RFR: 8273617: UninitializedDisplayModeChangeTest.java times out on macOS 12

[Prasanta Sadhukhan]

On Fri, 19 Sep 2025 01:14:33 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>> Test used to timeout even though it seems the test passed..Increased the timeout to a safe value as sometimes it shows elapsed time to timeout > 300secs in macOS in CI and also ensured the wait-time for child process to execute the test is not been waiting endlessly.
>> Also ensured the original display mode is resetted after the test to prevent affecting following tests.
>> 
>> Tried 100 iterations of the fix on all platforms which is ok
>
> test/jdk/java/awt/FullScreen/UninitializedDisplayModeChangeTest/DisplayModeChanger.java line 69:
> 
>> 67:                             f.dispose();
>> 68:                         }
>> 69:                         gd.setDisplayMode(currentDM);
> 
> Should not this be already reset by the gd.setFullScreenWindow(null)?

I dont see it does..It sets the bounds as I see, it does not reset the display mode..
but say, even though it does, will it be a problem as this will be a no-op (its like double free)

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PR Review Comment: https://git.openjdk.org/jdk/pull/27365#discussion_r2361614626