/**
     * @return the SID resolver for this context
     */
    SidResolver getSIDResolver ();


    /**
     * 
     * @return the used credentials
     */
    Credentials getCredentials ();


    /**
     * @return an URL handler using this context
     */
    URLStreamHandler getUrlHandler ();


    /**
     * @return whether default credentials are available
     */

        for (final Authentication authentication : siteCredentialList) {
            final AuthScope authScope = authentication.getAuthScope();
            credentialsProvider.setCredentials(authScope, authentication.getCredentials());
            final AuthScheme authScheme = authentication.getAuthScheme();
            if (authScope.getHost() != null && authScheme != null) {

            DfsReferralData referral, SmbAuthException sae ) throws SmbAuthException, CIFSException {
        try ( SmbSessionImpl treesess = t.getSession() ) {
            if ( treesess.getCredentials().isAnonymous() || treesess.getCredentials().isGuest() ) {
                // refresh anonymous session or fallback to anonymous from guest login
                try ( SmbSessionInternal s = trans

    public byte[] getChallenge ( CIFSContext tf, Address dc, int port ) throws SmbException {
        try ( SmbTransportInternal trans = tf.getTransportPool()
                .getSmbTransport(tf, dc, port, false, !tf.getCredentials().isAnonymous() && tf.getConfig().isIpcSigningEnforced())
                .unwrap(SmbTransportInternal.class) ) {
            trans.ensureConnected();
            return trans.getServerEncryptionKey();
        }

                final AuthScheme authScheme = getAuthScheme(paramMap, webAuthName, scheme);
                final AuthScope authScope = getAuthScope(webAuthName, scheme, paramMap);
                final Credentials credentials = getCredentials(webAuthName, scheme, paramMap);
                basicAuthList.add(new AuthenticationImpl(authScope, credentials, authScheme));
            }

                }
            }
            else if ( this.transportContext.getCredentials() instanceof NtlmPasswordAuthentication ) {
                NtlmPasswordAuthentication npa = (NtlmPasswordAuthentication) this.transportContext.getCredentials();
                String domain = npa.getUserDomain();
                String user = !npa.isAnonymous() ? npa.getUsername() : null;

    protected void testCredentialUrl ( String url, String user, String pass, String dom ) throws SmbException, MalformedURLException {
        try ( SmbFile f = new SmbFile(url) ) {
            Credentials creds = f.getContext().getCredentials();

            assertFalse(creds.isAnonymous());
            assertFalse(creds.isGuest());
            assertTrue(creds instanceof NtlmPasswordAuthenticator);

                formSchemeList.add(new Pair<>((FormScheme) authScheme, authentication.getCredentials()));
            } else {
                final AuthScope authScope = authentication.getAuthScope();
                credentialsProvider.setCredentials(authScope, authentication.getCredentials());
                if (authScope.getHost() != null && authScheme != null) {

            throw new SmbException("Service is NULL");
        }

        if ( transport.getContext().getConfig().isIpcSigningEnforced() && ( "IPC$".equals(this.getShare()) || "IPC".equals(rsvc) )
                && !sess.getCredentials().isAnonymous() && sess.getDigest() == null ) {
            throw new SmbException("IPC signing is enforced, but no signing is available");
        }

        this.service = rsvc;

     *
     * @see jcifs.smb.SmbResourceLocatorInternal#shouldForceSigning()
     */
    @Override
    public boolean shouldForceSigning () {
        return this.ctx.getConfig().isIpcSigningEnforced() && !this.ctx.getCredentials().isAnonymous() && isIPC();
    }


    /**
     * {@inheritDoc}
     *
     * @see jcifs.SmbResourceLocator#isIPC()
     */
    @Override
    public boolean isIPC () {