I personally haven't run into these exceptions. However, if you do a search in JBossMQ
forum
http://www.jboss.com/index.html?module=bb&op=viewforum&f=48 you will find
many such posts where the users have reported similar (if not the same) exceptions under
heavy load. Most of the time, it turned out to be either a JMS related resource leak in
the application or JMS configurations.
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