RFR: 8340393: Open source closed choice tests #2 [v3]

[Alexander Zvegintsev]

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

Alexander Zvegintsev has updated the pull request incrementally with one additional commit since the last revision:

  instructions update

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Changes:
  - all: https://git.openjdk.org/jdk/pull/21081/files
  - new: https://git.openjdk.org/jdk/pull/21081/files/29851a72..964075ea

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21081&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21081&range=01-02

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 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