if ( this.loadBalance ) {
                    NtlmChallenge chal = (NtlmChallenge) ssn.getAttribute("NtlmHttpChal");
                    if ( chal == null ) {
                        chal = getChallengeForDomain(this.defaultDomain);
                        ssn.setAttribute("NtlmHttpChal", chal);
                    }
                    dc = chal.dc;
                    challenge = chal.challenge;

                byte[] challenge;

                if( loadBalance ) {
                    NtlmChallenge chal = (NtlmChallenge)ssn.getAttribute( "NtlmHttpChal" );
                    if( chal == null ) {
                        chal = SmbSession.getChallengeForDomain();
                        ssn.setAttribute( "NtlmHttpChal", chal );
                    }
                    dc = chal.dc;
                    challenge = chal.challenge;

            }
            HttpSession ssn = request.getSession();
            ssn.setAttribute("NtlmHttpAuth", ntlm);
            ssn.setAttribute( "ntlmdomain", ntlm.getDomain() );
            ssn.setAttribute( "ntlmuser", ntlm.getUsername() );
        } else {
            HttpSession ssn = request.getSession(false);
            if (ssn == null || ssn.getAttribute("NtlmHttpAuth") == null) {

            HttpSession ssn = request.getSession();
            ssn.setAttribute("NtlmHttpAuth", ntlm);
            ssn.setAttribute("ntlmdomain", ntlm.getUserDomain());
            ssn.setAttribute("ntlmuser", ntlm.getUsername());
        }
        else {
            HttpSession ssn = request.getSession(false);
            if ( ssn == null || ssn.getAttribute("NtlmHttpAuth") == null ) {

                }
                f.setAttributes(attrs);
                assertEquals(attrs, f.getAttributes());
            }
            catch ( SmbUnsupportedOperationException e ) {
                Assume.assumeTrue("No Ntsmbs", false);
            }
            finally {
                try {
                    f.setAttributes(f.getAttributes() & ~SmbConstants.ATTR_READONLY);
                }

            }

            req.getSession().setAttribute("npa-" + server, ntlm);

        }
        else if ( !this.credentialsSupplied ) {
            if ( ssn != null ) {
                ntlm = (NtlmPasswordAuthentication) ssn.getAttribute("npa-" + server);
            }
            if ( ntlm == null ) {

                ntlm = new NtlmPasswordAuthentication(domain, user, password);
            }

            req.getSession().setAttribute( "npa-" + server, ntlm );

        } else if( !credentialsSupplied ) {
            if( ssn != null ) {
                ntlm = (NtlmPasswordAuthentication)ssn.getAttribute( "npa-" + server );
            }
            if( ntlm == null ) {
                resp.setHeader( "WWW-Authenticate", "NTLM" );

                try {
                    b.setAttributes(SmbConstants.ATTR_HIDDEN);
                    haveHidden = true;
                }
                catch ( SmbUnsupportedOperationException e ) {}

                c.createNewFile();
                boolean haveArchive = false;
                try {
                    c.setAttributes(SmbConstants.ATTR_ARCHIVE);
                    haveArchive = true;

    /**
     * Turn off the read-only attribute of this file. This is shorthand for
     * <tt>setAttributes( getAttributes() &amp; ~ATTR_READONLY )</tt>.
     *
     * @throws CIFSException
     */
    void setReadWrite () throws CIFSException;


    /**
     * Make this file read-only. This is shorthand for <tt>setAttributes(
     * getAttributes() | ATTR_READ_ONLY )</tt>.
     *
     * @throws CIFSException
     */

        }
    }


    @Override
    public void setReadOnly () throws SmbException {
        setAttributes(getAttributes() | ATTR_READONLY);
    }


    @Override
    public void setReadWrite () throws SmbException {
        setAttributes(getAttributes() & ~ATTR_READONLY);
    }


    /**
     * Returns a {@link java.net.URL} for this <code>SmbFile</code>. The