Expected behavior of a Streams.cycled() instance - found issues and questions

[Olexandr Demura]

flatMap(Block<R> sink, T element).iterator() supposed to return Iterator<R>
of outputs you produce from elements and put into sink.
You put none, so next() hangs till there is something in the sink
because original stream never ends.

2012/10/23 Dmitry Bessonov <dmitry.bessonov at oracle.com>:
>   2) Getting next element of a flatMap of a cycled stream leads to hanging:
>      Streams.cycle(Arrays.asList(1, 2, 3)).flatMap((Block<Object> sink,
> Integer element) -> {}).iterator().next();