Caused by: java.lang.NullPointerException
	at org.jgroups.protocols.pbcast.ClientGmsImpl.join(ClientGmsImpl.java:78)
	at org.jgroups.protocols.pbcast.ClientGmsImpl.join(ClientGmsImpl.java:39)
	at org.jgroups.protocols.pbcast.GMS.down(GMS.java:803)
	at org.jgroups.stack.ProtocolStack.down(ProtocolStack.java:375)
	at org.jgroups.JChannel.downcall(JChannel.java:1376)
	at org.jgroups.JChannel.connect(JChannel.java:366)
	... 22 more