@Override
  public Collection<IT0185> findByPernr(Long pernr) {
    if (pernr == null) {
      return Collections.emptyList();
    }

    Optional<Collection<IT0185>> bunchOfIT0185 =
        Optional.ofNullable(
            it0185Repository.findByPernr(pernr, SAPInfoType.PERSONAL_ID.infoType()));

    return (bunchOfIT0185.isPresent()
        ? bunchOfIT0185.get().stream().collect(Collectors.toList())
        : Collections.emptyList());
  }