IllegalStateException.class,
        () ->
            closingFuture.finishToValueAndCloser(
                new NoOpValueAndCloserConsumer<>(), finishToValueAndCloserExecutor));
  }

  @Override
  <T> T getFinalValue(ClosingFuture<T> closingFuture) throws ExecutionException {
    return finishToValueAndCloser(closingFuture).get();
  }

  @Override
  void assertFinallyFailsWithException(ClosingFuture<?> closingFuture) {

    FluentFuture<String> unused = closingFuture.finishToFuture();
    assertDerivingThrowsIllegalStateException(closingFuture);
  }

  @Override
  <T> T getFinalValue(ClosingFuture<T> closingFuture) throws ExecutionException {
    return getUninterruptibly(closingFuture.finishToFuture());
  }

  @Override
  void assertFinallyFailsWithException(ClosingFuture<?> closingFuture) {

        IllegalStateException.class,
        () ->
            closingFuture.finishToValueAndCloser(
                new NoOpValueAndCloserConsumer<>(), finishToValueAndCloserExecutor));
  }

  @Override
  <T> T getFinalValue(ClosingFuture<T> closingFuture) throws ExecutionException {
    return finishToValueAndCloser(closingFuture).get();
  }

  @Override
  void assertFinallyFailsWithException(ClosingFuture<?> closingFuture) {