code: 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;
      }
docs: Returns a list of users in a group.<p>
  
  @param context the current request context
  @param groupname the name of the group to list users from
  @param includeOtherOuUsers include users of other organizational units
  @param directUsersOnly if set only the direct assigned users will be returned,
  if not also indirect users, ie. members of child groups
  @param readRoles if to read roles or groups
  
  @return all <code>{@link CmsUser}</code> objects in the group
  
  @throws CmsException if operation was not successful