to publish a object msg it takes 0.5sec

Hi
I am using open JMS
I had checked the time difference in the execution of the publishing a
msg it took around 500 milli seconds. is there any way to reduce it,
or any other suggestion
plzz help
thnx Vel Pandian

here is the following code just copy paste and run it works as the msg
consumer and producer

import java.util.Hashtable;
import javax.jms.*;
import javax.naming.*;

public class MessageSink implements MessageListener
{
    private TopicConnection topicConnection;
    private TopicSession topicSession;
    private Topic topic;
    static private TopicSubscriber topicSubscriber;
    //static private Logger myLogger;
    TopicPublisher  topicPublisher;

    MessageSink()
    {
        try
        {
            // create a JNDI context
            Hashtable properties = new Hashtable();
            properties.put(Context.INITIAL_CONTEXT_FACTORY,
                    "org.exolab.jms.jndi.InitialContextFactory");
            properties.put(Context.PROVIDER_URL, "rmi://localhost:1099/");
            //properties.put(Context.PROVIDER_URL, "tcp://localhost:3035/");

            Context context = new InitialContext(properties);
            // retrieve topic connection factory
            TopicConnectionFactory topicConnectionFactory =
(TopicConnectionFactory) context
                    .lookup("JmsTopicConnectionFactory");
            // create a queue connection
            topicConnection = topicConnectionFactory.createTopicConnection();
            // create a topic session
            // set transactions to false and set auto acknowledgement
of receipt of messages
            topicSession = topicConnection.createTopicSession(false,
Session.AUTO_ACKNOWLEDGE);
            // retrieve queue
            topic = (Topic) context.lookup("topic1");
            // create a queue recevier and associate to the retrieved queue
            topicSubscriber = topicSession.createSubscriber(topic);

            topicPublisher = topicSession.createPublisher(topic);

            // associate message listener
            topicSubscriber.setMessageListener(this);
            // start delivery of incoming messages
            topicConnection.start();
        } catch (NamingException e)
        {
            e.printStackTrace();
        } catch (JMSException e)
        {
            e.printStackTrace();
        }
    }

    public static void main(String[] args)
    {
            MessageSink messageSink = new MessageSink();
            long startTime = System.currentTimeMillis();
            messageSink.publish();
            System.out.println("Total time take " +
(System.currentTimeMillis() - startTime));
    }

    public void publish()
    {
            System.out.println("listening");
            try {
              long startTime = System.currentTimeMillis();
              ObjectMessage msg = topicSession.createObjectMessage();
              System.out.println("time for creating objectmessage " +
(System.currentTimeMillis() - startTime));
              msg.setObject("vel pandian");
              startTime = System.currentTimeMillis();
              topicPublisher.publish(msg);
              System.out.println("topicPublisher " +
(System.currentTimeMillis() - startTime));
            } catch(Exception e) {
                e.printStackTrace();
            }
    }
    // process incoming queue messages
    public void onMessage(Message message)
    {
        System.out.println("onMessage Called .... ");
        try
        {
            String messageText = null;
            if (message instanceof ObjectMessage)
            {
                ObjectMessage objectMessage = (ObjectMessage) message;
                System.out.println(objectMessage.getObject());
            }
        } catch (JMSException e)
        {
            e.printStackTrace();
        }
    }
}


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