Based on the client code you posted, I assume that your web service looks very similar to that given at http://www.jboss.com/index.html?module=bb&op=viewtopic&t=132729, except yours is an EJB. I compiled your client, and ran it: log4j:WARN No appenders could be found for logger (org.jboss.ws.metadata.builder .jaxws.JAXWSWebServiceMetaDataBuilder). log4j:WARN Please initialize the log4j system properly. test: returned Hello Works for me. JBossAS 5.0.0.Beta4 (which contains JBossWS 2.0.3.GA), JDK 1.5.0_14. It also works in JBossAS 4.2.2. So now the question is, how is your setup different from mine? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4141058#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...