}
        provider = customProvider;
    }

 *            response type
 *
 */
public interface Request <T extends CommonServerMessageBlockResponse> extends CommonServerMessageBlockRequest {

    /**
     * 
     * @param tc
     * @return the initialized response
     * @internal
     */
    public T initResponse ( CIFSContext tc );


    /**
     * 
     * @return the response message
     */
    @Override
    public T getResponse ();

        if ( INSTANCE != null ) {
            throw new CIFSException("Singleton context is already initialized");
        }
        Properties p = new Properties();
        try {
            String filename = System.getProperty("jcifs.properties");
            if ( filename != null && filename.length() > 1 ) {

                try ( FileInputStream in = new FileInputStream(filename) ) {
                    p.load(in);

            public List<ResolverType> getResolveOrder () {
                return Arrays.asList(ResolverType.RESOLVER_WINS);
            }
        });

        // need to override NameServiceClient as it otherwise gets initialized with the original config
        final NameServiceClientImpl nsc = new NameServiceClientImpl(ctx);
        ctx = new CIFSContextWrapper(ctx) {

            @Override

    }


    @Override
    public byte[] calculateMIC ( byte[] data ) throws CIFSException {
        byte[] sk = this.signKey;
        if ( sk == null ) {
            throw new CIFSException("Signing is not initialized");
        }

        int seqNum = this.signSequence.getAndIncrement();
        byte[] seqBytes = new byte[4];
        SMBUtil.writeInt4(seqNum, seqBytes, 0);

 * should be sufficient for most needs.
 * 
 * If you want to retain the classic singleton behavior you can use
 * {@link jcifs.context.SingletonContext#getInstance()}
 * witch is initialized using system properties.
 * 
 */
@SuppressWarnings ( "javadoc" )
public class Config {

    private static final Logger log = LoggerFactory.getLogger(Config.class);


    /**

    static {
        try {
            SPNEGO_MECH_OID = new ASN1ObjectIdentifier("1.3.6.1.5.5.2");
        }
        catch ( IllegalArgumentException e ) {
            log.error("Failed to initialize OID", e);
        }
    }

    private SSPContext mechContext;

    private boolean firstResponse = true;
    private boolean completed;

    private ASN1ObjectIdentifier[] mechs;

                this.realm = "jCIFS";

            this.transportContext = new BaseContext(new PropertyConfiguration(p));;
        }
        catch ( CIFSException ex ) {
            throw new ServletException("Failed to initialize config", ex);
        }
    }


    @Override
    protected void service ( HttpServletRequest request, HttpServletResponse response ) throws ServletException, IOException {
        Address dc;

 * is global therefore property names should be unique. Before use,
 * the <code>load</code> method should be called with the name of a
 * <code>Properties</code> file (or <code>null</code> indicating no
 * file) to initialize the <code>Config</code>. The <code>System</code>
 * properties will then populate the <code>Config</code> as well potentially
 * overwriting properties from the file. Thus properties provided on the

                        handler = (URLStreamHandler) handlerClass.newInstance();
                        break;
                    }
                    catch ( Exception ex ) {
                        log.debug("Failed to initialize handler " + className, ex);
                    }
                }
            }
            if ( handler == null ) {
                for ( int i = 0; i < JVM_VENDOR_DEFAULT_PKGS.length; i++ ) {