Jabber client that connects to GTalk and sends a message

JabberClient.java

package com.dunithd.jabber;

import org.jivesoftware.smack.*;
import org.jivesoftware.smack.packet.Message;

import java.util.Collection;

public class JabberClient {

    public static void main(String[] args) {
        SASLAuthentication.supportSASLMechanism("PLAIN");
        ConnectionConfiguration config = new ConnectionConfiguration("talk.google.com", 5222,"gmail.com");
        config.setSASLAuthenticationEnabled(false);

        XMPPConnection connection = new XMPPConnection(config);
        try {
            connection.connect();
            connection.login("dunithd", "123456");
            
            System.out.println("Logged in to Jabber...");
            /*Roster roster = connection.getRoster();
            Collection<RosterEntry> entries = roster.getEntries();
            for (RosterEntry entry : entries) {
                System.out.println(entry.getUser());
            }  */
            Message msg = new Message("[email protected]", Message.Type.chat);
            msg.setBody("Hi! this is a test message sent from my chatbot. Please ignore this. - Dunith Dhanushka");
            connection.sendPacket(msg);

            System.out.println("Message sent!");
        } catch (XMPPException e) {
            e.printStackTrace();
        }
        connection.disconnect();
        System.out.println("Disconnected from Jabbber...");
    }
}