RFR: 8258777: SkinBase: add api to un-/register invalidation-/listChange listeners [v9]

Sun Apr 18 10:26:53 UTC 2021

On Sat, 17 Apr 2021 14:23:32 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> changed as suggested. I used a similar pattern in BehaviorMemoryTest - should I file a testbug to change it in the same way?
>
> Yes, please file a new bug (not high priority, since it is a corner case). I took a look and there are a few other controls tests that use this pattern as well (BehaviorCleanupTest, ListViewTest, TabPaneTest, SkinCleanupTest, SkinLabeledCleanupTest, SkinMemoryLeakTest), so the new bug could cover fixing this for all of them.

done and taken (should cleanup my own dirt ;) [JDK-8265406](https://bugs.openjdk.java.net/browse/JDK-8265406)

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PR: https://git.openjdk.java.net/jfx/pull/409