@Override
  public MapSettings setProperty(String key, String value) {
    return (MapSettings) super.setProperty(key, value);
  }
@Test
  public void should_fallback_deprecated_key_to_new_key() {
    Settings settings = new MapSettings(definitions);
    settings.setProperty("newKey", "value of newKey");

    assertThat(settings.getString("newKey")).isEqualTo("value of newKey");
    assertThat(settings.getString("oldKey")).isEqualTo("value of newKey");
  }