*
     * @param address the NetBIOS address to connect to
     * @param port the port number, or 0 for the default NetBIOS session service port
     * @throws IOException if an I/O error occurs while creating the socket
     */
    public NbtSocket(final NbtAddress address, final int port) throws IOException {
        this(address, port, null, 0);
    }

    /**

		expectedErr error
	}{
		{"", port, fmt.Errorf("listen tcp :%v: bind: address already in use", port)},
		{"127.0.0.1", port, fmt.Errorf("listen tcp 127.0.0.1:%v: bind: address already in use", port)},
	}

	for _, testCase := range testCases {
		err := CheckPortAvailability(testCase.host, strconv.Itoa(testCase.port), TCPOptions{})
		switch {
		case testCase.expectedErr == nil:
			if err != nil {

    }

    /**
     * Get the proxy port.
     *
     * @return proxy server port
     */
    public int getPort() {
        return port;
    }

    /**
     * Set the proxy port.
     *
     * @param port proxy server port
     */
    public void setPort(int port) {
        this.port = port;
    }

    /**
     * Get the proxy username.
     *

public class DefaultPortDetector implements PortDetector {
    /**
     * Checks to see if a specific port is available.
     *
     * @param port the port to check for availability
     * @return true if the port is available, false otherwise
     */
    public boolean isAvailable(int port) {
        try {
            ServerSocket ss = new ServerSocket(port);
            try {
                ss.setReuseAddress(true);
            } finally {

    return configureSocket(sslSocket)
  }

  @Throws(IOException::class)
  override fun createSocket(
    host: InetAddress,
    port: Int,
  ): SSLSocket {
    val sslSocket = delegate.createSocket(host, port) as SSLSocket
    return configureSocket(sslSocket)
  }

  @Throws(IOException::class)
  override fun createSocket(
    host: InetAddress,
    port: Int,

    private Server server;

    private boolean tempDocRoot = false;

    public CrawlerWebServer(final int port) {
        this(port, createDocRoot(3, port));
        tempDocRoot = true;
    }

    public CrawlerWebServer(final int port, final File docRoot) {
        this.docRoot = docRoot;

        server = new Server(port);

        final ResourceHandler resourceHandler = new ResourceHandler();

	defer s.Shutdown()

	clientConfig := &NATSArgs{
		Enable: true,
		Address: xnet.Host{
			Name:      "localhost",
			Port:      (xnet.Port(opts.Port)),
			IsPortSet: true,
		},
		Subject:       "test",
		Secure:        true,
		CertAuthority: path.Join("testdata", "contrib", "certs", "root_ca_cert.pem"),
	}

	con, err := clientConfig.connectNats()

  override fun createSocket(
    host: String,
    port: Int,
  ): Socket {
    val socket = delegate.createSocket(host, port)
    return configureSocket(socket)
  }

  @Throws(IOException::class)
  override fun createSocket(
    host: String,
    port: Int,
    localAddress: InetAddress,
    localPort: Int,
  ): Socket {
    val socket = delegate.createSocket(host, port, localAddress, localPort)

    }

    /**
     * Gets the port number. Returns -1 for any port.
     *
     * @return the port
     */
    public int getPort() {
        return port;
    }

    /**
     * Sets the port number. Use -1 for any port.
     *
     * @param port the port
     */
    public void setPort(final int port) {
        this.port = port;
    }

    /**

		{"server:http", "server", "80"},
	}

	for _, testCase := range testCases {
		host, port := mustSplitHostPort(testCase.hostPort)
		if testCase.expectedHost != host {
			t.Fatalf("host: expected = %v, got = %v", testCase.expectedHost, host)
		}

		if testCase.expectedPort != port {
			t.Fatalf("port: expected = %v, got = %v", testCase.expectedPort, port)
		}
	}
}

func TestSortIPs(t *testing.T) {
	testCases := []struct {