Triage Java emulation up to 23

[zbynek]

These methods and fields are currently not listed in any issue:

java.io.PrintStream#charset()\
java.lang.Character#isEmoji(int)\
java.lang.Character#isEmojiPresentation(int)\
java.lang.Character#isEmojiModifier(int)\
java.lang.Character#isEmojiModifierBase(int)\
java.lang.Character#isEmojiComponent(int)\
java.lang.Character#isExtendedPictographic(int)\
java.lang.Double#PRECISION\
java.lang.Float#float16ToFloat(short)\
java.lang.Float#floatToFloat16(float)\
java.lang.Float#PRECISION\
java.lang.Integer#expand(int, int)\
java.lang.Integer#compress(int, int)\
java.lang.Long#expand(long, long)\
java.lang.Long#compress(long, long)\
java.lang.Math#unsignedMultiplyHigh(long, long)\
java.lang.Math#clamp(float, float, float)\
java.lang.Math#clamp(long, long, long)\
java.lang.Math#clamp(double, double, double)\
java.lang.Math#clamp(long, int, int)\
java.lang.Math#ceilDiv(long, long)\
java.lang.Math#ceilDiv(long, int)\
java.lang.Math#ceilDiv(int, int)\
java.lang.Math#ceilMod(long, long)\
java.lang.Math#ceilMod(long, int)\
java.lang.Math#ceilMod(int, int)\
java.lang.Math#divideExact(int, int)\
java.lang.Math#divideExact(long, long)\
java.lang.Math#floorDivExact(long, long)\
java.lang.Math#floorDivExact(int, int)\
java.lang.Math#ceilDivExact(long, long)\
java.lang.Math#ceilDivExact(int, int)\
java.lang.Math#TAU\
java.lang.StrictMath#unsignedMultiplyHigh(long, long)\
java.lang.StrictMath#clamp(float, float, float)\
java.lang.StrictMath#clamp(double, double, double)\
java.lang.StrictMath#clamp(long, long, long)\
java.lang.StrictMath#clamp(long, int, int)\
java.lang.StrictMath#ceilDiv(long, long)\
java.lang.StrictMath#ceilDiv(long, int)\
java.lang.StrictMath#ceilDiv(int, int)\
java.lang.StrictMath#ceilMod(long, long)\
java.lang.StrictMath#ceilMod(long, int)\
java.lang.StrictMath#ceilMod(int, int)\
java.lang.StrictMath#divideExact(int, int)\
java.lang.StrictMath#divideExact(long, long)\
java.lang.StrictMath#floorDivExact(int, int)\
java.lang.StrictMath#floorDivExact(long, long)\
java.lang.StrictMath#ceilDivExact(long, long)\
java.lang.StrictMath#ceilDivExact(int, int)\
java.lang.StrictMath#TAU\
java.lang.String#indexOf(String, int, int)\
java.lang.String#indexOf(int, int, int)\
java.lang.String#splitWithDelimiters(String, int)\
java.math.BigDecimal#TWO\
java.math.BigInteger#parallelMultiply(BigInteger)\
java.nio.charset.Charset#forName(String, Charset)\
java.util.Collections#shuffle(List, RandomGenerator)\
java.util.Collections#unmodifiableSequencedCollection(SequencedCollection)\
java.util.Collections#unmodifiableSequencedSet(SequencedSet)\
java.util.Collections#unmodifiableSequencedMap(SequencedMap)\
java.util.Collections#newSequencedSetFromMap(SequencedMap)\
java.util.HashMap#newHashMap(int)\
java.util.HashSet#newHashSet(int)\
java.util.LinkedHashMap#newLinkedHashMap(int)\
java.util.LinkedHashSet#newLinkedHashSet(int)\
java.util.Locale#of(String, String)\
java.util.Locale#of(String, String, String)\
java.util.Locale#of(String)\
java.util.Locale#availableLocales()\
java.util.Locale#caseFoldLanguageTag(String)\
java.util.Objects#toIdentityString(Object)\
java.util.Random#from(RandomGenerator)\
java.util.concurrent.Future#state()\
java.util.concurrent.Future#resultNow()\
java.util.concurrent.Future#exceptionNow()\
java.util.stream.Stream#gather(Gatherer) (23 preview)