The AS7 testsuite started experiencing "JMX server connection timeout 552" threads accumulating during the AS7 testsuite run. If the testsuite runs fast enough, this seems to cause "OutOfMemoryError: unable to create new native thread" errors near the end of the testsuite run.

This doesn't recreate for everyone but it does for me.

To fix this, I think we need to keep the JMXConnector returned from calling JMXConnectorFactory.connect() until we are done with the MBeanServerConnection and call JMXConnector.close() then.