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| MQThread.run error |
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Message
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| rita |
 Posted: Sun Jan 27, 2002 11:37 pm Post subject: |
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Novice
Joined: 31 Dec 2001
Posts: 17
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hi
I am getting this error when running a jms app which puts a message into the queue.
Uncaught exception (java.lang.UnknownError: )
MQThread.run()
this=(com.ibm.mq.server.MQThread) Thread[Thread-2,5,main]
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| kolban |
| Posted: Mon Jan 28, 2002 8:23 am Post subject: |
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Grand Master
Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA
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| Do you have any additional information? Perhaps an exception backtrace? By any chance are you using the JMS objects in a thread other than the thread in which they were created? |
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| rita |
| Posted: Mon Jan 28, 2002 9:49 am Post subject: |
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Novice
Joined: 31 Dec 2001
Posts: 17
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this is the program which is bugging me ....
..............................................................................
QueueConnectionFactory connectionFactory= null;
QueueConnection connection=null;
QueueSession testSession =null;
Queue testQueue;
InitialDirContext ctx = null;
try{
java.util.Hashtable env = new java.util.Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,
"com.ibm.ejs.ns.jndi.CNInitialContextFactory");
env.put(Context.PROVIDER_URL,"iiop://url");
ctx = new InitialContext(env);
connectionFactory = (QueueConnectionFactory)ctx.lookup("testQCF");
}
catch(NamingException e)
{
System.err.println("Error during lookup of Connection Factory " + e.getMessage());
}
catch(JMSException jmsException) { System.err.println("Error from JMS " + jmsException.getMessage());}
catch(java.lang.Exception ex) { System.err.println("Error from Java " + ex.getMessage());}
try {
//queue connection
connection = connectionFactory.createQueueConnection();
testSession = connection.createQueueSession(false,Session.AUTO_ACKNOWLEDGE);
testQueue= (Queue)ctx.lookup("testQ");
QueueSender testSender = testSession.createSender(testQueue);
TextMessage myMessage = testSession.createTextMessage();
myMessage.setText("MQSeries");
testSender.send(myMessage); ( *** this is where i am getting error***)
testSender.close();
testSession.close();
connection.close();
ctx.close();
}
catch (JMSException e)
{
.............
It runs fine 1st time without any error, but when i run it 2nd time ..its throwing error.
The error is coming up after executing the line testSender.send(myMessage). it is able to put message in the queue, but still shows the error....
how to solve this ? |
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| kolban |
| Posted: Mon Jan 28, 2002 11:05 am Post subject: |
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Grand Master
Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA
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Can you catch all exceptions ... something like:
| Code: |
catch (Exception e)
{
System.out.println("Exception: " + e.toString());
printStackTrace();
}
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and post the results. What environment is your application executing within? Stand-alone Java app, applet, inside an application server, part of an EJB, part of a Servlet etc etc |
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| rita |
| Posted: Mon Jan 28, 2002 12:02 pm Post subject: |
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Novice
Joined: 31 Dec 2001
Posts: 17
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hi kolban
even if i put any catch block, its not able to catch it.directly shows up the error on to the visualage debugger.
environment is winnt for both mq and application. its a simple stand alone application.
you can check this problem with running mqsyncjms.java in the software repository of this site. |
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