Hi everyone. I have an app that uses a few Hibernate 3 jars. I'm trying to deploy it to a JBoss EAP 4.3, whose default AS instance has already Hibernate 3 JARs on its lib dir. When I start the server, I get a NoSuchMethodException on org.hibernate.validator.ClassValidator class. I created a jboss-app.xml file inside the META-INF directory of my EAR deployment, with these contents: <jboss-app> | <loader-repository> | com.xeridia:archive=TestEAR.ear | <loader-repository-config> | java2ParentDelegation=false | </loader-repository-config> | </loader-repository> | </jboss-app> It didn't work. I also tryed setting java2ParentDelegaton to true with no luck. If I remove the Hibernate 3 JARs from the server/lib directory, then my app starts fine. What am I doing wrong? Thanks in advance View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4236334#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...