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java.lang.NullPointerException on JBoss 6 M2
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created by <a href="http://community.jboss.org/people/ilangocal">ilango gurusamy</a> in <i>JBoss Messaging</i> - <a href="http://community.jboss.org/message/536677#536677">View the full discussion</a>
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<div class="jive-rendered-content"><p>I am trying to deploy 2 MDBs in a standalone XP machine running JBoss 6 M2. I am getting the following exceptions in my server.log</p><p>I do have a ejb-jar.xml but I gather I do not need one since I have EJB3, but I do have session beans that are from EJB 2.0.</p><p>I have configured an Mysql datasource and necessary queues in the appropriate xml files, but it is apparent I am not doing something right somewhere. How can I solve this problem? Any pointers in resolving this issue are appreciated. Thanks in advance.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The errors are below:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>2010-04-09 16:47:20,661 WARN  [org.jboss.resource.adapter.jms.inflow.JmsActivation] (pool-1-thread-3) Failure in jms activation org.jboss.resource.adapter.jms.inflow.JmsActivationSpec@40d447(ra=org.jboss.resource.adapter.jms.JmsResourceAdapter@967df destination=queue/jissuetrackerLog destinationType=null tx=true durable=false reconnect=10 provider=DefaultJMSProvider user=null maxMessages=1 minSession=1 maxSession=15 keepAlive=30000 useDLQ=true DLQHandler=org.jboss.resource.adapter.jms.inflow.dlq.GenericDLQHandler DLQJndiName=queue/DLQ DLQUser=null DLQMaxResent=10): java.lang.NullPointerException<br/>    at org.jboss.jms.client.container.ConnectionAspect.getConnectionState(ConnectionAspect.java:252)<br/>    at org.jboss.jms.client.container.ConnectionAspect.handleSetExceptionListener(ConnectionAspect.java:117)<br/>    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br/>    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)<br/>    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)<br/>    at java.lang.reflect.Method.invoke(Method.java:597)<br/>    at org.jboss.aop.advice.PerInstanceAdvice.invoke(PerInstanceAdvice.java:122)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.jms.client.container.ClosedInterceptor.invoke(ClosedInterceptor.java:170)<br/>    at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:86)<br/>    at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)<br/>    at org.jboss.jms.client.delegate.ClientConnectionDelegate.setExceptionListener(ClientConnectionDelegate.java)<br/>    at org.jboss.jms.client.JBossConnection.setExceptionListener(JBossConnection.java:116)<br/>    at org.jboss.resource.adapter.jms.inflow.dlq.AbstractDLQHandler.setupDLQConnection(AbstractDLQHandler.java:142)<br/>    at org.jboss.resource.adapter.jms.inflow.dlq.AbstractDLQHandler.setup(AbstractDLQHandler.java:83)<br/>    at org.jboss.resource.adapter.jms.inflow.dlq.JBossMQDLQHandler.setup(JBossMQDLQHandler.java:48)<br/>    at org.jboss.resource.adapter.jms.inflow.JmsActivation.setupDLQ(JmsActivation.java:414)<br/>    at org.jboss.resource.adapter.jms.inflow.JmsActivation.setup(JmsActivation.java:352)<br/>    at org.jboss.resource.adapter.jms.inflow.JmsActivation$SetupActivation.run(JmsActivation.java:730)<br/>    at org.jboss.resource.work.WorkWrapper.run(WorkWrapper.java:172)<br/>    at org.jboss.threads.SimpleDirectExecutor.execute(SimpleDirectExecutor.java:33)<br/>    at org.jboss.threads.QueueExecutor.runTask(QueueExecutor.java:780)<br/>    at org.jboss.threads.QueueExecutor.access$100(QueueExecutor.java:45)<br/>    at org.jboss.threads.QueueExecutor$Worker.run(QueueExecutor.java:800)<br/>    at java.lang.Thread.run(Thread.java:619)<br/>    at org.jboss.threads.JBossThread.run(JBossThread.java:122)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>---------------------------------------------------------------------------------------</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The following is the code of one of the MDBs. The other MDB's code is  similar.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>import javax.annotation.Resource;<br/>import javax.ejb.ActivationConfigProperty;<br/>import org.jboss.annotation.ejb.PoolClass;<br/>import org.jboss.ejb3.Container;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>@MessageDriven(mappedName="jLog", activationConfig = {<br/>        @ActivationConfigProperty(propertyName = "messagingType", propertyValue = "javax.jms.MessageListener"),<br/>        @ActivationConfigProperty(propertyName="destinationType", propertyValue="javax.jms.Queue"),<br/>        @ActivationConfigProperty(propertyName = "useJNDI", propertyValue = "true"),<br/>        @ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge"),<br/>        @ActivationConfigProperty (propertyName="maxMessages", propertyValue="10"),<br/>        @ActivationConfigProperty (propertyName="minSession", propertyValue="10"),<br/>        @ActivationConfigProperty (propertyName="maxSession", propertyValue="10"),<br/>        @ActivationConfigProperty (propertyName="destination", propertyValue="queue/jLog"),<br/>        @ActivationConfigProperty (propertyName="useDLQ", propertyValue="false")</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    })</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>public class LogConsumerBean implements MessageDrivenBean, MessageListener {</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public LogConsumerBean() {<br/>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public void setMessageDrivenContext(MessageDrivenContext mdc) {<br/>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public void ejbCreate() {<br/>    }<br/>    <br/>    public void ejbRemove() {<br/>    }</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>    public void onMessage(Message msg) {<br/>        ObjectMessage oMessage = (ObjectMessage) msg;<br/>        try {<br/>            Log log = (Log) oMessage.getObject();<br/>            LogServicesImpl logServicesImpl = new LogServicesImpl();<br/>            logServicesImpl.logSync(log);<br/>        } catch (Exception e) {<br/>            throw new RuntimeException(e);<br/>        }<br/>    }</p><p><br/>}</p></div>
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