code: static int getYearLength(int year) {
  
          int cycleNumber = (year - 1) / 30;
          Integer[] cycleYears;
          try {
              cycleYears = ADJUSTED_CYCLE_YEARS.get(cycleNumber);
          } catch (ArrayIndexOutOfBoundsException e) {
              cycleYears = null;
          }
          if (cycleYears != null) {
              int yearInCycle = (year - 1) % 30;
              if (yearInCycle == 29) {
                  return ADJUSTED_CYCLES[cycleNumber + 1].intValue()
                          - ADJUSTED_CYCLES[cycleNumber].intValue()
                          - cycleYears[yearInCycle].intValue();
              }
              return cycleYears[yearInCycle + 1].intValue()
                      - cycleYears[yearInCycle].intValue();
          } else {
              return isLeapYear(year) ? 355 : 354;
          }
      }
docs: Returns year length.
  
  @param year  year
  @return year length