[jdk17u-dev] RFR: 8316017: Refactor timeout handler in PassFailJFrame

[Andrew Lu]

I backport this for parity with 17.0.11-oracle.

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

Commit messages:
 - Backport 3abd772672a4dfd984459283235f3b1d8fb28a49

Changes: https://git.openjdk.org/jdk17u-dev/pull/2414/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2414&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8316017
  Stats: 149 lines in 1 file changed: 92 ins; 33 del; 24 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2414.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2414/head:pull/2414

PR: https://git.openjdk.org/jdk17u-dev/pull/2414