RFR: 8190411: NPE in SliderSkin:140 if Slider.Tooltip.autohide is true [v2]

[Karthik P K]

On Fri, 2 Dec 2022 06:47:41 GMT, Ambarish Rapte <arapte at openjdk.org> wrote:

>> Karthik P K has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Address review comments
>
> Providing few quick comments about the test.

@arapte , Addressed review comments and added CountDownLatch for tooltip display as discussed.

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PR: https://git.openjdk.org/jfx/pull/965