code: public String getRejectionLogMessageId() {
          String id = logMessageId;
          if (id == null) {
              id = getRejectionLogMessage(Collections.<String, ModelNode>emptyMap());
          }
          logMessageId = id;
          return logMessageId;
      }
docs: Returns the log message id used by this checker. This is used to group it so that all attributes failing a type of rejction
  end up in the same error message. This default implementation uses the formatted log message with an empty attribute map as the id.
  
  @return the log message id