RFR: 8277090 : jsr166 refresh for jdk19 [v2]

Tue May 3 10:59:24 UTC 2022

On Mon, 2 May 2022 13:33:33 GMT, Doug Lea <dl at openjdk.org> wrote:

>> This is the jsr166 refresh for jdk19. See https://bugs.openjdk.java.net/browse/JDK-8285450 and https://bugs.openjdk.java.net/browse/JDK-8277090
>
> Doug Lea has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Address review comments

I've been testing the ForkJoinPool update for some time and the performance improvements for the FIFO/async-mode for very impressive.

One behavior change from JDK 17/18 is that TLs are now preserved by the threads in the common pool for the no-SM case. This may be observed as "memory leak" in some environments but a help in others.

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Marked as reviewed by alanb (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/8490