People have already asked the same on the mailing list ☺. The main reason is Iterable also has a re-iterable semantic, while Stream is not.
I think the main reason is that
Iterable
implies reusability, whereasStream
is something that can only be used once — more like anIterator
.If
Stream
extendedIterable
then existing code might be surprised when it receives anIterable
that throws anException
the
second time they dofor (element : iterable)
.