docs: public List<CmsGroup> getGroups(
          CmsRequestContext context,
          CmsOrganizationalUnit orgUnit,
          boolean includeSubOus,
          boolean readRoles)
      throws CmsException {
  
          List<CmsGroup> result = null;
          CmsDbContext dbc = m_dbContextFactory.getDbContext(context);
          try {
              result = m_driverManager.getGroups(dbc, orgUnit, includeSubOus, readRoles);
          } catch (Exception e) {
              dbc.report(null, Messages.get().container(Messages.ERR_READ_ORGUNIT_GROUPS_1, orgUnit.getName()), e);
          } finally {
              dbc.clear();
          }
          return result;
      }