[jdk21u-dev] RFR: 8341298: Open source more AWT window tests

[Goetz Lindenmaier]

I backport this for parity with 21.0.8-oracle

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Commit messages:
 - Backport db61458da840123925cb3ba079cfaf8277880320

Changes: https://git.openjdk.org/jdk21u-dev/pull/1527/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1527&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8341298
  Stats: 627 lines in 4 files changed: 627 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1527.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1527/head:pull/1527

PR: https://git.openjdk.org/jdk21u-dev/pull/1527