anonymous wrote : [spring/pap-core-securityFramework-hibernate.xml]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: org/hibernate/persister/entity/EntityPersister Are you packaging any of hibernate related jars in your application? Did you change anything in the JBoss that you installed? And can you post the output of the following command: jar -tf myApp.ear Where myApp.ear is your EAR name. Please remember to wrap the output, logs, xml content or code in a Code block using the "Code" button in the message editor window. Please hit the Preview button to see that your message is properly formatted. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4180066#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...