RFR: 8273617: UninitializedDisplayModeChangeTest.java times out on macOS 12 [v2]

[Prasanta Sadhukhan]

On Fri, 19 Sep 2025 05:56:48 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> I think you may have missed the point as to why this test is unstable.
>> Look at all the code running on the EDT which constructs the UI that should be either not run there or should be in separate calls.
>
> I guess it was not unstable and it was failing every time as per the description "is timing out every time on macOS 12. "
> and atleast now it is not with this fix
> 
> but I get your point..I will see to it and make it more robust..

I have modified the EDT code and also reduced the timeout..

50 iterations of test run on all platforms is ok

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PR Review Comment: https://git.openjdk.org/jdk/pull/27365#discussion_r2362298104