RFR: 8269428: java/util/concurrent/ConcurrentHashMap/ToArray.java timed out [v2]

[Viktor Klang]

> As an intermediate fix to the test, switching to explicit usage of an ExecutorService seems to do the trick to make this test reliably pass.
> 
> With that said, this test (CHM::ToArray.java) seems to trigger an issue in ForkJoinPool, so that would need to be fixed separately.
> 
> Tagging @DougLea as an FYI. :)

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

  Updating copyright year of CHM/ToArray.java

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/18023/files
  - new: https://git.openjdk.org/jdk/pull/18023/files/1426b837..a073256a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=18023&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=18023&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/18023.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/18023/head:pull/18023

PR: https://git.openjdk.org/jdk/pull/18023