AcceptTcp(PortTcp port,ServerSocketBar serverSocket){
  Objects.requireNonNull(port);
  Objects.requireNonNull(serverSocket);
  _port=port;
  _serverSocket=serverSocket;
}

AcceptTcp ( PortTcp port , ServerSocketBar serverSocket ) { Objects . requireNonNull ( port ) ; Objects . requireNonNull ( serverSocket ) ; _port = port ; _serverSocket = serverSocket ; }
creates a new accept thread
