8352678: Opensource few JMenuItem tests

[satyenme]

Backporting JDK-8352678: Opensource few JMenuItem tests and JDK-8357305: Compilation failure in javax/swing/JMenuItem/bug6197830.java (caused by first JBS issue). Renames a test file, and open sources 4 tests. Ran GHA Sanity Checks and new tests directly.

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Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8352678 needs maintainer approval
• JDK-8357305 needs maintainer approval

Issues

• JDK-8352678: Opensource few JMenuItem tests (Bug - P4)
• JDK-8357305: Compilation failure in javax/swing/JMenuItem/bug6197830.java (Bug - P3)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk21u-dev.git pull/2332/head:pull/2332
$ git checkout pull/2332

Update a local copy of the PR:
$ git checkout pull/2332
$ git pull https://git.openjdk.org/jdk21u-dev.git pull/2332/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 2332

View PR using the GUI difftool:
$ git pr show -t 2332

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk21u-dev/pull/2332.diff

Using Webrev

Link to Webrev Comment

[satyenme]

/issue add 8357305

[bridgekeeper]

👋 Welcome back ssubramaniam! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[openjdk]

@satyenme
Adding additional issue to issue list: 8357305: Compilation failure in javax/swing/JMenuItem/bug6197830.java.

[mlbridge]

Webrevs

• 00: Full (05eef935)