High CPU utilization (100%) and OutOfMemoryErrors in JBoss A-MQ 6.1

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Issue

We could see that JBoss A-MQ 6.1 server runs into OutOfMemoryErrors and CPU utilization is also very high.
JMS connection time become longer and longer

Environment

Red Hat JBoss A-MQ 6.1
Red Hat JBoss Fuse 6.1

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