docs: public PasswordAuthentication registerPasswordAuthentication(InetAddress pAddress, int pPort, String pProtocol, String pPrompt, String pScheme, PasswordAuthentication pPA) {
          /*
           System.err.println("registerPasswordAuthentication");
           System.err.println(pAddress);
           System.err.println(pPort);
           System.err.println(pProtocol);
           System.err.println(pPrompt);
           System.err.println(pScheme);
           */
  
          return passwordAuthentications.put(new AuthKey(pAddress, pPort, pProtocol, pPrompt, pScheme), pPA);
      }