List<NameValuePair> nvps = new ArrayList<NameValuePair>();
nvps.add(new BasicNameValuePair("username", username));
nvps.add(new BasicNameValuePair("password", password));
HttpPost method = new HttpPost(builder.toURI());
method.setEntity(new UrlEncodedFormEntity(nvps, Consts.UTF_8));
ResponseHandler<String> handler = new BasicResponseHandler();
getDc().getHttpClient().execute(method, handler);
}