self.scheme_name = scheme_name or self.__class__.__name__
        self.auto_error = auto_error

    async def __call__(
        self, request: Request
    ) -> Optional[HTTPAuthorizationCredentials]:
        authorization = request.headers.get("Authorization")
        scheme, credentials = get_authorization_scheme_param(authorization)
        if not (authorization and scheme and credentials):

            // try TreeConnectAndX with the request
            // this does not make any sense if we are disconnecting right now
            T chainedResponse = null;
            if ( ! ( request instanceof SmbComTreeDisconnect ) && ! ( request instanceof Smb2TreeDisconnectRequest ) ) {
                chainedResponse = treeConnect(request, response);
            }

        request.isBroadcast = request.addr == null || isBroadcastAddress(request.addr);

        if ( request.isBroadcast ) {
            if ( request.addr == null ) {
                request.addr = this.baddr;
            }
            n = config.getNetbiosRetryCount();
        }
        else {
            n = 1;
        }

        do {
            try {

            throws ArtifactResolutionException {
        List<ArtifactResult> results = new ArrayList<>();

        for (ArtifactRequest request : requests) {
            ArtifactResult result = new ArtifactResult(request);
            results.add(result);

            Artifact artifact = request.getArtifact();

  fun testBasicAuth() {
    fakeDns["server"] = listOf(InetAddress.getLocalHost())

    val route = factory.newRoute()

    val request =
      Request.Builder()
        .url("https://server/robots.txt")
        .build()
    val response =
      Response.Builder()
        .request(request)
        .code(401)
        .header("WWW-Authenticate", "Basic realm=\"User Visible Realm\"")
        .protocol(HTTP_2)

        // read and validate raw model
        Model fileModel = readFileModel(request, problems);

        request.setFileModel(fileModel);
        result.setFileModel(fileModel.clone());

        activateFileModel(request, result, problems);

        if (!request.isTwoPhaseBuilding()) {
            return build(request, result, importIds);
        } else if (hasModelErrors(problems)) {

    try (Response response = client.newCall(request).execute()) {
      System.out.println(response.request().header("Date"));
    }
  }

  static class CurrentDateInterceptor implements Interceptor {
    @Override public Response intercept(Chain chain) throws IOException {
      Request request = chain.request();
      Headers newHeaders = request.headers()
          .newBuilder()
          .add("Date", new Date())
          .build();

     *
     * @param model The model to validate, must not be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    default void validateFileModel(Model model, ModelBuildingRequest request, ModelProblemCollector problems) {
        // do nothing
    }

    /**

//
// returns ErrNone if the signature matches.
func doesPresignedSignatureMatch(hashedPayload string, r *http.Request, region string, stype serviceType) APIErrorCode {
	// Copy request
	req := *r

	// Parse request query string.
	pSignValues, err := parsePreSignV4(req.Form, region, stype)
	if err != ErrNone {
		return err
	}

    }

    @Override public Response intercept(Chain chain) throws IOException {
      Request request = chain.request();
      if (request.url().host().equals(host)) {
        request = request.newBuilder()
            .header("Authorization", credentials)
            .build();
      }
      return chain.proceed(request);
    }
  }