docs: public List<CmsUser> getUsersOfGroup(
          CmsRequestContext context,
          String groupname,
          boolean includeOtherOuUsers,
          boolean directUsersOnly,
          boolean readRoles)
      throws CmsException {
  
          CmsDbContext dbc = m_dbContextFactory.getDbContext(context);
          List<CmsUser> result = null;
          try {
              result = m_driverManager.getUsersOfGroup(
                  dbc,
                  CmsOrganizationalUnit.removeLeadingSeparator(groupname),
                  includeOtherOuUsers,
                  directUsersOnly,
                  readRoles);
          } catch (Exception e) {
              dbc.report(null, Messages.get().container(Messages.ERR_GET_USERS_OF_GROUP_1, groupname), e);
          } finally {
              dbc.clear();
          }
          return result;
      }