@Test
  public void verifySavingServiceChangesDn() {
    this.dao.save(getRegexRegisteredService());
    final List<RegisteredService> services = this.dao.load();

    final AbstractRegisteredService rs =
        (AbstractRegisteredService) this.dao.findServiceById(services.get(0).getId());
    final long originalId = rs.getId();
    assertNotNull(rs);
    rs.setId(666);
    assertNotNull(this.dao.save(rs));
    assertNotEquals(rs.getId(), originalId);
  }