code: public static int getLengthForCountryCode(String countryCode) {
          int index = indexOf(countryCode);
          if (index > -1) {
              return CountryCodes.COUNTRY_IBAN_LENGTHS[index] & REMOVE_SEPA_MASK;
          }
          return -1;
      }
docs: Returns the IBAN length for a given country code.
  @param countryCode a non-null, uppercase, two-character country code.
  @return the IBAN length for the given country, or -1 if the input is not a known, two-character country code.
  @throws NullPointerException if the input is null.