JEP proposed to target JDK 19: 427: Pattern Matching for switch (Third Preview)

[mark.reinhold at oracle.com]

The following JEP is proposed to target JDK 19:

  427: Pattern Matching for switch (Third Preview)
       https://openjdk.java.net/jeps/427

  Summary: Enhance the Java programming language with pattern matching
  for switch expressions and statements. Extending pattern matching to
  switch allows an expression to be tested against a number of patterns,
  each with a specific action, so that complex data-oriented queries can
  be expressed concisely and safely. 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 Thursday, 5 May, 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 19.

- Mark


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