RFR: 8341257: Open source few DND tests - Set1 [v2]

[Damon Nguyen]

On Wed, 9 Oct 2024 18:18:21 GMT, Phil Race <prr at openjdk.org> wrote:

>> I can make the `returnCode` var value set to `CODE_OK` by making it public/static and calling `DnDClipboardDeadlockTest.returnCode = DnDClipboardDeadlockTest.CODE_OK`, but the test won't exit. I can throw an exception instead, but it's odd since this is supposed to pass in this scenario. Still open to suggestions.
>
> Well, the frames aren't being disposed, so the VM isn't going to exit() on its own.
> You need to make sure that is done in both the parent and the exec'd chilld
> 
> I don't see an issue with calling System.exit(0) from the exec'ed child.
> ie so long as it is ONLY from the child process, not the test launched by jtreg.
> You'd need to do this if you wanted to signal any non-default condition.

@prrace Could you elaborate on what needs to be done in the parent and exec'd child? I'm not sure I quite understand. Do you want me to add `frame.dispose()` to both the parent and child processes?

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PR Review Comment: https://git.openjdk.org/jdk/pull/21394#discussion_r1794056631