for (int i = 0; i < expected.size(); i++) {
      assertEquals(expected.get(i), getDone(futures.get(i)));
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // ClassSanityTester
  public void testFutures_nullChecks() throws Exception {
    new ClassSanityTester()
        .forAllPublicStaticMethods(Futures.class)
        .thatReturn(Future.class)
        .testNulls();
  }

    for (int i = 0; i < expected.size(); i++) {
      assertEquals(expected.get(i), getDone(futures.get(i)));
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // ClassSanityTester
  public void testFutures_nullChecks() throws Exception {
    new ClassSanityTester()
        .forAllPublicStaticMethods(Futures.class)
        .thatReturn(Future.class)
        .testNulls();
  }