hg: lambda/lambda/jdk: Update initial lambda APIs and tests to use new syntax.

[Colin Decker]

On Sun, Sep 11, 2011 at 7:52 AM, Rémi Forax <forax at univ-mlv.fr> wrote:
>
> - some casts are wrong, you can't  cast a Predicate<? super T> to
>   a Predicate<T>, it's not safe.
>

What isn't safe about it? If it weren't safe, it wouldn't be safe to cast
Predicate<Object>s to Predicate<T> as you later advocate.


> - some methods return a Predicate<Object> instead of a
>   Predicate<T> so it will not work if the predicate is used by example
>   in a ?:
>

It isn't a bug for the methods to return the actual type of the predicate
and I don't recall having seen any valid arguments in the last discussion as
to why they should return Predicate<T>.