The lock file problem is probably caused by a previous failure.
I suspect the cause of your NPE is this error:
[30/Aug/2011:16:31:05 BST] ERROR [B3168]: Invalid broker address for this
broker to run in cluster: Loopback IP address is not allowed in broker
address
mq://127.0.1.1:27676/?instName=clusteri1&brokerSessionUID=1190975719361934592
[1] for cluster<br />
At a guess, this might be because you're using "localhost", and "localhost"
resolves to the loopback address. I think that's common on Linix systems.
Nigel
[1]
http://www.java.net//127.0.1.1:27676/?instName=clusteri1&brokerSessionUID=1190975719361934592
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