public class WebAuthenticationService {

    @Resource
    protected WebAuthenticationBhv webAuthenticationBhv;

    @Resource
    protected FessConfig fessConfig;

    public List<WebAuthentication> getWebAuthenticationList(final WebAuthPager webAuthenticationPager) {

        final PagingResultBean<WebAuthentication> webAuthenticationList = webAuthenticationBhv.selectPage(cb -> {

        ComponentUtil.register(systemHelper, "systemHelper");
        WebAuthenticationService webAuthenticationService = new WebAuthenticationService() {
            @Override
            public List<WebAuthentication> getWebAuthenticationList(final String webConfigId) {
                return Collections.emptyList();
            }
        };
        ComponentUtil.register(webAuthenticationService, WebAuthenticationService.class.getCanonicalName());

        });
    }

    protected void searchPaging(final RenderData data, final SearchForm form) {
        RenderDataUtil.register(data, "webAuthenticationItems", webAuthenticationService.getWebAuthenticationList(webAuthPager)); // page navi
        RenderDataUtil.register(data, "displayCreateLink", !crawlingConfigHelper.getAllWebConfigList(false, false, false, null).isEmpty());
        // restore from pager

        validateApi(body, messages -> {});
        final WebAuthPager pager = copyBeanToNewBean(body, WebAuthPager.class);
        final List<WebAuthentication> list = webAuthService.getWebAuthenticationList(pager);
        return asJson(
                new ApiResult.ApiConfigsResponse<EditBody>().settings(list.stream().map(this::createEditBody).collect(Collectors.toList()))

        } else {
            paramMap.put(Client.USER_AGENT, userAgent);
        }

        final List<WebAuthentication> webAuthList = webAuthenticationService.getWebAuthenticationList(getId());
        final List<Authentication> basicAuthList = new ArrayList<>();
        for (final WebAuthentication webAuth : webAuthList) {
            basicAuthList.add(webAuth.getAuthentication());
        }