[jdk21u-dev] RFR: 8340173: Open source some Component/Panel/EventQueue tests - Set2

[Goetz Lindenmaier]

I backport this for parity with 21.0.8-oracle.

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Commit messages:
 - Backport 97ee8bbda2c7d7f76866690a34a5021fade2f438

Changes: https://git.openjdk.org/jdk21u-dev/pull/1489/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1489&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340173
  Stats: 764 lines in 5 files changed: 764 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1489.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1489/head:pull/1489

PR: https://git.openjdk.org/jdk21u-dev/pull/1489