listener.assertNotRun();

    verifyGetOnPendingFuture(future);
    verifyTimedGetOnPendingFuture(future);

    assertThrows(IllegalStateException.class, future::resultNow);
    assertThrows(IllegalStateException.class, future::exceptionNow);
  }

  private static void assertSuccessful(
      AbstractFuture<@Nullable Integer> future, @Nullable Integer expectedResult)

    listener.assertNotRun();

    verifyGetOnPendingFuture(future);
    verifyTimedGetOnPendingFuture(future);

    assertThrows(IllegalStateException.class, future::resultNow);
    assertThrows(IllegalStateException.class, future::exceptionNow);
  }

  private static void assertSuccessful(
      AbstractFuture<@Nullable Integer> future, @Nullable Integer expectedResult)

    public final boolean cancel(boolean mayInterruptIfRunning) {
      return super.cancel(mayInterruptIfRunning);
    }

    @Override
    @ParametricNullness
    public final V resultNow() {
      return super.resultNow();
    }

    @Override
    public final Throwable exceptionNow() {
      return super.exceptionNow();
    }
  }