RFR: 8290040: Provide simplified deterministic way to manage listeners [v8]

[John Hendrikx]

On Mon, 7 Nov 2022 20:29:16 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

>> John Hendrikx has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fix javadoc error
>
> I am not a native speaker, but to me `whenever` sounds event better than `conditionOn`.  I might be wrong, but it does suggest that the binding becomes active *again* when the condition turns `true`.

@andy-goryachev-oracle @mstr2 would one of you be willing to review this one as well?  It should be close to its final state now.

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PR: https://git.openjdk.org/jfx/pull/830