JEP proposed to target JDK 16: 390: Warnings for Value-Based Classes

mark.reinhold at oracle.com mark.reinhold at oracle.com
Mon Nov 30 22:42:27 UTC 2020


The following JEP is proposed to target JDK 16:

  390: Warnings for Value-Based Classes
       https://openjdk.java.net/jeps/390

  Summary: Designate the primitive wrapper classes as value-based and
  deprecate their constructors for removal, prompting new deprecation
  warnings.  Provide warnings about improper attempts to synchronize on
  instances of any value-based classes in the Java Platform.

Feedback on this proposal from JDK Project Committers and Reviewers [1]
is more than welcome, as are reasoned objections.  If no such objections
are raised by 23:59 UTC on Monday, 7 December, or if they’re raised and
then satisfactorily answered, then per the JEP 2.0 process proposal [2]
I’ll target this JEP to JDK 16.

- Mark


[1] https://openjdk.java.net/census#jdk
[2] https://cr.openjdk.java.net/~mr/jep/jep-2.0-02.html


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