@Test
public void test10_propertiesIsEmptyElement() {

    EmptyElementForm10 form = new EmptyElementForm10();
    Map<String, String> map = converter.convert(form);
    assertThat(map.size(), is(4));
    assertThat(map, hasEntry("list", ""));
    assertThat(map, hasEntry("array", ""));
    assertThat(map, hasEntry("nestedForm.list", ""));
    assertThat(map, hasEntry("nestedForm.array", ""));
}