Need to login sharepoint portal and by pass window login screen using HttpClient of Apache

[Kanhaiya Singh]

I want to bypass window login screen and reach to welcome page by passing the window login screen of portal. The window login credentials I want to set through the httpclient class. I am trying to utilize below code provided by apache. The sample code what I am using is as below. When running this code I am getting status code as 401 everythime. I have also attached the screen which come when I click on the login link of my sharepoint portal. This screen I want to bypass and reach to the welcome page.

  package applet;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import org.apache.commons.httpclient.Credentials;
import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.NTCredentials;
import org.apache.commons.httpclient.UsernamePasswordCredentials;
import org.apache.commons.httpclient.auth.AuthScheme;
import org.apache.commons.httpclient.auth.AuthScope;
import org.apache.commons.httpclient.auth.CredentialsNotAvailableException;
import org.apache.commons.httpclient.auth.CredentialsProvider;
import org.apache.commons.httpclient.auth.NTLMScheme;
import org.apache.commons.httpclient.auth.RFC2617Scheme;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;


public class InteractiveAuthenticationExample {

	public InteractiveAuthenticationExample() {
		super();
	}

	public static void main(String[] args) throws Exception {

		InteractiveAuthenticationExample demo = 
			new InteractiveAuthenticationExample();

		demo.doDemo();
	}

	private void doDemo() throws IOException {


		HttpClient client = new HttpClient();
		
		client.getState().setCredentials(new AuthScope("www.test.com", 80,
				AuthScope.ANY_HOST), new NTCredentials("[e-mail]", "test1", "www.test.com", "test.com"));

		GetMethod httpget = new GetMethod("http://www.test.com/Page/Welcome.aspx");

		httpget.setDoAuthentication(true);



		try {

			httpget.setFollowRedirects(true);

			httpget.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler(3, false));  
			// execute the GET
			int status = client.executeMethod(httpget);



			System.out.println("status::::" + status);
			// print the status and response
			System.out.println(httpget.getStatusLine().toString());
			System.out.println(httpget.getResponseBodyAsString());

		} finally {

			// release any connection resources used by the method
			httpget.releaseConnection();
		}
	}

	public class ConsoleAuthPrompter implements CredentialsProvider {

		private BufferedReader in = null;
		public ConsoleAuthPrompter() {
			super();
			this.in = new BufferedReader(
					new InputStreamReader(System.in));
		}

		private String readConsole() throws IOException {
			return this.in.readLine();
		}

		public Credentials getCredentials(
				final AuthScheme authscheme,
				final String host,
				int port,
				boolean proxy)
		throws CredentialsNotAvailableException {

			if (authscheme == null) {
				return null;
			}

			try{

				if (authscheme instanceof NTLMScheme) {

					System.out.println(host + ":" + port + 
							" requires Windows authentication");

					System.out.print("Enter domain: ");
					String domain = readConsole();
					System.out.print("Enter username: ");
					String user = readConsole();
					System.out.print("Enter password: ");
					String password = readConsole();

					return new NTCredentials(user, password, host, domain);

				} else

					if (authscheme instanceof RFC2617Scheme) {

						System.out.println(host + ":" + port + 
								" requires authentication with the realm '"
								+ authscheme.getRealm() + "'");

						System.out.print("Enter username: ");
						String user = readConsole();
						System.out.print("Enter password: ");
						String password = readConsole();

						return new UsernamePasswordCredentials(
								user, password);

					} else {

						throw new CredentialsNotAvailableException(
								"Unsupported authentication scheme: " +
								authscheme.getSchemeName());
					}

			} catch (IOException e) {
				throw new CredentialsNotAvailableException(
						e.getMessage(), e);
			}
		}
	}
}  
  

Can any one you please help me in this regard.