@Test
public void doForwardMapWithInvalidHeaderCreationTime() {

    underTest.configure(mappingConfig, validMapperConfig);
    final Map<String, String> invalidHeader = validHeader;
    invalidHeader.replace(HEADER_HONO_CREATION_TIME, "Invalid Value");
    final ExternalMessage externalMessage = ExternalMessageFactory.newExternalMessageBuilder(invalidHeader).build();
    final List<Adaptable> mappingResult = underTest.map(externalMessage);
    assertThat(mappingResult).isEmpty();
}