public void testRealWorldScenarios() throws UnknownHostException {
        // Scenario 1: SAML entityId for IPv6
        InetAddress localhost = InetAddress.getByName("localhost");
        String entityId = IpAddressUtil.buildUrl("http", localhost, 8080, "/sso/metadata");
        assertTrue(entityId.startsWith("http://"));
        assertTrue(entityId.contains(":8080/sso/metadata"));

        // Scenario 2: OpenSearch embedded mode URL

 * <pre>
 * # All SP URLs will be derived from this base URL
 * saml.sp.base.url=https://your-fess-server.example.com
 * </pre>
 *
 * <h3>Option 2: Set individual SP URLs</h3>
 * <pre>
 * # SP Entity ID (Audience URI in IdP)
 * saml.sp.entityid=https://your-fess-server.example.com/sso/metadata
 *
 * # Assertion Consumer Service URL
 * saml.sp.assertion_consumer_service.url=https://your-fess-server.example.com/sso/
 *

        // Build default URLs using localhost (matching the new implementation)
        String baseUrl = "http://localhost:8080";

        defaultSettings.put("onelogin.saml2.sp.entityid", baseUrl + "/sso/metadata");
        defaultSettings.put("onelogin.saml2.sp.assertion_consumer_service.url", baseUrl + "/sso/");

    @Test
    public void test_register_entityList() {
        RenderData data = new RenderData();

        BsUser entity1 = new BsUser();
        entity1.setName("name1");

        BsUser entity2 = new BsUser();
        entity2.setName("name2");

        List<BsUser> entityList = Arrays.asList(entity1, entity2);

        RenderDataUtil.register(data, "entities", entityList);

    public void insert(FailureUrl entity) {
        doInsert(entity, null);
    }

    public void insert(FailureUrl entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsert(entity, null);
    }

    public void update(FailureUrl entity) {
        doUpdate(entity, null);
    }

    public void insert(RequestHeader entity) {
        doInsert(entity, null);
    }

    public void insert(RequestHeader entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsert(entity, null);
    }

    public void update(RequestHeader entity) {
        doUpdate(entity, null);
    }

    public void insert(ThumbnailQueue entity) {
        doInsert(entity, null);
    }

    public void insert(ThumbnailQueue entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsert(entity, null);
    }

    public void update(ThumbnailQueue entity) {
        doUpdate(entity, null);
    }

    public void insert(Role entity) {
        doInsert(entity, null);
    }

    public void insert(Role entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsert(entity, null);
    }

    public void update(Role entity) {
        doUpdate(entity, null);
    }

    public void insert(ClickLog entity) {
        doInsert(entity, null);
    }

    public void insert(ClickLog entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsert(entity, null);
    }

    public void update(ClickLog entity) {
        doUpdate(entity, null);
    }

    public void insert(WebAuthentication entity) {
        doInsert(entity, null);
    }

    public void insert(WebAuthentication entity, RequestOptionCall<IndexRequestBuilder> opLambda) {
        entity.asDocMeta().indexOption(opLambda);
        doInsert(entity, null);
    }

    public void update(WebAuthentication entity) {
        doUpdate(entity, null);
    }