[jdk21u-dev] RFR: 8340077: Open source few Checkbox tests - Set2

[Goetz Lindenmaier]

I backport this for parity with 21.0.08-oracle.

Resolved ProblemList, probably clean.

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Commit messages:
 - Backport 6f459aff453679ee89fd80bb325737d76288e4d2

Changes: https://git.openjdk.org/jdk21u-dev/pull/1635/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1635&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340077
  Stats: 404 lines in 5 files changed: 404 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1635.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1635/head:pull/1635

PR: https://git.openjdk.org/jdk21u-dev/pull/1635