[7u40] Request for approval : 7056447 test/java/lang/management/ManagementFactory/MBeanServerMXBeanUnsupportedTest.java fails in agentvm

[Seán Coffey]

just some test stabilization here. I'd like to backport this to jdk7u-dev.
bug report: http://bugs.sun.com/view_bug.do?bug_id=7056447
jdk8 changeset : http://hg.openjdk.java.net/jdk8/tl/jdk/rev/0bde4bed86e5

I don't have a link to original review thread (2011) but it's a minor 
modification to test only.

regards,
Sean.