[jdk21u-dev] RFR: 8353000: Open source several swing tests batch2

[Satyen Subramaniam]

Backporting JDK-8353000: Open source several swing tests batch2. Adds three swing tests to detect regressions. Ran GHA Sanity Checks, local Tier 1 and 2, and new tests directly. Patch is clean. Backporting for parity with Oracle.

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Commit messages:
 - Backport 4e3f1848eeb28a78d71c6ffbda31279cee3fc5ea

Changes: https://git.openjdk.org/jdk21u-dev/pull/2112/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2112&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8353000
  Stats: 484 lines in 6 files changed: 484 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2112.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2112/head:pull/2112

PR: https://git.openjdk.org/jdk21u-dev/pull/2112