Another one exception that JConsole throws while connecting to GF:
java.lang.NullPointerException
at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:281)
at sun.tools.jconsole.ProxyClient.tryConnect(ProxyClient.java:348)
at sun.tools.jconsole.ProxyClient.connect(ProxyClient.java:296)
at sun.tools.jconsole.VMPanel$2.run(VMPanel.java:280)
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