code: public static Date addYears(Date date, int iYears) {
      Calendar dateTime = dateToCalendar(date);
      dateTime.add(Calendar.YEAR, iYears);
      return dateTime.getTime();
    }
docs: Adds the specified (signed) amount of years to the given date. For
  example, to subtract 5 years from the current date, you can
  achieve it by calling: <code>addYears(Date, -5)</code>.
  
  @param date   The time.
  @param iYears The amount of years to add.
  
  @return A new date with the years added.