[jdk11u-dev] RFR: 8269428: java/util/concurrent/ConcurrentHashMap/ToArray.java timed out

[Andrew Lu]

I backport this for parity with 11.0.25-oracle.

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Commit messages:
 - Backport 570ad67204a55dd4b45e04e5a91671fed2cc18d0

Changes: https://git.openjdk.org/jdk11u-dev/pull/2802/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2802&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8269428
  Stats: 60 lines in 1 file changed: 10 ins; 4 del; 46 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2802.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2802/head:pull/2802

PR: https://git.openjdk.org/jdk11u-dev/pull/2802