anonymous wrote : | Btw, how about trying this - Delete the existing EAR from the deploy folder (maybe through an Ant script) and once the EAR is deleted successfully, then just copy the new EAR to the deploy folder. See if that works. | After deleting the old ear file, when deploying the new ear, the war file it is unpacked to the tmp folder now, but there is still the "java.lang.IllegalArgumentException: argument type mismatch" thrown as before, when catalina tries to initiate the servlet. And there is an error message now that the servlet is not available, when the new webapp is calling the servlet. JBoss seems to use either the old stubs or old skeletons if the argument does not fit the object that is injected? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4145576#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...