code: private void resolveInstantFields() {
          // resolve parsed instant seconds to date and time if zone available
          if (fieldValues.containsKey(INSTANT_SECONDS)) {
              if (zone != null) {
                  resolveInstantFields0(zone);
              } else {
                  Long offsetSecs = fieldValues.get(OFFSET_SECONDS);
                  if (offsetSecs != null) {
                      ZoneOffset offset = ZoneOffset.ofTotalSeconds(offsetSecs.intValue());
                      resolveInstantFields0(offset);
                  }
              }
          }
      }
docs: -----------------------------------------------------------------------