RFR: 8225131: Test DragSourceMotionListenerTest.java fails on Windows

[Alexey Ivanov]

On Mon, 15 Sep 2025 06:24:15 GMT, Tejesh R <tr at openjdk.org> wrote:

> Test is failing frequently on mach5 machines. I have fixed it with stabilizations and moved the frame to center of the screen. After the fix several runs were made on mach5 and no failures were seen.

Please verify whether adding only one set of `waitForIdle` and `delay` after dragging is fully finished is enough.

Revert all the formatting changes to lines that you didn't change otherwise.

test/jdk/java/awt/dnd/DragSourceMotionListenerTest.java line 187:

> 185:             }
> 186:             robot.waitForIdle();
> 187:             robot.delay(100);

Will the test be as stable without these two? Dragging isn't stopped here.

In other words, isn't adding `waitForIdle` after dragging is fully finished at lines 198–199 but before releasing the mouse button and the <kbd>Ctrl</kbd> key.

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Changes requested by aivanov (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/27283#pullrequestreview-3229258592
PR Review Comment: https://git.openjdk.org/jdk/pull/27283#discussion_r2352000209