RFR: 8348423: [TestBug] stress test Nodes initialization from a background thread [v4]

[Andy Goryachev]

On Mon, 3 Feb 2025 17:41:21 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> I like it.
>> 
>> Also, I think we may want to add a bit of randomness to the process - in the "jiggler" thread, as well as to tests themselves.
>
> A bit of randomness in the "jiggler" thread seems good. Not sure about adding more randomness in the tests -- maybe, but having them free running (rather than sleeping) is probably more stressful.

in some cases the animation and transitions are getting involved, which might uncover additional issues.

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PR Review Comment: https://git.openjdk.org/jfx/pull/1690#discussion_r1939787610