JEP proposed to target JDK 23: 455: Primitive Types in Patterns, instanceof, and switch (Preview)

Mark Reinhold mark.reinhold at oracle.com
Mon Jan 15 14:11:40 UTC 2024


The following JEP is proposed to target JDK 23:

  455: Primitive Types in Patterns, instanceof, and switch (Preview)
       https://openjdk.org/jeps/455

  Summary: Enhance pattern matching by allowing primitive type patterns
  in all pattern contexts, and extend instanceof and switch to work with
  all primitive types.  This is a preview language feature.

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, 22 January, 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 23.

- Mark


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


More information about the jdk-dev mailing list