NtlmPasswordAuthentication ntlm;

        if ((ntlm = negotiate( req, resp, false )) == null) {
            return;
        }

        chain.doFilter( new NtlmHttpServletRequest( req, ntlm ), response );
    }

    /**
     * Negotiate password hashes with MSIE clients using NTLM SSP
     * @param req The servlet request
     * @param resp The servlet response

        NtlmPasswordAuthentication ntlm;

        if ( ( ntlm = negotiate(req, resp, false) ) == null ) {
            return;
        }

        chain.doFilter(new NtlmHttpServletRequest(req, ntlm), response);
    }


    /**
     * Negotiate password hashes with MSIE clients using NTLM SSP
     * 
     * @param req
     *            The servlet request
     * @param resp