assertTrue(result.isPresent());
        assertEquals(testValue, result.get());
    }

    public void test_ofNullable_withList() {
        List<String> testValue = Arrays.asList("item1", "item2", "item3");
        OptionalEntity<List<String>> result = OptionalUtil.ofNullable(testValue);

        assertNotNull(result);
        assertTrue(result.isPresent());
        assertEquals(testValue, result.get());

        // Test getting non-existing item
        OptionalEntity<ProtwordsItem> item = protwordsFile.get(999);
        assertFalse(item.isPresent());
    }

    public void test_get_withUnloadedData() {
        // Test getting item when data is not loaded yet
        OptionalEntity<ProtwordsItem> item = protwordsFile.get(1);
        assertTrue(item.isPresent());
        assertEquals("test1", item.get().getInput());
    }

    }

    public void test_register_nonEntityList() {
        RenderData data = new RenderData();
        List<String> stringList = Arrays.asList("item1", "item2", "item3");

        RenderDataUtil.register(data, "strings", stringList);

        Object result = data.getDataMap().get("strings");

                builder.field("name", "test");
                builder.field("value", 123);
                builder.field("enabled", true);
                builder.startArray("items");
                builder.value("item1");
                builder.value("item2");
                builder.endArray();
                builder.startObject("nested");
                builder.field("inner", "value");
                builder.endObject();

        Map<String, Object> nested = new HashMap<>();
        nested.put("level2", "value");
        doc.put("nested", nested);

        List<String> list = new ArrayList<>();
        list.add("item1");
        list.add("item2");
        doc.put("list", list);

        SearchResult result = SearchResult.create().addDocument(doc).allRecordCount(1L).build();

        assertEquals(1, result.getDocumentList().size());

		Number2: 200,
		Number3: 300.1,
		Now:     &now,
		Item1: &QueryResetItem{
			ID:   "u_1_1",
			Name: "item_1_1",
		},
		Item2: &QueryResetItem{
			ID:   "u_1_2",
			Name: "item_1_2",
		},
	}

	q2 := QueryResetNullValue{
		Item1: &QueryResetItem{
			ID:   "u_2_1",
			Name: "item_2_1",
		},
		Item2: &QueryResetItem{
			ID:   "u_2_2",
			Name: "item_2_2",
		},

            WebApiUtil.setObject("objectValue", new Object());

            // Test with collections
            java.util.List<String> list = java.util.Arrays.asList("item1", "item2");
            WebApiUtil.setObject("listValue", list);

            java.util.Map<String, String> map = new java.util.HashMap<>();
            map.put("key", "value");

        assertEquals("123", testTransformer.getData(intData));

        // List data
        List<String> list = new ArrayList<>();
        list.add("item1");
        list.add("item2");
        TestAccessResultData<String> listData = new TestAccessResultData<>(list.toString().getBytes());
        Object retrievedList = testTransformer.getData(listData);

    }

    /**
     * Indexes a single suggest item.
     * @param item The suggest item to index.
     * @return The SuggestIndexResponse.
     */
    public SuggestIndexResponse index(final SuggestItem item) {
        return index(new SuggestItem[] { item });
    }

    /**
     * Indexes multiple suggest items.
     * @param items The suggest items to index.
     * @return The SuggestIndexResponse.
     */

     *
     * @param item the character mapping item to update
     */
    @Override
    public synchronized void update(final CharMappingItem item) {
        try (MappingUpdater updater = new MappingUpdater(item)) {
            reload(updater);
        }
    }

    /**
     * Deletes a character mapping item from the dictionary file.
     *