docs: private static ASN1Sequence getAltnameSequence(final List sanItem) {
          //Should not be the case, but still, a extra "safety" check
          if (sanItem.size() < 2) {
              LOGGER.error("Subject Alternative Name List does not contain at least two required elements. Returning null principal id...");
          }
          val itemType = (Integer) sanItem.get(0);
          if (itemType == 0) {
              val altName = (byte[]) sanItem.get(1);
              return getAltnameSequence(altName);
          }
          return null;
      }