[jboss-user] [EJB 3.0] - java.lang.ClassCastException when listing objects
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.
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