hg: lambda/lambda/jdk: 8023997: j.l.String.join(java.lang.CharSequence, java.lang.Iterable) sample doesn't compile and is incorrect

[Kasper Nielsen]

On Fri, Aug 30, 2013 at 11:01 AM, Paul Sandoz <paul.sandoz at oracle.com>wrote:

>
> > Is actually "short" for String.join(", ", numbers);
> >
>
> Not quite; List<Integer> is not compatible with Iterable<? extends
> CharSequence>.
>
> You're right,

any reason for not just taking Iterable<?> instead of Iterable<? extends
CharSequence>. As in

public static String join(CharSequence delimiter, Iterable<?> elements) ...
calls .toString() on each element.

- Kasper