RFR: 8294589: MenuBarSkin: memory leak when changing skin [v22]

[John Hendrikx]

On Fri, 2 Dec 2022 17:25:16 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

>> Fixed memory leak by using weak listeners and making sure to undo everything that has been done to MenuBar/Skin in dispose().
>> 
>> This PR depends on a new internal class ListenerHelper, a replacement for LambdaMultiplePropertyChangeListenerHandler.
>> See https://github.com/openjdk/jfx/pull/908
>
> Andy Goryachev has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 54 commits:
> 
>  - Merge remote-tracking branch 'origin/master' into
>    8294589.menubarskin.leak
>  - 8294589: trying to avoid merge conflicts in the future
>  - Merge remote-tracking branch 'origin/master' into
>    8294589.menubarskin.leak
>  - 8294589: review comments
>  - 8294589: review comments
>  - Merge remote-tracking branch 'origin/master' into
>    8294589.menubarskin.leak
>  - 8294589: review comments
>  - 8294589: cleanup
>  - Merge remote-tracking branch 'origin/master' into
>    8294589.menubarskin.leak
>  - 8294589: testing github merge-conflict label behavior
>  - ... and 44 more: https://git.openjdk.org/jfx/compare/e64e1292...d4e6141f

Marked as reviewed by jhendrikx (Author).

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PR: https://git.openjdk.org/jfx/pull/906