Test class for Smack thread leak

gistfile1.java

package smacktest;

import java.io.IOException;

import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.SmackException;
import org.jivesoftware.smack.SmackException.NotConnectedException;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.ConnectionConfiguration.SecurityMode;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.tcp.XMPPTCPConnection;


public class SmackTest {	
	public static void main(String[] args) throws SmackException, IOException, XMPPException, InterruptedException{
		//Connect and login
		XMPPConnection connection = connect(
			"service.vrijhof.com", 5222, "smacktest", "smacktest", "test_resource");		
		
		//Sleep
		Thread.sleep(2000);
		
		//Disconnect and cleanup
		disconnect(connection);
		
		/**
		 * At this point, the app should automatically and gracefully quit 
		 */
	}
	
	private static XMPPConnection connect(String host, int port, String username, String password, String resource) throws SmackException, IOException, XMPPException{
		System.out.println("Connecting...");
		
		//Configure
		ConnectionConfiguration config = new ConnectionConfiguration(
			host, port);		
		config.setCompressionEnabled(true);
		config.setReconnectionAllowed(true);
		config.setSecurityMode(SecurityMode.required);	
		
		//Create connection
		XMPPConnection connection = new XMPPTCPConnection(config);
		
		//Connect
		connection.connect();
		
		//Login user
		connection.login(username, password, resource);
		
		System.out.println("Connected!");
		
		return connection;
	}
	
	private static void disconnect(XMPPConnection connection) throws NotConnectedException{
		System.out.println("Disconnecting...");
		connection.disconnect();
		connection = null;
		System.gc();
		System.out.println("Disconnected!");
	}
}