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JMS Durable Subscriber message not picked from the Queue  RSS feed

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try {
ResourceProperties properties = ResourceProperties.getResourceInstance();
String initialContextUrl =  properties.getProperty("CONTEXT_URL");
String contextFactory =  "com.webmethods.jms.naming.WmJmsNamingCtxFactory";
String clientGroup="admin";

Properties env = new Properties();

env.setProperty(Context.INITIAL_CONTEXT_FACTORY, contextFactory);
env.setProperty(Context.PROVIDER_URL, initialContextUrl);
env.setProperty("com.webmethods.jms.clientIDSharing", "true");
env.setProperty("com.webmethods.jms.naming.clientgroup", clientGroup);
env.put(Context.SECURITY_PRINCIPAL, "user");
env.put(Context.SECURITY_CREDENTIALS, "12345");
Context context = new InitialDirContext(env);
    connectionFactory = (WmConnectionFactory) context.lookup(properties.getProperty("ConnectionFactory"));          
    System.setProperty("com.webmethods.jms.clientIDSharing", "true");
    connection = (Connection ) connectionFactory.createConnection("user","12345");
session = connection.createSession(false,Session.AUTO_ACKNOWLEDGE);

            // Create durable subscriber
             subscriber = session.createDurableSubscriber(subscriberTopicDest, "testDS");
   // subscriber = session.createConsumer(subscriberTopicDest);

                       if(subscriber != null){
   subscriber = null;
   System.out.println("JMS Subscriber Closed Successfully");

                        if(session != null){
System.out.println("JMS session Closed Successfully");
session = null;
if(connection != null){
System.out.println("JMS connection Closed Successfully");
connection = null;
}"JMS Update Deposit Limit Topic Created Successfully");
System.out.println("JMS Update Deposit Limit Topic Created Successfully");
} catch (Exception ex) {"JMS Update Deposit Limit Topic Creation Failed : "+ex.getMessage());
System.out.println("JMS Update Deposit Limit Topic Creation Failed : "+ex.getMessage());


The above code is written for subscribing the message from a Topic and the messages are piled up in the queue. The messages are read only the services are started up. Is there any connection became idle when there is no messages are available in the queue.
It is sorta covered in the JavaRanch Style Guide.
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