Which JVM are you using? Try running the app server with the -verbose:class JVM option. This will print out the jar file for each loaded class, perhaps there is a web services-related jar file hiding somewhere in your classpath or in some endorsed directory that is causing this problem (look for javax.xml.soap.SOAPMessage). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4031141#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...