code: private void addConfigParam(String name, Object value) throws ConfigurationException {
          if (isModuleName(name)) {
              Utils.require(value instanceof Map,
                            "Value for module '%s' should be a map: %s", name, value.toString());
              updateMap(m_params, name, value);
          } else {
              setLegacyParam(name, value);
          }
      }
docs: (e.g., DBService) or a legacy YAML file option (e.g., dbhost).