anonymous wrote : Caused by: java.lang.ClassCastException: org.apache.xerces.parsers.XIncludeAwareParserConfiguration | I haven't looked at the contents of the xercesImpl.jar (yet). But most of the times, its not just that single jar that needed in the classloader scoping. You will have to place the other jars which the xercesImpl.jar depends on, too in the EAR/lib folder. I don't have the exact list of required jars right now. But most of them are jars which contain the xml parsing classes. Give it a try by including the other dependent jars that you know. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4229500#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...