RFR: 8252936: Optimize removal of listeners from ExpressionHelper.Generic

[Marius Hanl]

On Thu, 10 Sep 2020 15:49:59 GMT, yosbits <github.com+7517141+yososs at openjdk.org> wrote:

>> @yososs Please file a new JBS issue for this. You will need to prove that your proposed change is functionally equivalent (or that any perceived changes are incidental and still conform to the spec). You should also think about whether your proposed change needs additional tests.
>
> Because it is such a small correction
> Problem from me I feel that it is not easy to register, but I will try to register. 
> 
> It has passed two existing tests for compatibility:
> 
> * gradle base:test 
> * gradle controls:test 
> 
> I have just reported it as an enhancement proposal.

Any news for this PR? Can I help somewhere?

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PR: https://git.openjdk.java.net/jfx/pull/108