[jdk21u-dev] RFR: 8339842: Open source several AWT focus tests - series 2

[Goetz Lindenmaier]

I backport this for parity with 21.0.8-oracle

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Commit messages:
 - Backport 4b7906375b4bd11a480665110561180825c2dd9c

Changes: https://git.openjdk.org/jdk21u-dev/pull/1478/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1478&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8339842
  Stats: 701 lines in 4 files changed: 701 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1478.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1478/head:pull/1478

PR: https://git.openjdk.org/jdk21u-dev/pull/1478