code: public void log(LogLevel level, Throwable throwable, String message)
      {
          this.log(level, throwable, message, NO_ARGS);
      }
docs: Log a message, with associated Throwable information.
  <p>
  If the logger is currently enabled for the given message
  level then the given message is forwarded to all the
  registered LogTarget objects.
  </p>
  
  @param level     the level to log with
  @param throwable the Throwable associated with this log message
  @param message   the message to log