[7u-dev] Request for approval for 7084033: TEST_BUG: test/java/lang/ThreadGroup/Stop.java fails intermittently

[Dmeetry Degrave]

Requesting to port this change back from jdk8 to jdk7u-dev:

http://hg.openjdk.java.net/jdk8/jdk8/jdk/rev/184578f3e8b9

thanks,
dmeetry