docs: public void trace(String msg, Throwable t) {
          if (!logger.isTraceEnabled())
              return;
  
          if (instanceofLAL) {
              ((LocationAwareLogger) logger).log(null, fqcn, LocationAwareLogger.TRACE_INT, msg, null, t);
          } else {
              logger.trace(msg, t);
          }
      }