}

  @SuppressWarnings("NullOptional")
  public void testFromJavaUtil() {
    assertThat(Optional.fromJavaUtil(null)).isNull();
    assertEquals(Optional.absent(), Optional.fromJavaUtil(java.util.Optional.empty()));
    assertEquals(Optional.of("abc"), Optional.fromJavaUtil(java.util.Optional.of("abc")));
  }

  public void testAbsent() {
    Optional<String> optionalName = Optional.absent();