code: private void setMonitorAttribute(Long monitorInterval) {
          if (MONITOR_OFF.equals(monitorInterval)) {
              this.fileMonitorProps.remove(FileMonitor.MONITOR_INTERVAL);
          } else {
              this.fileMonitorProps.put(FileMonitor.MONITOR_INTERVAL, monitorInterval);
          }
      }
docs: Set the monitor interval attribute and return a boolean indicating
  if the {@link FileMonitor} should be re-registered.
  
  @param monitorAttributeObject the monitor interval attribute to set.