code: @Override
      public DateCalculator<LocalDate> moveByDays(final int days) {
          setCurrentIncrement(days);
  
          setCurrentBusinessDate(getCurrentBusinessDate().plusDays(days));
  
          if (getHolidayHandler() != null) {
              setCurrentBusinessDate(getHolidayHandler().moveCurrentDate(this));
          }
  
          return this;
      }
docs: -----------------------------------------------------------------------