return;
    }
    fail("Should get non-reflexive error");
  }

  /** Test proper handling where an object tests equal to null */
  public void testInvalidEqualsNull() {
    Object obj = new InvalidEqualsNullObject();
    equalsTester.addEqualityGroup(obj);
    try {
      equalsTester.testEquals();
    } catch (AssertionFailedError e) {