RFR: 8276058: Some swing test fails on specific CI macos system [v3]

[Sergey Bylokhov]

On Wed, 17 Nov 2021 13:29:14 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> I don't see a reason to discard the various stability improvements.
>> The discussion is long so I may not be summarising correctly but 
>> - A product fix may resolve most of the issues and yet
>> - Stability fixes are still valuable
>> - The one test with a colour tolerance update may be better platform problem listed 
>> - The offset of -10,-10 for the cursor maybe better if it was parameterised and a bit bigger.
>
> @prrace Do you have any comments? If not, can you please approve?

@prsadhuk @prrace Did we report this to Apple? I have found that some of the tck tests could be unstable due to this, and "CGDisplayHideCursor/CGDisplayShowCursor" may cure it, but probably Apple suggests something else?

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PR: https://git.openjdk.java.net/jdk/pull/6140