RFR: 8190411: NPE in SliderSkin:140 if Slider.Tooltip.autohide is true [v4]

Tue Dec 6 12:31:08 UTC 2022

On Tue, 6 Dec 2022 11:21:08 GMT, Karthik P K <kpk at openjdk.org> wrote:

> @aghaisas please check if bug given above is fixed.

I tested the program provided in [JDK-8190411](https://bugs.openjdk.org/browse/JDK-8190411) with touch based Windows system. The proposed fix fixes the issue.

For [JDK-8293916](https://bugs.openjdk.org/browse/JDK-8293916) 
1. The bug does not have a reproducible test program. 
2. It is reported that the bug does not occur on Windows system - and - I have a touch based Windows system.
3. It is reported that the bug is observed without ToolTip. This indicates that there exists another path to the reported NPE.

My take is on this is - we need to close [JDK-8293916](https://bugs.openjdk.org/browse/JDK-8293916) as "incomplete" till a reproducible sample is provided.

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