ESB is currently based on AS4.2.1 and will be for our 4.2.1 release (in less than one weeks time). A subsequent release will support AS 4.2.2. We are currently using WS2.0.0 in the ESB as 2.0.1 was not backwardly compatible with our code. I believe this may have been fixed in a recent CP release but we cannot use those in the project. I still don't know whether the SP2 release includes this fix or not, you owe me an answer on that one ;) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4098960#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...