Hello all, I manage to insert an object with my bean entity but fail when trying to list all objects. The following exception occurs: javax.ejb.EJBException: java.lang.ClassCastException: org.hibernate.hql.ast.HqlToken | org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:69) | org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83) | org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191) | org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) | org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) | org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) | org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102) | org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) | org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) | org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:211) | org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:79) | $Proxy98.listContact(Unknown Source) | servlet.ListContactServlet.doGet(ListContactServlet.java:23) | javax.servlet.http.HttpServlet.service(HttpServlet.java:697) | javax.servlet.http.HttpServlet.service(HttpServlet.java:810) | org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) my bean entity : @Stateless | @Local(value = { ContactManager.class }) | public class ContactManagerBean implements ContactManager { | @PersistenceContext(unitName = "contactUnit") | protected EntityManager em; | | public Contact addContact(Contact contact) { | em.persist(contact); | return contact; } | | public ArrayList<Contact> listContact() { | return (ArrayList<Contact>)em.createQuery("select contact from contact as contact").getResultList(); } | } Can anyone help me? Thanks for helping, Cheers. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4036312#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...