Ron,
This probelem is something which has taken a long.. One common thing in noticed that when Jboss tocuhes it MAX heap size then after some time i can see this problem starts comming , but still not able to find the root cause.
I have started the setup with the following log categories to set TRACE level
org.jboss.messaging
org.jboss.jms
org.jboss.remoting
will post when the will re-occur
Thanks for your response
Raj..