RFR: 8295754: PaginationSkin: memory leak when changing skin

[Kevin Rushforth]

On Thu, 20 Oct 2022 20:48:07 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

> Fixes memory leaks as determined by SkinMemoryLeakTest (remove line 171) and a leak tester
> https://github.com/andy-goryachev-oracle/Test/blob/main/src/goryachev/apps/LeakTest.java
> 
> Make sure to configure the current test in LeakTest:
> protected final Type WE_ARE_TESTING = Type.PAGINATION;
> 
> Found another issue: Pagination class does not survive replacing its skin (all components disappear).
> 
> caused by:
> - adding and not removing listeners
> - adding and not removing children Nodes
> - setting control's properties in the constructor
> - incorrectly setting a clip rectangle
> 
> NOTE: the fix will requires both ListenerHelper [JDK-8294809](https://bugs.openjdk.org/browse/JDK-8294809) and Skin.install() [JDK-8290844](https://bugs.openjdk.org/browse/JDK-8290844) changes.

This looks good.

@aghaisas Can you review this?

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

Marked as reviewed by kcr (Lead).

PR: https://git.openjdk.org/jfx/pull/925