentMutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(comparator)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedMultiset.java:[57,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Set<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable NavigableSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedMultiset.java:[62,53] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of NavigableElementSet constructor.
+  found   : @ReceiverDependentMutable AbstractSortedMultiset<E extends @Readonly Object>
+  required: @Mutable SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedMultiset.java:[67,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Comparator<capture#0297 extends @Readonly Object super E extends @Readonly Object>
+  method return type: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedMultiset.java:[92,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedMultiset.java:[105,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedMultiset.java:[133,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable SortedMultiset<E extends @Readonly Object>
+  method return type: @Mutable SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedMultiset.java:[133,49] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable AbstractSortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractSortedMultiset.java:[133,75] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable SortedMultiset<E extends @Readonly Object>
+  required: @ReceiverDependentMutable SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntrySetMultimap.java:[45,10] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter unfiltered of FilteredEntryMultimap constructor.
+  found   : @ReceiverDependentMutable SetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntrySetMultimap.java:[55,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Collection<V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@PolyMutable Set<V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntrySetMultimap.java:[70,22] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntrySetMultimap.java:[70,22] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Sets.filter
+  unsatisfiable constraint: @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  use of E from Sets.filter(unfiltered().entries(), entryPredicate()) <: capture#0298 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: capture#0298 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> <= inference type: ? super E
+  @Mutable Predicate<capture#0298 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>> <: inference type: com.google.common.base.Predicate<? super E>
+  @Mutable Predicate<capture#0298 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>> -> inference type: com.google.common.base.Predicate<? super E>
+  entryPredicate() -> inference type: com.google.common.base.Predicate<? super E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[59,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[59,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object> <: @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from checkNotNull(unfiltered) <: @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from checkNotNull(unfiltered) -> @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:checkNotNull(unfiltered)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[60,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Predicate<capture#0299 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[60,33] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable Predicate<capture#0299 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>> <: @ReceiverDependentMutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  use of T from checkNotNull(predicate) <: @ReceiverDependentMutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  From complementary bound.: use of T from checkNotNull(predicate) -> @ReceiverDependentMutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:checkNotNull(predicate)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[65,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[70,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Predicate<capture#0301 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Predicate<? extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[79,46] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter input of Predicate.apply.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  required: capture#0302 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[111,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Collection<V extends @Readonly Object>
+  method return type: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[111,35] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for MoreObjects.firstNonNull
+  unsatisfiable constraint: @ReceiverDependentMutable Collection<V extends @Readonly Object> <: @Mutable Collection<V extends @Readonly Object>
+  use of T from MoreObjects.firstNonNull(asMap().remove(key), unmodifiableEmptyCollection()) <: @Mutable Collection<V extends @Readonly Object>
+  From complementary bound.: use of T from MoreObjects.firstNonNull(asMap().remove(key), unmodifiableEmptyCollection()) -> @Mutable Collection<V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:MoreObjects.firstNonNull(asMap().remove(key), unmodifiableEmptyCollection())
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[117,8] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Collection<V extends @Readonly Object>
+  method return type: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[123,19] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Collection<@ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Collection<@ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[128,42] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter collection of FilteredEntryMultimap.filterCollection.
+  found   : @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[133,27] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for FilteredEntryMultimap.filterCollection
+  unsatisfiable constraint: @ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  use of E from filterCollection(unfiltered.entries(), predicate) <: capture#0300 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: capture#0300 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> <= inference type: ? super E
+  @ReceiverDependentMutable Predicate<capture#0300 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>> <: inference type: com.google.common.base.Predicate<? super E>
+  @ReceiverDependentMutable Predicate<capture#0300 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>> -> inference type: com.google.common.base.Predicate<? super E>
+  predicate -> inference type: com.google.common.base.Predicate<? super E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[138,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multimap of FilteredMultimapValues constructor.
+  found   : @ReceiverDependentMutable FilteredEntryMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable FilteredMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[153,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Set<K extends @Immutable Object>
+  method return type: @Mutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[157,92] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@ReceiverDependentMutable Entry<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>>
+  required: @Readonly Iterator<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[163,70] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter input of Predicate.apply.
+  found   : @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  required: capture#0303 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[195,12] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[208,12] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[221,42] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Collections.unmodifiableSet
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object <: use of E from Sets.newLinkedHashSet(result)
+  From complementary bound.: V extends @Readonly Object <= inference type: ? extends E
+  @Mutable List<V extends @Readonly Object> <: inference type: java.lang.Iterable<? extends E>
+  @Mutable List<V extends @Readonly Object> -> inference type: java.lang.Iterable<? extends E>
+  result -> inference type: java.lang.Iterable<? extends E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[277,44] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+  method return type: @Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[300,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable FilteredEntryMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable AsMap.@Mutable EntrySetImpl
+  method return type: @Mutable Set<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[371,12] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredEntryMultimap.java:[409,46] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter input of Predicate.apply.
+  found   : @Immutable Entry<K extends @Immutable Object>
+  required: capture#0304 extends @Readonly Object super @Mutable Entry<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SingletonImmutableTable.java:[63,26] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableMap.of
+  unsatisfiable constraint: @Mutable Map<R extends @Immutable Object, V extends @Immutable Object> <: @Immutable Object
+  @Mutable Map<R extends @Immutable Object, V extends @Immutable Object> <: use of V from ImmutableMap.of(singleColumnKey, (Map<R, V>)ImmutableMap.of(singleRowKey, singleValue))
+  From complementary bound.: @Mutable Map<R extends @Immutable Object, V extends @Immutable Object> -> use of V from ImmutableMap.of(singleColumnKey, (Map<R, V>)ImmutableMap.of(singleRowKey, singleValue))
+  (Map<R, V>)ImmutableMap.of(singleRowKey, singleValue) -> use of V from ImmutableMap.of(singleColumnKey, (Map<R, V>)ImmutableMap.of(singleRowKey, singleValue))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SingletonImmutableTable.java:[68,26] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableMap.of
+  unsatisfiable constraint: @Mutable Map<C extends @Immutable Object, V extends @Immutable Object> <: @Immutable Object
+  @Mutable Map<C extends @Immutable Object, V extends @Immutable Object> <: use of V from ImmutableMap.of(singleRowKey, (Map<C, V>)ImmutableMap.of(singleColumnKey, singleValue))
+  From complementary bound.: @Mutable Map<C extends @Immutable Object, V extends @Immutable Object> -> use of V from ImmutableMap.of(singleRowKey, (Map<C, V>)ImmutableMap.of(singleColumnKey, singleValue))
+  (Map<C, V>)ImmutableMap.of(singleColumnKey, singleValue) -> use of V from ImmutableMap.of(singleRowKey, (Map<C, V>)ImmutableMap.of(singleColumnKey, singleValue))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Queues.java:[218,26] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter E of PriorityBlockingQueue.
+  found   : E extends @Mutable Comparable</*RAW*/>
+  required: @PICOLost Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Queues.java:[444,29] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Synchronized.queue
+  unsatisfiable constraint: E extends @Readonly Object <: @Mutable Object
+  E extends @Readonly Object = use of E from Synchronized.queue(queue, null)
+  From complementary bound.: E extends @Readonly Object <= use of E from Synchronized.queue(queue, null)
+  @Mutable Queue<E extends @Readonly Object> <: inference type: java.util.Queue<E>
+  @Mutable Queue<E extends @Readonly Object> -> inference type: java.util.Queue<E>
+  queue -> inference type: java.util.Queue<E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EmptyImmutableSetMultimap.java:[33,80] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V of ImmutableSetMultimap.
+  found   : @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EmptyImmutableSetMultimap.java:[37,66] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of ImmutableSetMultimap constructor.
+  found   : @Immutable ImmutableMap<@Immutable Object, @Immutable ImmutableSet<@Mutable Object>>
+  required: @Immutable ImmutableMap<@Immutable Object, @Immutable ImmutableSet<@Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EmptyImmutableSetMultimap.java:[41,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable EmptyImmutableSetMultimap
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SortedMultisets.java:[54,22] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable SortedMultiset<E extends @Readonly Object>
+  required: @ReceiverDependentMutable SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SortedMultisets.java:[59,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable SortedMultiset<E extends @Readonly Object>
+  method return type: @Mutable SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SortedMultisets.java:[90,30] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for SortedMultisets.getElementOrThrow
+  unsatisfiable constraint: E extends @Readonly Object <: @Mutable Object
+  E extends @Readonly Object = use of E from getElementOrThrow(multiset().firstEntry())
+  From complementary bound.: E extends @Readonly Object <= use of E from getElementOrThrow(multiset().firstEntry())
+  @Mutable Entry<E extends @Readonly Object> <: inference type: com.google.common.collect.Multiset.Entry<E>
+  @Mutable Entry<E extends @Readonly Object> -> inference type: com.google.common.collect.Multiset.Entry<E>
+  multiset().firstEntry() -> inference type: com.google.common.collect.Multiset.Entry<E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SortedMultisets.java:[96,30] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for SortedMultisets.getElementOrThrow
+  unsatisfiable constraint: E extends @Readonly Object <: @Mutable Object
+  E extends @Readonly Object = use of E from getElementOrThrow(multiset().lastEntry())
+  From complementary bound.: E extends @Readonly Object <= use of E from getElementOrThrow(multiset().lastEntry())
+  @Mutable Entry<E extends @Readonly Object> <: inference type: com.google.common.collect.Multiset.Entry<E>
+  @Mutable Entry<E extends @Readonly Object> -> inference type: com.google.common.collect.Multiset.Entry<E>
+  multiset().lastEntry() -> inference type: com.google.common.collect.Multiset.Entry<E>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ExplicitOrdering.java:[55,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of IncomparableValueException constructor.
+  found   : T extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedMultiset.java:[56,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable long @Mutable []
+  required: @Immutable long @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedMultiset.java:[64,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable long @Mutable []
+  required: @Immutable long @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedMultiset.java:[75,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSortedMultiset.java:[135,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter cumulativeCounts of RegularImmutableSortedMultiset constructor.
+  found   : @Immutable long @Immutable []
+  required: @Immutable long @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMultiset.java:[134,51] [[immutability, pico, piconoinit, allcheckers]:varargs.type.incompatible] incompatible types in varargs.
+  found   : E extends @Mutable Comparable<? extends @Readonly Object super E extends @Mutable Comparable<? extends @Readonly Object super E>> @Mutable []
+  required: E extends @Mutable Comparable<? extends @Readonly Object super E extends @Mutable Comparable<? extends @Readonly Object super E>> @PICOBottom []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMultiset.java:[144,51] [[immutability, pico, piconoinit, allcheckers]:varargs.type.incompatible] incompatible types in varargs.
+  found   : E extends @Mutable Comparable<? extends @Readonly Object super E extends @Mutable Comparable<? extends @Readonly Object super E>> @Mutable []
+  required: E extends @Mutable Comparable<? extends @Readonly Object super E extends @Mutable Comparable<? extends @Readonly Object super E>> @PICOBottom []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMultiset.java:[155,51] [[immutability, pico, piconoinit, allcheckers]:varargs.type.incompatible] incompatible types in varargs.
+  found   : E extends @Mutable Comparable<? extends @Readonly Object super E extends @Mutable Comparable<? extends @Readonly Object super E>> @Mutable []
+  required: E extends @Mutable Comparable<? extends @Readonly Object super E extends @Mutable Comparable<? extends @Readonly Object super E>> @PICOBottom []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMultiset.java:[166,51] [[immutability, pico, piconoinit, allcheckers]:varargs.type.incompatible] incompatible types in varargs.
+  found   : E extends @Mutable Comparable<? extends @Readonly Object super E extends @Mutable Comparable<? extends @Readonly Object super E>> @Mutable []
+  required: E extends @Mutable Comparable<? extends @Readonly Object super E extends @Mutable Comparable<? extends @Readonly Object super E>> @PICOBottom []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMultiset.java:[270,75] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of ImmutableSortedMultiset.copyOfSortedEntries.
+  found   : @Immutable ImmutableList<@Mutable Entry<E extends @Readonly Object>>
+  required: @Mutable Collection<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMultiset.java:[346,32] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ImmutableSortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMultiset.java:[598,26] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSortedMultiset<E extends @Readonly Object>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMultiset.java:[604,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of SerializedForm constructor.
+  found   : @Immutable ImmutableSortedMultiset<E extends @Readonly Object>
+  required: @Mutable SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MutableClassToInstanceMap.java:[128,31] [[immutability, pico, piconoinit, allcheckers]:type.argument.inference.crashed] Type argument inference crashed for MutableClassToInstanceMap.checkedEntry
+  error: An exception occurred:  False bound for: Constraint: inference type: capture#691 of ? extends B <: B extends @Readonly Object Result: FALSE
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedMultiset.java:[139,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedMultiset.java:[162,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedMultiset.java:[186,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedMultiset.java:[211,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Readonly Object>
+  method return type: @Mutable Entry<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[53,24] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable DescendingMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[53,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+  method return type: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[53,82] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Ordering<E extends @Readonly Object>
+  required: @ReceiverDependentMutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[55,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Comparator<capture#0305 extends @Readonly Object super E extends @Readonly Object>
+  method return type: @Mutable Comparator<? extends @Readonly Object super E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[64,24] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable DescendingMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[64,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  method return type: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[64,26] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableElementSet<E extends @Readonly Object>
+  required: @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[64,68] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of NavigableElementSet constructor.
+  found   : @ReceiverDependentMutable DescendingMultiset<E extends @Readonly Object>
+  required: @Mutable SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[66,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  method return type: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[131,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Set<@Mutable Entry<E extends @Readonly Object>>
+  method return type: @Mutable Set<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[131,39] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable DescendingMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[131,55] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<@Mutable Entry<E extends @Readonly Object>>
+  required: @ReceiverDependentMutable Set<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[162,26] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @ReceiverDependentMutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DescendingMultiset.java:[168,27] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of ForwardingCollection.standardToArray.
+  found   : T extends @Mutable Object @Mutable []
+  required: T extends @Mutable Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/escape/CharEscaper.java:[166,22] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of String constructor.
+  found   : @Immutable char @Mutable []
+  required: @Immutable char @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/escape/ArrayBasedEscaperMap.java:[79,30] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Collections.max
+  unsatisfiable constraint: @Immutable Character <: @Mutable Object
+  @Immutable Character <: use of T from Collections.max(map.keySet())
+  From complementary bound.: @Immutable Character <= inference type: ? extends T
+  @Mutable Set<@Immutable Character> <: inference type: java.util.Collection<? extends T>
+  @Mutable Set<@Immutable Character> -> inference type: java.util.Collection<? extends T>
+  map.keySet() -> inference type: java.util.Collection<? extends T>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EnumHashBiMap.java:[88,8] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter forward of AbstractBiMap constructor.
+  found   : @Mutable EnumMap<K extends @Immutable Enum<K extends @Immutable Enum<K>>, V extends @Immutable Object>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Enum<K>, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EnumHashBiMap.java:[89,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backward of AbstractBiMap constructor.
+  found   : @Mutable HashMap<V extends @Immutable Object, K extends @Immutable Enum<K>>
+  required: @ReceiverDependentMutable Map<V extends @Immutable Object, K extends @Immutable Enum<K>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EnumHashBiMap.java:[131,27] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Serialization.writeMap.
+  found   : @ReceiverDependentMutable EnumHashBiMap<K extends @Immutable Enum<K>, V extends @Immutable Object>
+  required: @Mutable Map<K extends @Immutable Enum<K>, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EnumHashBiMap.java:[138,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable EnumHashBiMap<K extends @Immutable Enum<K>, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EnumHashBiMap.java:[140,8] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter forward of AbstractBiMap.setDelegates.
+  found   : @Mutable EnumMap<K extends @Immutable Enum<K extends @Immutable Enum<K>>, V extends @Immutable Object>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Enum<K>, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EnumHashBiMap.java:[140,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backward of AbstractBiMap.setDelegates.
+  found   : @Mutable HashMap<V extends @Immutable Object, K extends @Immutable Enum<K extends @Immutable Enum<K>>>
+  required: @ReceiverDependentMutable Map<V extends @Immutable Object, K extends @Immutable Enum<K>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EnumHashBiMap.java:[141,30] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Serialization.populateMap.
+  found   : @ReceiverDependentMutable EnumHashBiMap<K extends @Immutable Enum<K>, V extends @Immutable Object>
+  required: @Mutable Map<K extends @Immutable Enum<K>, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[255,39] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PolyMutable AbstractBiMap<K extends @Immutable Object, V extends @Immutable Object>.@Mutable KeySet
+  required: @PolyMutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[263,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Set<K extends @Immutable Object>
+  method return type: @PolyMutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[307,41] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PolyMutable AbstractBiMap<K extends @Immutable Object, V extends @Immutable Object>.@Mutable ValueSet
+  required: @PolyMutable Set<V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[313,48] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<K extends @Immutable Object>
+  required: @ReceiverDependentMutable Set<V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[328,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Object @ReceiverDependentMutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[334,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of ForwardingCollection.standardToArray.
+  found   : T extends @Readonly Object @Mutable []
+  required: T extends @Readonly Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[351,41] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PolyMutable AbstractBiMap<K extends @Immutable Object, V extends @Immutable Object>.@Mutable EntrySet
+  required: @PolyMutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[385,60] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to entrySet() not allowed on the given receiver.
+  found   : @PICOLost Map<K extends @Immutable Object, V extends @Immutable Object>
+  required: @PICOLost Map<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[385,71] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@PICOLost Entry<K extends @Immutable Object, V extends @Immutable Object>>
+  required: @Readonly Iterator<@Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[416,57] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+  required: @ReceiverDependentMutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[420,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+  method return type: @Mutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[438,26] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#0306 [ extends @Immutable Object super @PICOBottom NullType ], capture#0307 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[466,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Object @ReceiverDependentMutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[472,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of ForwardingCollection.standardToArray.
+  found   : T extends @Readonly Object @Mutable []
+  required: T extends @Readonly Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[538,17] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter inverse of AbstractBiMap.setInverse.
+  found   : @Mutable AbstractBiMap<V extends @Immutable Object, K extends @Immutable Object>
+  required: @ReceiverDependentMutable AbstractBiMap<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/AbstractBiMap.java:[543,30] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable BiMap<K extends @Immutable Object, V extends @Immutable Object>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EmptyImmutableListMultimap.java:[37,77] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of ImmutableListMultimap constructor.
+  found   : @Immutable ImmutableMap<@Immutable Object, @Immutable ImmutableList<@Readonly Object>>
+  required: @Immutable ImmutableMap<@Immutable Object, @Immutable ImmutableList<@Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingList.java:[226,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter list of Lists.listIteratorImpl.
+  found   : @Readonly ForwardingList<E extends @Readonly Object>
+  required: @Mutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingList.java:[237,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable List<E extends @Readonly Object>
+  method return type: @PolyMutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingList.java:[237,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter list of Lists.subListImpl.
+  found   : @PolyMutable ForwardingList<E extends @Readonly Object>
+  required: @Mutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[214,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter initialContents of Builder.create.
+  found   : @Immutable Set<T extends B extends @Readonly Object>
+  required: @Mutable Iterable<? extends T extends B extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[599,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[602,21] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[645,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[666,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[667,29] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[670,21] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[691,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[692,26] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[711,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[712,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[728,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[835,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter target of QueueIterator.removeExact.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MinMaxPriorityQueue.java:[835,45] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: E extends @Readonly Object <: @Mutable Object
+  use of T from requireNonNull(lastFromForgetMeNot) <: @Mutable Object
+  From complementary bound.: use of T from requireNonNull(lastFromForgetMeNot) -> @Mutable Object
+  From: Constraint between method call type and target type for method call:requireNonNull(lastFromForgetMeNot)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableMapKeySet.java:[94,23] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSet<K extends @Immutable Object>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[102,79] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter R of TreeBasedTable.
+  found   : R extends @Mutable Comparable</*RAW*/>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[102,82] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C of TreeBasedTable.
+  found   : C extends @Mutable Comparable</*RAW*/>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[103,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for TreeBasedTable constructor
+  unsatisfiable constraint: R extends @Mutable Comparable</*RAW*/> <: @Immutable Object
+  use of R from new TreeBasedTable<>(Ordering.natural(), Ordering.natural()) = R extends @Mutable Comparable</*RAW*/>
+  From complementary bound.: use of R from new TreeBasedTable<>(Ordering.natural(), Ordering.natural()) <= R extends @Mutable Comparable</*RAW*/>
+  inference type: com.google.common.collect.TreeBasedTable<R,C,V> <: @Mutable TreeBasedTable<R extends @Mutable Comparable</*RAW*/>, C extends @Mutable Comparable</*RAW*/>, V extends @Readonly Object>
+  inference type: com.google.common.collect.TreeBasedTable<R,C,V> -> @Mutable TreeBasedTable<R extends @Mutable Comparable</*RAW*/>, C extends @Mutable Comparable</*RAW*/>, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:new TreeBasedTable<>(Ordering.natural(), Ordering.natural())
+  C extends @Mutable Comparable</*RAW*/> <: @Immutable Object
+  use of C from new TreeBasedTable<>(Ordering.natural(), Ordering.natural()) = C extends @Mutable Comparable</*RAW*/>
+  From complementary bound.: use of C from new TreeBasedTable<>(Ordering.natural(), Ordering.natural()) <= C extends @Mutable Comparable</*RAW*/>
+  inference type: com.google.common.collect.TreeBasedTable<R,C,V> <: @Mutable TreeBasedTable<R extends @Mutable Comparable</*RAW*/>, C extends @Mutable Comparable</*RAW*/>, V extends @Readonly Object>
+  inference type: com.google.common.collect.TreeBasedTable<R,C,V> -> @Mutable TreeBasedTable<R extends @Mutable Comparable</*RAW*/>, C extends @Mutable Comparable</*RAW*/>, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:new TreeBasedTable<>(Ordering.natural(), Ordering.natural())
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[132,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Comparator<capture#0308 extends @Readonly Object super C extends @Immutable Object>
+  required: @ReceiverDependentMutable Comparator<? extends @Readonly Object super C extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[162,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Comparator<capture#0309 extends @Readonly Object super C extends @Immutable Object>
+  method return type: @Mutable Comparator<? extends @Readonly Object super C extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[196,62] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of TreeRow.compare.
+  found   : C extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[196,74] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter b of TreeRow.compare.
+  found   : C extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[201,37] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of SortedKeySet constructor.
+  found   : @Mutable TreeBasedTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable TreeRow
+  required: @Mutable SortedMap<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[218,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of TreeRow.compare.
+  found   : C extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[218,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter b of TreeRow.compare.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[219,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of TreeRow.compare.
+  found   : C extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[219,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter b of TreeRow.compare.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[246,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Map<C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedMap<C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[255,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Map<C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedMap<C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[263,17] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable TreeBasedTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable TreeRow
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[263,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable SortedMap<C extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable SortedMap<C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[279,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable SortedMap<C extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable SortedMap<C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[289,17] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable TreeBasedTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable TreeRow
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[290,22] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable TreeBasedTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable TreeRow
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[327,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromIterable of Iterables.transform.
+  found   : @ReceiverDependentMutable Collection<@Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Iterable<@Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeBasedTable.java:[337,30] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Immutable Iterator<C extends @Immutable Object>
+  required: @Mutable Iterator<C extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardRowSortedTable.java:[64,10] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backingMap of StandardTable constructor.
+  found   : @Mutable SortedMap<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardRowSortedTable.java:[64,22] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter factory of StandardTable constructor.
+  found   : @Mutable Supplier<capture#0310 extends @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Supplier<? extends @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardRowSortedTable.java:[68,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Map<R [ extends @Immutable Object super @PICOBottom NullType ], @Mutable Map<C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>>" to "@Mutable SortedMap<R [ extends @Immutable Object super @PICOBottom NullType ], @Mutable Map<C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardRowSortedTable.java:[90,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Map<R [ extends @Immutable Object super @PICOBottom NullType ], @Mutable Map<C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>>" to "@Mutable SortedMap<R [ extends @Immutable Object super @PICOBottom NullType ], @Mutable Map<C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[98,102] [[immutability, pico, piconoinit, allcheckers]:type.anno.before.decl.anno] write type annotations [@Readonly] immediately before type, after declaration annotation @CheckForNull
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[102,42] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to values() not allowed on the given receiver.
+  found   : @PICOLost Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @PICOLost Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[134,42] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to values() not allowed on the given receiver.
+  found   : @PICOLost Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @PICOLost Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[257,84] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@Mutable Entry<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>>
+  required: @ReceiverDependentMutable Iterator<@Mutable Entry<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[259,76] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Iterator<@Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[287,33] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[312,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<@Immutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Spliterator<@Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[312,38] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CollectSpliterators.flatMap
+  unsatisfiable constraint: @PICOLost Entry<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>> <: @Mutable Entry<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  @Mutable Entry<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>> = use of InElementT from CollectSpliterators.flatMap(backingMap.entrySet().spliterator(), (Entry<R, Map<C, V>> rowEntry)->CollectSpliterators.map(rowEntry.getValue().entrySet().spliterator(), (Entry<C, V> columnEntry)->Tables.immutableCell(rowEntry.getKey(), columnEntry.getKey(), columnEntry.getValue())), Spliterator.DISTINCT | Spliterator.SIZED, size())
+  From complementary bound.: (Entry<R, Map<C, V>> rowEntry)->CollectSpliterators.map(rowEntry.getValue().entrySet().spliterator(), (Entry<C, V> columnEntry)->Tables.immutableCell(rowEntry.getKey(), columnEntry.getKey(), columnEntry.getValue())) -> inference type: java.util.function.Function<? super InElementT,java.util.Spliterator<OutElementT>>
+  From: Argument constraint
+  @Immutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object> <: @Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  use of OutElementT from CollectSpliterators.map(rowEntry.getValue().entrySet().spliterator(), (Entry<C, V> columnEntry)->Tables.immutableCell(rowEntry.getKey(), columnEntry.getKey(), columnEntry.getValue())) <: @Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of OutElementT from CollectSpliterators.flatMap(backingMap.entrySet().spliterator(), (Entry<R, Map<C, V>> rowEntry)->CollectSpliterators.map(rowEntry.getValue().entrySet().spliterator(), (Entry<C, V> columnEntry)->Tables.immutableCell(rowEntry.getKey(), columnEntry.getKey(), columnEntry.getValue())), Spliterator.DISTINCT | Spliterator.SIZED, size()) <: @Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of OutElementT from CollectSpliterators.flatMap(backingMap.entrySet().spliterator(), (Entry<R, Map<C, V>> rowEntry)->CollectSpliterators.map(rowEntry.getValue().entrySet().spliterator(), (Entry<C, V> columnEntry)->Tables.immutableCell(rowEntry.getKey(), columnEntry.getKey(), columnEntry.getValue())), Spliterator.DISTINCT | Spliterator.SIZED, size()) <= @Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  inference type: java.util.Spliterator<OutElementT> <: @Mutable Spliterator<@Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+  inference type: java.util.Spliterator<OutElementT> -> @Mutable Spliterator<@Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:CollectSpliterators.flatMap(backingMap.entrySet().spliterator(), (Entry<R, Map<C, V>> rowEntry)->CollectSpliterators.map(rowEntry.getValue().entrySet().spliterator(), (Entry<C, V> columnEntry)->Tables.immutableCell(rowEntry.getKey(), columnEntry.getKey(), columnEntry.getValue())), Spliterator.DISTINCT | Spliterator.SIZED, size())
+  @Immutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object> <: @Mutable Cell<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[341,22] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable StandardTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable Row
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[341,44] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Map<C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[355,22] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable StandardTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable Row
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[378,32] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to put(K,V) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Map<C extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[390,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Maps.safeRemove.
+  found   : @ReceiverDependentMutable Map<C extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<? extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[399,27] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Map<C extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[416,78] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@ReceiverDependentMutable Entry<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @Readonly Iterator<@Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[442,36] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CollectSpliterators.map
+  unsatisfiable constraint: @ReceiverDependentMutable Entry<C extends @Immutable Object, V extends @Readonly Object> <: @Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>
+  use of InElementT from CollectSpliterators.map(backingRowMap.entrySet().spliterator(), this::wrapEntry) <: @Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: this::wrapEntry -> inference type: java.util.function.Function<? super InElementT,? extends OutElementT>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[516,64] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter input of Predicate.apply.
+  found   : @Immutable Entry<R extends @Immutable Object, V extends @Readonly Object>
+  required: capture#0311 extends @Readonly Object super @Mutable Entry<R extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[563,30] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#0312 [ extends @Immutable Object super @PICOBottom NullType ], capture#0313 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[572,30] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#0314 [ extends @Immutable Object super @PICOBottom NullType ], capture#0315 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[706,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Set<C extends @Immutable Object>
+  method return type: @Mutable Set<C extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[706,45] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @ReceiverDependentMutable StandardTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@Mutable ColumnKeySet
+  required: @ReceiverDependentMutable Set<C extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[792,38] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : capture#0316 extends @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Map<C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[793,72] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Iterator<@Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[794,65] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable UnmodifiableIterator<@Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Iterator<@Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[801,48] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Iterator<@Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Iterator<@Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[803,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to put(K,V) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Map<C extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[807,24] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Mutable StandardTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable ColumnKeyIterator
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[807,42] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable Iterator<@Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Iterator<@Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[807,64] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<@Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Iterator<@Mutable Entry<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[809,26] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to endOfData() not allowed on the given receiver.
+  found   : @Mutable StandardTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@ReceiverDependentMutable ColumnKeyIterator
+  required: @Mutable AbstractIterator<C extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[832,51] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @PolyMutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[853,36] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "R [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[889,30] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#0317 [ extends @Immutable Object super @PICOBottom NullType ], capture#0318 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[900,30] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#0319 [ extends @Immutable Object super @PICOBottom NullType ], capture#0320 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[916,42] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PolyMutable StandardTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@Mutable ColumnMap
+  required: @Mutable StandardTable<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>.@PolyMutable ColumnMap
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[929,42] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "C [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[995,21] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter obj of ColumnMapEntrySet.contains.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/StandardTable.java:[996,30] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Object" to "@Mutable Entry<capture#0321 [ extends @Immutable Object super @PICOBottom NullType ], capture#0322 [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSortedSetMultimap.java:[56,19] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to delegate() not allowed on the given receiver.
+  found   : @Readonly ForwardingSortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost ForwardingSortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSetMultimap.java:[63,31] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Set<V extends @Readonly Object>
+  method return type: @Mutable Set<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingSetMultimap.java:[69,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Set<V extends @Readonly Object>
+  method return type: @Mutable Set<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/primitives/UnsignedLongs.java:[170,36] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable LexicographicalComparator
+  method return type: @Mutable Comparator<@Immutable long @Mutable []>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/primitives/UnsignedLongs.java:[528,24] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of String constructor.
+  found   : @Immutable char @Mutable []
+  required: @Immutable char @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[86,30] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[96,41] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PolyMutable TreeRangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>.@Mutable AsRanges
+  required: @PolyMutable Set<@Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[96,79] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of AsRanges constructor.
+  found   : @PolyMutable Collection<@Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @Mutable Collection<@Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[103,36] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PolyMutable TreeRangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>.@Mutable AsRanges
+  required: @PolyMutable Set<@Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[103,90] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of AsRanges constructor.
+  found   : @PolyMutable Collection<@Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @Mutable Collection<@Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[178,81] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to firstEntry() not allowed on the given receiver.
+  found   : @PICOLost NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @PICOLost NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[179,79] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to lastEntry() not allowed on the given receiver.
+  found   : @PICOLost NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @PICOLost NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[187,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable<? extends @Readonly Object> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable<? extends @Readonly Object> = use of C from Range.create(firstEntry.getValue().lowerBound, lastEntry.getValue().upperBound)
+  From complementary bound.: C extends @Readonly Comparable<? extends @Readonly Object> <= use of C from Range.create(firstEntry.getValue().lowerBound, lastEntry.getValue().upperBound)
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> inference type: com.google.common.collect.Cut<C>
+  firstEntry.getValue().lowerBound -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[232,53] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable SortedMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @Mutable Map<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[234,47] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable<? extends @Readonly Object> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable<? extends @Readonly Object> = use of C from Range.create(lbToAdd, ubToAdd)
+  From complementary bound.: C extends @Readonly Comparable<? extends @Readonly Object> <= use of C from Range.create(lbToAdd, ubToAdd)
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> inference type: com.google.common.collect.Cut<C>
+  lbToAdd -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[258,26] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable<? extends @Readonly Object> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable<? extends @Readonly Object> = use of C from Range.create(rangeToRemove.upperBound, rangeBelowLB.upperBound)
+  From complementary bound.: C extends @Readonly Comparable<? extends @Readonly Object> <= use of C from Range.create(rangeToRemove.upperBound, rangeBelowLB.upperBound)
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> inference type: com.google.common.collect.Cut<C>
+  rangeToRemove.upperBound -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[261,24] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable<? extends @Readonly Object> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable<? extends @Readonly Object> = use of C from Range.create(rangeBelowLB.lowerBound, rangeToRemove.lowerBound)
+  From complementary bound.: C extends @Readonly Comparable<? extends @Readonly Object> <= use of C from Range.create(rangeBelowLB.lowerBound, rangeToRemove.lowerBound)
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> inference type: com.google.common.collect.Cut<C>
+  rangeBelowLB.lowerBound -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[273,24] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable<? extends @Readonly Object> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable<? extends @Readonly Object> = use of C from Range.create(rangeToRemove.upperBound, rangeBelowUB.upperBound)
+  From complementary bound.: C extends @Readonly Comparable<? extends @Readonly Object> <= use of C from Range.create(rangeToRemove.upperBound, rangeBelowUB.upperBound)
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> inference type: com.google.common.collect.Cut<C>
+  rangeToRemove.upperBound -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[277,87] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to clear() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable SortedMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @Mutable Map<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[282,31] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove(java.lang.Object) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @Mutable Map<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[284,28] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to put(K,V) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @Mutable Map<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[294,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable RangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>
+  method return type: @Mutable RangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[294,43] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @PolyMutable TreeRangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>.@Mutable Complement
+  required: @PolyMutable RangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[310,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[311,39] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.all
+  unsatisfiable constraint: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: @Mutable Comparable<? extends @Readonly Object>
+  use of C from Range.all() = @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>
+  From complementary bound.: use of C from Range.all() <= @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>
+  inference type: com.google.common.collect.Range<C> <: @Immutable Range<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  inference type: com.google.common.collect.Range<C> -> @Immutable Range<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  From: Constraint between method call type and target type for method call:Range.all()
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[316,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[322,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter rangesByLowerBound of RangesByUpperBound constructor.
+  found   : @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[324,36] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSortedMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  method return type: @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[332,21] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.range
+  unsatisfiable constraint: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: use of C from Range.range(fromKey, BoundType.forBoolean(fromInclusive), toKey, BoundType.forBoolean(toInclusive))
+  From complementary bound.: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> use of C from Range.range(fromKey, BoundType.forBoolean(fromInclusive), toKey, BoundType.forBoolean(toInclusive))
+  fromKey -> use of C from Range.range(fromKey, BoundType.forBoolean(fromInclusive), toKey, BoundType.forBoolean(toInclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[339,30] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.upTo
+  unsatisfiable constraint: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: use of C from Range.upTo(toKey, BoundType.forBoolean(inclusive))
+  From complementary bound.: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> use of C from Range.upTo(toKey, BoundType.forBoolean(inclusive))
+  toKey -> use of C from Range.upTo(toKey, BoundType.forBoolean(inclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[344,32] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.downTo
+  unsatisfiable constraint: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: use of C from Range.downTo(fromKey, BoundType.forBoolean(inclusive))
+  From complementary bound.: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> use of C from Range.downTo(fromKey, BoundType.forBoolean(inclusive))
+  fromKey -> use of C from Range.downTo(fromKey, BoundType.forBoolean(inclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[413,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  method return type: @Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[445,14] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  method return type: @Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[481,49] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C extends @Mutable Comparable<? extends @Readonly Object> of Range.all.
+  found   : @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[486,40] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[487,40] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable RangesByUpperBound<C extends @Readonly Comparable<? extends @Readonly Object>>
+  required: @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[493,36] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSortedMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  method return type: @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[496,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter positiveRangesByLowerBound of ComplementRangesByLowerBound constructor.
+  found   : @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[504,21] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.range
+  unsatisfiable constraint: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: use of C from Range.range(fromKey, BoundType.forBoolean(fromInclusive), toKey, BoundType.forBoolean(toInclusive))
+  From complementary bound.: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> use of C from Range.range(fromKey, BoundType.forBoolean(fromInclusive), toKey, BoundType.forBoolean(toInclusive))
+  fromKey -> use of C from Range.range(fromKey, BoundType.forBoolean(fromInclusive), toKey, BoundType.forBoolean(toInclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[511,30] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.upTo
+  unsatisfiable constraint: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: use of C from Range.upTo(toKey, BoundType.forBoolean(inclusive))
+  From complementary bound.: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> use of C from Range.upTo(toKey, BoundType.forBoolean(inclusive))
+  toKey -> use of C from Range.upTo(toKey, BoundType.forBoolean(inclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[516,32] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.downTo
+  unsatisfiable constraint: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: use of C from Range.downTo(fromKey, BoundType.forBoolean(inclusive))
+  From complementary bound.: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> use of C from Range.downTo(fromKey, BoundType.forBoolean(inclusive))
+  fromKey -> use of C from Range.downTo(fromKey, BoundType.forBoolean(inclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[554,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>>
+  method return type: @Mutable Iterator<@Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[569,40] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable<? extends @Readonly Object> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable<? extends @Readonly Object> = use of C from Range.create(nextComplementRangeLowerBound, positiveRange.lowerBound)
+  From complementary bound.: C extends @Readonly Comparable<? extends @Readonly Object> <= use of C from Range.create(nextComplementRangeLowerBound, positiveRange.lowerBound)
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> inference type: com.google.common.collect.Cut<C>
+  nextComplementRangeLowerBound -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[572,40] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable<? extends @Readonly Object> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable<? extends @Readonly Object> = use of C from Range.create(nextComplementRangeLowerBound, Cut.<C>aboveAll())
+  From complementary bound.: C extends @Readonly Comparable<? extends @Readonly Object> <= use of C from Range.create(nextComplementRangeLowerBound, Cut.<C>aboveAll())
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> inference type: com.google.common.collect.Cut<C>
+  nextComplementRangeLowerBound -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[575,36] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  method return type: @Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[612,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>>
+  method return type: @Mutable Iterator<@Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[628,28] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable<? extends @Readonly Object> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable<? extends @Readonly Object> = use of C from Range.create(positiveRange.upperBound, nextComplementRangeUpperBound)
+  From complementary bound.: C extends @Readonly Comparable<? extends @Readonly Object> <= use of C from Range.create(positiveRange.upperBound, nextComplementRangeUpperBound)
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> inference type: com.google.common.collect.Cut<C>
+  positiveRange.upperBound -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[631,40] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  method return type: @Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[634,49] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.create
+  unsatisfiable constraint: C extends @Readonly Comparable<? extends @Readonly Object> <: @Mutable Comparable<? extends @Readonly Object>
+  C extends @Readonly Comparable<? extends @Readonly Object> = use of C from Range.create(Cut.<C>belowAll(), nextComplementRangeUpperBound)
+  From complementary bound.: C extends @Readonly Comparable<? extends @Readonly Object> <= use of C from Range.create(Cut.<C>belowAll(), nextComplementRangeUpperBound)
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: inference type: com.google.common.collect.Cut<C>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> inference type: com.google.common.collect.Cut<C>
+  Cut.<C>belowAll() -> inference type: com.google.common.collect.Cut<C>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[636,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  method return type: @Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[724,44] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[724,44] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Preconditions.checkNotNull
+  unsatisfiable constraint: @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>> <: @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  use of T from checkNotNull(rangesByLowerBound) <: @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  From complementary bound.: use of T from checkNotNull(rangesByLowerBound) -> @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  From: Constraint between method call type and target type for method call:checkNotNull(rangesByLowerBound)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[725,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable RangesByUpperBound<C extends @Readonly Comparable<? extends @Readonly Object>>
+  required: @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[730,36] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSortedMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  method return type: @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[733,64] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter rangesByLowerBound of SubRangeSetRangesByLowerBound constructor.
+  found   : @ReceiverDependentMutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  required: @Mutable NavigableMap<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[741,21] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.range
+  unsatisfiable constraint: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: use of C from Range.range(fromKey, BoundType.forBoolean(fromInclusive), toKey, BoundType.forBoolean(toInclusive))
+  From complementary bound.: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> use of C from Range.range(fromKey, BoundType.forBoolean(fromInclusive), toKey, BoundType.forBoolean(toInclusive))
+  fromKey -> use of C from Range.range(fromKey, BoundType.forBoolean(fromInclusive), toKey, BoundType.forBoolean(toInclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[750,30] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.upTo
+  unsatisfiable constraint: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: use of C from Range.upTo(toKey, BoundType.forBoolean(inclusive))
+  From complementary bound.: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> use of C from Range.upTo(toKey, BoundType.forBoolean(inclusive))
+  toKey -> use of C from Range.upTo(toKey, BoundType.forBoolean(inclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[755,32] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Range.downTo
+  unsatisfiable constraint: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: @Mutable Comparable<? extends @Readonly Object>
+  @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> <: use of C from Range.downTo(fromKey, BoundType.forBoolean(inclusive))
+  From complementary bound.: @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>> -> use of C from Range.downTo(fromKey, BoundType.forBoolean(inclusive))
+  fromKey -> use of C from Range.downTo(fromKey, BoundType.forBoolean(inclusive))
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[801,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>>
+  method return type: @Mutable Iterator<@Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[805,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>>
+  method return type: @Mutable Iterator<@Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[835,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  method return type: @Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[844,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable UnmodifiableIterator<@Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>>
+  method return type: @Mutable Iterator<@Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[870,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+  method return type: @Mutable Entry<@Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<C extends @Readonly Comparable<? extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[886,30] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C extends @Mutable Comparable<? extends @Readonly Object> of Range.all.
+  found   : C extends @Readonly Comparable<? extends @Readonly Object>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[886,39] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly RangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>
+  method return type: @Mutable RangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[896,24] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter C extends @Mutable Comparable<? extends @Readonly Object> of Range.all.
+  found   : @Immutable Cut<C extends @Readonly Comparable<? extends @Readonly Object>>
+  required: @Mutable Comparable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[949,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable TreeRangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>.@ReceiverDependentMutable SubRangeSet
+  method return type: @Mutable RangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TreeRangeSet.java:[953,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableRangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>
+  method return type: @Mutable RangeSet<C extends @Readonly Comparable<? extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[228,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[244,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[244,43] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object
+  required: @ReceiverDependentMutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[247,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[247,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[248,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[248,20] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[258,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Object" to "@Mutable Set<E [ extends @Mutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[264,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for LinkedHashSet constructor
+  unsatisfiable constraint: E extends @Mutable Object <: @Immutable Object
+  use of E from new LinkedHashSet<>(tableSize, 1.0F) = E extends @Mutable Object
+  From complementary bound.: use of E from new LinkedHashSet<>(tableSize, 1.0F) <= E extends @Mutable Object
+  inference type: java.util.LinkedHashSet<E> <: @Mutable Set<E extends @Mutable Object>
+  inference type: java.util.LinkedHashSet<E> -> @Mutable Set<E extends @Mutable Object>
+  From: Constraint between method call type and target type for method call:new LinkedHashSet<>(tableSize, 1.0F)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[274,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[274,17] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<E extends @Mutable Object>
+  required: @ReceiverDependentMutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[275,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[276,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[289,13] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[299,13] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[357,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[388,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[388,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[389,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[389,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[424,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[424,17] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object
+  required: @ReceiverDependentMutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[482,8] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[602,37] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<E [ extends @Mutable Object super @Mutable NullType ]>
+  method return type: @Mutable Spliterator<E [ extends @Mutable Object super @PICOBottom NullType ]>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[606,8] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<E [ extends @Mutable Object super @Mutable NullType ]>
+  method return type: @Mutable Spliterator<E [ extends @Mutable Object super @PICOBottom NullType ]>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[672,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[672,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<E extends @Mutable Object>
+  required: @ReceiverDependentMutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[694,15] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[697,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[698,11] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[703,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[735,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Object
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[735,25] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @ReceiverDependentMutable Object <: @Mutable Object
+  use of T from requireNonNull(table) <: @Mutable Object
+  From complementary bound.: use of T from requireNonNull(table) -> @Mutable Object
+  From: Constraint between method call type and target type for method call:requireNonNull(table)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[739,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable int @ReceiverDependentMutable []
+  method return type: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[739,25] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @Immutable int @ReceiverDependentMutable [] <: @Immutable int @Mutable []
+  use of T from requireNonNull(entries) <: @Immutable int @Mutable []
+  From complementary bound.: use of T from requireNonNull(entries) -> @Immutable int @Mutable []
+  From: Constraint between method call type and target type for method call:requireNonNull(entries)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[743,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Object @ReceiverDependentMutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashSet.java:[743,25] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @Mutable Object @ReceiverDependentMutable [] <: @Mutable Object @Mutable []
+  use of T from requireNonNull(elements) <: @Mutable Object @Mutable []
+  From complementary bound.: use of T from requireNonNull(elements) -> @Mutable Object @Mutable []
+  From: Constraint between method call type and target type for method call:requireNonNull(elements)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumSet.java:[51,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter iterable of Iterables.getOnlyElement.
+  found   : @Immutable EnumSet</*RAW*/>
+  required: @Mutable Iterable<@Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumSet.java:[107,53] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable EnumSet<capture#0323 extends @Immutable Enum<capture#0323>>
+  required: @Mutable Collection<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumSet.java:[125,45] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable EnumSet<capture#0324 extends @Immutable Enum<capture#0324>>
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumSet.java:[141,36] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ImmutableEnumSet<E extends @Immutable Enum<E>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumSet.java:[153,37] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of EnumSerializedForm constructor.
+  found   : @Immutable EnumSet<E extends @Immutable Enum<E>>
+  required: @Mutable EnumSet<E extends @Immutable Enum<E extends @Immutable Enum<E>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumSet.java:[168,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableEnumSet<E extends @Immutable Enum<E extends @Immutable Enum<E>>>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumSet.java:[168,51] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of ImmutableEnumSet constructor.
+  found   : @Mutable EnumSet<E extends @Immutable Enum<E>>
+  required: @Immutable EnumSet<E extends @Immutable Enum<E extends @Immutable Enum<E>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[125,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[126,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[132,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[132,17] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable long @Mutable []
+  required: @Immutable long @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[145,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[176,17] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[182,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[211,23] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to moveLastEntry(int,int) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>
+  required: @Mutable CompactHashMap<K extends @Immutable Object, V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[224,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[224,25] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable long @Mutable []
+  required: @Immutable long @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[243,39] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<@ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Mutable Object>>
+  method return type: @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, V extends @Mutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[243,39] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Spliterators.spliterator
+  unsatisfiable constraint: @ReceiverDependentMutable Entry<K extends @Immutable Object, V extends @Mutable Object> <: @Mutable Entry<K extends @Immutable Object, V extends @Mutable Object>
+  use of T from Spliterators.spliterator(this, Spliterator.ORDERED | Spliterator.DISTINCT) <: @Mutable Entry<K extends @Immutable Object, V extends @Mutable Object>
+  From complementary bound.: use of T from Spliterators.spliterator(this, Spliterator.ORDERED | Spliterator.DISTINCT) <= @Mutable Entry<K extends @Immutable Object, V extends @Mutable Object>
+  inference type: java.util.Spliterator<T> <: @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, V extends @Mutable Object>>
+  inference type: java.util.Spliterator<T> -> @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, V extends @Mutable Object>>
+  From: Constraint between method call type and target type for method call:Spliterators.spliterator(this, Spliterator.ORDERED | Spliterator.DISTINCT)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[246,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>.@Mutable EntrySetImpl
+  method return type: @Mutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Mutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[302,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[303,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashMap<K extends @Immutable Object, V extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[305,18] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of Arrays.fill.
+  found   : @Immutable long @ReceiverDependentMutable []
+  required: @Immutable long @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[316,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable long @ReceiverDependentMutable []
+  method return type: @Immutable long @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashMap.java:[316,25] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @Immutable long @ReceiverDependentMutable [] <: @Immutable long @Mutable []
+  use of T from requireNonNull(links) <: @Immutable long @Mutable []
+  From complementary bound.: use of T from requireNonNull(links) -> @Immutable long @Mutable []
+  From: Constraint between method call type and target type for method call:requireNonNull(links)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[107,17] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of CompactHashMap.
+  found   : K extends @Mutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[108,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CompactHashMap constructor
+  unsatisfiable constraint: K extends @Mutable Object <: @Immutable Object
+  use of K from new CompactHashMap<>() = K extends @Mutable Object
+  From complementary bound.: use of K from new CompactHashMap<>() <= K extends @Mutable Object
+  inference type: com.google.common.collect.CompactHashMap<K,V> <: @Mutable CompactHashMap<K extends @Mutable Object, V extends @Readonly Object>
+  inference type: com.google.common.collect.CompactHashMap<K,V> -> @Mutable CompactHashMap<K extends @Mutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:new CompactHashMap<>()
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[121,17] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of CompactHashMap.
+  found   : K extends @Mutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[122,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CompactHashMap constructor
+  unsatisfiable constraint: K extends @Mutable Object <: @Immutable Object
+  use of K from new CompactHashMap<>(expectedSize) = K extends @Mutable Object
+  From complementary bound.: use of K from new CompactHashMap<>(expectedSize) <= K extends @Mutable Object
+  inference type: com.google.common.collect.CompactHashMap<K,V> <: @Mutable CompactHashMap<K extends @Mutable Object, V extends @Readonly Object>
+  inference type: com.google.common.collect.CompactHashMap<K,V> -> @Mutable CompactHashMap<K extends @Mutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:new CompactHashMap<>(expectedSize)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[283,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[283,43] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object
+  required: @ReceiverDependentMutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[286,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[286,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[287,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[287,16] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[288,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[288,18] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[298,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Object" to "@Mutable Map<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[314,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[314,17] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Map<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[315,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[316,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[317,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[387,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : V extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[419,15] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setKey(int,K) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[420,17] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setValue(int,V) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[441,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[441,32] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[442,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[442,29] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[443,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[443,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[488,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[488,17] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object
+  required: @ReceiverDependentMutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[546,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of CompactHashMap.removeHelper.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[562,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter keys of CompactHashing.remove.
+  found   : @Mutable Object @ReceiverDependentMutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[570,17] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to moveLastEntry(int,int) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[574,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[696,16] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setValue(int,V) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[705,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Set<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+  method return type: @Mutable Set<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[705,45] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[705,59] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<K extends @Immutable Object>
+  required: @ReceiverDependentMutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[725,10] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @Mutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[761,39] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<K extends @Mutable Object>
+  method return type: @Mutable Spliterator<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[765,10] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<K extends @Readonly Object>
+  method return type: @Mutable Spliterator<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[789,19] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter T of Itr.
+  found   : K extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[815,34] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Set<@Mutable Entry<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Set<@Mutable Entry<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[815,49] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[815,65] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[819,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>.@Mutable EntrySetView
+  method return type: @Mutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[838,10] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<@Mutable Entry<K [ extends @Readonly Object super @Readonly NullType ], V [ extends @Readonly Object super @Readonly NullType ]>>
+  method return type: @Mutable Spliterator<@Mutable Entry<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[839,39] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CollectSpliterators.indexed
+  unsatisfiable constraint: @Mutable CompactHashMap<K extends @Mutable Object, V extends @Mutable Object>.@Mutable MapEntry <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from CollectSpliterators.indexed(size, Spliterator.DISTINCT | Spliterator.ORDERED, MapEntry::new) <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from CollectSpliterators.indexed(size, Spliterator.DISTINCT | Spliterator.ORDERED, MapEntry::new) <= @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  inference type: java.util.Spliterator<T> <: @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  inference type: java.util.Spliterator<T> -> @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:CollectSpliterators.indexed(size, Spliterator.DISTINCT | Spliterator.ORDERED, MapEntry::new)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[850,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of CompactHashMap.indexOf.
+  found   : @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[869,28] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of CompactHashing.remove.
+  found   : @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[870,30] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter value of CompactHashing.remove.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[923,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of CompactHashMap.indexOf.
+  found   : K extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[998,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  method return type: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[998,45] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[998,59] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Collection<V extends @Readonly Object>
+  required: @ReceiverDependentMutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1008,26] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Values constructor.
+  found   : @Mutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1032,39] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<V extends @Mutable Object>
+  method return type: @Mutable Spliterator<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1036,10] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<V [ extends @Readonly Object super @Readonly NullType ]>
+  method return type: @Mutable Spliterator<V [ extends @Readonly Object super @PICOBottom NullType ]>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1047,10] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @Mutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1056,55] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : T extends @Readonly Object @Mutable []
+  required: @Mutable Object @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1073,19] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter T of Itr.
+  found   : V extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1094,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1094,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Map<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1119,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1122,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of Arrays.fill.
+  found   : @Mutable Object @ReceiverDependentMutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1123,31] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of Arrays.fill.
+  found   : @Mutable Object @ReceiverDependentMutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1150,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1152,9] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to put(K,V) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable CompactHashMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1169,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Object
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1169,25] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @ReceiverDependentMutable Object <: @Mutable Object
+  use of T from requireNonNull(table) <: @Mutable Object
+  From complementary bound.: use of T from requireNonNull(table) -> @Mutable Object
+  From: Constraint between method call type and target type for method call:requireNonNull(table)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1173,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable int @ReceiverDependentMutable []
+  method return type: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1173,25] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @Immutable int @ReceiverDependentMutable [] <: @Immutable int @Mutable []
+  use of T from requireNonNull(entries) <: @Immutable int @Mutable []
+  From complementary bound.: use of T from requireNonNull(entries) -> @Immutable int @Mutable []
+  From: Constraint between method call type and target type for method call:requireNonNull(entries)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1194,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1207,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : K extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactHashMap.java:[1211,25] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : V extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/thirdparty/publicsuffix/PublicSuffixPatterns.java:[45,10] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter encoded of TrieParser.parseTrie.
+  found   : @Immutable String
+  required: @Mutable CharSequence
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/thirdparty/publicsuffix/PublicSuffixPatterns.java:[53,10] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter encoded of TrieParser.parseTrie.
+  found   : @Immutable String
+  required: @Mutable CharSequence
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/thirdparty/publicsuffix/PublicSuffixPatterns.java:[62,10] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter encoded of TrieParser.parseTrie.
+  found   : @Immutable String
+  required: @Mutable CharSequence
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EvictingQueue.java:[143,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @Mutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/Absent.java:[78,31] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Set<@org.checkerframework.checker.nullness.qual.NonNull T extends @Readonly Object>
+  method return type: @Mutable Set<@org.checkerframework.checker.nullness.qual.NonNull T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EnumMultiset.java:[148,13] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of EnumMultiset.checkIsE.
+  found   : E extends @Immutable Enum<E>
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EnumMultiset.java:[151,19] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of EnumMultiset.count.
+  found   : E extends @Immutable Enum<E>
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/EnumMultiset.java:[197,13] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of EnumMultiset.checkIsE.
+  found   : E extends @Immutable Enum<E>
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Interners.java:[86,13] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for InternerImpl constructor
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  use of E from new InternerImpl<>(mapMaker) = E extends @Readonly Object
+  From complementary bound.: use of E from new InternerImpl<>(mapMaker) <= E extends @Readonly Object
+  inference type: com.google.common.collect.Interners.InternerImpl<E> <: @Mutable Interner<E extends @Readonly Object>
+  inference type: com.google.common.collect.Interners.InternerImpl<E> -> @Mutable Interner<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:new InternerImpl<>(mapMaker)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Interners.java:[122,94] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter equivalence of MapMaker.keyEquivalence.
+  found   : @Mutable Equivalence<@Readonly Object>
+  required: @Mutable Equivalence<@Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Interners.java:[130,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of MapMakerInternalMap.getEntry.
+  found   : E extends @Immutable Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/FinalizableWeakReference.java:[42,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter q of WeakReference constructor.
+  found   : @Mutable ReferenceQueue<@Mutable Object>
+  required: @Mutable ReferenceQueue<? extends @Readonly Object super T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/FinalizableReferenceQueue.java:[162,54] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter args of Method.invoke.
+  found   : @Immutable Class<@Mutable FinalizableReference>
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[151,72] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of ImmutableSortedMap.
+  found   : K extends @Mutable Comparable<? extends @Readonly Object super K>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[152,13] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableSortedMap.of
+  unsatisfiable constraint: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: @Immutable Object
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: use of K from of(Ordering.natural(), k1, v1)
+  From complementary bound.: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> -> use of K from of(Ordering.natural(), k1, v1)
+  k1 -> use of K from of(Ordering.natural(), k1, v1)
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[169,72] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of ImmutableSortedMap.
+  found   : K extends @Mutable Comparable<? extends @Readonly Object super K>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[171,22] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableSortedMap.fromEntries
+  unsatisfiable constraint: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: @Immutable Object
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: use of K from entryOf(k1, v1)
+  From complementary bound.: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> -> use of K from entryOf(k1, v1)
+  k1 -> use of K from entryOf(k1, v1)
+  From: Argument constraint
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: @Immutable Object
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: use of K from entryOf(k2, v2)
+  From complementary bound.: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> -> use of K from entryOf(k2, v2)
+  k2 -> use of K from entryOf(k2, v2)
+  From: Argument constraint
+  K extends @Mutable Comparable<? extends @Readonly Object super K> <: @Immutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>>
+  use of K from fromEntries(entryOf(k1, v1), entryOf(k2, v2)) = K extends @Mutable Comparable<? extends @Readonly Object super K>
+  From complementary bound.: use of K from fromEntries(entryOf(k1, v1), entryOf(k2, v2)) <= K extends @Mutable Comparable<? extends @Readonly Object super K>
+  inference type: com.google.common.collect.ImmutableSortedMap<K,V> <: @Immutable ImmutableSortedMap<K extends @Mutable Comparable<? extends @Readonly Object super K>, V extends @Readonly Object>
+  inference type: com.google.common.collect.ImmutableSortedMap<K,V> -> @Immutable ImmutableSortedMap<K extends @Mutable Comparable<? extends @Readonly Object super K>, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:fromEntries(entryOf(k1, v1), entryOf(k2, v2))
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[181,72] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of ImmutableSortedMap.
+  found   : K extends @Mutable Comparable<? extends @Readonly Object super K>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[183,22] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableSortedMap.fromEntries
+  unsatisfiable constraint: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: @Immutable Object
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: use of K from entryOf(k1, v1)
+  From complementary bound.: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> -> use of K from entryOf(k1, v1)
+  k1 -> use of K from entryOf(k1, v1)
+  From: Argument constraint
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: @Immutable Object
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: use of K from entryOf(k2, v2)
+  From complementary bound.: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> -> use of K from entryOf(k2, v2)
+  k2 -> use of K from entryOf(k2, v2)
+  From: Argument constraint
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: @Immutable Object
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: use of K from entryOf(k3, v3)
+  From complementary bound.: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> -> use of K from entryOf(k3, v3)
+  k3 -> use of K from entryOf(k3, v3)
+  From: Argument constraint
+  K extends @Mutable Comparable<? extends @Readonly Object super K> <: @Immutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>>
+  use of K from fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3)) = K extends @Mutable Comparable<? extends @Readonly Object super K>
+  From complementary bound.: use of K from fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3)) <= K extends @Mutable Comparable<? extends @Readonly Object super K>
+  inference type: com.google.common.collect.ImmutableSortedMap<K,V> <: @Immutable ImmutableSortedMap<K extends @Mutable Comparable<? extends @Readonly Object super K>, V extends @Readonly Object>
+  inference type: com.google.common.collect.ImmutableSortedMap<K,V> -> @Immutable ImmutableSortedMap<K extends @Mutable Comparable<? extends @Readonly Object super K>, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3))
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[193,72] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of ImmutableSortedMap.
+  found   : K extends @Mutable Comparable<? extends @Readonly Object super K>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[195,22] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableSortedMap.fromEntries
+  unsatisfiable constraint: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: @Immutable Object
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: use of K from entryOf(k1, v1)
+  From complementary bound.: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> -> use of K from entryOf(k1, v1)
+  k1 -> use of K from entryOf(k1, v1)
+  From: Argument constraint
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: @Immutable Object
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: use of K from entryOf(k2, v2)
+  From complementary bound.: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> -> use of K from entryOf(k2, v2)
+  k2 -> use of K from entryOf(k2, v2)
+  From: Argument constraint
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: @Immutable Object
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: use of K from entryOf(k3, v3)
+  From complementary bound.: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> -> use of K from entryOf(k3, v3)
+  k3 -> use of K from entryOf(k3, v3)
+  From: Argument constraint
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: @Immutable Object
+  K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> <: use of K from entryOf(k4, v4)
+  From complementary bound.: K extends @Mutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>> -> use of K from entryOf(k4, v4)
+  k4 -> use of K from entryOf(k4, v4)
+  From: Argument constraint
+  K extends @Mutable Comparable<? extends @Readonly Object super K> <: @Immutable Comparable<? extends @Readonly Object super K extends @Mutable Comparable<? extends @Readonly Object super K>>
+  use of K from fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4)) = K extends @Mutable Comparable<? extends @Readonly Object super K>
+  From complementary bound.: use of K from fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4)) <= K extends @Mutable Comparable<? extends @Readonly Object super K>
+  inference type: com.google.common.collect.ImmutableSortedMap<K,V> <: @Immutable ImmutableSortedMap<K extends @Mutable Comparable<? extends @Readonly Object super K>, V extends @Readonly Object>
+  inference type: com.google.common.collect.ImmutableSortedMap<K,V> -> @Immutable ImmutableSortedMap<K extends @Mutable Comparable<? extends @Readonly Object super K>, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:fromEntries(entryOf(k1, v1), entryOf(k2, v2), entryOf(k3, v3), entryOf(k4, v4))
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[496,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryArray of ImmutableSortedMap.fromEntries.
+  found   : @Immutable Entry<K extends @Immutable Comparable<? extends @Readonly Object super K extends @Immutable Comparable<? extends @Readonly Object super K>>, V extends @Readonly Object> @Mutable []
+  required: @Mutable Entry<K extends @Immutable Comparable<? extends @Readonly Object super K>, V extends @Readonly Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[528,35] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Immutable Object @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[578,73] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of RegularImmutableList constructor.
+  found   : @Immutable Object @Mutable []
+  required: @Mutable Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[579,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of RegularImmutableList constructor.
+  found   : @Readonly Object @Mutable []
+  required: @Mutable Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[587,53] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Builder.
+  found   : K extends @Mutable Comparable<? extends @Readonly Object>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[588,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Builder constructor
+  unsatisfiable constraint: K extends @Mutable Comparable<? extends @Readonly Object> <: @Immutable Object
+  use of K from new Builder<>(Ordering.natural()) = K extends @Mutable Comparable<? extends @Readonly Object>
+  From complementary bound.: use of K from new Builder<>(Ordering.natural()) <= K extends @Mutable Comparable<? extends @Readonly Object>
+  inference type: com.google.common.collect.ImmutableSortedMap.Builder<K,V> <: @Mutable Builder<K extends @Mutable Comparable<? extends @Readonly Object>, V extends @Readonly Object>
+  inference type: com.google.common.collect.ImmutableSortedMap.Builder<K,V> -> @Mutable Builder<K extends @Mutable Comparable<? extends @Readonly Object>, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:new Builder<>(Ordering.natural())
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[607,53] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Builder.
+  found   : K extends @Mutable Comparable<? extends @Readonly Object>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[608,11] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Builder constructor
+  unsatisfiable constraint: K extends @Mutable Comparable<? extends @Readonly Object> <: @Immutable Object
+  use of K from new Builder<>(Ordering.natural().reverse()) = K extends @Mutable Comparable<? extends @Readonly Object>
+  From complementary bound.: use of K from new Builder<>(Ordering.natural().reverse()) <= K extends @Mutable Comparable<? extends @Readonly Object>
+  inference type: com.google.common.collect.ImmutableSortedMap.Builder<K,V> <: @Mutable Builder<K extends @Mutable Comparable<? extends @Readonly Object>, V extends @Readonly Object>
+  inference type: com.google.common.collect.ImmutableSortedMap.Builder<K,V> -> @Mutable Builder<K extends @Mutable Comparable<? extends @Readonly Object>, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:new Builder<>(Ordering.natural().reverse())
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[754,48] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryArray of ImmutableSortedMap.fromEntries.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[849,15] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable ImmutableSortedMap<K extends @Immutable Object, V extends @Readonly Object>.@Immutable EntrySet.@Readonly <anonymous com.google.common.collect.ImmutableSortedMap$1EntrySet$1> <init>(@Immutable ImmutableSortedMap<K extends @Immutable Object, V extends @Readonly Object>.@Immutable EntrySet this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[849,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly ImmutableList<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Immutable ImmutableList<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[852,19] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable SimpleImmutableEntry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableSortedMap.java:[859,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to size() not allowed on the given receiver.
+  found   : @Immutable ImmutableSortedMap<K extends @Immutable Object, V extends @Readonly Object>.@Immutable EntrySet.@Mutable <anonymous com.google.common.collect.ImmutableSortedMap$1EntrySet$1>
+  required: @Immutable ImmutableAsList<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[59,28] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of ImmutableMap.
+  found   : @Mutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[60,6] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for RegularImmutableMap constructor
+  unsatisfiable constraint: @Mutable Object <: @Immutable Object
+  @Mutable Object <: use of K from new RegularImmutableMap<>((Entry<Object, Object>[])ImmutableMap.EMPTY_ENTRY_ARRAY, null, 0)
+  From complementary bound.: @Mutable Object <= use of K from new RegularImmutableMap<>((Entry<Object, Object>[])ImmutableMap.EMPTY_ENTRY_ARRAY, null, 0)
+  @Mutable Entry<@Mutable Object, @Mutable Object> <: inference type: java.util.Map.Entry<K,V>
+  @Mutable Entry<@Mutable Object, @Mutable Object> @Mutable [] <: inference type: java.util.Map.Entry<K,V>[]
+  @Mutable Entry<@Mutable Object, @Mutable Object> @Mutable [] -> inference type: java.util.Map.Entry<K,V>[]
+  (Entry<Object, Object>[])ImmutableMap.EMPTY_ENTRY_ARRAY -> inference type: java.util.Map.Entry<K,V>[]
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[89,42] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryArray of RegularImmutableMap.fromEntryArray.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[110,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryArray of JdkBackedImmutableMap.create.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[124,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[133,25] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of IdentityHashMap.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[157,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for IdentityHashMap constructor
+  unsatisfiable constraint: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: @Immutable Object
+  use of K from new IdentityHashMap<>() = @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of K from new IdentityHashMap<>() <= @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  inference type: java.util.IdentityHashMap<K,V> <: @Readonly IdentityHashMap<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>, @Immutable Boolean>
+  inference type: java.util.IdentityHashMap<K,V> -> @Readonly IdentityHashMap<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>, @Immutable Boolean>
+  From: Constraint between method call type and target type for method call:new IdentityHashMap<>()
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[159,23] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of IdentityHashMap.put.
+  found   : @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[167,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[171,85] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter duplicates of RegularImmutableMap.removeDuplicates.
+  found   : @Mutable IdentityHashMap<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>, @Immutable Boolean>
+  required: @Mutable IdentityHashMap<@Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>, @Immutable Boolean>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[195,47] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[202,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter key of IdentityHashMap.put.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[226,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[227,17] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+  required: @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Readonly Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[270,20] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter keyTable of RegularImmutableMap.get.
+  found   : @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Readonly Object> @Immutable []
+  required: @Immutable ImmutableMapEntry<? extends @Immutable Object, V extends @Readonly Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[321,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularEntrySet constructor.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Immutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableMap.java:[369,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSet<K extends @Immutable Object>
+  method return type: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/primitives/UnsignedInts.java:[210,36] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable LexicographicalComparator
+  method return type: @Mutable Comparator<@Immutable int @Mutable []>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[67,14] [[immutability, pico, piconoinit, allcheckers]:methodref.receiver.invalid] Incompatible receiver type
+  found   : @Mutable Builder<@Mutable Comparable<? extends @Readonly Object>>
+  required: @Mutable Builder<@Readonly Comparable<? extends @Readonly Object>>
+  Consequence: method in @Mutable Builder<C extends @Readonly Comparable<? extends @Readonly Object>>
+    @Mutable Builder<@Mutable Comparable<? extends @Readonly Object>> add(@Mutable Builder<@Mutable Comparable<? extends @Readonly Object>> this, @Immutable Range<@Mutable Comparable<? extends @Readonly Object>> p0)
+  is not a valid method reference for method in @Mutable BiConsumer<@Mutable Builder<@Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<@Mutable Comparable<? extends @Readonly Object>>>
+    void accept(@Mutable BiConsumer<@Mutable Builder<@Readonly Comparable<? extends @Readonly Object>>, @Immutable Range<@Mutable Comparable<? extends @Readonly Object>>> this, @Mutable Builder<@Readonly Comparable<? extends @Readonly Object>> p0, @Immutable Range<@Mutable Comparable<? extends @Readonly Object>> p1)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[69,14] [[immutability, pico, piconoinit, allcheckers]:methodref.receiver.invalid] Incompatible receiver type
+  found   : @Mutable Builder<@Mutable Comparable<? extends @Readonly Object>>
+  required: @Mutable Builder<@Readonly Comparable<? extends @Readonly Object>>
+  Consequence: method in @Mutable Builder<C extends @Readonly Comparable<? extends @Readonly Object>>
+    @Immutable ImmutableRangeSet<@Mutable Comparable<? extends @Readonly Object>> build(@Mutable Builder<@Mutable Comparable<? extends @Readonly Object>> this)
+  is not a valid method reference for method in @Mutable Function<@Mutable Builder<@Readonly Comparable<? extends @Readonly Object>>, @Immutable ImmutableRangeSet<@Mutable Comparable<? extends @Readonly Object>>>
+    @Immutable ImmutableRangeSet<@Mutable Comparable<? extends @Readonly Object>> apply(@ReceiverDependentMutable Function<@Mutable Builder<@Readonly Comparable<? extends @Readonly Object>>, @Immutable ImmutableRangeSet<@Mutable Comparable<? extends @Readonly Object>>> this, @Mutable Builder<@Readonly Comparable<? extends @Readonly Object>> p0)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[133,81] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of ImmutableEnumSet.asImmutable.
+  found   : @Mutable EnumSet<E extends @Immutable Enum<E>>
+  required: @Immutable EnumSet</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[150,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Collector.of
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  use of E from LinkedHashMultiset::create = E extends @Readonly Object
+  From complementary bound.: use of E from LinkedHashMultiset::create <= E extends @Readonly Object
+  inference type: com.google.common.collect.LinkedHashMultiset<E> <: @Mutable Multiset<E extends @Readonly Object>
+  inference type: com.google.common.collect.LinkedHashMultiset<E> <: use of A from Collector.of(LinkedHashMultiset::create, (multiset,t)->multiset.add(checkNotNull(elementFunction.apply(t)), countFunction.applyAsInt(t)), (multiset1,multiset2)->{
+      multiset1.addAll(multiset2);
+      return multiset1;
+  }, (Multiset<E> multiset)->ImmutableMultiset.copyFromEntries(multiset.entrySet()))
+  From complementary bound.: inference type: com.google.common.collect.LinkedHashMultiset<E> -> use of A from Collector.of(LinkedHashMultiset::create, (multiset,t)->multiset.add(checkNotNull(elementFunction.apply(t)), countFunction.applyAsInt(t)), (multiset1,multiset2)->{
+      multiset1.addAll(multiset2);
+      return multiset1;
+  }, (Multiset<E> multiset)->ImmutableMultiset.copyFromEntries(multiset.entrySet()))
+  From: Constraint between method call type and target type for method call:LinkedHashMultiset::create
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[171,25] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to add(E,int) not allowed on the given receiver.
+  found   : M extends @Readonly Multiset<E extends @Readonly Object>
+  required: @Mutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[173,20] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to addAll(java.util.Collection<? extends E>) not allowed on the given receiver.
+  found   : M extends @Readonly Multiset<E extends @Readonly Object>
+  required: @Mutable Collection<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[241,129] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V of ImmutableBiMap.
+  found   : V extends @Mutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[248,9] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V of Builder.
+  found   : V extends @Mutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[249,8] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Builder.combine
+  unsatisfiable constraint: V extends @Mutable Object <: @Immutable Object
+  V extends @Mutable Object = use of V from ImmutableBiMap.Builder::combine
+  From complementary bound.: V extends @Mutable Object <= use of V from ImmutableBiMap.Builder::combine
+  @Mutable Builder<K extends @Immutable Object, V extends @Mutable Object> <: inference type: com.google.common.collect.ImmutableBiMap.Builder<K,V>
+  @Mutable Builder<K extends @Immutable Object, V extends @Mutable Object> -> inference type: com.google.common.collect.ImmutableBiMap.Builder<K,V>
+  From: Method reference: ImmutableBiMap.Builder::combine, constraint against arguments, index 0.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[250,8] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Builder.build
+  unsatisfiable constraint: V extends @Mutable Object <: @Immutable Object
+  V extends @Mutable Object = use of V from ImmutableBiMap.Builder::build
+  From complementary bound.: V extends @Mutable Object <= use of V from ImmutableBiMap.Builder::build
+  @Mutable Builder<K extends @Immutable Object, V extends @Mutable Object> <: inference type: com.google.common.collect.ImmutableBiMap.Builder<K,V>
+  @Mutable Builder<K extends @Immutable Object, V extends @Mutable Object> -> inference type: com.google.common.collect.ImmutableBiMap.Builder<K,V>
+  From: Method reference: ImmutableBiMap.Builder::build, constraint against arguments, index 0.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[335,27] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableMap<K [ extends @Immutable Enum<K> super @PICOBottom NullType ], V [ extends @Readonly Object super @Readonly NullType ]>
+  method return type: @Immutable ImmutableMap<K [ extends @Immutable Enum<K> super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[335,100] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of ImmutableEnumMap.asImmutable.
+  found   : @Mutable EnumMap<K extends @Immutable Enum<K>, V extends @Readonly Object>
+  required: @Mutable EnumMap<K extends @Immutable Enum<K>, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[356,47] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V of ImmutableListMultimap.
+  found   : V extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[363,9] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V of Builder.
+  found   : V extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[364,8] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Builder.combine
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object = use of V from ImmutableListMultimap.Builder::combine
+  From complementary bound.: V extends @Readonly Object <= use of V from ImmutableListMultimap.Builder::combine
+  @Mutable Builder<K extends @Immutable Object, V extends @Readonly Object> <: inference type: com.google.common.collect.ImmutableListMultimap.Builder<K,V>
+  @Mutable Builder<K extends @Immutable Object, V extends @Readonly Object> -> inference type: com.google.common.collect.ImmutableListMultimap.Builder<K,V>
+  From: Method reference: ImmutableListMultimap.Builder::combine, constraint against arguments, index 0.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[365,8] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Builder.build
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object = use of V from ImmutableListMultimap.Builder::build
+  From complementary bound.: V extends @Readonly Object <= use of V from ImmutableListMultimap.Builder::build
+  @Mutable Builder<K extends @Immutable Object, V extends @Readonly Object> <: inference type: com.google.common.collect.ImmutableListMultimap.Builder<K,V>
+  @Mutable Builder<K extends @Immutable Object, V extends @Readonly Object> -> inference type: com.google.common.collect.ImmutableListMultimap.Builder<K,V>
+  From: Method reference: ImmutableListMultimap.Builder::build, constraint against arguments, index 0.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[369,47] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V of ImmutableListMultimap.
+  found   : V extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[379,8] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableListMultimap.copyOf
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object <: use of V from ImmutableListMultimap::copyOf
+  From complementary bound.: V extends @Readonly Object <= inference type: ? extends V
+  @Mutable ListMultimap<K extends @Immutable Object, V extends @Readonly Object> <: inference type: com.google.common.collect.Multimap<? extends K,? extends V>
+  @Mutable ListMultimap<K extends @Immutable Object, V extends @Readonly Object> -> inference type: com.google.common.collect.Multimap<? extends K,? extends V>
+  From: Method reference: ImmutableListMultimap::copyOf, constraint against arguments, index 0.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[383,46] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V of ImmutableSetMultimap.
+  found   : V extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[390,9] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V of Builder.
+  found   : V extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[391,8] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Builder.combine
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object = use of V from ImmutableSetMultimap.Builder::combine
+  From complementary bound.: V extends @Readonly Object <= use of V from ImmutableSetMultimap.Builder::combine
+  @Mutable Builder<K extends @Immutable Object, V extends @Readonly Object> <: inference type: com.google.common.collect.ImmutableSetMultimap.Builder<K,V>
+  @Mutable Builder<K extends @Immutable Object, V extends @Readonly Object> -> inference type: com.google.common.collect.ImmutableSetMultimap.Builder<K,V>
+  From: Method reference: ImmutableSetMultimap.Builder::combine, constraint against arguments, index 0.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[392,8] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Builder.build
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object = use of V from ImmutableSetMultimap.Builder::build
+  From complementary bound.: V extends @Readonly Object <= use of V from ImmutableSetMultimap.Builder::build
+  @Mutable Builder<K extends @Immutable Object, V extends @Readonly Object> <: inference type: com.google.common.collect.ImmutableSetMultimap.Builder<K,V>
+  @Mutable Builder<K extends @Immutable Object, V extends @Readonly Object> -> inference type: com.google.common.collect.ImmutableSetMultimap.Builder<K,V>
+  From: Method reference: ImmutableSetMultimap.Builder::build, constraint against arguments, index 0.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[396,46] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V of ImmutableSetMultimap.
+  found   : V extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectCollectors.java:[406,8] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableSetMultimap.copyOf
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object <: use of V from ImmutableSetMultimap::copyOf
+  From complementary bound.: V extends @Readonly Object <= inference type: ? extends V
+  @Mutable SetMultimap<K extends @Immutable Object, V extends @Readonly Object> <: inference type: com.google.common.collect.Multimap<? extends K,? extends V>
+  @Mutable SetMultimap<K extends @Immutable Object, V extends @Readonly Object> -> inference type: com.google.common.collect.Multimap<? extends K,? extends V>
+  From: Method reference: ImmutableSetMultimap::copyOf, constraint against arguments, index 0.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableBiMap.java:[73,45] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CollectCollectors.toImmutableBiMap
+  unsatisfiable constraint: V extends @Immutable Object <: @Mutable Object
+  capture#0325 extends V extends @Immutable Object <: use of V from CollectCollectors.toImmutableBiMap(keyFunction, valueFunction)
+  From complementary bound.: capture#0325 extends V extends @Immutable Object <= inference type: ? extends V
+  @Mutable Function<capture#0326 extends @Readonly Object super T extends @Mutable Object, capture#0325 extends V extends @Immutable Object> <: inference type: java.util.function.Function<? super T,? extends V>
+  @Mutable Function<capture#0326 extends @Readonly Object super T extends @Mutable Object, capture#0325 extends V extends @Immutable Object> -> inference type: java.util.function.Function<? super T,? extends V>
+  valueFunction -> inference type: java.util.function.Function<? super T,? extends V>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableBiMap.java:[288,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularImmutableBiMap.fromEntries.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableBiMap.java:[480,23] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Arrays.sort
+  unsatisfiable constraint: @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> <: @Mutable Entry<? extends @Immutable Object, V extends @Immutable Object>
+  use of T from Arrays.sort(entries, 0, size, Ordering.from(valueComparator).onResultOf(Maps.<V>valueFunction())) <: use of F from Ordering.from(valueComparator).onResultOf(Maps.<V>valueFunction())
+  From complementary bound.: use of F from Ordering.from(valueComparator).onResultOf(Maps.<V>valueFunction()) <= inference type: ? super T
+  inference type: com.google.common.collect.Ordering<F> <: inference type: java.util.Comparator<? super T>
+  inference type: com.google.common.collect.Ordering<F> -> inference type: java.util.Comparator<? super T>
+  From: Constraint between method call type and target type for method call:Ordering.from(valueComparator).onResultOf(Maps.<V>valueFunction())
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableBiMap.java:[487,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryArray of RegularImmutableBiMap.fromEntryArray.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableBiMap.java:[521,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryArray of RegularImmutableBiMap.fromEntryArray.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableBiMap.java:[580,49] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularImmutableBiMap.fromEntries.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java:[50,22] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java:[71,27] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Map<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Immutable Map<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java:[72,28] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Map<V extends @Immutable Object, K extends @Immutable Object>
+  required: @Immutable Map<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java:[86,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable JdkBackedImmutableBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java:[89,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter forwardDelegate of JdkBackedImmutableBiMap constructor.
+  found   : @Immutable Map<V extends @Immutable Object, K extends @Immutable Object>
+  required: @Mutable Map<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java:[89,58] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backwardDelegate of JdkBackedImmutableBiMap constructor.
+  found   : @Immutable Map<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable Map<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java:[90,6] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable JdkBackedImmutableBiMap<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java:[101,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<V extends @Immutable Object, K extends @Immutable Object>
+  method return type: @Mutable Entry<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java:[123,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable RegularEntrySet<K extends @Immutable Object, V extends @Immutable Object>
+  method return type: @Immutable ImmutableSet<@Immutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableBiMap.java:[123,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularEntrySet constructor.
+  found   : @Immutable ImmutableList<@Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+  required: @Immutable ImmutableList<@Immutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumMap.java:[57,20] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable EnumMap<K extends @Immutable Enum<K>, V extends @Immutable Object>
+  required: @Immutable EnumMap<K extends @Immutable Enum<K>, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumMap.java:[93,48] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable EnumMap<capture#0327 extends @Immutable Enum<capture#0327>, capture#0328 extends @Immutable Object>
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumMap.java:[100,41] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<@Mutable Entry<K extends @Immutable Enum<K>, V extends @Immutable Object>>
+  method return type: @Immutable UnmodifiableIterator<@Mutable Entry<K extends @Immutable Enum<K>, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumMap.java:[100,70] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryIterator of Maps.unmodifiableEntryIterator.
+  found   : @Mutable Iterator<@Immutable Entry<K extends @Immutable Enum<K>, V extends @Immutable Object>>
+  required: @Readonly Iterator<@Mutable Entry<K extends @Immutable Enum<K>, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumMap.java:[105,34] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<@Readonly Entry<K extends @Immutable Enum<K>, V extends @Immutable Object>>
+  method return type: @Mutable Spliterator<@Mutable Entry<K extends @Immutable Enum<K>, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumMap.java:[105,34] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for CollectSpliterators.map
+  unsatisfiable constraint: @Readonly Entry<K extends @Immutable Enum<K>, V extends @Immutable Object> <: @Mutable Entry<K extends @Immutable Enum<K>, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumMap.java:[121,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of EnumSerializedForm constructor.
+  found   : @Immutable EnumMap<K extends @Immutable Enum<K>, V extends @Immutable Object>
+  required: @Mutable EnumMap<K extends @Immutable Enum<K>, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableEnumMap.java:[135,13] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for ImmutableEnumMap constructor
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  V extends @Readonly Object = use of V from new ImmutableEnumMap<>(delegate)
+  From complementary bound.: V extends @Readonly Object <= use of V from new ImmutableEnumMap<>(delegate)
+  @Mutable EnumMap<K extends @Immutable Enum<K>, V extends @Readonly Object> <: inference type: java.util.EnumMap<K,V>
+  @Mutable EnumMap<K extends @Immutable Enum<K>, V extends @Readonly Object> -> inference type: java.util.EnumMap<K,V>
+  delegate -> inference type: java.util.EnumMap<K,V>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Platform.java:[60,42] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Sets.newHashSetWithExpectedSize
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  use of E from Sets.newHashSetWithExpectedSize(expectedSize) = E extends @Readonly Object
+  From complementary bound.: use of E from Sets.newHashSetWithExpectedSize(expectedSize) <= E extends @Readonly Object
+  inference type: java.util.HashSet<E> <: @Mutable Set<E extends @Readonly Object>
+  inference type: java.util.HashSet<E> -> @Mutable Set<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:Sets.newHashSetWithExpectedSize(expectedSize)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Platform.java:[73,48] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Sets.newLinkedHashSetWithExpectedSize
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  use of E from Sets.newLinkedHashSetWithExpectedSize(expectedSize) = E extends @Readonly Object
+  From complementary bound.: use of E from Sets.newLinkedHashSetWithExpectedSize(expectedSize) <= E extends @Readonly Object
+  inference type: java.util.LinkedHashSet<E> <: @Mutable Set<E extends @Readonly Object>
+  inference type: java.util.LinkedHashSet<E> -> @Mutable Set<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:Sets.newLinkedHashSetWithExpectedSize(expectedSize)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Platform.java:[90,32] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Sets.newLinkedHashSet
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  use of E from Sets.newLinkedHashSet() = E extends @Readonly Object
+  From complementary bound.: use of E from Sets.newLinkedHashSet() <= E extends @Readonly Object
+  inference type: java.util.LinkedHashSet<E> <: @Mutable Set<E extends @Readonly Object>
+  inference type: java.util.LinkedHashSet<E> -> @Mutable Set<E extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:Sets.newLinkedHashSet()
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Platform.java:[126,91] [[immutability, pico, piconoinit, allcheckers]:static.receiverdependentmutable.forbidden] [@ReceiverDependentMutable] is forbidden in static context
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/hash/Striped64.java:[303,26] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/hash/Striped64.java:[28,33] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.extends.clause] Class with annotation @Mutable cannot extend @Immutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/hash/Striped64.java:[153,14] [[immutability, pico, piconoinit, allcheckers]:super.invocation.invalid] Constructor of type @Mutable cannot call super() of type @Immutable.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/primitives/UnsignedBytes.java:[359,30] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/primitives/UnsignedInteger.java:[51,43] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.extends.clause] Class with annotation @Mutable cannot extend @Immutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/primitives/UnsignedInteger.java:[58,37] [[immutability, pico, piconoinit, allcheckers]:super.invocation.invalid] Constructor of type @Mutable cannot call super() of type @Immutable.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AtomicDouble.java:[62,34] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.extends.clause] Class with annotation @Mutable cannot extend @Immutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AtomicDouble.java:[76,43] [[immutability, pico, piconoinit, allcheckers]:super.invocation.invalid] Constructor of type @Mutable cannot call super() of type @Immutable.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/util/concurrent/AtomicDouble.java:[81,24] [[immutability, pico, piconoinit, allcheckers]:super.invocation.invalid] Constructor of type @Mutable cannot call super() of type @Immutable.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[257,27] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[257,27] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @Immutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object> <: @PolyMutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from requireNonNull(predecessorInMultimap) <: @PolyMutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from requireNonNull(predecessorInMultimap) -> @PolyMutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:requireNonNull(predecessorInMultimap)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[261,27] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[261,27] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @Immutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object> <: @PolyMutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from requireNonNull(successorInMultimap) <: @PolyMutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from requireNonNull(successorInMultimap) -> @PolyMutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:requireNonNull(successorInMultimap)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[281,95] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of LinkedHashMultimapGwtSerializationDependencies constructor.
+  found   : @Mutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+  required: @ReceiverDependentMutable Map<K extends @Immutable Object, @ReceiverDependentMutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[342,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @PolyMutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[458,50] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable ValueSetLink<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable ValueSetLink<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[491,64] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to mask() not allowed on the given receiver.
+  found   : @Mutable LinkedHashMultimap<K extends @Immutable Object, V extends @Readonly Object>.@Readonly ValueSet
+  required: @Mutable LinkedHashMultimap<K extends @Immutable Object, V extends @Readonly Object>.@PICOLost ValueSet
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[513,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter succ of LinkedHashMultimap.succeedsInValueSet.
+  found   : @Immutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable ValueSetLink<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[514,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter pred of LinkedHashMultimap.succeedsInValueSet.
+  found   : @Immutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable ValueSetLink<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[535,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[555,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[557,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entry of LinkedHashMultimap.deleteFromValueSet.
+  found   : @Immutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable ValueSetLink<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[601,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ValueEntry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[615,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Mutable Spliterator<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[615,35] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Spliterators.spliterator
+  unsatisfiable constraint: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object> <: @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from Spliterators.spliterator(entries(), Spliterator.DISTINCT | Spliterator.ORDERED) <: @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from Spliterators.spliterator(entries(), Spliterator.DISTINCT | Spliterator.ORDERED) <= @PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  inference type: java.util.Spliterator<T> <: @Mutable Spliterator<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  inference type: java.util.Spliterator<T> -> @Mutable Spliterator<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  From: Constraint between method call type and target type for method call:Spliterators.spliterator(entries(), Spliterator.DISTINCT | Spliterator.ORDERED)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[655,24] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable LinkedHashMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[657,21] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable LinkedHashMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[662,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[663,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg1 of Map.put.
+  found   : @ReceiverDependentMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[668,14] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Mutable Object" to "K [ extends @Immutable Object super @PICOBottom NullType ]" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultimap.java:[677,10] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to setMap(java.util.Map<K,java.util.Collection<V>>) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable LinkedHashMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable AbstractMapBasedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultiset.java:[87,10] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backingMap of AbstractMapBasedMultiset constructor.
+  found   : @Mutable LinkedHashMap<E extends @Immutable Object, @Mutable Count>
+  required: @ReceiverDependentMutable Map<E extends @Immutable Object, @Mutable Count>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultiset.java:[91,57] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backingMap of AbstractMapBasedMultiset constructor.
+  found   : @Mutable LinkedHashMap<E extends @Immutable Object, @Mutable Count>
+  required: @ReceiverDependentMutable Map<E extends @Immutable Object, @Mutable Count>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultiset.java:[101,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of Serialization.writeMultiset.
+  found   : @ReceiverDependentMutable LinkedHashMultiset<E extends @Immutable Object>
+  required: @Mutable Multiset<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultiset.java:[108,18] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backingMap of AbstractMapBasedMultiset.setBackingMap.
+  found   : @Mutable LinkedHashMap<E extends @Immutable Object, @Mutable Count>
+  required: @ReceiverDependentMutable Map<E extends @Immutable Object, @Mutable Count>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultiset.java:[109,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of Serialization.populateMultiset.
+  found   : @ReceiverDependentMutable LinkedHashMultiset<E extends @Immutable Object>
+  required: @Mutable Multiset<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/LinkedHashMultiset.java:[123,84] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to remove(@org.checkerframework.checker.pico.qual.Readonly java.lang.Object,int) not allowed on the given receiver.
+  found   : @ReceiverDependentMutable LinkedHashMultiset<E extends @Immutable Object>
+  required: @Mutable AbstractMapBasedMultiset<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[81,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[91,40] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[113,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[123,39] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[145,34] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[155,40] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[177,33] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[187,41] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[209,32] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[219,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[219,29] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Iterables.getFirst
+  unsatisfiable constraint: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from Iterables.getFirst(entrySet(), null) <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from Iterables.getFirst(entrySet(), null) -> @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:Iterables.getFirst(entrySet(), null)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[239,31] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[249,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[249,29] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Iterables.getFirst
+  unsatisfiable constraint: @Readonly Entry<K extends @Immutable Object, V extends @Readonly Object> <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  use of T from Iterables.getFirst(descendingMap().entrySet(), null) <: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From complementary bound.: use of T from Iterables.getFirst(descendingMap().entrySet(), null) -> @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:Iterables.getFirst(descendingMap().entrySet(), null)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[321,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable ForwardingNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ForwardingNavigableMap.java:[383,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of NavigableKeySet constructor.
+  found   : @Mutable ForwardingNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/TransformedListIterator.java:[43,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable ListIterator<F extends @Readonly Object>
+  method return type: @Mutable ListIterator<? extends F extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/FinalizableSoftReference.java:[43,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter q of SoftReference constructor.
+  found   : @Mutable ReferenceQueue<@Mutable Object>
+  required: @Mutable ReferenceQueue<? extends @Readonly Object super T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[66,18] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : V extends @Readonly Object @Mutable [] @Mutable []
+  required: V extends @Readonly Object @Immutable [] @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[69,16] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[70,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[88,26] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[89,29] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[136,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @Immutable UnmodifiableIterator<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[146,40] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[257,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of ImmutableMap.copyOf.
+  found   : @Immutable ImmutableMap<C extends @Immutable Object, @Immutable ImmutableMap<R extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Map<? extends C extends @Immutable Object, ? extends @Mutable Map<R extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[264,45] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of ImmutableMap.copyOf.
+  found   : @Immutable ImmutableMap<R extends @Immutable Object, @Immutable ImmutableMap<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Map<? extends R extends @Immutable Object, ? extends @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[299,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter cellRowIndices of SerializedForm.create.
+  found   : @Immutable int @Immutable []
+  required: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/DenseImmutableTable.java:[299,55] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter cellColumnIndices of SerializedForm.create.
+  found   : @Immutable int @Immutable []
+  required: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java:[58,50] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable Entry<E extends @Immutable Object>
+  required: @Mutable Entry<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java:[67,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Map<E extends @Immutable Object, @Immutable Integer>
+  required: @Immutable Map<E extends @Immutable Object, @Immutable Integer>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java:[82,41] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Immutable JdkBackedImmutableMultiset<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java:[82,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of ElementSet constructor.
+  found   : @Immutable ImmutableList<@Mutable Entry<E extends @Immutable Object>>
+  required: @Mutable List<@Mutable Entry<E extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java:[82,69] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of ElementSet constructor.
+  found   : @Immutable JdkBackedImmutableMultiset<E extends @Immutable Object>
+  required: @Mutable Multiset<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[136,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Immutable EmptyModifiableIterator" to "@Mutable Iterator<T [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[148,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Readonly <anonymous com.google.common.collect.Iterators$1> <init>() not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[148,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<T extends @Readonly Object>
+  method return type: @Immutable UnmodifiableIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[181,19] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Readonly Iterator<? extends @Readonly Object>
+  required: @Mutable Iterator<capture#0331 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[286,32] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Readonly Iterator<? extends @Readonly Object>
+  required: @Mutable Iterator<capture#0332 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[287,32] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Readonly Iterator<? extends @Readonly Object>
+  required: @Mutable Iterator<capture#0333 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[308,29] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Readonly Iterator<? extends @Readonly Object>
+  required: @Mutable Iterator<capture#0334 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[322,27] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Readonly Iterator<T extends @Readonly Object>
+  required: @Mutable Iterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[329,42] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Readonly Iterator<T extends @Readonly Object>
+  required: @Mutable Iterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[479,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Readonly <anonymous com.google.common.collect.Iterators$3> <init>() not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[479,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Iterator<I extends @Mutable Iterator<? extends @Readonly Object>>
+  method return type: @Mutable Iterator<I extends @Mutable Iterator<? extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[639,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Readonly <anonymous com.google.common.collect.Iterators$4> <init>() not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[639,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<@Mutable List<@org.checkerframework.checker.nullness.qual.Nullable T extends @Readonly Object>>
+  method return type: @Immutable UnmodifiableIterator<@Mutable List<@org.checkerframework.checker.nullness.qual.Nullable T extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[664,17] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<T extends @Readonly Object>
+  method return type: @Mutable List<@org.checkerframework.checker.nullness.qual.Nullable T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[666,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable List<T extends @Readonly Object>
+  method return type: @Mutable List<@org.checkerframework.checker.nullness.qual.Nullable T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[680,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable UnmodifiableIterator<T extends @Readonly Object>
+  method return type: @Immutable UnmodifiableIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1012,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Readonly <anonymous com.google.common.collect.Iterators$8> <init>() not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1012,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Iterator<T extends @Readonly Object>
+  method return type: @Mutable Iterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1092,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable ArrayItr<T extends @Readonly Object>
+  method return type: @Immutable UnmodifiableListIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1098,84] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of ArrayItr constructor.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1123,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Readonly <anonymous com.google.common.collect.Iterators$9> <init>() not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1123,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<T extends @Readonly Object>
+  method return type: @Immutable UnmodifiableIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1156,11] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Readonly <anonymous com.google.common.collect.Iterators$10> <init>() not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1156,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly UnmodifiableIterator<T extends @Readonly Object>
+  method return type: @Immutable UnmodifiableIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1232,22] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly PeekingImpl<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1232,37] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @PICOLost Iterator<? extends E extends @Readonly Object>
+  required: @Mutable Iterator<capture#0335 extends E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1233,18] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly PeekingImpl<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1318,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable MergingIterator<T extends @Readonly Object>
+  method return type: @Immutable UnmodifiableIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1332,105] [[immutability, pico, piconoinit, allcheckers]:declaration.inconsistent.with.extends.clause] Class with annotation @ReceiverDependentMutable cannot extend @Immutable
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1336,99] [[immutability, pico, piconoinit, allcheckers]:super.invocation.invalid] Constructor of type @ReceiverDependentMutable cannot call super() of type @Immutable.
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1399,26] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable ConcatenatedIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1399,53] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<capture#0336 extends @Mutable Iterator<? extends T extends @Readonly Object>>
+  required: @PolyMutable Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1399,53] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to removeFirst() not allowed on the given receiver.
+  found   : @PolyMutable Deque<@Mutable Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>>
+  required: @Mutable Deque<@Mutable Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1413,24] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly ConcatenatedIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1413,44] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly Iterator<capture#0337 extends @Mutable Iterator<? extends T extends @Readonly Object>>
+  required: @PICOLost Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1418,17] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly ConcatenatedIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1418,39] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @PICOLost Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>
+  required: @Mutable Iterator<capture#0338 extends @Mutable Iterator<? extends T extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1425,19] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly ConcatenatedIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1431,12] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly ConcatenatedIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1431,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable ArrayDeque<@Mutable Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>>
+  required: @PICOLost Deque<@Mutable Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1433,37] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to addFirst(E) not allowed on the given receiver.
+  found   : @PICOLost Deque<@Mutable Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>>
+  required: @Mutable Deque<@Mutable Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1433,42] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of Deque.addFirst.
+  found   : @PICOLost Iterator<capture#0339 extends @Mutable Iterator<? extends T extends @Readonly Object>>
+  required: @Mutable Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1436,41] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to addFirst(E) not allowed on the given receiver.
+  found   : @PICOLost Deque<@Mutable Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>>
+  required: @Mutable Deque<@Mutable Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1439,10] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @Readonly ConcatenatedIterator<T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1439,42] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Iterator<capture#0340 extends @Mutable Iterator<? extends T extends @Readonly Object>>
+  required: @PICOLost Iterator<? extends @Mutable Iterator<? extends T extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1449,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly Iterator<capture#0341 extends T extends @Readonly Object>
+  required: @Mutable Iterator<? extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Iterators.java:[1450,28] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to next() not allowed on the given receiver.
+  found   : @Readonly Iterator<? extends T extends @Readonly Object>
+  required: @Mutable Iterator<capture#0342 extends T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredMultimapValues.java:[88,85] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter target of Predicates.in.
+  found   : @Readonly Collection<capture#0343 extends @Readonly Object>
+  required: @Mutable Collection<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/FilteredMultimapValues.java:[98,73] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter target of Predicates.in.
+  found   : @Readonly Collection<capture#0344 extends @Readonly Object>
+  required: @Mutable Collection<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/cache/Striped64.java:[297,26] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[55,32] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to comparator() not allowed on the given receiver.
+  found   : @Readonly SortedMultiset<E extends @Readonly Object>
+  required: @PICOLost SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[60,40] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly NavigableSet<E extends @Readonly Object>
+  method return type: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[60,62] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to elementSet() not allowed on the given receiver.
+  found   : @Readonly SortedMultiset<E extends @Readonly Object>
+  required: @PICOLost SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[65,11] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Immutable Set<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable NavigableSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[75,56] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to delegate() not allowed on the given receiver.
+  found   : @Readonly UnmodifiableSortedMultiset<E extends @Readonly Object>
+  required: @Immutable UnmodifiableSortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[75,77] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to descendingMultiset() not allowed on the given receiver.
+  found   : @Readonly SortedMultiset<E extends @Readonly Object>
+  required: @PICOLost SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[76,34] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly UnmodifiableSortedMultiset<E extends @Readonly Object>
+  required: @Immutable UnmodifiableSortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[85,32] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to firstEntry() not allowed on the given receiver.
+  found   : @Readonly SortedMultiset<E extends @Readonly Object>
+  required: @PICOLost SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[91,31] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to lastEntry() not allowed on the given receiver.
+  found   : @Readonly SortedMultiset<E extends @Readonly Object>
+  required: @PICOLost SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[108,47] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly SortedMultiset<E extends @Readonly Object>
+  method return type: @Mutable SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[108,71] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to headMultiset(E,com.google.common.collect.BoundType) not allowed on the given receiver.
+  found   : @Readonly SortedMultiset<E extends @Readonly Object>
+  required: @PICOLost SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[117,47] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly SortedMultiset<E extends @Readonly Object>
+  method return type: @Mutable SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[118,30] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to subMultiset(E,com.google.common.collect.BoundType,E,com.google.common.collect.BoundType) not allowed on the given receiver.
+  found   : @Readonly SortedMultiset<E extends @Readonly Object>
+  required: @PICOLost SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[123,47] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly SortedMultiset<E extends @Readonly Object>
+  method return type: @Mutable SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/UnmodifiableSortedMultiset.java:[123,71] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to tailMultiset(E,com.google.common.collect.BoundType) not allowed on the given receiver.
+  found   : @Readonly SortedMultiset<E extends @Readonly Object>
+  required: @PICOLost SortedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/EndpointPairIterator.java:[43,63] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable UnmodifiableIterator<N extends @Readonly Object>
+  required: @Mutable Iterator<N extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/EndpointPairIterator.java:[124,57] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Sets.newHashSetWithExpectedSize
+  unsatisfiable constraint: N extends @Readonly Object <: @Immutable Object
+  use of E from Sets.newHashSetWithExpectedSize(graph.nodes().size() + 1) = N extends @Readonly Object
+  From complementary bound.: use of E from Sets.newHashSetWithExpectedSize(graph.nodes().size() + 1) <= N extends @Readonly Object
+  inference type: java.util.HashSet<E> <: @Mutable Set<N extends @Readonly Object>
+  inference type: java.util.HashSet<E> -> @Mutable Set<N extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:Sets.newHashSetWithExpectedSize(graph.nodes().size() + 1)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/StandardNetwork.java:[59,25] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of MapIteratorCache.
+  found   : N extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/StandardNetwork.java:[63,25] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of MapIteratorCache.
+  found   : E extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/StandardNetwork.java:[80,10] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Map.
+  found   : N extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/StandardNetwork.java:[81,10] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of Map.
+  found   : E extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/StandardNetwork.java:[92,35] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K of MapIteratorCache.
+  found   : N extends @Readonly Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/StandardNetwork.java:[93,31] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for MapIteratorCache constructor
+  unsatisfiable constraint: E extends @Readonly Object <: @Immutable Object
+  E extends @Readonly Object = use of K from new MapIteratorCache<>(edgeToReferenceNode)
+  From complementary bound.: E extends @Readonly Object <= use of K from new MapIteratorCache<>(edgeToReferenceNode)
+  @Mutable Map<E extends @Readonly Object, N extends @Readonly Object> <: inference type: @org.checkerframework.checker.pico.qual.ReceiverDependentMutable java.util.Map<K,V>
+  @Mutable Map<E extends @Readonly Object, N extends @Readonly Object> -> inference type: @org.checkerframework.checker.pico.qual.ReceiverDependentMutable java.util.Map<K,V>
+  edgeToReferenceNode -> inference type: @org.checkerframework.checker.pico.qual.ReceiverDependentMutable java.util.Map<K,V>
+  From: Argument constraint
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/StandardNetwork.java:[98,45] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Set<N extends @Readonly Object>
+  method return type: @Mutable Set<N extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/StandardNetwork.java:[103,49] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Set<E extends @Readonly Object>
+  method return type: @Mutable Set<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/graph/StandardNetwork.java:[153,28] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSet<E extends @Readonly Object>
+  method return type: @Mutable Set<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[141,40] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter K0 of MultimapBuilderWithKeys.
+  found   : @Mutable Comparable</*RAW*/>
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[142,19] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for MultimapBuilder.treeKeys
+  unsatisfiable constraint: @Mutable Comparable</*RAW*/> <: @Immutable Object
+  use of K0 from treeKeys(Ordering.natural()) = @Mutable Comparable</*RAW*/>
+  From complementary bound.: use of K0 from treeKeys(Ordering.natural()) <= @Mutable Comparable</*RAW*/>
+  inference type: com.google.common.collect.MultimapBuilder.MultimapBuilderWithKeys<K0> <: @Mutable MultimapBuilderWithKeys<@Mutable Comparable</*RAW*/>>
+  inference type: com.google.common.collect.MultimapBuilder.MultimapBuilderWithKeys<K0> -> @Mutable MultimapBuilderWithKeys<@Mutable Comparable</*RAW*/>>
+  From: Constraint between method call type and target type for method call:treeKeys(Ordering.natural())
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[207,33] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Immutable LinkedListSupplier" to "@Mutable Supplier</*RAW TYPE ARGUMENT:*/ ? [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[255,13] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for TreeSet constructor
+  unsatisfiable constraint: V extends @Readonly Object <: @Immutable Object
+  use of E from new TreeSet<>(comparator) = V extends @Readonly Object
+  From complementary bound.: use of E from new TreeSet<>(comparator) <= V extends @Readonly Object
+  inference type: java.util.TreeSet<E> <: @Mutable SortedSet<V extends @Readonly Object>
+  inference type: java.util.TreeSet<E> -> @Mutable SortedSet<V extends @Readonly Object>
+  From: Constraint between method call type and target type for method call:new TreeSet<>(comparator)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[387,85] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter comparator of TreeSetSupplier constructor.
+  found   : @Mutable Comparator<V0 extends @Mutable Object>
+  required: @Mutable Comparator<? extends @Readonly Object super V extends V0 extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[393,56] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V0 of SetMultimapBuilder.
+  found   : V0 extends @Immutable Enum<V0>
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[395,40] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter V0 of SetMultimapBuilder.
+  found   : V0 extends @Immutable Enum<V0 extends @Immutable Enum<V0>>
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[397,40] [[immutability, pico, piconoinit, allcheckers]:type.invalid.annotations.on.use] invalid type: annotations [@Readonly] conflict with declaration of type java.lang.Enum
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[397,69] [[immutability, pico, piconoinit, allcheckers]:type.invalid.annotations.on.use] invalid type: annotations [@Readonly] conflict with declaration of type java.lang.Enum
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[401,23] [[immutability, pico, piconoinit, allcheckers]:type.invalid.annotations.on.use] invalid type: annotations [@Readonly] conflict with declaration of type java.lang.Enum
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[402,86] [[immutability, pico, piconoinit, allcheckers]:type.invalid.annotations.on.use] invalid type: annotations [@Readonly] conflict with declaration of type java.lang.Enum
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MultimapBuilder.java:[402,90] [[immutability, pico, piconoinit, allcheckers]:type.invalid.annotations.on.use] invalid type: annotations [@Readonly] conflict with declaration of type java.lang.Enum
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/SingletonImmutableBiMap.java:[97,46] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter element of ImmutableSet.of.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSet.java:[55,20] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Readonly []
+  required: @Mutable Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSet.java:[57,17] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Object @Mutable []
+  required: @Mutable Object @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSet.java:[86,56] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter array of Iterators.forArray.
+  found   : @Mutable Object @Immutable []
+  required: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSet.java:[91,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Spliterator<E extends @Mutable Object>
+  method return type: @Mutable Spliterator<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableSet.java:[96,11] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Object @Immutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[144,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[145,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[151,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[151,23] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[152,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[152,21] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[160,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[161,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[190,17] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[196,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[226,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[226,31] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[227,14] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[227,29] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable int @Mutable []
+  required: @Immutable int @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[242,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter c of ObjectArrays.toArrayImpl.
+  found   : @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+  required: @Mutable Collection<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[261,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[262,4] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable CompactLinkedHashSet<E extends @Mutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[265,18] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of Arrays.fill.
+  found   : @Immutable int @ReceiverDependentMutable []
+  required: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[266,18] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter a of Arrays.fill.
+  found   : @Immutable int @ReceiverDependentMutable []
+  required: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[277,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable int @ReceiverDependentMutable []
+  method return type: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[277,25] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @Immutable int @ReceiverDependentMutable [] <: @Immutable int @Mutable []
+  use of T from requireNonNull(predecessor) <: @Immutable int @Mutable []
+  From complementary bound.: use of T from requireNonNull(predecessor) -> @Immutable int @Mutable []
+  From: Constraint between method call type and target type for method call:requireNonNull(predecessor)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[281,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable int @ReceiverDependentMutable []
+  method return type: @Immutable int @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CompactLinkedHashSet.java:[281,25] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Objects.requireNonNull
+  unsatisfiable constraint: @Immutable int @ReceiverDependentMutable [] <: @Immutable int @Mutable []
+  use of T from requireNonNull(successor) <: @Immutable int @Mutable []
+  From complementary bound.: use of T from requireNonNull(successor) -> @Immutable int @Mutable []
+  From: Constraint between method call type and target type for method call:requireNonNull(successor)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableMap.java:[94,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegateMap of JdkBackedImmutableMap constructor.
+  found   : @Mutable Map<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Immutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/JdkBackedImmutableMap.java:[118,60] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularEntrySet constructor.
+  found   : @Immutable ImmutableList<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Immutable ImmutableList<@Immutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[59,22] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularImmutableBiMap constructor.
+  found   : @Mutable Entry<@Immutable Object, @Immutable Object> @Mutable []
+  required: @Immutable Entry<@Immutable Object, @Immutable Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[70,42] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryArray of RegularImmutableBiMap.fromEntryArray.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[86,33] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Readonly Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Readonly []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[86,35] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Immutable Entry<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Immutable Object super @PICOBottom NullType ]> @Immutable []" to "@Mutable Entry<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Immutable Object super @PICOBottom NullType ]> @Mutable []" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[106,49] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entryArray of JdkBackedImmutableBiMap.create.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Immutable []
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[115,19] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[118,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter keyTable of RegularImmutableBiMap constructor.
+  found   : @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Immutable Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[118,49] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter valueTable of RegularImmutableBiMap constructor.
+  found   : @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Immutable Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[118,61] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularImmutableBiMap constructor.
+  found   : @Mutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Immutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[156,40] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter keyTable of RegularImmutableMap.get.
+  found   : @Immutable ImmutableMapEntry<K extends @Immutable Object, V extends @Immutable Object> @Immutable []
+  required: @Immutable ImmutableMapEntry<? extends @Immutable Object, V extends @Immutable Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[162,8] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable ImmutableSet<@Readonly Entry<K extends @Immutable Object, V extends @Immutable Object>>
+  method return type: @Immutable ImmutableSet<@Immutable Entry<K extends @Immutable Object, V extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[163,63] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter entries of RegularEntrySet constructor.
+  found   : @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Immutable []
+  required: @Immutable Entry<K extends @Immutable Object, V extends @Immutable Object> @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[253,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable RegularImmutableBiMap<K extends @Immutable Object, V extends @Immutable Object>.@Immutable Inverse.@Immutable InverseEntrySet
+  method return type: @Immutable ImmutableSet<@Immutable Entry<V extends @Immutable Object, K extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[285,15] [[immutability, pico, piconoinit, allcheckers]:constructor.invocation.invalid] creation of @Immutable RegularImmutableBiMap<K extends @Immutable Object, V extends @Immutable Object>.@Immutable Inverse.@Immutable InverseEntrySet.@Readonly <anonymous com.google.common.collect.RegularImmutableBiMap$Inverse$InverseEntrySet$1> <init>(@Immutable RegularImmutableBiMap<K extends @Immutable Object, V extends @Immutable Object>.@Immutable Inverse.@Immutable InverseEntrySet this) not allowed with given receiver.
+  found   : @Readonly
+  required: @Readonly
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[285,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly ImmutableList<@Mutable Entry<V extends @Immutable Object, K extends @Immutable Object>>
+  method return type: @Immutable ImmutableList<@Mutable Entry<V extends @Immutable Object, K extends @Immutable Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/RegularImmutableBiMap.java:[289,38] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<V extends @Immutable Object, K extends @Immutable Object>
+  method return type: @Mutable Entry<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/base/FinalizablePhantomReference.java:[45,25] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter q of PhantomReference constructor.
+  found   : @Mutable ReferenceQueue<@Mutable Object>
+  required: @Mutable ReferenceQueue<? extends @Readonly Object super T extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[270,33] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Object @Mutable []
+  method return type: @Mutable Object @Mutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[355,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedSet<E extends @Readonly Object>
+  method return type: @PolyMutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[355,42] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Synchronized.sortedSet.
+  found   : @PolyMutable SortedSet<E extends @Readonly Object>
+  required: @Mutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[363,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedSet<E extends @Readonly Object>
+  method return type: @PolyMutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[363,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Synchronized.sortedSet.
+  found   : @PolyMutable SortedSet<E extends @Readonly Object>
+  required: @Mutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[371,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedSet<E extends @Readonly Object>
+  method return type: @PolyMutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[371,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Synchronized.sortedSet.
+  found   : @PolyMutable SortedSet<E extends @Readonly Object>
+  required: @Mutable SortedSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[410,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable List<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[410,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable List<E extends @Readonly Object>
+  method return type: @PolyMutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[492,19] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable List<E extends @Readonly Object>
+  method return type: @PolyMutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[492,38] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter list of Synchronized.list.
+  found   : @PolyMutable List<E extends @Readonly Object>
+  required: @Mutable List<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[548,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Collection<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable Multiset<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[548,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Multiset<E extends @Readonly Object>
+  method return type: @PolyMutable Multiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[591,21] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[591,40] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<E extends @Readonly Object>
+  required: @PolyMutable Set<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[591,62] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Synchronized.typePreservingSet.
+  found   : @PolyMutable Set<E extends @Readonly Object>
+  required: @Mutable Set<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[602,19] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedMultiset<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[602,38] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<@Mutable Entry<E extends @Readonly Object>>
+  required: @PolyMutable Set<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[602,58] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Synchronized.typePreservingSet.
+  found   : @PolyMutable Set<@Mutable Entry<E extends @Readonly Object>>
+  required: @Mutable Set<@Mutable Entry<E extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[650,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Object" to "@Mutable Multimap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[650,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable Multimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[700,54] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter collection of Synchronized.typePreservingCollection.
+  found   : @Readonly Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[758,17] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[758,36] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<K extends @Immutable Object>
+  required: @PolyMutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[758,54] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Synchronized.typePreservingSet.
+  found   : @PolyMutable Set<K extends @Immutable Object>
+  required: @Mutable Set<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[769,27] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[769,39] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Collection<V extends @Readonly Object>
+  required: @PolyMutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[769,57] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter collection of Synchronized.collection.
+  found   : @PolyMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[780,18] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[780,44] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Collection<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @PolyMutable Collection<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[780,63] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter collection of Synchronized.typePreservingCollection.
+  found   : @PolyMutable Collection<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Collection<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[797,16] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[797,18] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable SynchronizedAsMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PolyMutable Map<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[797,58] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of SynchronizedAsMap constructor.
+  found   : @PolyMutable Map<K extends @Immutable Object, @PolyMutable Collection<V extends @Readonly Object>>
+  required: @Mutable Map<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[807,15] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[807,25] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Multiset<K extends @Immutable Object>
+  required: @PolyMutable Multiset<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[807,41] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of Synchronized.multiset.
+  found   : @PolyMutable Multiset<K extends @Immutable Object>
+  required: @Mutable Multiset<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[853,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Multimap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable ListMultimap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[853,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable ListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable ListMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[859,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter list of Synchronized.list.
+  found   : @PICOLost List<V extends @Readonly Object>
+  required: @Mutable List<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[900,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Multimap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SetMultimap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[900,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable SetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[906,18] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Set<V extends @Readonly Object>
+  method return type: @Mutable Set<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[913,35] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Set<V extends @Readonly Object>
+  method return type: @Mutable Set<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[920,39] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Readonly Set<V extends @Readonly Object>
+  method return type: @Mutable Set<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[929,19] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[929,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Synchronized.set.
+  found   : @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @PolyMutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[957,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable SetMultimap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedSetMultimap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[957,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable SortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[985,41] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to valueComparator() not allowed on the given receiver.
+  found   : @Readonly SortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost SortedSetMultimap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1057,70] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter c of ObjectArrays.toArrayImpl.
+  found   : @ReceiverDependentMutable Set<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+  required: @Mutable Collection<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1141,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Object" to "@Mutable Map<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1141,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1172,19] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1172,44] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter set of Synchronized.set.
+  found   : @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+  required: @PolyMutable Set<@Mutable Entry<K extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1198,38] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to getOrDefault(java.lang.Object,V) not allowed on the given receiver.
+  found   : @Readonly Map<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PICOLost Map<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1214,17] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1324,17] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1324,29] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Collection<V extends @Readonly Object>
+  required: @PolyMutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1324,47] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter collection of Synchronized.collection.
+  found   : @PolyMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1367,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Map<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable SortedMap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1367,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1388,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter sortedMap of Synchronized.sortedMap.
+  found   : @Readonly SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1402,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1402,42] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter sortedMap of Synchronized.sortedMap.
+  found   : @PolyMutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1409,24] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1409,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter sortedMap of Synchronized.sortedMap.
+  found   : @PolyMutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable SortedMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1439,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Map<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Immutable Object super @PICOBottom NullType ]>" to "@Mutable BiMap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Immutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1439,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable BiMap<K extends @Immutable Object, V extends @Immutable Object>
+  method return type: @PolyMutable BiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1447,19] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1447,24] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable Set<V extends @Immutable Object>
+  required: @PolyMutable Set<V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1465,18] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedBiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1465,20] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable SynchronizedBiMap<V extends @Immutable Object, K extends @Immutable Object>
+  required: @PolyMutable BiMap<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1465,62] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of SynchronizedBiMap constructor.
+  found   : @PolyMutable BiMap<V extends @Immutable Object, K extends @Immutable Object>
+  required: @Mutable BiMap<V extends @Immutable Object, K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1465,73] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter inverse of SynchronizedBiMap constructor.
+  found   : @PolyMutable SynchronizedBiMap<K extends @Immutable Object, V extends @Immutable Object>
+  required: @Mutable BiMap<K extends @Immutable Object, V extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1498,24] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedAsMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1498,26] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable SynchronizedAsMapEntries<K extends @Immutable Object, V extends @Readonly Object>
+  required: @PolyMutable Set<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1498,76] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of SynchronizedAsMapEntries constructor.
+  found   : @PolyMutable Set<@PolyMutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+  required: @Mutable Set<@Mutable Entry<K extends @Immutable Object, @Mutable Collection<V extends @Readonly Object>>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1509,22] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedAsMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1509,24] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable SynchronizedAsMapValues<V extends @Readonly Object>
+  required: @PolyMutable Collection<@Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1509,72] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of SynchronizedAsMapValues constructor.
+  found   : @PolyMutable Collection<@Mutable Collection<V extends @Readonly Object>>
+  required: @Mutable Collection<@Mutable Collection<V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1586,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable SortedSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable NavigableSet<E [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1586,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableSet<E extends @Readonly Object>
+  method return type: @PolyMutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1608,81] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter navigableSet of Synchronized.navigableSet.
+  found   : @PolyMutable NavigableSet<E extends @Readonly Object>
+  required: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1609,24] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @PolyMutable SynchronizedNavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1609,26] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableSet<E extends @Readonly Object>
+  required: @PolyMutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1610,17] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable NavigableSet<E extends @Readonly Object>
+  method return type: @PolyMutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1627,59] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter navigableSet of Synchronized.navigableSet.
+  found   : @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  required: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1656,35] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to pollFirst() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  required: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1664,34] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to pollLast() not allowed on the given receiver.
+  found   : @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  required: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1673,29] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter navigableSet of Synchronized.navigableSet.
+  found   : @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  required: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1685,59] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter navigableSet of Synchronized.navigableSet.
+  found   : @ReceiverDependentMutable NavigableSet<E extends @Readonly Object>
+  required: @Mutable NavigableSet<E extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1732,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable SortedMap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable NavigableMap<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1757,34] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable SynchronizedNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1757,34] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<K extends @Immutable Object>
+  method return type: @Mutable NavigableSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1757,61] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableSet<K extends @Immutable Object>
+  required: @ReceiverDependentMutable NavigableSet<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1759,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<K extends @Immutable Object>
+  method return type: @Mutable NavigableSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1769,31] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable SynchronizedNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1769,31] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1769,45] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  required: @ReceiverDependentMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1771,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+  method return type: @Mutable NavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1862,33] [[immutability, pico, piconoinit, allcheckers]:illegal.field.write] Cannot write field via receiver: @ReceiverDependentMutable SynchronizedNavigableMap<K extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1862,33] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<K extends @Immutable Object>
+  method return type: @Mutable NavigableSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1862,60] [[immutability, pico, piconoinit, allcheckers]:assignment.type.incompatible] incompatible types in assignment.
+  found   : @Mutable NavigableSet<K extends @Immutable Object>
+  required: @ReceiverDependentMutable NavigableSet<K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1864,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable NavigableSet<K extends @Immutable Object>
+  method return type: @Mutable NavigableSet<@org.checkerframework.checker.nullness.qual.KeyFor({"this"}) K extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1935,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Object" to "@Mutable Entry<K [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[1990,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@ReceiverDependentMutable Collection<E [ extends @Mutable Object super @PICOBottom NullType ]>" to "@Mutable Queue<E [ extends @Mutable Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2034,33] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter E of SynchronizedDeque.
+  found   : E extends @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2193,13] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@PolyMutable Object" to "@Mutable Table<R [ extends @Immutable Object super @PICOBottom NullType ], C [ extends @Immutable Object super @PICOBottom NullType ], V [ extends @Readonly Object super @PICOBottom NullType ]>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2193,13] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Table<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+  method return type: @PolyMutable Table<R extends @Immutable Object, C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2279,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Synchronized.map.
+  found   : @ReceiverDependentMutable Map<C extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2286,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter map of Synchronized.map.
+  found   : @ReceiverDependentMutable Map<R extends @Immutable Object, V extends @Readonly Object>
+  required: @Mutable Map<R extends @Immutable Object, V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2314,25] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Collection<V extends @Readonly Object>
+  method return type: @PolyMutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2314,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter collection of Synchronized.collection.
+  found   : @PolyMutable Collection<V extends @Readonly Object>
+  required: @Mutable Collection<V extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2321,18] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @PolyMutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2323,33] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformValues.
+  found   : @PolyMutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Map<R extends @Immutable Object, @Mutable Map<C extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2337,18] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Mutable Map<C extends @Immutable Object, @Mutable Map<R extends @Immutable Object, V extends @Readonly Object>>
+  method return type: @PolyMutable Map<C extends @Immutable Object, @Mutable Map<R extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/Synchronized.java:[2339,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter fromMap of Maps.transformValues.
+  found   : @PolyMutable Map<C extends @Immutable Object, @Mutable Map<R extends @Immutable Object, V extends @Readonly Object>>
+  required: @Mutable Map<C extends @Immutable Object, @Mutable Map<R extends @Immutable Object, V extends @Readonly Object>>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/hash/LittleEndianByteArray.java:[181,28] [removal] AccessController in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ImmutableClassToInstanceMap.java:[51,73] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter delegate of ImmutableClassToInstanceMap constructor.
+  found   : @Immutable ImmutableMap<@Immutable Class<? extends @Readonly Object>, @Mutable Object>
+  required: @Immutable ImmutableMap<@Immutable Class<? extends @Readonly Object>, @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MoreCollectors.java:[50,18] [[immutability, pico, piconoinit, allcheckers]:type.arguments.not.inferred] Could not infer type arguments for Collector.of
+  unsatisfiable constraint: @Readonly Object <: @Mutable Object
+  use of T from Collector.of(ToOptionalState::new, ToOptionalState::add, ToOptionalState::combine, ToOptionalState::getOptional, Collector.Characteristics.UNORDERED) = @Readonly Object
+  From complementary bound.: use of T from Collector.of(ToOptionalState::new, ToOptionalState::add, ToOptionalState::combine, ToOptionalState::getOptional, Collector.Characteristics.UNORDERED) <= @Readonly Object
+  inference type: java.util.stream.Collector<T,A,R> <: @Mutable Collector<@Readonly Object, ? extends @Readonly Object, @Immutable Optional<@Readonly Object>>
+  inference type: java.util.stream.Collector<T,A,R> -> @Mutable Collector<@Readonly Object, ? extends @Readonly Object, @Immutable Optional<@Readonly Object>>
+  From: Constraint between method call type and target type for method call:Collector.of(ToOptionalState::new, ToOptionalState::add, ToOptionalState::combine, ToOptionalState::getOptional, Collector.Characteristics.UNORDERED)
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/MoreCollectors.java:[75,46] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter o of ToOptionalState.add.
+  found   : @Readonly Object
+  required: @Mutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultiset.java:[72,70] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter elements of Multisets.inferDistinctElements.
+  found   : @Readonly Iterable<capture#0345 extends E extends @Immutable Object>
+  required: @Mutable Iterable<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultiset.java:[78,10] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backingMap of AbstractMapBasedMultiset constructor.
+  found   : @Mutable HashMap<E extends @Immutable Object, @Mutable Count>
+  required: @ReceiverDependentMutable Map<E extends @Immutable Object, @Mutable Count>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultiset.java:[82,51] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backingMap of AbstractMapBasedMultiset constructor.
+  found   : @Mutable HashMap<E extends @Immutable Object, @Mutable Count>
+  required: @ReceiverDependentMutable Map<E extends @Immutable Object, @Mutable Count>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultiset.java:[92,32] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of Serialization.writeMultiset.
+  found   : @ReceiverDependentMutable HashMultiset<E extends @Immutable Object>
+  required: @Mutable Multiset<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultiset.java:[99,43] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter backingMap of AbstractMapBasedMultiset.setBackingMap.
+  found   : @Mutable HashMap<E extends @Immutable Object, @Mutable Count>
+  required: @ReceiverDependentMutable Map<E extends @Immutable Object, @Mutable Count>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/HashMultiset.java:[100,35] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter multiset of Serialization.populateMultiset.
+  found   : @ReceiverDependentMutable HashMultiset<E extends @Immutable Object>
+  required: @Mutable Multiset<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/reflect/Types.java:[372,19] [removal] AccessControlException in java.security has been deprecated and marked for removal
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/NaturalOrdering.java:[46,12] [[immutability, pico, piconoinit, allcheckers]:cast.unsafe] cast from "@Readonly Comparable<capture#0346 [ extends @Readonly Object super @PICOBottom NullType ]>" to "@Mutable Comparable<@Readonly Object>" cannot be statically verified
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[171,46] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to values() not allowed on the given receiver.
+  found   : @PICOLost ConcurrentMap<E extends @Immutable Object, @Mutable AtomicInteger>
+  required: @PICOLost Map<E extends @Immutable Object, @Mutable AtomicInteger>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[183,137] [[immutability, pico, piconoinit, allcheckers]:type.argument.type.incompatible] incompatible type argument for type parameter E of ConcurrentHashMultiset.
+  found   : E extends @PolyMutable Object
+  required: @Immutable Object
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[184,29] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @PolyMutable Object @Mutable []
+  method return type: @PolyMutable Object @ReceiverDependentMutable []
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[434,36] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of ConcurrentMap.putIfAbsent.
+  found   : E [ extends @Immutable Object super @Immutable NullType ]
+  required: E [ extends @Immutable Object super @PICOBottom NullType ]
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[446,39] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of ConcurrentMap.putIfAbsent.
+  found   : E [ extends @Immutable Object super @Immutable NullType ]
+  required: E [ extends @Immutable Object super @PICOBottom NullType ]
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[447,34] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter arg0 of ConcurrentMap.replace.
+  found   : E [ extends @Immutable Object super @Immutable NullType ]
+  required: E [ extends @Immutable Object super @PICOBottom NullType ]
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[471,15] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @ReceiverDependentMutable Set<E extends @Immutable Object>
+  method return type: @Mutable Set<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[486,57] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter collection of Collections2.safeRemove.
+  found   : @ReceiverDependentMutable Set<E extends @Immutable Object>
+  required: @Mutable Collection<? extends @Readonly Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[539,47] [[immutability, pico, piconoinit, allcheckers]:return.type.incompatible] incompatible types in return.
+  type of expression: @Immutable Entry<E extends @Immutable Object>
+  method return type: @Mutable Entry<E extends @Immutable Object>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[612,75] [[immutability, pico, piconoinit, allcheckers]:method.invocation.invalid] call to size() not allowed on the given receiver.
+  found   : @Mutable ConcurrentHashMultiset<E extends @Immutable Object>.@Readonly EntrySet
+  required: @Mutable AbstractMultiset<E extends @Immutable Object>.@PICOLost EntrySet
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/ConcurrentHashMultiset.java:[638,50] [[immutability, pico, piconoinit, allcheckers]:argument.type.incompatible] incompatible argument for parameter instance of FieldSetter.set.
+  found   : @ReceiverDependentMutable ConcurrentHashMultiset<E extends @Immutable Object>
+  required: @Mutable ConcurrentHashMultiset</*RAW*/>
+[WARNING] /Users/aosenxiong/waterloo/eisop/guava/guava/src/com/google/common/collect/CollectSpliterators.java:[61,38] [[immutability, pico, piconoinit, allcheckers]:static.receiverdependentmutable.forbidden] [@ReceiverDependentMutable] is forbidden in static context
+[INFO] 2285 warnings 
+[INFO] -------------------------------------------------------------
+[INFO] -------------------------------------------------------------
+[ERROR] COMPILATION ERROR : 
+[INFO] -------------------------------------------------------------
+[ERROR] error: Wildcard /*INFERENCE FAILED for:*/ ? extends @Mutable Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+[ERROR] error: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+[ERROR] error: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+[ERROR] error: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+[INFO] 4 errors 
+[INFO] -------------------------------------------------------------
+[INFO] ------------------------------------------------------------------------
+[INFO] BUILD FAILURE
+[INFO] ------------------------------------------------------------------------
+[INFO] Total time:  01:05 min
+[INFO] Finished at: 2025-10-30T16:08:34-04:00
+[INFO] ------------------------------------------------------------------------
+[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (main-compile) on project guava: Compilation failure: Compilation failure: 
+[ERROR] error: Wildcard /*INFERENCE FAILED for:*/ ? extends @Mutable Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+[ERROR] error: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+[ERROR] error: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+[ERROR] error: Wildcard /*INFERENCE FAILED for:*/ ? extends @Readonly Object is not a type argument of @Mutable ListenableFuture</*RAW*/>
+[ERROR] -> [Help 1]
+[ERROR] 
+[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
+[ERROR] Re-run Maven using the -X switch to enable full debug logging.
+[ERROR] 
+[ERROR] For more information about the errors and possible solutions, please read the following articles:
+[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
diff --git a/typecheck.sh b/typecheck.sh
index 8b51b72f386b..8e7b08f65f36 100755
--- a/typecheck.sh
+++ b/typecheck.sh
@@ -18,7 +18,7 @@ fi
 
 # This also builds annotation-tools.
 # Run assembleForJavac because it does not build the javadoc, so it is faster than assemble.
-(cd "${CHECKERFRAMEWORK}" && ./gradlew assembleForJavac --console=plain -Dorg.gradle.internal.http.socketTimeout=60000 -Dorg.gradle.internal.http.connectionTimeout=60000 )
+#(cd "${CHECKERFRAMEWORK}" && ./gradlew assembleForJavac --console=plain -Dorg.gradle.internal.http.socketTimeout=60000 -Dorg.gradle.internal.http.connectionTimeout=60000 )
 
 # As of 7/27/2019, there are only annotations for:
 #  * index
@@ -42,6 +42,10 @@ elif [[ "$1" == "signature" ]]; then
   (cd guava && mvn -B compile -P checkerframework-local -Dcheckerframework.checkers=org.checkerframework.checker.signature.SignatureChecker)
 elif [[ "$1" == "signedness" ]]; then
   (cd guava && mvn -B compile -P checkerframework-local -Dcheckerframework.checkers=org.checkerframework.checker.signedness.SignednessChecker)
+elif [[ "$1" == "pico" ]]; then
+#    (cd guava && mvn -B compile -P checkerframework-local -Dcheckerframework.checkers=org.checkerframework.checker.pico.PICOChecker -Dcheckerframework.extraargs="-AonlyDefs=^com\.google\.common\.collect" -Dcheckerframework.extraargs="-AonlyAnnotatedFor")
+ (cd guava && mvn -B clean compile -P checkerframework-local -Dcheckerframework.checkers=org.checkerframework.checker.pico.PICOChecker -Dcheckerframework.extraargs="-AassumeInitialized")
+#  (cd guava && mvn -B compile -P checkerframework-local -Dcheckerframework.checkers=org.checkerframework.checker.pico.PICOChecker -Dcheckerframework.extraargs="-AonlyDefs=^com\.google\.common\.collect" -Dcheckerframework.extraargs="-AassumeInitialized")
 elif [[ "$1" == "nothing" ]]; then
   true
 else