[logback-dev] JDK 13 - Early Access build 20 is available

Rory O'Donnell rory.odonnell at oracle.com
Fri May 10 10:06:41 CEST 2019

Hi Ceki,

      *OpenJDK builds *- JDK 13 - Early Access build 20 is available at

  * These early-access , open-source builds are provided under the
      o GNU General Public License, version 2, with the Classpath
        Exception <http://openjdk.java.net/legal/gplv2+ce.html>.
  * Changes in this build
  * Release notes [1]

      *Significant changes since the last availability email*

  * build 20
      o Removal of T-Systems Deutsche Telekom Root CA 2 certificate
      o Add new FileSystems.newFileSystem methods (JDK-8218875)
      o Enhance auto vectorization for x86 (JDK-8222074)
      o Remove CollectorPolicy and its subclasses (JDK-8198505)
      o Drop support for pre JDK 1.4 SocketImpl implementations
  * build 19
      o add support for generating method handles from a variable symbol
      o mark new VM option AllowRedefinitionToAddOrDeleteMethods as
        deprecated (JDK-8222934)
  * build 18
      o Improve String::equals warmup characteristics (JDK-8215017)
      o [Containers] Improve systemd slice memory limit support

        Bug fixes for issues reported by Open Source Projects

  * build 20
      o assert(Compile::current()->live_nodes() <
        Compile::current()->max_node_limit()) failed: Live Node limit
        exceeded limit (JDK-8219520)
      o C2: MemNode::can_see_stored_value() ignores casts which carry
        control dependency (JDK-8219902)
      o New fix of the deadlock in sun.security.ssl.SSLSocketImpl

      JEP updates since last email

  * JEP 350: Dynamic CDS Archives <http://openjdk.java.net/jeps/350> 
    istargeted for JDK 13.
  * JEP 351: ZGC: Uncommit Unused Memory
    <http://openjdk.java.net/jeps/351> istargeted for JDK 13
  * JEP 353: Reimplement the Legacy Socket API
    <http://openjdk.java.net/jeps/353> moved to Candidate
  * JEP 354: Switch Expressions <http://openjdk.java.net/jeps/354> moved
    to Candidate.

      OpenJDK Committers’ Workshop, 1–2 August 2019 [2]


[1] http://jdk.java.net/13/release-notes
[2] https://mail.openjdk.java.net/pipermail/announce/2019-April/000269.html

Rgds, Rory O'Donnell
Quality Engineering Manager
Oracle EMEA, Dublin, Ireland

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