<Swing Dev> RFR: 8233551: [TESTBUG] SelectEditTableCell.java fails on MacOS

[Pankaj Bansal]

Hi All,

Please review the following test only fix for jdk15.

Bug : https://bugs.openjdk.java.net/browse/JDK-8233551

webrev: http://cr.openjdk.java.net/~pbansal/8233551/webrev00/ 
<http://cr.openjdk.java.net/%7Epbansal/8233551/webrev00/>

This test was added to the ProblemList as it was failing in nightly 
automated testing.

I have made some changes to add auto delay in Robot and properly dispose 
the frame to stabilize the test. I have run multiple iterations of the 
test on mach5 and it is always passing. Links in JBS.

Regards
Pankaj