Backport JPopupMenu fixes to release branches.

[Denis Lila]

Hi.

I would like to backport these changesets:
http://hg.openjdk.java.net/jdk7/jdk7/jdk/rev/dd66920b2d51
http://hg.openjdk.java.net/jdk7/jdk7/jdk/rev/40414219305f

to 1.7, 1.8, 1.9.

Ok to push?

Thank you,
Denis.
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