RFR: 8340393: Open source closed choice tests #2

[Alexander Zvegintsev]

few manual tests to open source
Tested on all platforms, all looks good.

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Commit messages:
 - initial

Changes: https://git.openjdk.org/jdk/pull/21081/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=21081&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8340393
  Stats: 322 lines in 4 files changed: 322 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/21081.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21081/head:pull/21081

PR: https://git.openjdk.org/jdk/pull/21081