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

[Damon Nguyen]

On Tue, 22 Apr 2025 16:49:51 GMT, Alexander Zuev <kizune at openjdk.org> wrote:

>> Damon Nguyen has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Move width and height to EDT
>
> test/jdk/javax/swing/JRootPane/bug4403624.java line 92:
> 
>> 90: 
>> 91:             r.mouseMove(p.x + OFFSET, p.y + OFFSET);
>> 92:             Color c = r.getPixelColor(p.x + OFFSET, p.y + OFFSET);
> 
> That might fail intermittently on the macOS because you take a pixel color exactly at the place where mouse cursor is and it's a known issue on m1 based macs that cursor sometimes messes up the screenshots and pixel color grabbing - either directly (cursor is visible on screenshot) or indirectly (macOS calculates cursor effects such as shadow leaving traces of it in the screen buffer that we analyze). Whenever it is logically possible i'm trying to move cursor at least couple of pixels away from the area i'm going to analyze for color comparison.

That `mouseMove` call isn't actually necessary, so it has been removed. Thanks for the warning

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PR Review Comment: https://git.openjdk.org/jdk/pull/24758#discussion_r2054588773