JEP proposed to drop from JDK 21: 404: Generational Shenandoah (Experimental)

[Mark Reinhold]

Roman Kennke, the owner of this JEP, has proposed to drop it from JDK 21:

  404: Generational Shenandoah (Experimental)
       https://openjdk.org/jeps/404

His rationale [1]:

  The Shenandoah team has decided to skip JDK 21 and take the time to
  deliver the best Generational Shenandoah that we can.

Related, from Kelvin Nilsen in the PR [2]:

  We would like to thank everyone who has taken time to review and
  provide feedback on our pull request.  Given the risks identified
  during the review process and the lack of time available to perform
  the thorough review that such a large contribution of code requires,
  we have decided to close this PR at the current time.  We will seek
  to target JDK 22.

Feedback on this proposal from JDK Project Committers and Reviewers [3]
is more than welcome, as are reasoned objections.  If no such objections
are raised by 23:59 UTC on Wednesday, 14 June, or if they’re raised and
then satisfactorily answered, then per the JEP 2.0 process proposal [4]
I’ll drop this JEP from JDK 21.

- Mark


[1] https://bugs.openjdk.org/browse/JDK-8260865?focusedCommentId=14587756&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-14587756
[2] https://github.com/openjdk/jdk/pull/14185#issuecomment-1581509386
[3] https://openjdk.java.net/census#jdk
[4] https://cr.openjdk.java.net/~mr/jep/jep-2.0-02.html