To run each example use: java --enable-preview --source 16 <FileName.java>
- 338 - Vector API (Incubator)
- 347 - Enable C++14 Language Features
- 357 - Migrate from Mercurial to Git
- 369 - Migrate to GitHub
- 376 - ZGC: Concurrent Thread-Stack Processing
- 380 - Unix-Domain Socket Channels
- 386 - Alpine Linux Port
- 387 - Elastic Metaspace
- 388 - Windows/AArch64 Port
- 389 - Foreign Linker API (Incubator)
- 390 - Warnings for Value-Based Classes
- 392 - Packaging Tool
- 393 - Foreign-Memory Access API (Third Incubator)
- 394 - Pattern Matching for instanceof
- 395 - Records
- 396 - Strongly Encapsulate JDK Internals by Default
- 397 - Sealed Classes (Second Preview)
- Pattern Matching for
instanceof(standard) - Records
- now we can declare static class or a record in an inner class
- Warnings for Value-Based Classes
- starting the preparatives for Project Valhalla (can't wait for it to be fully implemented)
- warning the using value-based classes in synchronization and flag to force an error (1) or log (2)
- flag:
-XX:DiagnoseSyncOnValueBasedClasses=1|2
- flag:
- starting with primitive wrappers (but soon might be expanded)
- Foreign-Memory Access API (third incubator)
- change in the API
- Sealed Classes (second preview)
sealed,non-sealedandpermitsbecame contextual keywords (we can use it as var name or method name)
- Unix-Domain Socket Channels
- Elastic Metaspace - allow JVM to return unused memory to OS
- flag to customize:
-XX:MetaspaceReclaimPolicy=balanced|aggressive|none
- flag to customize:
- Packaging tool promoted to standard
- changing only on flag:
--bind-servicesto--jlink-options
- changing only on flag:
- Changed default flag for JDK internals:
- now it is
--illegal-access=deny
- now it is