RemoveException(): Illegal attempt to remove a stateful session bean...

[will boyd]

hi,

i'm new to ejbs; new to weblogic server/workshop. going through the e-docs tutorials and playing around with things. i got a custom java control that wraps (delegates to) an ejb control that in turn wraps a stateful session bean. i structured it this way as a workaround to the issue described in this dev2dev article:

Control Lifetime Considerations when Invoking Controls from Page Flows

i need the ejb's operations to be transactional. i'm using container-managed transactions. i got a page flow that calls the custom java control within the page flow's default transaction context:

// My Page Flow
.
.
.
Forward pageFlowAction(FormData form) {
   customControl.doIt(form.getArgs());
   return new Forward("success");
}
.
.
.

the pageFlowAction() method returns successfully. there are no other actions taking place in the page flow after pageFlowAction() successfully returns. however, i get a

javax.ejb.RemoveException(): Illegal attempt to remove a stateful session bean while it is participating in a transaction

error (see full stack trace below). here are my questions:

what can i do to achieve a _legal_ removal of the stateful session bean instance?

would an empty ejbRemove() on the sfsb have any effect?

is SessionSynchronization appropriate here?

would bean-managed transactions using javax.transaction.UserTransaction make a difference?

is the sfsb's remove() method being called by a default onRelease() life cycle method of either the ejb control or the custom java control?

what i have already done to get rid of the RemoveException is to use an slsb instead. but i think an sfsb is more appropriate for the particular use case i am addressing.

thanks for your help.

04 Feb 2005 20:14:38,996 ERROR SessionEJBControlImpl [ExecuteThread: '11' for queue: 'weblogic.kernel.Default'][10.0.0.8-3594a1.101df027730.-8000]: Unable to remove bean instance:
 
Throwable: javax.ejb.RemoveException: Illegal attempt to remove a stateful session bean while it is participating in a transaction
Stack Trace:
javax.ejb.RemoveException: Illegal attempt to remove a stateful session bean while it is participating in a transaction
at weblogic.ejb20.internal.StatefulEJBObject.remove(Lweblogic.ejb20.internal.MethodDescriptor :wink: V(StatefulEJBObject.java:87)
at com.sun_certified.search_engine.Registration.AccountManager_sbdv2o_EOImpl.remove()V(AccountManager_sbdv2o_EOImpl.java:77)
at com.sun_certified.search_engine.Registration.AccountManager_sbdv2o_EOImpl_CBV.remove()V(Unknown Source)
at com.bea.wlw.runtime.core.control.SessionEJBControlImpl.releaseBeanInstance(Z)V(SessionEJBControlImpl.jcs:169)
at com.bea.wlw.runtime.core.control.EJBControlImpl.context_onRelease()V(EJBControlImpl.jcs:568)
at com.bea.wlw.runtime.core.control.SessionEJBControlImpl.context_onRelease()V(SessionEJBControlImpl.jcs:86)
at jrockit.reflect.NativeMethodInvoker.invoke0(Ljava.lang.Object;ILjava.lang.Object;[Ljava.lang.Object :wink: Ljava.lang.Object;(Unknown Source)
at jrockit.reflect.NativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object :wink: Ljava.lang.Object;(Unknown Source)
at jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object :wink: Ljava.lang.Object;(Unknown Source)
at java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;I)Ljava.lang.Object;(Unknown Source)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(Ljava.lang.Object;[Ljava.lang.Object :wink: Ljava.lang.Object;(DispMethod.java:371)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Ljava.lang.Object;Ljava.lang.String;Lcom.bea.wlw.runtime.core.dispatcher.DispMethod;[Ljava.lang.Object :wink: Ljava.lang.Object;(Invocable.java:423)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Lcom.bea.wlw.runtime.core.dispatcher.DispMethod;[Ljava.lang.Object :wink: Ljava.lang.Object;(Invocable.java:396)
at com.bea.wlw.runtime.core.container.Invocable.fireEvent(Lcom.bea.wlw.runtime.core.context.WlwThreadContext;Ljava.lang.String;Ljava.lang.Object;Ljava.lang.reflect.Method;[Ljava.lang.Object :wink: Ljava.lang.Object;(Invocable.java:612)
at com.bea.wlw.runtime.core.context.WlwThreadContext.sendEvent(Ljava.lang.reflect.Method;[Ljava.lang.Object :wink: Ljava.lang.Object;(WlwThreadContext.java:980)
at com.bea.wlw.runtime.core.context.WlwThreadContext.raiseEvent()Ljava.lang.Object;(WlwThreadContext.java:910)
at com.bea.wlw.runtime.core.container.Container.raiseContextEvent()Ljava.lang.Object;(Container.java:556)
at com.bea.wlw.runtime.jcs.container.JcsContainer.onRelease()V(JcsContainer.java:568)
at jrockit.reflect.NativeMethodInvoker.invoke0(Ljava.lang.Object;ILjava.lang.Object;[Ljava.lang.Object :wink: Ljava.lang.Object;(Unknown Source)
at jrockit.reflect.NativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object :wink: Ljava.lang.Object;(Unknown Source)
at jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object :wink: Ljava.lang.Object;(Unknown Source)
at java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;I)Ljava.lang.Object;(Unknown Source)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(Ljava.lang.Object;[Ljava.lang.Object :wink: Ljava.lang.Object;(DispMethod.java:371)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Ljava.lang.Object;Ljava.lang.String;Lcom.bea.wlw.runtime.core.dispatcher.DispMethod;[Ljava.lang.Object :wink: Ljava.lang.Object;(Invocable.java:423)
at com.bea.wlw.runtime.core.container.Invocable.sendContextEvent(Ljava.lang.String;[Ljava.lang.Object :wink: Ljava.lang.Object;(Invocable.java:533)
at com.bea.wlw.runtime.jcs.container.JcsContainer.sendContextEvent(Ljava.lang.String;[Ljava.lang.Object :wink: Ljava.lang.Object;(JcsContainer.java:512)
at com.bea.wlw.runtime.jcx.container.JcxContainer.postInvoke(Lcom.bea.wlw.runtime.core.context.WlwThreadContext;Lcom.bea.wlw.runtime.core.request.Request;Lcom.bea.wlw.runtime.core.dispatcher.InvokeResult :wink: Lcom.bea.wlw.runtime.core.dispatcher.InvokeResult;(JcxContainer.java:133)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Lcom.bea.wlw.runtime.core.request.Request :wink: Lcom.bea.wlw.runtime.core.dispatcher.InvokeResult;(Invocable.java:348)
at com.bea.wlw.runtime.jcs.container.JcsContainer.invoke(Lcom.bea.wlw.runtime.core.request.Request :wink: Lcom.bea.wlw.runtime.core.dispatcher.InvokeResult;(JcsContainer.java:85)
at com.bea.wlw.runtime.core.bean.BaseContainerBean.invokeBase(Lcom.bea.wlw.runtime.core.request.Request :wink: Lcom.bea.wlw.runtime.core.dispatcher.InvokeResult;(BaseContainerBean.java:224)
at com.bea.wlw.runtime.core.bean.SLSBContainerBean.invoke(Lcom.bea.wlw.runtime.core.request.Request :wink: Lcom.bea.wlw.runtime.core.dispatcher.InvokeResult;(SLSBContainerBean.java:103)
at com.bea.wlwgen.StatelessContainer_ly05hg_ELOImpl.invoke(Lcom.bea.wlw.runtime.core.request.Request :wink: Lcom.bea.wlw.runtime.core.dispatcher.InvokeResult;(StatelessContainer_ly05hg_ELOImpl.java:99)