i need to know the delivery-state from the subscripter(s) of a queue.

 MBeanServer server = MBeanServerLocator.locateJBoss();
 MBeanInfo mbi = server.getMBeanInfo(new ObjectName(objectName));
 java.util.List list = (java.util.List)server.invoke(new ObjectName(objectName), "listReceivers", new Object[] {}, null);
 Iterator iter = list.iterator();
 while (iter.hasNext()) {
 System.err.println(iter.next().toString()); //test
 }

.toString-Output (org.jboss.mq.Subscription):

[Subscription[subId=-2147483648connection=ConnectionToken:ID:85/2a633b8cbbebd8bad96e79df034dc070 destination=QUEUE.eManager-docImportQueue messageSelector=MessageFormat = 'Version 3.4' Local Create]]
...

question: how can i "get" the delivery-state with this informations?

at the moment, i access the jmscontainerinvokermbean with the objectname (but i need a more generic solution).

 MBeanServer server = MBeanServerLocator.locateJBoss();
 ObjectName objectName = new ObjectName(objectnameofthequeuesubscripter);
 active = server.invoke(objectName, "getDeliveryActive", new Object[] {}, null);

thank you for any hints
marc