this.allowsSelfLoops = allowsSelfLoops;
  }

  @Override
  public Graph<Integer> createGraph() {
    graphBuilder = GraphBuilder.directed().allowsSelfLoops(allowsSelfLoops).immutable();
    return graphBuilder.build();
  }

  @Override
  final void addNode(Integer n) {
    graphBuilder.addNode(n);
    graph = graphBuilder.build();
  }

  @Override
  final void putEdge(Integer n1, Integer n2) {

    this.allowsSelfLoops = allowsSelfLoops;
  }

  @Override
  public Graph<Integer> createGraph() {
    graphBuilder = GraphBuilder.undirected().allowsSelfLoops(allowsSelfLoops).immutable();
    return graphBuilder.build();
  }

  @Override
  final void addNode(Integer n) {
    graphBuilder.addNode(n);
    graph = graphBuilder.build();
  }

  @Override
  final void putEdge(Integer n1, Integer n2) {

    }

    @SuppressWarnings("unchecked")
    @Override
    public <T extends Credentials> T unwrap(Class<T> t) {
        if (t.isAssignableFrom(this.getClass())) {
            return (T) this;
        }
        return null;
    }

    @Override
    public Subject getSubject() {
        return null;
    }

    @Override
    public void refresh() throws CIFSException {
    }

    private final BufferedSink sink = Okio.buffer(pipe.sink());

    public BufferedSink sink() {
      return sink;
    }

    @Override public MediaType contentType() {
      return MEDIA_TYPE_MARKDOWN;
    }

    @Override public void writeTo(BufferedSink sink) throws IOException {
      sink.writeAll(pipe.source());
    }
  }

  public static void main(String... args) throws Exception {

        this.out = LoggerFactory.getLogger(Slf4jMavenTransferListener.class);
    }

    // TODO should we deprecate?
    public Slf4jMavenTransferListener(Logger out) {
        this.out = out;
    }

    @Override
    public void transferInitiated(TransferEvent event) {
        String action = event.getRequestType() == TransferEvent.RequestType.PUT ? "Uploading" : "Downloading";

        long interval = 500;

        long previousTime;

        @Override
        public void setInitParameterMap(final Map<String, Object> params) {
        }

        /*
         * (non-Javadoc)
         *
         * @see org.codelibs.fess.crawler.client.CrawlerClient#doGet(java.lang.String)
         */
        @Override
        public ResponseData execute(final RequestData request) {

      // allocation.
      submittedTask =
          new Runnable() {
            @Override
            public void run() {
              task.run();
            }

            @Override
            public String toString() {
              return task.toString();
            }
          };
      queue.add(submittedTask);

      // allocation.
      submittedTask =
          new Runnable() {
            @Override
            public void run() {
              task.run();
            }

            @Override
            public String toString() {
              return task.toString();
            }
          };
      queue.add(submittedTask);

    private static final String CHILD_DIRECTORY = "child-directory";

    private static final String CHILD_DIRECTORY_PROPERTY = "project.directory";

    @Override
    public void assembleModelInheritance(
            Model child, Model parent, ModelBuildingRequest request, ModelProblemCollector problems) {
        Map<Object, Object> hints = new HashMap<>();

    }

    override fun rstStream(
      streamId: Int,
      errorCode: ErrorCode,
    ) {
      if (pushedStream(streamId)) {
        pushResetLater(streamId, errorCode)
        return
      }
      val rstStream = removeStream(streamId)
      rstStream?.receiveRstStream(errorCode)
    }

    override fun settings(
      clearPrevious: Boolean,