Request for approval: 4909150

[Pavel Porvatov]

Hi,

Could you please approve the fix of CR 4909150 (WindowsTreeUI can cause 
NullPointerException occasionally) for 7u2? Bug description is here:
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4909150

Some time ago the fix was prepared, approved and pushed in jdk8:
http://hg.openjdk.java.net/jdk8/awt/jdk/rev/5c22624d193e

For 7u2 the fix is the same and doesn't contain any modifications.

Regards, Pavel