As the exception states the object passed to remove must be a managed entity, update your destroy method to look like this:
public void destroy(Unit unit) {
Unit managedUnit = em.merge(unit);
em.remove(managedUnit);
}
Also, is this 'Unit' class involved in any relationships? If so, the application is responcible for removing these relationships prior to deleting this entity. There is no relationship maintenance in JPA.
--Gordon
-----Original Message-----
From: Daniel Cavalcanti [mailto:dhcavalcanti_at_gmail.com]
Sent: Saturday, June 16, 2007 12:39 PM
To: glassfish
Subject: problem removing entity
Hi...
I'm trying to remove an entity from a app-client that calls a session bean (facade pattern) to carry the removal.
In the session bean, the relevant parts of code follow:
@PersistenceContext()
private EntityManager em;
public void destroy(Unit unit) {
em.merge(unit);
em.remove(unit);
}
However, I'm getting this exception -- trace retrieved from java web start console:
Exception in thread "AWT-EventQueue-2" javax.ejb.EJBException: nested exception is: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.RemoteException : null; nested exception is:
java.lang.IllegalArgumentException: Entity must be managed to call remove: 123 Foo Road, Bar City, FL 33300, try merging the detached and try the remove again.
java.rmi.ServerException : RemoteException occurred in server thread; nested exception is:
java.rmi.RemoteException: null; nested exception is:
java.lang.IllegalArgumentException: Entity must be managed to call remove: 123 Foo Road, Bar City, FL 33300, try merging the detached and try the remove again.
at com.sun.corba.ee.impl.javax.rmi.CORBA.Util.mapSystemException(Util.java:203)
at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:176)
at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:123)
at com.sun.corba.ee.impl.presentation.rmi.bcel.BCELStubBase.invoke(BCELStubBase.java:196)
at com.playground.concierge.model.facade.__UnitFacadeRemote_Remote_DynamicStub.destroy (com/playground/concierge/model/facade/__UnitFacadeRemote_Remote_DynamicStub.java)
at com.playground.concierge.model.facade._UnitFacadeRemote_Wrapper.destroy(com/playground/concierge/model/facade/_UnitFacadeRemote_Wrapper.java)
at com.playground.concierge.manager.ConciergeManager.unitsRemoveButtonActionPerformed(ConciergeManager.java:334)
at com.playground.concierge.manager.ConciergeManager.access$200(ConciergeManager.java:15)
at com.playground.concierge.manager.ConciergeManager$3.actionPerformed(ConciergeManager.java:91)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed (Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased (Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent (Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent (Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters (Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.rmi.RemoteException: null; nested exception is:
java.lang.IllegalArgumentException : Entity must be managed to call remove: 123 Foo Road, Bar City, FL 33300, try merging the detached and try the remove again.
at com.sun.enterprise.iiop.POAProtocolMgr.mapException(POAProtocolMgr.java:251)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1375)
at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1305)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke (EJBObjectInvocationHandler.java:210)
at com.sun.ejb.containers.EJBObjectInvocationHandlerDelegate.invoke(EJBObjectInvocationHandlerDelegate.java:117)
at $Proxy72.destroy(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke (Method.java:597)
at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:125)
at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java :658)
at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:198)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java :1820)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1680)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java :1062)
at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:194)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java :780)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.dispatch(CorbaMessageMediatorImpl.java:537)
at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.doWork(CorbaMessageMediatorImpl.java:2541)
at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:524)
Caused by: java.lang.IllegalArgumentException: Entity must be managed to call remove: 123 Foo Road, Bar City, FL 33300, try merging the detached and try the remove again.
at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.performRemove(UnitOfWorkImpl.java:2781)
at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerImpl.remove(EntityManagerImpl.java:253)
at com.sun.enterprise.util.EntityManagerWrapper.remove(EntityManagerWrapper.java:512)
at com.playground.concierge.model.facade.UnitFacade.destroy(UnitFacade.java:49)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke (Method.java:597)
at com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1067)
at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:176)
at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod (BaseContainer.java:2884)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:3975)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:203)
... 17 more
javax.ejb.EJBException: nested exception is: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.RemoteException: null; nested exception is:
java.lang.IllegalArgumentException : Entity must be managed to call remove: 123 Foo Road, Bar City, FL 33300, try merging the detached and try the remove again.
at com.playground.concierge.model.facade._UnitFacadeRemote_Wrapper.destroy(com/playground/concierge/model/facade/_UnitFacadeRemote_Wrapper.java)
at com.playground.concierge.manager.ConciergeManager.unitsRemoveButtonActionPerformed(ConciergeManager.java:334)
at com.playground.concierge.manager.ConciergeManager.access$200(ConciergeManager.java:15)
at com.playground.concierge.manager.ConciergeManager$3.actionPerformed(ConciergeManager.java:91)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed (Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased (Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent (Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent (Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters (Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)