facebook login using java

DefaultHttpClient httpclient = new DefaultHttpClient();
    httpclient.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler());
    HttpGet httpget = new HttpGet("https://developers.facebook.com/docs/reference/api/examples/");
    HttpResponse response = httpclient.execute(httpget);
    HttpEntity entity = response.getEntity();
    if (entity != null) {
        entity.consumeContent();
    }
    List cookies = httpclient.getCookieStore().getCookies();
    HttpPost httpost = new HttpPost(
    "https://www.facebook.com/login.php?login_attempt=1");
    List nvps = new ArrayList();
    nvps.add(new BasicNameValuePair("email", "xxxxxxxxxxxxxx"));
    nvps.add(new BasicNameValuePair("pass", "ssssssss"));
    httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));
    response = httpclient.execute(httpost);
    entity = response.getEntity();
    if (entity != null) {
        entity.consumeContent();
    }
    CookieStore cookiestrore = httpclient.getCookieStore();
    //cookies = httpclient.getCookieStore().getCookies();
    //httpclient.getConnectionManager().shutdown();
    return cookiestrore;