JDK 17 Early Access build 28 & JDK 18 build 3 are available

[Deepak Damodaran]

Per the JDK 17 schedule , we are in Rampdown Phase One.

Please advise if you find any issues while testing the latest Early Access builds.


The overall feature set is frozen. No further JEPs will be targeted to this release.

  *   Features integrated in JDK 17:

     *   JEP 306: Restore Always-Strict Floating-Point Semantics<https://openjdk.java.net/jeps/306>
     *   JEP 356: Enhanced Pseudo-Random Number Generators<https://openjdk.java.net/jeps/356>
     *   JEP 382: New macOS Rendering Pipeline<https://openjdk.java.net/jeps/382>
     *   JEP 391: macOS/AArch64 Port<https://openjdk.java.net/jeps/391>
     *   JEP 398: Deprecate the Applet API for Removal<https://openjdk.java.net/jeps/398>
     *   JEP 403: Strongly Encapsulate JDK Internals<https://openjdk.java.net/jeps/403>
     *   JEP 406: Pattern Matching for switch (Preview)<https://openjdk.java.net/jeps/406>
     *   JEP 407: Remove RMI Activation<https://openjdk.java.net/jeps/407>
     *   JEP 409: Sealed Classes<https://openjdk.java.net/jeps/409>
     *   JEP 410: Remove the Experimental AOT and JIT Compiler<https://openjdk.java.net/jeps/410>
     *   JEP 411: Deprecate the Security Manager for Removal<https://openjdk.java.net/jeps/411>
     *   JEP 412: Foreign Function & Memory API (Incubator)<https://openjdk.java.net/jeps/412>
     *   JEP 414: Vector API (Second Incubator)<https://openjdk.java.net/jeps/414>
     *   JEP 415: Context-Specific Deserialization Filters<https://openjdk.java.net/jeps/415>


OpenJDK 17 Early Access build 28 is available at https://jdk.java.net/17

  *   These early-access , open-source builds are provided under the
     *   GNU General Public License, version 2, with the Classpath Exception<https://openjdk.java.net/legal/gplv2+ce.html>
  *   Release Notes are available at https://jdk.java.net/17/release-notes
  *   Changes in build 28 that maybe of interest:
     *   JDK-8269028: [BACKOUT] JDK-8196415 Disable SHA-1 Signed JARs
     *   JDK-8268774: Residual logging output written to STDOUT, not STDERR [Reported by Apache Ant]
     *   JDK-8264843: Javac crashes with NullPointerException when finding unencoded XML in <pre> tag [Reported by Apache Lucene]

OpenJDK 18 Early Access build 3 is now available at https://jdk.java.net/18

  *   These early-access , open-source builds are provided under the
     *   GNU General Public License, version 2, with the Classpath Exception<https://openjdk.java.net/legal/gplv2+ce.html>
  *   Changes in recent builds that maybe of interest:
     *   JDK-8266791: Annotation property which is compiled as an array property but changed to a single element throws NPE [Reported by Byte Buddy]
  *   Coming in a future JDK 18 build
     *   Removal of Biased Locking in JDK 18  - Details<https://github.com/openjdk/jdk/pull/4522>
Other Topics of Interest:

  *   State of Loom: https://www.youtube.com/watch?v=KG24inClY2M
  *   State of Panama: https://www.youtube.com/watch?v=B8k9QGvPxC0
  *   What's a JEP: https://www.youtube.com/watch?v=l1VrmvyIEpM

Quality Report for June 2021 was published here [1].

  *   Thanks to everyone who contributed by creating features or enhancements, logging bugs, or downloading and testing the early-access builds.



Rgds, Deepak



[1] https://wiki.openjdk.java.net/display/quality/Quality+Outreach+Report+June+2021