JDK 15 is in Rampdown Phase One

deepak.n.damodaran at oracle.com deepak.n.damodaran at oracle.com
Tue Jun 23 08:15:47 UTC 2020

Hi All,

*Per the JDK 15 schedule , we are in Rampdown Phase One* *[1] *

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

  * Schedule for JDK 15
      o *2020/06/11 Rampdown Phase One*
      o 2020/07/16 Rampdown Phase Two
      o 2020/08/06 Initial Release Candidate
      o 2020/08/20 Final Release Candidate
      o 2020/09/15 General Availability

  * Features included in JDK 15:
      o JEP 339: Edwards-Curve Digital Signature Algorithm (EdDSA)
      o JEP 360: Sealed Classes (Preview) <http://openjdk.java.net/jeps/360>
      o JEP 371: Hidden Classes <http://openjdk.java.net/jeps/371>
      o JEP 372: Remove the Nashorn JavaScript Engine
      o JEP 373: Reimplement the Legacy DatagramSocket API
      o JEP 374: Disable and Deprecate Biased Locking
      o JEP 375: Pattern Matching for instanceof (Second Preview)
      o JEP 377: ZGC: A Scalable Low-Latency Garbage Collector
      o JEP 378: Text Blocks <http://openjdk.java.net/jeps/378>
      o JEP 379: Shenandoah: A Low-Pause-Time Garbage Collector
      o JEP 381: Remove the Solaris and SPARC Ports
      o JEP 383: Foreign-Memory Access API (Second Incubator)
      o JEP 384: Records (Second Preview)
      o JEP 385: Deprecate RMI Activation for Removal

*JDK 15 **Early Access build 28 **is available**at : - jdk.java.net/15/*

These early-access, open-source builds are provided under the GNU 
General Public License, version 2, with the Classpath Exception**Release 

  * Release notes
      o http://jdk.java.net/15/release-notes
  * Recent fixes that might be of interest
      o Build 27
          + JDK-8233215: jpackage doesn't allow enough flexibility for
            file type binding
          + JDK-8244582: Remove terminally deprecated Solaris-specific
            SO_FLOW_SLA socket option
          + JDK-8245068: Implement Deprecation of RMI Activation
          + JDK-8246770: Atomic::add() with 64 bit value fails to link
            on 32-bit platforms
              # Reported by JaCoCo
      o Build 26
          + JDK-8240871: SSLEngine handshake status immediately after
            the handshake can be NOT_HANDSHAKING rather than FINISHED
            with TLSv1.3
              # Reported by Apache Tomcat
      o Build 25
          + JDK-8206925: Support the certificate_authorities extension
          + JDK-8239480: Support for CLDR version 37
          + JDK-8243925: Toolkit#getScreenInsets() returns wrong value
            on HiDPI screens (Windows)

*JDK 16 Early Access build 2 ****is available**at : - jdk.java.net/16/*

These early-access, open-source builds are provided under the GNU 
General Public License, version 2, with the Classpath Exception.*

*_Survey on _**_jinfo, jmap, jstack serviceability tools in JDK:_ *

  * Oracle is considering deprecation and (eventual) removal of 3 JDK
    tools - jinfo, jmap, jstack.
  * The Survey Link
    <https://www.questionpro.com/a/TakeSurvey?tt=n%2BDcx/aY3aA%3D> will
    remain open through July 15 2020.


[1] https://mail.openjdk.java.net/pipermail/jdk-dev/2020-June/004401.html

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