}

  @J2ktIncompatible
  @GwtIncompatible // StackOverflowError
  public void testTransform_stackOverflow() throws Exception {
    SettableFuture<Object> input = SettableFuture.create();
    ListenableFuture<Object> output = transform(input, identity(), directExecutor());
    output.addListener(
        () -> {
          throw new StackOverflowError();
        },
        directExecutor());

  }

  @J2ktIncompatible
  @GwtIncompatible // StackOverflowError
  public void testTransform_stackOverflow() throws Exception {
    SettableFuture<Object> input = SettableFuture.create();
    ListenableFuture<Object> output = transform(input, identity(), directExecutor());
    output.addListener(
        () -> {
          throw new StackOverflowError();
        },
        directExecutor());

      prev.setFuture(curr);
      prev = curr;
    }
    // prev represents the 'innermost' future
    prev.set("done");
    assertTrue(orig.isDone());
  }

  // Verify that StackOverflowError in a long chain of SetFuture doesn't cause the entire toString
  // call to fail
  @J2ktIncompatible
  @GwtIncompatible
  @AndroidIncompatible // b/391667564: crashes from stack overflows

    return outputFuture;
  }

  enum RunningState {
    NOT_RUN,
    CANCELLED,
    STARTED,
  }

  /**
   * This class helps avoid a StackOverflowError when large numbers of tasks are submitted with
   * {@link MoreExecutors#directExecutor}. Normally, when the first future completes, all the other

      prev.setFuture(curr);
      prev = curr;
    }
    // prev represents the 'innermost' future
    prev.set("done");
    assertTrue(orig.isDone());
  }

  // Verify that StackOverflowError in a long chain of SetFuture doesn't cause the entire toString
  // call to fail
  @J2ktIncompatible
  @GwtIncompatible
  @AndroidIncompatible // b/391667564: crashes from stack overflows