RFR: 8341257: Open source few DND tests - Set1 [v6]

[Phil Race]

On Thu, 10 Oct 2024 18:49:06 GMT, Damon Nguyen <dnguyen at openjdk.org> wrote:

> Do you mean via a lock or am I misunderstanding this? I assumed this `exit()` was called once because there is only one instance of DragSourceButton/DragSourcePanel which would be the only one calling `exit()`.

OK. If that's the case then this should be fine

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PR Review Comment: https://git.openjdk.org/jdk/pull/21394#discussion_r1795955600