code: @Deprecated
      public ServerBuilder port(int port, String protocol) {
          return port(port, SessionProtocol.of(requireNonNull(protocol, "protocol")));
      }
docs: Adds a new {@link ServerPort} that listens to the specified {@code port} of all available network
  interfaces using the specified protocol.
  
  @deprecated Use {@link #http(int)} or {@link #https(int)}.
  @see <a href="#no_port_specified">What happens if no HTTP(S) port is specified?</a>