Hi,
I am new to JMX and here is what I want to achieve.
I want to know the depth of a JMS queue which is existing on JBoss called "testQueue".
Please note that I am able to send messages to this queue using my JMS application.
Now, to find out this depth I want to access "QueueDepth" attribute of the "testQueue"
MBean. Here is how my client code looks like:
==========
Hashtable prop = new Hashtable();
prop.put(Context.INITIAL_CONTEXT_FACTORY,
"org.jboss.naming.NamingContextFactory");
prop.put(Context.PROVIDER_URL, "jnp://localhost:1099");
Context c = new InitialContext(prop);
RMIAdaptor a = (RMIAdaptor)c.lookup("jmx/rmi/RMIAdaptor");
MBeanServer mbeanServer = new RMIConnectorImpl(a);
ObjectName objName = new ObjectName("jboss.mq.destination" ,
"Queue" , "testQueue");
Object depthObj = mbeanServer.getAttribute(objName,
"MessageCounter");
System.out.println("The depth of queue is: " +
((Integer)depthObj).intValue());
=============
When I run it, it gives me the following error:
=======
javax.management.InstanceNotFoundException: jboss.mq.destination:Queue=testQueue is
not registered.
at
org.jboss.mx.server.registry.BasicMBeanRegistry.get(BasicMBeanRegistry.java:354)
at org.jboss.mx.server.MBeanServerImpl.getAttribute(MBeanServerImpl.java:442)
==========
Please note that I am able to view this queue using JMX console and as I have already
mentiuoned that I am able to send messages to this queue. The JMX console shows the
following values for this queue:
Domain jboss.mq.destination
service Queue
name testQueue
Any clue what am I doing wrong? Please treat this as urgent.
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