public List<Group> getAvailableGroupList() {
        return groupBhv.selectList(cb -> {
            cb.query().matchAll();
            cb.query().addOrderBy_Name_Asc();
            cb.paging(fessConfig.getPageGroupMaxFetchSizeAsInteger(), 1);
        });
    }

     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     * @throws NumberFormatException When the property is not integer.
     */
    Integer getPageGroupMaxFetchSizeAsInteger();

    /**
     * Get the value for the key 'page.crawling.info.param.max.fetch.size'. <br>
     * The value is, e.g. 100 <br>