public void completelyRemoveAll() {
   for (TitlesDepartmentUnitUnitGroup item : findAll()) {
     try {
       titlesDepartmentUnitUnitGroupPersistence.remove(item.getTitlesDepartmentUnitUnitGroupId());
     } catch (NoSuchTitlesDepartmentUnitUnitGroupException e) {
       LOGGER.info(e);
     } catch (SystemException e) {
       LOGGER.info(e);
     }
   }
 }