RFR: 8360160: ubuntu-22-04 machine is failing client tests [v2]

[Damon Nguyen]

On Mon, 25 Aug 2025 17:56:16 GMT, Alexander Zvegintsev <azvegint at openjdk.org> wrote:

>> Damon Nguyen has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Replace setAutoDelay
>
> test/jdk/java/awt/Frame/FrameVisualTest.java line 66:
> 
>> 64:             robot.delay(1000);
>> 65: 
>> 66:             System.out.println("frames.length: " + frames.length);
> 
> I suspect that the root cause of this failure is the same as in the [JDK-8280987](https://bugs.openjdk.org/browse/JDK-8280987) - spawning a log of windows at once, like one or two hundred. This is still happening with the updated test in the `createAndShowUI()`.
> 
> I guess they should either be shown in batches (of 20 windows, for example) with a delay between each batch to give the system time to handle them or the number of tested graphics configurations should be reduced.

I see I misunderstood slightly from when you previously brought this up. Thanks for the info! I can do this in batches and show these side by side instead.

I was able to recreate the failure now in ubuntu 22.04 and it crashes with 210 open windows at once (due to having many gcs detected). I'll update this PR with this change next.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26871#discussion_r2299515206