[9] Review request for 6219960 null reference in ToolTipManager

[Alexander Scherbatiy]

Hello,

Could you review the fix:
  bug: https://bugs.openjdk.java.net/browse/JDK-6219960
  webrev: http://cr.openjdk.java.net/~alexsch/6219960/webrev.00


  The NPE is fixed.

Thanks,
Alexandr.