assertEquals("value2", arrayValues[0]);
        assertEquals("value3", arrayValues[1]);

        String[] listValues = defaultContentsParser.getFieldValues(document, "list_field");
        assertEquals(2, listValues.length);
        assertEquals("value4", listValues[0]);
        assertEquals("value5", listValues[1]);

        String[] intValues = defaultContentsParser.getFieldValues(document, "int_field");

            final List<String> list = new ArrayList<>();
            list.add(strValue);
            return list;
        }
        if (value instanceof List<?> listValue) {
            return (List<String>) listValue;
        }
        throw new IllegalArgumentException("The value for key '" + key + "' should be String or List, but was " + value.getClass());
    }

    /**

            final List<String> list = new ArrayList<>();
            list.add(strValue);
            return list;
        }
        if (value instanceof List<?> listValue) {
            return (List<String>) listValue;
        }
        throw new IllegalArgumentException("The value should be String or List, but " + value.getClass());
    }

    /**

            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");
            WebApiUtil.setObject("mapValue", map);

        } catch (Exception e) {