From Java 21 to Java 25

Java 25 New Features from Java 21 Java Language Module Import DeclarationsFlexible Constructor BodiesCompact Source Files and Instance Main MethodsPattern MatchingCore Library Stream GatherersClass-File APIIntegrity by DefaultMulti-threading Scoped ValuesStructured ConcurrencySynchronize Virtual Threads without PinningStable ValuesJVM Garbage CollectorsCompact Object HeadersProject LeydenTools Launch Multi-File Source-Code ProgramsAnnotations Processing