Hello Flarosa, Did have the same problem. I am using jboss-4.0.4.GA the solution give here http://jira.atlassian.com/browse/JRA-6823 helped me: the solution is as follows One way to solve the classloader issue is by reverting the JBoss configuration to the old classloading model. Edit the file \server\default\deploy\jbossweb-tomcat55.sar\META-INF\jboss-service.xml Change the following lines: true true (both are default set to false in jboss-4.0.2). regards, i View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3983379#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...