code: public void fatal(Object message)
      {
          if (IS12)
          {
              getLogger().log(FQCN, Level.FATAL, message, null);
          }
          else
          {
              getLogger().log(FQCN, Level.FATAL, message, null);
          }
      }
docs: Log a message to the Log4j Logger with <code>FATAL</code> priority.