docs: public final String dumpConfiguration() {
      if (properties.isEmpty())
        return "No configuration settings stored";
  
      StringBuilder response = new StringBuilder("TSD Configuration:\n");
      response.append("File [" + config_location + "]\n");
      int line = 0;
      for (Map.Entry<String, String> entry : properties.entrySet()) {
        if (line > 0) {
          response.append("\n");
        }
        response.append("Key [" + entry.getKey() + "]  Value [");
        if (entry.getKey().toUpperCase().contains("PASS")) {
           response.append("********");
        } else {
          response.append(entry.getValue());
        }
        response.append("]");
        line++;
      }
      return response.toString();
    }