[jdk17u-dev] RFR: 8305942: Open source several AWT Focus related tests

[Andrew Lu]

I backport this for parity with 17.0.11-oracle.

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Commit messages:
 - Backport 8346ae2bc1152f13bc77c643252d84e2043ffe0b

Changes: https://git.openjdk.org/jdk17u-dev/pull/2354/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2354&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8305942
  Stats: 831 lines in 6 files changed: 831 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2354.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2354/head:pull/2354

PR: https://git.openjdk.org/jdk17u-dev/pull/2354