code: public static DateIterator createDateIterator(
              String rdata, Date start, TimeZone tzid, boolean strict)
              throws ParseException {
          return new RecurrenceIteratorWrapper(
                  RecurrenceIteratorFactory.createRecurrenceIterator(
                          rdata, dateToDateValue(start, true),
                          tzid, strict));
      }
docs: given a block of RRULE, EXRULE, RDATE, and EXDATE content lines, parse
  them into a single date iterator.
  @param rdata RRULE, EXRULE, RDATE, and EXDATE lines.
  @param start the first occurrence of the series.
  @param tzid the local timezone -- used to interpret start and any dates in
  RDATE and EXDATE lines that don't have TZID params.
  @param strict true if any failure to parse should result in a
  ParseException.  false causes bad content lines to be logged and ignored.