<AWT Dev> RFR: 8253269: The CheckCommonColors test should provide more info on failure

[Phil Race]

On Sat, 3 Oct 2020 11:03:20 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> This test fails from time to time on Linux in mach5.
> 
> I was able to reproduce it on one of the hosts and confirm that the root cause was in the slow
> systems, which could not complete show/repaint/show/repaint actions in time.
> After the fix the test will wait a little bit longer and request a repaint on each falied attempt.
> 
> I am also added and additional logging to make possible bugs evaluations easy.

Marked as reviewed by prr (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/494