[jdk21u-dev] RFR: 8340228: Open source couple more miscellaneous AWT tests

[Goetz Lindenmaier]

I backport this for parity with 21.0.8-oracle

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Commit messages:
 - Backport f7bc9ba552cf913eef2131b964c48f1b4b55131c

Changes: https://git.openjdk.org/jdk21u-dev/pull/1542/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1542&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340228
  Stats: 321 lines in 3 files changed: 321 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1542.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1542/head:pull/1542

PR: https://git.openjdk.org/jdk21u-dev/pull/1542