RFR: 8319779: SystemMenu: memory leak due to listener never being removed [v2]

[Johan Vos]

On Wed, 13 Dec 2023 09:20:12 GMT, Jose Pereda <jpereda at openjdk.org> wrote:

>> Johan Vos has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   process reviewers comments
>
> About adding an automated test, the leak that PR tries to fix happens in `com.sun.javafx.tk.quantum.GlassSystemMenu`, which is package private, and adding new tests to check `javafx.scene.control.Menu`, or related public classes, won't catch that leak, will it?
> 
> Unless we open it (and all the related classes/methods in `com.sun.glass.ui.*`), I don't think it can be done?

@jperedadnr @hjohn can you review this?
@kevinrushforth feel free to add other reviewers.

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PR Comment: https://git.openjdk.org/jfx/pull/1283#issuecomment-2163597794