public void isNotEqualTo(@Nullable Object unexpected) {
    standardIsNotEqualTo(unexpected);
  }
@Test
  public void isNotEqualToFailureWithNulls() {
    Object o = null;
    expectFailure.whenTesting().that(o).isNotEqualTo(null);
    assertFailureKeys("expected not to be");
    assertFailureValue("expected not to be", "null");
  }