RFR: 8307311: Timeouts on one macOS 12.6.1 host of two Swing JTableHeader tests

[Alexander Zvegintsev]

On Wed, 17 May 2023 07:06:01 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

> Issue was bug6889007.java was causing a timeout issue on mac system.  Although bug6889007.java fail with small test group with "Wrong cursor type" error, it could not reproduce bug6884066.java 
> The hang issue might be due to waitForIdle() being called in loop which will be calling sync() so replaced with delay..
> 
> Modified fix passed the suggested small test group `desktop_timeout ` several times in all platforms 
> in addition to several iterations of the test run in standalone mode in all platforms..

test/jdk/javax/swing/JTableHeader/6889007/bug6889007.java line 72:

> 70:                 frame.pack();
> 71:                 frame.setLocationRelativeTo(null);
> 72:                 frame.setAlwaysOnTop(true);

Why do we need to keep the window on top?

test/jdk/javax/swing/JTableHeader/6889007/bug6889007.java line 87:

> 85:             for(int i = -shift; i < width + 2*shift; i++) {
> 86:                 robot.mouseMove(x++, y);
> 87:                 robot.delay(100);

It looks like we don't need this delay since there is `robot.setAutoDelay(100);` on line 56. A total delay of 200ms seems too much to me.

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PR Review Comment: https://git.openjdk.org/jdk/pull/14026#discussion_r1198849137
PR Review Comment: https://git.openjdk.org/jdk/pull/14026#discussion_r1198847995