From f907f8ab8504a1c03265731868e360e255047be2 Mon Sep 17 00:00:00 2001
From: Tim te Beek <tim@moderne.io>
Date: Mon, 10 Aug 2026 14:26:00 +0200
Subject: [PATCH] Derive SDKMAN test versions from the candidate list

The nightly SDKMAN! candidates refresh rolled 17.0.19 to 17.0.20 and
11.0.31 to 11.0.32, which broke `updateVersionExact` and
`updateDistributionOnly` on every open pull request.

Unlike #1183 these two tests pin a patch version on their input as well
as their expectation, so asserting on the version basis alone is not
enough; the recipe finds no candidate to upgrade to and makes no change
at all. Read a currently available patch version from the same candidate
list the recipe resolves against instead.
---
 .../java/migrate/UpdateSdkManTest.java        | 44 ++++++++++++++-----
 1 file changed, 34 insertions(+), 10 deletions(-)

diff --git a/src/test/java/org/openrewrite/java/migrate/UpdateSdkManTest.java b/src/test/java/org/openrewrite/java/migrate/UpdateSdkManTest.java
index ef28cd3bd7..b188b49aeb 100644
--- a/src/test/java/org/openrewrite/java/migrate/UpdateSdkManTest.java
+++ b/src/test/java/org/openrewrite/java/migrate/UpdateSdkManTest.java
@@ -18,26 +18,53 @@
 import org.junit.jupiter.api.Test;
 import org.openrewrite.DocumentExample;
 import org.openrewrite.InMemoryExecutionContext;
+import org.openrewrite.semver.LatestRelease;
 import org.openrewrite.test.RewriteTest;
 
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.UncheckedIOException;
+import java.nio.charset.StandardCharsets;
+import java.util.regex.Pattern;
+
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.openrewrite.test.SourceSpecs.text;
 
 
 class UpdateSdkManTest implements RewriteTest {
 
+    /**
+     * The nightly SDKMAN! candidates refresh drops patch versions as new ones appear, so tests that need an exact
+     * version read a currently available one from the same candidate list the recipe resolves against.
+     */
+    private static String latestPatchVersion(String majorVersion, String distribution) {
+        Pattern pattern = Pattern.compile("^" + majorVersion + "\\.\\d+\\.\\d+-" + distribution + "$");
+        try (InputStream candidates = UpdateSdkMan.class.getResourceAsStream("/sdkman-java.csv");
+             BufferedReader reader = new BufferedReader(new InputStreamReader(candidates, StandardCharsets.UTF_8))) {
+            return reader.lines()
+              .filter(candidate -> pattern.matcher(candidate).matches())
+              .max(new LatestRelease("-" + distribution))
+              .map(candidate -> candidate.substring(0, candidate.length() - distribution.length() - 1))
+              .orElseThrow(() -> new IllegalStateException(
+                String.format("No %s candidate for Java %s in sdkman-java.csv", distribution, majorVersion)));
+        } catch (IOException e) {
+            throw new UncheckedIOException(e);
+        }
+    }
+
     @DocumentExample
     @Test
     void updateVersionExact() {
+        String version = latestPatchVersion("17", "tem");
         rewriteRun(
-          spec -> spec.recipe(new UpdateSdkMan("17.0.19", null)),
+          spec -> spec.recipe(new UpdateSdkMan(version, null)),
           text(
             """
               java=11.1.2-tem
               """,
-            """
-              java=17.0.19-tem
-              """,
+            "java=" + version + "-tem\n",
             spec -> spec.path(".sdkmanrc")
           )
         );
@@ -59,15 +86,12 @@ void updateVersionUsingMajorOnly() {
 
     @Test
     void updateDistributionOnly() {
+        String version = latestPatchVersion("11", "amzn");
         rewriteRun(
           spec -> spec.recipe(new UpdateSdkMan(null, "amzn")),
           text(
-            """
-              java=11.0.31-zulu
-              """,
-            """
-              java=11.0.31-amzn
-              """,
+            "java=" + version + "-zulu\n",
+            "java=" + version + "-amzn\n",
             spec -> spec.path(".sdkmanrc")
           )
         );