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MQSeries.net Forum Index » General IBM MQ Support » java.lang.ClassCastException: javax.naming.Reference

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BhaskarGara
PostPosted: Thu Jul 21, 2005 12:31 pm    Post subject: java.lang.ClassCastException: javax.naming.Reference Reply with quote

Newbie

Joined: 21 Jul 2005
Posts: 8
Stack Trace:
com.ibm.adapters.protocol.exceptions.PAInitializationException: [Type: Fatal Error] [MsgID: 43031] [Mesg: JNDI Context:
Error in starting connection. Please check your classpath to make sure JNDI provider and JMS provider file enties are co
rrect and restart the connector. For an additional information, consult the linked exception.]
at com.ibm.adapters.protocol.PAJNDIContext.startConnection(PAJNDIContext.java:477)
at com.ibm.adapters.protocol.PAJNDIContext.initialize(PAJNDIContext.java:167)
at com.ibm.adapters.protocol.PAEngine.initJNDIContext(PAEngine.java:161)
at com.ibm.adapters.webservices.WSAEngine.adapterSpecificInit(WSAEngine.java:54)
at com.ibm.adapters.protocol.PAEngine.init(PAEngine.java:212)
at com.ibm.adapters.protocol.PAAgent.agentInit(PAAgent.java:357)
at com.crossworlds.cwconnectorapi.CWConnectorAgent.init(CWConnectorAgent.java:263)
at AppSide_Connector.BusObjJavaInterface.init(BusObjJavaInterface.java:494)
at AppSide_Connector.AppCalls.init(AppCalls.java:140)
at AppSide_Connector.AgentBusinessObjectManager.init(AgentBusinessObjectManager.java:815)
at AppSide_Connector.AgentBusinessObjectManager.<init>(AgentBusinessObjectManager.java:250)
at AppSide_Connector.AppEnd.run(AppEnd.java:1435)
at AppSide_Connector.AppEnd.init(AppEnd.java:362)
at AppSide_Connector.AppEnd.<init>(AppEnd.java:137)
at AppSide_Connector.AppEnd.main(AppEnd.java:1069)
at AppEndWrapper.main(AppEndWrapper.java:2

Linked Exception: javax.naming.Reference
Stack Trace:
java.lang.ClassCastException: javax.naming.Reference
at com.ibm.adapters.protocol.PAJNDIContext.startConnection(PAJNDIContext.java:456)
at com.ibm.adapters.protocol.PAJNDIContext.initialize(PAJNDIContext.java:167)
at com.ibm.adapters.protocol.PAEngine.initJNDIContext(PAEngine.java:161)
at com.ibm.adapters.webservices.WSAEngine.adapterSpecificInit(WSAEngine.java:54)
at com.ibm.adapters.protocol.PAEngine.init(PAEngine.java:212)
at com.ibm.adapters.protocol.PAAgent.agentInit(PAAgent.java:357)
at com.crossworlds.cwconnectorapi.CWConnectorAgent.init(CWConnectorAgent.java:263)
at AppSide_Connector.BusObjJavaInterface.init(BusObjJavaInterface.java:494)
at AppSide_Connector.AppCalls.init(AppCalls.java:140)
at AppSide_Connector.AgentBusinessObjectManager.init(AgentBusinessObjectManager.java:815)
at AppSide_Connector.AgentBusinessObjectManager.<init>(AgentBusinessObjectManager.java:250)
at AppSide_Connector.AppEnd.run(AppEnd.java:1435)
at AppSide_Connector.AppEnd.init(AppEnd.java:362)
at AppSide_Connector.AppEnd.<init>(AppEnd.java:137)
at AppSide_Connector.AppEnd.main(AppEnd.java:1069)
at AppEndWrapper.main(AppEndWrapper.java:2
.]

any suggestion....please
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fjb_saper
PostPosted: Thu Jul 21, 2005 12:35 pm    Post subject: Reply with quote

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
This is a ClassCastException.
When you retrieve your object from JNDI retrieve it as object.
Then write out to the log the reference used to access the object and the class name of the object retrieved...

Code:
Object obj = ctx.lookup("myobj");
if (obj==null) {
  logger.severe( "myobj is null ! !");
} else {
logger.info("myobj =" obj.getClass().getName());
}


This should get you one step further in analysing what is going wrong...

Enjoy
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