git: openjdk/jdk17u: master: 8274349: ForkJoinPool.commonPool() does not work with 1 CPU

[David Holmes]

Changeset: 328358a4
Author:    David Holmes <dholmes at openjdk.org>
Date:      2021-10-05 07:06:58 +0000
URL:       https://git.openjdk.java.net/jdk17u/commit/328358a4e57dc0e3fec4d518d444bd91269f198e

8274349: ForkJoinPool.commonPool() does not work with 1 CPU

Backport-of: 2e542e33b81a53652956bb5e9636e7f4af5540f7

! src/java.base/share/classes/java/util/concurrent/ForkJoinPool.java
+ test/jdk/java/util/concurrent/forkjoin/Uniprocessor.java
! test/jdk/java/util/concurrent/tck/ForkJoinPoolTest.java