RFR: 8346154: [XWayland] Some tests fail intermittently in the CI, but not locally

[Alexander Zvegintsev]

On Sun, 21 Dec 2025 04:11:01 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> Isn’t it suspicious that it is not possible to show the frame quickly? I mean, 1 second is quite a long time. Is there any possibility to improve this on the toolkit side?

This is just a precaution, and bringing it to a standard format for our tests `setVisible` / `waitForIdle` / `delay`.
Whether it's 1000 ms or 500 ms doesn't change anything for the test; it can still fail intermittently.

> test/jdk/java/awt/KeyboardFocusmanager/TypeAhead/ButtonActionKeyTest/ButtonActionKeyTest.java
The test may still fail intermittently in the CI, but an additional delay after setVisible won't cause any problems / https://bugs.openjdk.org/browse/JDK-8257529

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PR Review Comment: https://git.openjdk.org/jdk/pull/28939#discussion_r2638427442