The stack trace shows this is in jboss remoting. Have you tried asking in the jboss remoting forum? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4146991#4146991 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4146991