RFR: 8342096: Popup menus that request focus are not shown on Linux with Wayland [v4]

[Harshitha Onkar]

On Wed, 22 Jan 2025 03:42:56 GMT, Alexander Zvegintsev <azvegint at openjdk.org> wrote:

>> The previous [JDK-8319103](https://bugs.openjdk.org/browse/JDK-8319103) fix was not complete.
>> 
>> The case where a menu item with a focusable component was not a direct child of a window was missing(failing the `if (window == oppositeWindow.getParent() ) {` check), so the ungrab event was posted prematurely.
>> 
>> This can be fixed by adding `waylandWindowFocusListener` to all submenus in hierarchy.
>> 
>> The manual test updated to use this case, and also added an automated test that checks that it didn't close prematurely.
>
> Alexander Zvegintsev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   getLocationOnScreen on EDT

Updated test changes LGTM

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Marked as reviewed by honkar (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/22729#pullrequestreview-2568151132