RFR: 8294589: MenuBarSkin: memory leak when changing skin [v14]

[Andy Goryachev]

On Wed, 30 Nov 2022 18:36:13 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 46 commits:
> 
>  - Merge remote-tracking branch 'origin/master' into
>    8294589.menubarskin.leak
>  - 8294589: testing github merge-conflict label behavior
>  - 8294589: cleanup
>  - Merge remote-tracking branch 'origin/master' into
>    8294589.menubarskin.leak
>  - Merge branch '8294809.listener.helper' into 8294589.menubarskin.leak
>  - 8294809: generics
>  - 8294589: owner
>  - Merge branch '8294809.listener.helper' into 8294589.menubarskin.leak
>  - 8294809: is alive
>  - Merge branch '8294809.listener.helper' into 8294589.menubarskin.leak
>  - ... and 36 more: https://git.openjdk.org/jfx/compare/0a785ae0...45f3e374

@hjohn : could you please take a look at this, since it had a non-trivial merge?  thanks!

-------------

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