RFR: 8148041: Test java/awt/Mouse/TitleBarDoubleClick/TitleBarDoubleClick fails on Ubuntu with mouseReleased event after double click on title bar

[Patrick Chen]

On Tue, 15 Nov 2022 00:21:23 GMT, Alexander Zvegintsev <azvegint at openjdk.org> wrote:

> This test was problem listed with ["some tests that leave windows open on the desktop" reason](https://github.com/openjdk/jdk/commit/fd8df3adf13f5df8f5f95482b8e0a70bc519f39f)
> 
> The main issue with the test is that it may pass, but in fact the actual test was not even performed. <br>`jtreg` kills the test window after exiting main and ends the test before it double clicks on window's title(actual test starts from `windowActivated` event).
> 
> So the test was refactored and stabilized:
> * robot invocation moved from EDT to main thread.
> * throwing test exception is performed only after frame is disposed
> * extra delay added after showing window.
> 
> Old Ubuntu 16.04 and macOS 10.10.5 failures is no longer reproducible on modern systems.
> 
> CI testing looks good.

Marked as reviewed by kiraka42 at github.com (no known OpenJDK username).

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PR: https://git.openjdk.org/jdk/pull/11150