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From "Aman Nanner (JIRA)" <j...@apache.org>
Subject [jira] Created: (GERONIMO-3444) EJBContext
Date Mon, 27 Aug 2007 21:03:31 GMT
EJBContext
----------

                 Key: GERONIMO-3444
                 URL: https://issues.apache.org/jira/browse/GERONIMO-3444
             Project: Geronimo
          Issue Type: Bug
      Security Level: public (Regular issues)
          Components: OpenEJB
    Affects Versions: 2.0.x
         Environment: Windows XP SP2
            Reporter: Aman Nanner
             Fix For: 2.0.x, 2.1


During the initial running of our J2EE application, the following error inconsistently occurs:

{panel:title="Stack Trace"}
16:49:57,268 ERROR [OpenEJB] The bean instance null threw a system exception:javax.naming.NameAlreadyBoundException:
EJBContext
javax.naming.NameAlreadyBoundException: EJBContext
	at org.apache.xbean.naming.context.WritableContext.addBinding(WritableContext.java:91)
	at org.apache.xbean.naming.context.WritableContext$NestedWritableContext.addBinding(WritableContext.java:235)
	at org.apache.xbean.naming.context.AbstractContext.addBinding(AbstractContext.java:320)
	at org.apache.xbean.naming.context.AbstractContext.addDeepBinding(AbstractContext.java:240)
	at org.apache.xbean.naming.context.AbstractContext.bind(AbstractContext.java:652)
	at org.apache.xbean.naming.context.AbstractContext.bind(AbstractContext.java:643)
	at org.apache.openejb.core.stateless.StatelessInstanceManager.getInstance(StatelessInstanceManager.java:111)
	at org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:156)
	at org.apache.openejb.core.ivm.EjbObjectProxyHandler.businessMethod(EjbObjectProxyHandler.java:211)
	at org.apache.openejb.core.ivm.EjbObjectProxyHandler._invoke(EjbObjectProxyHandler.java:65)
	at org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:320)
	at org.apache.openejb.util.proxy.Jdk13InvocationHandler.invoke(Jdk13InvocationHandler.java:49)
	at $Proxy164.executeUpdate(Unknown Source)
	at com.mxi.mx.common.ejb.job.StaleJobResetJobBean.processMessage(StaleJobResetJobBean.java:79)
	at com.mxi.mx.common.ejb.job.MxMessageDrivenBean.onMessage(MxMessageDrivenBean.java:135)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:146)
	at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:129)
	at org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:67)
	at org.apache.openejb.core.mdb.MdbContainer._invoke(MdbContainer.java:332)
	at org.apache.openejb.core.mdb.MdbContainer.invoke(MdbContainer.java:304)
	at org.apache.openejb.core.mdb.EndpointHandler.deliverMessage(EndpointHandler.java:229)
	at org.apache.openejb.core.mdb.EndpointHandler.invoke(EndpointHandler.java:170)
	at $Proxy163.onMessage(Unknown Source)
	at org.apache.activemq.ra.MessageEndpointProxy$MessageEndpointAlive.onMessage(MessageEndpointProxy.java:121)
	at org.apache.activemq.ra.MessageEndpointProxy.onMessage(MessageEndpointProxy.java:61)
	at org.apache.activemq.ActiveMQSession.run(ActiveMQSession.java:696)
	at org.apache.activemq.ra.ServerSessionImpl.run(ServerSessionImpl.java:165)
	at org.apache.geronimo.connector.work.WorkerContext.run(WorkerContext.java:290)
	at org.apache.geronimo.connector.work.pool.NamedRunnable.run(NamedRunnable.java:32)
	at org.apache.geronimo.pool.ThreadPool$1.run(ThreadPool.java:201)
	at org.apache.geronimo.pool.ThreadPool$ContextClassLoaderRunnable.run(ThreadPool.java:331)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
	at java.lang.Thread.run(Thread.java:595)
16:49:57,284 ERROR [MxMessageDrivenBean] Error executing stale job reset job
javax.ejb.EJBException: Cannot obtain a free instance.; nested exception is: 
	javax.naming.NameAlreadyBoundException: EJBContext
	at org.apache.openejb.core.ivm.BaseEjbProxyHandler.convertException(BaseEjbProxyHandler.java:365)
	at org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:322)
	at org.apache.openejb.util.proxy.Jdk13InvocationHandler.invoke(Jdk13InvocationHandler.java:49)
	at $Proxy164.executeUpdate(Unknown Source)
	at com.mxi.mx.common.ejb.job.StaleJobResetJobBean.processMessage(StaleJobResetJobBean.java:79)
	at com.mxi.mx.common.ejb.job.MxMessageDrivenBean.onMessage(MxMessageDrivenBean.java:135)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.apache.openejb.core.interceptor.ReflectionInvocationContext$Invocation.invoke(ReflectionInvocationContext.java:146)
	at org.apache.openejb.core.interceptor.ReflectionInvocationContext.proceed(ReflectionInvocationContext.java:129)
	at org.apache.openejb.core.interceptor.InterceptorStack.invoke(InterceptorStack.java:67)
	at org.apache.openejb.core.mdb.MdbContainer._invoke(MdbContainer.java:332)
	at org.apache.openejb.core.mdb.MdbContainer.invoke(MdbContainer.java:304)
	at org.apache.openejb.core.mdb.EndpointHandler.deliverMessage(EndpointHandler.java:229)
	at org.apache.openejb.core.mdb.EndpointHandler.invoke(EndpointHandler.java:170)
	at $Proxy163.onMessage(Unknown Source)
	at org.apache.activemq.ra.MessageEndpointProxy$MessageEndpointAlive.onMessage(MessageEndpointProxy.java:121)
	at org.apache.activemq.ra.MessageEndpointProxy.onMessage(MessageEndpointProxy.java:61)
	at org.apache.activemq.ActiveMQSession.run(ActiveMQSession.java:696)
	at org.apache.activemq.ra.ServerSessionImpl.run(ServerSessionImpl.java:165)
	at org.apache.geronimo.connector.work.WorkerContext.run(WorkerContext.java:290)
	at org.apache.geronimo.connector.work.pool.NamedRunnable.run(NamedRunnable.java:32)
	at org.apache.geronimo.pool.ThreadPool$1.run(ThreadPool.java:201)
	at org.apache.geronimo.pool.ThreadPool$ContextClassLoaderRunnable.run(ThreadPool.java:331)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
	at java.lang.Thread.run(Thread.java:595)
Caused by: javax.naming.NameAlreadyBoundException: EJBContext
	at org.apache.xbean.naming.context.WritableContext.addBinding(WritableContext.java:91)
	at org.apache.xbean.naming.context.WritableContext$NestedWritableContext.addBinding(WritableContext.java:235)
	at org.apache.xbean.naming.context.AbstractContext.addBinding(AbstractContext.java:320)
	at org.apache.xbean.naming.context.AbstractContext.addDeepBinding(AbstractContext.java:240)
	at org.apache.xbean.naming.context.AbstractContext.bind(AbstractContext.java:652)
	at org.apache.xbean.naming.context.AbstractContext.bind(AbstractContext.java:643)
	at org.apache.openejb.core.stateless.StatelessInstanceManager.getInstance(StatelessInstanceManager.java:111)
	at org.apache.openejb.core.stateless.StatelessContainer.invoke(StatelessContainer.java:156)
	at org.apache.openejb.core.ivm.EjbObjectProxyHandler.businessMethod(EjbObjectProxyHandler.java:211)
	at org.apache.openejb.core.ivm.EjbObjectProxyHandler._invoke(EjbObjectProxyHandler.java:65)
	at org.apache.openejb.core.ivm.BaseEjbProxyHandler.invoke(BaseEjbProxyHandler.java:320)
	... 27 more
{panel}

This error occurs only some of the time, which leads me to believe there is a threading issue
here.  Specifically, looking at the following code fragment in {{org.apache.openejb.core.stateless.StatelessInstanceManager.getInstance(StatelessInstanceManager.java:111)}}:

{code}
                Context ctx = deploymentInfo.getJndiEnc();                
                SessionContext sessionContext;
                try {
                    sessionContext = (SessionContext) ctx.lookup("java:comp/EJBContext");
                } catch (NamingException e1) {
                    sessionContext = createSessionContext();
                    // TODO: This should work
                    ctx.bind("java:comp/EJBContext", sessionContext);
                }   
{code}
It could be perhaps that the "java:/comp/EJBContext" is not initially found, but another thread
creates it by the time it is attempted to be bound in the last line.  Unfortunately, I do
not have a reproducible test case at the current time.

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