/**
     * 
     * @return the default authentiucation credentials
     */
    public static NtlmAuthenticator getDefault () {
        return auth;
    }


    protected final String getRequestingURL () {
        return this.url;
    }


    protected final SmbAuthException getRequestingException () {
        return this.sae;
    }


    /**

 */

    public synchronized static void setDefault( NtlmAuthenticator a ) {
        if( auth != null ) {
            return;
        }
        auth = a;
    }

    protected final String getRequestingURL() {
        return url;
    }
    protected final SmbAuthException getRequestingException() {
        return sae;
    }

/**

            if (getRequestorType() == RequestorType.PROXY) {
                // Note: Do not use getRequestingProtocol() here, which is "http" even for HTTPS proxies.
                String protocol = getRequestingURL().getProtocol();
                String proxyUser = systemProperties.get(protocol + ".proxyUser");
                if (proxyUser != null) {