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

[Prasanta Sadhukhan]

On Wed, 10 Nov 2021 05:47:46 GMT, Phil Race <prr at openjdk.org> wrote:

>> Prasanta Sadhukhan has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - Review fix
>>  - Fix
>
> 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?

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