RFR: JDK-8224260: ChangeListener not triggered when adding a new listener in invalidated method

[Nir Lisker]

On Thu, 30 Mar 2023 21:53:48 GMT, John Hendrikx <jhendrikx at openjdk.org> wrote:

> Fixes three issues in ExpressionHelper:
> 
> - Current Value was not retained when changing from SingleChange to Generic, this can lead to missed changes
> - Current Value was not retained when changing from Generic to SingleChange, this can lead to missed changes
> - Current Value was not cleared when last change listener was removed in Generic variant, resulting in an older value being referenced and not becoming eligible for GC until either a ChangeListener is added again, or sufficient InvalidationListeners are removed to switch to the SingleInvalidation implementation...

Yes. I'm in the middle of reviewing another PR, so this will be the next one.

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

PR Comment: https://git.openjdk.org/jfx/pull/1078#issuecomment-1500679355