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From Quintin Beukes <quin...@last.za.net>
Subject InitialContext / Comms protocol recovery from a SystemException
Date Mon, 02 Nov 2009 18:44:28 GMT
Hey,

When I get a SystemException from the container during remote EJB
invocation, all future requests for the InitialContext are "broken". My
exact situation (reason for causing the SystemException) is on my fault, but
if there is another reason I think it's good to recover from it so to be
able to continue serving requests. I got the following by invoking on a
method which isn't in the remote EJB class/Remote interface.

This is what I got:
------- SNIP -------
02 Nov 2009 20:28:33,649 ERROR -- Exception: Error deleting employee: XXXXXX
(javax.ejb.EJBException)
javax.ejb.EJBException: Container has suffered a SystemException

 org.apache.openejb.client.EJBObjectHandler._invoke(EJBObjectHandler.java:178)

 org.apache.openejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:117)

 org.apache.openejb.client.proxy.Jdk13InvocationHandler.invoke(Jdk13InvocationHandler.java:52)
    $Proxy7.deletePerson(Unknown Source)

 net.kunye.personnel.client.employees.delete.DeleteEmployeeWizardAction.performAction(DeleteEmployeeWizardAction.java:87)

 net.kunye.personnel.client.employees.delete.DeleteEmployeeWizardAction.performAction(DeleteEmployeeWizardAction.java:55)

 org.openide.util.actions.NodeAction$DelegateAction$1.run(NodeAction.java:589)

 org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:77)

 org.openide.util.actions.NodeAction$DelegateAction.actionPerformed(NodeAction.java:585)
    javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)

 javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)

 javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
    javax.swing.AbstractButton.doClick(AbstractButton.java:357)

 javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1220)

 javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1261)
    java.awt.Component.processMouseEvent(Component.java:6041)
    javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
    java.awt.Component.processEvent(Component.java:5806)
    java.awt.Container.processEvent(Container.java:2058)
    java.awt.Component.dispatchEventImpl(Component.java:4413)
    java.awt.Container.dispatchEventImpl(Container.java:2116)
    java.awt.Component.dispatchEvent(Component.java:4243)
    java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
    java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
    java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
    java.awt.Container.dispatchEventImpl(Container.java:2102)
    java.awt.Window.dispatchEventImpl(Window.java:2440)
    java.awt.Component.dispatchEvent(Component.java:4243)
    java.awt.EventQueue.dispatchEvent(EventQueue.java:599)

 org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)

 java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)

 java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)

 java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
    java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
    java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
    java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

java.rmi.RemoteException: The server has encountered a fatal error: Unknown
error in container java.lang.NullPointerException; nested exception is:
java.lang.NullPointerException

 org.apache.openejb.server.ejbd.EjbRequestHandler.replyWithFatalError(EjbRequestHandler.java:425)

 org.apache.openejb.server.ejbd.EjbRequestHandler.processRequest(EjbRequestHandler.java:205)

 org.apache.openejb.server.ejbd.EjbDaemon.processEjbRequest(EjbDaemon.java:196)
    org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:149)
    org.apache.openejb.server.ejbd.EjbServer.service(EjbServer.java:71)

 org.apache.openejb.server.ejbd.KeepAliveServer$Session.service(KeepAliveServer.java:213)

 org.apache.openejb.server.ejbd.KeepAliveServer.service(KeepAliveServer.java:233)
    org.apache.openejb.server.ejbd.EjbServer.service(EjbServer.java:66)
    org.apache.openejb.server.ServicePool$2.run(ServicePool.java:91)
    org.apache.openejb.server.ServicePool$3.run(ServicePool.java:120)

 java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    java.lang.Thread.run(Thread.java:619)

java.lang.NullPointerException: null

 org.apache.geronimo.openejb.GeronimoSecurityService.isCallerAuthorized(GeronimoSecurityService.java:96)

 org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:151)

 org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:136)

 org.apache.openejb.server.ejbd.EjbRequestHandler.doEjbObject_BUSINESS_METHOD(EjbRequestHandler.java:238)

 org.apache.openejb.server.ejbd.EjbRequestHandler.processRequest(EjbRequestHandler.java:129)

 org.apache.openejb.server.ejbd.EjbDaemon.processEjbRequest(EjbDaemon.java:196)
    org.apache.openejb.server.ejbd.EjbDaemon.service(EjbDaemon.java:149)
    org.apache.openejb.server.ejbd.EjbServer.service(EjbServer.java:71)

 org.apache.openejb.server.ejbd.KeepAliveServer$Session.service(KeepAliveServer.java:213)

 org.apache.openejb.server.ejbd.KeepAliveServer.service(KeepAliveServer.java:233)
    org.apache.openejb.server.ejbd.EjbServer.service(EjbServer.java:66)
    org.apache.openejb.server.ServicePool$2.run(ServicePool.java:91)
    org.apache.openejb.server.ServicePool$3.run(ServicePool.java:120)

 java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)

 java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    java.lang.Thread.run(Thread.java:619)

------- SNIP -------

There after, when I try to invoke OTHER methods, I get this:



02 Nov 2009 20:29:45,990 ERROR -- Exception: Error creating new employee:
XXXXXX (javax.ejb.EJBException)
javax.ejb.EJBException: Unknown Container Exception:
java.rmi.RemoteException: Received invalid response code from server: -1

 org.apache.openejb.client.EJBObjectHandler._invoke(EJBObjectHandler.java:184)

 org.apache.openejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:117)

 org.apache.openejb.client.proxy.Jdk13InvocationHandler.invoke(Jdk13InvocationHandler.java:52)
    $Proxy7.registerPerson(Unknown Source)

 net.kunye.personnel.client.employees.add.AddEmployeeWizardAction.performAction(AddEmployeeWizardAction.java:69)

 net.kunye.personnel.client.employees.add.AddEmployeeWizardAction.openWizard(AddEmployeeWizardAction.java:47)

 net.kunye.personnel.client.navigation.NavigationRootTopComponent.btnAddEmployeeActionPerformed(NavigationRootTopComponent.java:107)

 net.kunye.personnel.client.navigation.NavigationRootTopComponent.access$000(NavigationRootTopComponent.java:36)

 net.kunye.personnel.client.navigation.NavigationRootTopComponent$1.actionPerformed(NavigationRootTopComponent.java:67)
    javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)

 javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)

 javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)

 javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
    java.awt.Component.processMouseEvent(Component.java:6041)
    javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
    java.awt.Component.processEvent(Component.java:5806)
    java.awt.Container.processEvent(Container.java:2058)
    java.awt.Component.dispatchEventImpl(Component.java:4413)
    java.awt.Container.dispatchEventImpl(Container.java:2116)
    java.awt.Component.dispatchEvent(Component.java:4243)
    java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
    java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
    java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
    java.awt.Container.dispatchEventImpl(Container.java:2102)
    java.awt.Window.dispatchEventImpl(Window.java:2440)
    java.awt.Component.dispatchEvent(Component.java:4243)
    java.awt.EventQueue.dispatchEvent(EventQueue.java:599)

 org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)

 java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)

 java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)

 java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
    java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
    java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
    java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

java.rmi.RemoteException: Received invalid response code from server: -1

 org.apache.openejb.client.EJBObjectHandler.businessMethod(EJBObjectHandler.java:239)

 org.apache.openejb.client.EJBObjectHandler._invoke(EJBObjectHandler.java:157)

 org.apache.openejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:117)

 org.apache.openejb.client.proxy.Jdk13InvocationHandler.invoke(Jdk13InvocationHandler.java:52)
    $Proxy7.registerPerson(Unknown Source)

 net.kunye.personnel.client.employees.add.AddEmployeeWizardAction.performAction(AddEmployeeWizardAction.java:69)

 net.kunye.personnel.client.employees.add.AddEmployeeWizardAction.openWizard(AddEmployeeWizardAction.java:47)

 net.kunye.personnel.client.navigation.NavigationRootTopComponent.btnAddEmployeeActionPerformed(NavigationRootTopComponent.java:107)

 net.kunye.personnel.client.navigation.NavigationRootTopComponent.access$000(NavigationRootTopComponent.java:36)

 net.kunye.personnel.client.navigation.NavigationRootTopComponent$1.actionPerformed(NavigationRootTopComponent.java:67)
    javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)

 javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)

 javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
    javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)

 javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
    java.awt.Component.processMouseEvent(Component.java:6041)
    javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
    java.awt.Component.processEvent(Component.java:5806)
    java.awt.Container.processEvent(Container.java:2058)
    java.awt.Component.dispatchEventImpl(Component.java:4413)
    java.awt.Container.dispatchEventImpl(Container.java:2116)
    java.awt.Component.dispatchEvent(Component.java:4243)
    java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
    java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
    java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
    java.awt.Container.dispatchEventImpl(Container.java:2102)
    java.awt.Window.dispatchEventImpl(Window.java:2440)
    java.awt.Component.dispatchEvent(Component.java:4243)
    java.awt.EventQueue.dispatchEvent(EventQueue.java:599)

 org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)

 java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)

 java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)

 java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
    java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
    java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
    java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

Quintin Beukes

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