@Test
public void shouldNotBeLocalizedAfterInitialization() {

    I18n.initialize(TestI18nDuplicateProperty.class);
    assertThat(TestI18nDuplicateProperty.testMessage.localeToTextMap.get(Locale.getDefault()), nullValue());
    assertThat(TestI18nDuplicateProperty.testMessage.localeToProblemMap.get(Locale.getDefault()), nullValue());
}