<Swing Dev> RFR: 8261689: javax/swing/JComponent/7154030/bug7154030.java still fails with "Exception: Failed to hide opaque button" [v3]

[Sergey Bylokhov]

On Tue, 2 Mar 2021 22:08:48 GMT, Alexander Zuev <kizune at openjdk.org> wrote:

>> test/jdk/javax/swing/JComponent/7154030/bug7154030.java line 101:
>> 
>>> 99: 
>>> 100:             robot.waitForIdle(1000);
>>> 101:             robot.delay(1000);
>> 
>> I doubt that this is a test issue, 2 seconds was not enough to properly show the frame?
>
> The problem is that i tried to reproduce this behavior locally on Ubuntu running this test (and the simplified version of it) literally millions of times. The only time it fails is when it is run on mach5 and even then it fails very rarely - once per hundreds of runs. The changes here - especially forcing the resize - seems to eliminate the problem with mach5.

Then it is a product bug, If the problem is unrelated to the performance and the root cause is in the wrong/broken final layout. Do we want to suggest the same thing if the user will get the same issue in their app?

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PR: https://git.openjdk.java.net/jdk/pull/2790