<AWT Dev> [13] Review Request: 8224152 [macOS] ProblemList tests that leave rubbish on the screen

[Sergey Bylokhov]

Hello.
Please review the fix for JDK 13.

Bug: https://bugs.openjdk.java.net/browse/JDK-8224152
Fix: http://cr.openjdk.java.net/~serb/8224152/webrev.00

Bug description:

One of the bugs in the Robot implementation can be exposed by 2 different tests. If both runs in a row, they leave some key modifiers pressed which caused another test to press some shortcuts instead of a simple key. One of these shortcuts hide the test window, and as a result, all other shortcuts will send to the terminal window -> tons of utility windows will be opened. Note that these tests are fine, actually, they are a pass but cause some other tests to fail.

While I am working on the bug in Robot, I would like to add these tests to the problem list.

-- 
Best regards, Sergey.