JMS::Websphere6.1::Problem with context lookup the Queue

[Sujoy Choudhury]

Hi,

I have a class which tries to look up a Queue/QueueConnectionFactory and then submits message.
The code works fine with Weblogic9.x but throws the following exception in Webshpere6.1.
com.ibm.mq.jms.MQQueue incompatible with javax.jms.Queue

Code:

		// get the initial context
		InitialContext ctx = new InitialContext();
		
		QueueConnectionFactory connFactory = null;
		Queue queue = null;
		queue = (Queue) ctx.lookup(queueName); //Throws exception at this point...
		// Rest of the code
		connFactory = (QueueConnectionFactory) ctx.lookup(queueConnFactoryName);
		// create a queue connection
		QueueConnection queueConn = connFactory.createQueueConnection();
		// create a queue session
		QueueSession queueSession = queueConn.createQueueSession(transacted, acknowledgeMode);
		// create a queue sender
		QueueSender queueSender = queueSession.createSender(queue);
		queueSender.setDeliveryMode(deliveryMode);
		
		/*********************************************************************/
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
		
		DocumentBuilder builder = factory.newDocumentBuilder();
		
		TextMessage message;
		message = queueSession.createTextMessage(argMesg);

		/*********************************************************************/
		// send the message
		queueSender.send(message);
		// close the queue connection
		queueConn.close();
		

Any help would be appreciated.

[sujeetkumar singh]

Can you provide me full error, which you are getting..

[Ankit Thakkar]

Ideally this code should work without any exception, because com.ibm.mq.jms.MQQueue implements javax.jms.Queue. please share full exception stack trace.

Thanks,
Ankit

[Sujoy Choudhury]

I found the reason by opening a PMR with IBM.

Reason: If a .jar file contains a Java Extension class (javax.*.class) file which is also provided by WebSphere, then it must not be included in your Shared Library or application, or else a ClassCastException or similar error will occur. If the javax.*.class is NOT provided by WebSphere Application Server, then feel free to use that .jar in your application or Shared Library.