RFR: 8354695: Open source several swing tests batch7 [v3]

[Damon Nguyen]

On Tue, 22 Apr 2025 17:58:18 GMT, Damon Nguyen <dnguyen at openjdk.org> wrote:

>> test/jdk/javax/swing/JScrollPane/AcceleratedWheelScrolling/RTLScrollers.java line 26:
>> 
>>> 24: // A few Swing components which use the mouse wheel to scroll
>>> 25: //
>>> 26: // NOTE: The robot portion of this test probably has a number of EDT problems,
>> 
>> Yikes. You know that there are EDT problems but just decided to ignore them. Are there a lot of them? How hard it would be to get rid of them?
>
> That's a remnant from the original test. I tried cleaning up the robot calls and test methods further. Re-tested `HorizScrollers` on my windows machine and all still looks good. I don't see how it's feasible to call all the methods in EDT in this JDialog helper class. So far the test looks ok and I have not encountered any issues, but let me know if you have any suggestions or concerns.

I made what UI elements I could static and volatile to add methods that change UI elements to the EDT. Test still runs as expected and passes on W11.

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PR Review Comment: https://git.openjdk.org/jdk/pull/24758#discussion_r2054654999