git: openjdk/jdk: 8297495: j.u.concurrent updates for JDK 20

[Alan Bateman]

Changeset: 19d84988
Author:    Alan Bateman <alanb at openjdk.org>
Date:      2022-12-05 15:20:16 +0000
URL:       https://git.openjdk.org/jdk/commit/19d849884bd7a9718a5050b9709657f231a1ddbc

8297495: j.u.concurrent updates for JDK 20

Reviewed-by: jpai

! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
! src/java.base/share/classes/java/util/concurrent/ForkJoinWorkerThread.java
+ test/jdk/java/util/concurrent/tck/ForkJoinPool20Test.java
! test/jdk/java/util/concurrent/tck/JSR166TestCase.java