HttpClient API CODE--To acess mail

Hi
I am new to this forum.
I am using commons HttpClient API to access my gmail account.But whenever i execute the code i get only the html source of the corresponding(login page) page as output. I am not able to login into gmail.
The code which i use is given below.Please suggest any changes or different code to pass credentials .



import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.auth.AuthScope;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;

/**
* A simple example that uses HttpClient to perform a GET using Basic
* Authentication. Can be run standalone without parameters.
*
* You need to have JSSE on your classpath for JDK prior to 1.4
*

*/
public class HttpClientBasicAuth {

/**
* Constructor for BasicAuthenticatonExample.
*/
public HttpClientBasicAuth() {
super();
}

public static void main(String[] args) throws Exception {
HttpClient client = new HttpClient();


// pass our credentials to HttpClient, they will only be used for
// authenticating to servers with realm "realm" on the host
// "www.verisign.com", to authenticate against
// an arbitrary realm or host change the appropriate argument to null.
client.getState().setCredentials(
new AuthScope("http://www.gmail.com", 443, null),
new UsernamePasswordCredentials("XXXXXXX", "YYYYYYY")
);

PostMethod post = new PostMethod("http://www.gmail.com");
//post.addParameter("action", "../cgi-bin/webcm");
//post.addParameter("target", "_self");
//post.addParameter("getpage", "../html/menus/menu1.html");
post.addParameter("USERNAME", "XXXXXXX ");
post.addParameter("PASSWORD", "YYYYYYY");
//post.addParameter("Login","Login");

// create a GET method that reads a file over HTTPS, we're assuming
// that this file requires basic authentication using the realm above.
GetMethod get1 = new GetMethod("http://www.gmail.com");
GetMethod get2 = new GetMethod("http://www.gmail.com");

// Tell the GET method to automatically handle authentication. The
// method will use any appropriate credentials to handle basic
// authentication requests. Setting this value to false will cause
// any request for authentication to return with a status of 401.
// It will then be up to the client to handle the authentication.
get1.setDoAuthentication( true );

try {
client.executeMethod(get1);
if (get1.getStatusCode() == HttpStatus.SC_OK) {
System.out.println(get1.getResponseBodyAsString());
} else {
System.out.println("Unexpected failure get1: " + get1.getStatusLine().toString());
return;
}
get1.releaseConnection();

// execute the POST
client.executeMethod(post);
if (post.getStatusCode() == HttpStatus.SC_OK) {
System.out.println(post.getResponseBodyAsString());

} else {
System.out.println("Unexpected failure post: " + post.getStatusLine());
return;
}
post.releaseConnection();

// execute the GET
// int status = client.executeMethod( get2 );

// print the status and response
// System.out.println(status + "\n" + get2.getResponseBodyAsString());

} finally {
// release any connection resources used by the method
get1.releaseConnection();
}
}
}