StringWriter sw = new StringWriter();
        properties.save(sw);
        String msg = sw.toString();
        assertTrue(sw.toString().endsWith(RESULT3), msg);
        List<String> rawValue = properties.getRaw(KEY1);
        assertEquals(2, (Object) rawValue.size());
        assertEquals(KEY1A + " = " + VALUE1, rawValue.get(0));
        assertEquals(VALUE1, rawValue.get(1));
    }

    @Test

    while (entryItr.hasNext()) {
      Entry<K, V> entry = entryItr.next();
      entry.setValue(e3().getValue());
      entryItr.remove();
    }
    assertTrue(getMap().isEmpty());
  }

  public void testContainsEntryWithIncomparableKey() {
    try {
      assertFalse(getMap().entrySet().contains(mapEntry(IncomparableType.INSTANCE, v0())));
    } catch (ClassCastException acceptable) {

    while (entryItr.hasNext()) {
      Entry<K, V> entry = entryItr.next();
      entry.setValue(e3().getValue());
      entryItr.remove();
    }
    assertTrue(getMap().isEmpty());
  }

  public void testContainsEntryWithIncomparableKey() {
    try {
      assertFalse(getMap().entrySet().contains(mapEntry(IncomparableType.INSTANCE, v0())));
    } catch (ClassCastException acceptable) {

constraints.URL.message = {item} is geen geldige URL.
constraints.Required.message = {item} is vereist.
constraints.TypeInteger.message = {item} moet een getal zijn.
constraints.TypeLong.message = {item} moet een getal zijn.
constraints.TypeFloat.message = {item} moet een getal zijn.
constraints.TypeDouble.message = {item} moet een getal zijn.
constraints.TypeAny.message = {item} kan niet worden geconverteerd naar {propertyType}.

    Set<Object> observed = Sets.newIdentityHashSet(); // for the sake of weakly referenced locks.
    // this gets the stripes with #getAt(index)
    for (int i = 0; i < striped.size(); i++) {
      Object object = striped.getAt(i);
      assertThat(object).isNotNull();
      assertThat(striped.getAt(i)).isSameInstanceAs(object); // idempotent
      observed.add(object);
    }

    Set<Object> observed = Sets.newIdentityHashSet(); // for the sake of weakly referenced locks.
    // this gets the stripes with #getAt(index)
    for (int i = 0; i < striped.size(); i++) {
      Object object = striped.getAt(i);
      assertThat(object).isNotNull();
      assertThat(striped.getAt(i)).isSameInstanceAs(object); // idempotent
      observed.add(object);
    }

        String response = checkGetMethod(searchBody, "").asString();

        logger.info("Stats response: {}", response);

        // Verify response structure
        final Map<String, Object> res = JsonPath.from(response).getMap("response");
        assertNotNull(res, "Response should not be null");

        // Verify status code
        Integer status = JsonPath.from(response).get("response.status");

        Map<String, Object> map = new HashMap<>();
        map.put("nested", inner);

        Map<String, Object> result = MapValueExtractor.getMap(map, "nested");
        assertNotNull(result);
        assertEquals("innerValue", result.get("innerKey"));

        assertNull(MapValueExtractor.getMap(map, "missing"));
    }

    @Test
    public void testGetInteger() {
        Map<String, Object> map = new HashMap<>();

        return getAs(key, defaultValue, s -> s);
    }

    /**
     * Retrieves a setting value as an int.
     * @param key The key of the setting.
     * @param defaultValue The default value if the setting is not found.
     * @return The setting value as an int.
     */
    public int getAsInt(final String key, final int defaultValue) {
        return getAs(key, defaultValue, Integer::parseInt);
    }

    protected void testRead() {
        final Map<String, Object> searchBody = new HashMap<>();
        String response = checkGetMethod(searchBody, "").asString();
        final Map<String, Object> res = JsonPath.from(response).getMap("response.setting");
        assertTrue(!res.isEmpty());
        assertEquals(Integer.valueOf(0), JsonPath.from(response).get("response.status"));
    }

    @Override
    @AfterEach
    protected void tearDown() {