Richard, Thank you again for all of your help. I changed my conf/standardjboss.xml to use: org.jboss.wsf.container.jboss40.ServiceEndpointInterceptor and no longer get the exceptions during deployment. anonymous wrote : Another important fact is we have tested JBossWS 2.0.1 on JBoss 4.0.5 GA not JBoss 4.0.4 GA. I'll be doing a lot of testing on Jboss 4.0.4 GA, so I can definitely post successful results and/or issues I run into. Thanks, Philip Tenn View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4095184#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...