[jboss-user] [Messaging, JMS & JBossMQ] - javax.ejb.EJBException: Could not instantiate bean
Hi
I'm attempting to use my first MDB. My code and deployment descriptors are based on
examples 6.6 to 6.9 in The JBoss 4 Application Server Guide. I'm running jboss 4.0.2
/ MySQL.
The problem: my sender sends the message okay (confirmed by querying MySQL) but the
message driven bean causes:
| 15:19:40,563 ERROR [LogInterceptor] TransactionRolledbackLocalException in method:
public abstract void javax.jms.MessageListener.onMessage(javax.jms.Message), causedBy:
| javax.ejb.EJBException: Could not instantiate bean
| at
org.jboss.ejb.plugins.AbstractInstancePool.get(AbstractInstancePool.java:180)
| at
org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:67)
| at
org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:48)
| at
org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:105)
| at
org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:335)
| at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:166)
| at
org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:94)
| at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:192)
| at
org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
| at
org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:389)
| at org.jboss.ejb.Container.invoke(Container.java:873)
| at
org.jboss.ejb.plugins.jms.JMSContainerInvoker.invoke(JMSContainerInvoker.java:1090)
| at
org.jboss.ejb.plugins.jms.JMSContainerInvoker$MessageListenerImpl.onMessage(JMSContainerInvoker.java:1392)
| at org.jboss.jms.asf.StdServerSession.onMessage(StdServerSession.java:256)
| at
org.jboss.mq.SpyMessageConsumer.sessionConsumerProcessMessage(SpyMessageConsumer.java:904)
| at org.jboss.mq.SpyMessageConsumer.addMessage(SpyMessageConsumer.java:160)
| at org.jboss.mq.SpySession.run(SpySession.java:333)
| at org.jboss.jms.asf.StdServerSession.run(StdServerSession.java:180)
| at
EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:743)
| at java.lang.Thread.run(Thread.java:613)
| 15:19:40,572 ERROR [JMSContainerInvoker] Exception in JMSCI message listener
| javax.ejb.TransactionRolledbackLocalException: Could not instantiate bean;
CausedByException is:
| Could not instantiate bean
| ...
|
The jboss.xml entry (generated by XDoclet) looks like:
| <message-driven>
| <ejb-name>DispatchAgent</ejb-name>
| <destination-jndi-name>queue/B</destination-jndi-name>
| <resource-ref>
| <res-ref-name>jms/QCF</res-ref-name>
| <jndi-name>ConnectionFactory</jndi-name>
| </resource-ref>
| </message-driven>
|
The ejb-jar.xml entry looks like:
| <message-driven >
| <description><![CDATA[Product Dispatcher]]></description>
| <ejb-name>DispatchAgent</ejb-name>
|
<ejb-class>biz.classcalendar.core.agent.dispatch.DispatchAgent</ejb-class>
| <transaction-type>Container</transaction-type>
| <acknowledge-mode>AUTO_ACKNOWLEDGE</acknowledge-mode>
| <message-driven-destination>
| <destination-type>javax.jms.Queue</destination-type>
| </message-driven-destination>
| <resource-ref >
| <res-ref-name>jms/QCF</res-ref-name>
| <res-type>javax.jms.QueueConnectionFactory</res-type>
| <res-auth>Container</res-auth>
| </resource-ref>
| </message-driven>
|
I'm stuck, because the log contains no debugging information that's useful to me,
given my (lack of) knowledge of the jboss code.
Is this a authentication issue?
Please help!
Bruno.
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