Request for approval: 8051359 [headless] JPopupMenu creation in headless mode with JDK9b23 causes NPE

[Yuri Gaevsky]

Hello,

Can someone please review/sponsor the following plain backport to the jdk6 repository:

Bug:
  https://bugs.openjdk.java.net/browse/JDK-8051359
JDK7u backport review thread:
  http://mail.openjdk.java.net/pipermail/jdk7u-dev/2014-September/009716.html
Changeset:
  http://hg.openjdk.java.net/jdk9/jdk9/jdk/rev/eb2872ff0b83
Webrev:
  http://cr.openjdk.java.net/~ygaevsky/8051359.jdk6/

The backport has been tested by running JCK6b awt/swing tests under [windows|linux]-x64 in both headful/headless modes.

Thank you,
-Yuri