code: @Override
  	public double getDaycount(LocalDate startDate, LocalDate endDate) {
  		if(startDate.isAfter(endDate)) {
  			return -getDaycount(endDate,startDate);
  		}
  
  		return daysBetween(startDate, endDate);
  	}
docs: /* (non-Javadoc)
  @see net.finmath.time.daycount.DayCountConventionInterface#getDaycount(org.threeten.bp.LocalDate, org.threeten.bp.LocalDate)