Problem with JCIFS NTLM Authentication for HTTP Connections

Hi,

I'm facing 2 problems using the JCIFS NTLM Authentication for HTTP
Connections.  

1) The authentication is only successful when login and password are
sent in the url. Setting domain, username and password
   as 
        Config.setProperty("jcifs.smb.client.domain", domain);
        Config.setProperty("jcifs.smb.client.username", user);
        Config.setProperty("jcifs.smb.client.password", password);
   has not worked.  What is the different between the two ways?
   
2) The authentication and authorization seem to work fine if user is
authorized to access the servlet. 
   As login.jsp is defined to be the login config form, I would expect
that login.jsp would be returned 
   in case user is not authorized (This has worked without
NtlmHttpFilter). Instead, I got an exception.   
   The code looks as followed:
   
   HttpURLConnection connection = (HttpURLConnection)u.openConnection();
   connection.setDoOutput(true);
   connection.setRequestProperty("Cookie", cookie);
   connection.setRequestProperty("COOKIE", cookie);
   OutputStream out = connection.getOutputStream();
   out.write(webToolRequest.toXml().getBytes());
   int i;
   InputStream in = connection.getInputStream();
   
   The last statement throw the exception:   

   java.lang.ClassCastException at
jcifs.http.NtlmHttpURLConnection.reconnect(NtlmHttpURLConnection.java:58
1)
   at
jcifs.http.NtlmHttpURLConnection.attemptNegotiation(NtlmHttpURLConnectio
n.java:527)
   at
jcifs.http.NtlmHttpURLConnection.doHandshake(NtlmHttpURLConnection.java:
440)
   at
jcifs.http.NtlmHttpURLConnection.handshake(NtlmHttpURLConnection.java:10
3)
   at
jcifs.http.NtlmHttpURLConnection.getResponseCode(NtlmHttpURLConnection.j
ava:393)
   at
com.hp.eis.eib.tools.servletcaller.WebToolServletCaller.callServlet(WebT
oolServletCaller.java:196)
   
   Thanks a lot for your help
   
   My Chi Doan