FULL PRODUCT VERSION :
java version "1.7.0_03"
Java(TM) SE Runtime Environment (build 1.7.0_03-b04)
Java HotSpot(TM) 64-Bit Server VM (build 22.1-b02, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux cde 2.6.18-238.19.1.el5.centos.plus #1 SMP Mon Jul 18 10:05:09 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux

A DESCRIPTION OF THE PROBLEM :
I can't authenticate with NTLM server. Same code does work in java 1.6, but isn't running in java 1.7.
When I try "conn.getInputStream()" i receive this error:
java.net.ProtocolException: Server redirected too many  times (20)

REGRESSION.  Last worked in version 6u29

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Try running provided simple code against the NTML server.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
You shold receive the requested url.
ACTUAL -
There were no result, only ProtocolException.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
Exception in thread "main" java.net.ProtocolException: Server redirected too many  times (20)
	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1622)
	at ntlm.Main.getAuthenticatedResponse(Main.java:55)
	at ntlm.Main.main(Main.java:30)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package ntlm;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.Authenticator;
import java.net.HttpURLConnection;
import java.net.PasswordAuthentication;
import java.net.URL;

public class Main {

    	public static void main(String[] args) throws Exception
        {
            String urlStr = "http://put_here_ntlm_server_address";
            String domain = "SIMPLE_DOMAIN";
            String userName = "SIMPLE_USERNAME";
            String password = "SIMPLE_PASSWORD";

            String responseText = getAuthenticatedResponse(urlStr, domain, userName, password);

            System.out.println("response: " + responseText);
	}

	private static String getAuthenticatedResponse(final String urlStr, final String domain, final String userName, final String password) throws IOException
        {
	    StringBuilder response = new StringBuilder();

            Authenticator.setDefault(new Authenticator() {
	        @Override
	        public PasswordAuthentication getPasswordAuthentication() {
	            return new PasswordAuthentication(domain + "\\" + userName, password.toCharArray());
	        }
	    });

	    URL urlRequest = new URL(urlStr);
	    HttpURLConnection conn = (HttpURLConnection) urlRequest.openConnection();
            conn.setInstanceFollowRedirects(true);
            conn.setAllowUserInteraction(true);
	    conn.setDoOutput(true);
	    conn.setDoInput(true);
	    conn.setRequestMethod("GET");

	    InputStream stream = conn.getInputStream();
	    BufferedReader in = new BufferedReader(new InputStreamReader(stream));
	    String str = "";
	    while ((str = in.readLine()) != null) {
	        response.append(str);
	    }
	    in.close();

	    return response.toString();
	}
}

---------- END SOURCE ----------