Java 15 / JDK 15: General Availability

[mark.reinhold at oracle.com]

JDK 15, the reference implementation of Java 15, is now Generally
Available.  We’ve identified no P1 bugs since we promoted build 36
over five weeks ago so that’s the official GA release, ready for
production use.

GPL-licensed OpenJDK builds from Oracle are available here:

  https://jdk.java.net/15

Builds from other implementors will no doubt be available soon.

This release includes fourteen features [1]:

  339: Edwards-Curve Digital Signature Algorithm (EdDSA)
  360: Sealed Classes (Preview)
  371: Hidden Classes
  372: Remove the Nashorn JavaScript Engine
  373: Reimplement the Legacy DatagramSocket API
  374: Disable and Deprecate Biased Locking
  375: Pattern Matching for instanceof (Second Preview)
  377: ZGC: A Scalable Low-Latency Garbage Collector
  378: Text Blocks
  379: Shenandoah: A Low-Pause-Time Garbage Collector
  381: Remove the Solaris and SPARC Ports
  383: Foreign-Memory Access API (Second Incubator)
  384: Records (Second Preview)
  385: Deprecate RMI Activation for Removal

along with, as usual, hundreds of smaller enhancements and thousands
of bug fixes.

Thanks to everyone who contributed to JDK 15, whether by creating
features or enhancements, fixing bugs, or downloading and testing
the early-access builds!

- Mark


[1] https://openjdk.java.net/projects/jdk/15