"sagimann" wrote : I'm having the same problem. did you solve this? Unfortunately, no. I think there was an open issue related to this, with a fix version of JBossAS 5.0. I guess updating JBossAS 4 with the latest JBossWS JARs is not enough. I had to go the traditional route and do a JNDI lookup as described here: http://jbws.dyndns.org/mediawiki/index.php?title=JAX-RPC_User_Guide#Web_S... View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4158707#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...