[jdk21u-dev] RFR: 8339836: Open source several AWT Mouse tests - Batch 1

[Goetz Lindenmaier]

I backport this for parity with 21.0.8-oracle

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Commit messages:
 - Backport 57c859e4adfedc963b1f4b3bf066453ace41ee36

Changes: https://git.openjdk.org/jdk21u-dev/pull/1636/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1636&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8339836
  Stats: 581 lines in 5 files changed: 581 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1636.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1636/head:pull/1636

PR: https://git.openjdk.org/jdk21u-dev/pull/1636