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[jetty-dev] JDK 17 Early Access build 28 & JDK 18 build 3 are available
  • From: Rory O'Donnell <rory.odonnell@xxxxxxxxxx>
  • Date: Fri, 25 Jun 2021 09:20:19 +0100
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Hi Simone,

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: 


OpenJDK 17 Early Access build 28 is available at
  • These early-access , open-source builds are provided under the
  • Release Notes are available at 
  • 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 
  • These early-access , open-source builds are provided under the
  • 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
Other Topics of Interest: 

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

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