<Swing Dev> [9] Review request for 8165207: [macosx] Test javax/swing/Popup/TaskbarPositionTest.java fails on Mac 10.12

[Sergey Bylokhov]

Hi, Alex.
Can you please clarify on what versions of OS X and JDK the bug can be reproduced? Thanks.

> 
> Hello,
> review my changes please.
> 
> Fix for https://bugs.openjdk.java.net/browse/JDK-8165207: 
> Webrev:http://cr.openjdk.java.net/~avstepan/8165207/webrev.01/
> Issue: https://bugs.openjdk.java.net/browse/JDK-8165207
> 
> This is a test bug. On Aqua LaF JCombobox popup could appear both upper label and arrow and lower.  
> So - check for its coordinates does not make sense. Also fixed Ctrl-down shortcut. It is invalid - it is special shortcut for OS X. Down key is enough to expand combobox.
> Tested on Mac OS X with different LaFs - Aqua, Nimbus, Metal. Works perfectly after fix.
> I used jdk 9b144 for testing.
> 
> -- 
> Best regards,
> Alexander.