+ ".");
      return;
    }
    fail();
  }

  public static class BadNullsFactory {
    public static Object bad(@SuppressWarnings("unused") String a) {
      return new BadNulls();
    }
  }

  @AndroidIncompatible // TODO(cpovirk): ClassNotFoundException... ClassSanityTesterTest$AnInterface
  public void testSerializableOnReturnValues_good() throws Exception {