RFR: 8365065: cancelled ForkJoinPool tasks no longer throw CancellationException [v3]

[Viktor Klang]

> ForkJoinTask::get and ForkJoinTask::get(timeout, timeunit) now (again) throws CancellationException when cancelled.

Viktor Klang has updated the pull request incrementally with one additional commit since the last revision:

  Addressing review feedback

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Changes:
  - all: https://git.openjdk.org/jdk/pull/27430/files
  - new: https://git.openjdk.org/jdk/pull/27430/files/0a8643ae..e6177dd6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=27430&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=27430&range=01-02

  Stats: 6 lines in 1 file changed: 0 ins; 5 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/27430.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27430/head:pull/27430

PR: https://git.openjdk.org/jdk/pull/27430