code: @Override
      public List<E> getNextIMMDates(final E start, final int numberOfDates) {
          if (numberOfDates < 0) {
              throw new IllegalArgumentException("numberOfDates cannot be < 0 (" + numberOfDates + ")");
          }
          final List<E> dates = new ArrayList<>(numberOfDates);
  
          E date = start;
          for (int i = 0; i < numberOfDates; i++) {
              date = getNextIMMDate(true, date, IMMPeriod.QUARTERLY);
              dates.add(date);
          }
  
          return dates;
      }
docs: Returns a list of N IMM dates from a given date, it will exclude the start
  date if it is an IMM date
  (same as as calling getIMMDates(start,end,IMMPeriod.QUARTERLY)).
  
  @param start
  start of the interval, excluded
  @param numberOfDates
  number of IMM dates to return.
  @return list of IMM dates
  @since 1.4.0