@Test
public void createObjectDirectMappingSimpleTypeNull() {

    Map<List<String>, Object> params = new HashMap<>();
    params.put(emptyList(), null);
    ValueWrapper<Object> initialInstance = runnerHelper.getDirectMapping(params);
    Object objectRaw = runnerHelper.createObject(
            initialInstance,
            String.class.getCanonicalName(),
            params,
            this.getClass().getClassLoader());
    assertNull(objectRaw);
}