<AWT Dev> [9] Review request for 8049198 [macosx] Incorrect thread access when showing splash screen

[Alexander Scherbatiy]

Hello,

Could you review the fix:
   bug: https://bugs.openjdk.java.net/browse/JDK-8049198
   webrev: http://cr.openjdk.java.net/~alexsch/8049198/webrev.00

  NSScreen call is moved to perform on the main thread.

Thanks,
Alexandr.