On 14 October 2015 at 18:56, Kevin Bourrillion <kev...@google.com> wrote: > Note that we have empirically learned through our Lists/Sets/Maps factory > classes that varargs factory methods for mutable collections are almost > entirely useless.
Having taken a few days to think it over, I reluctantly think that Kevin is right. Particularly as static methods on classes are inherited, as Remi says. If someone needs a mutable one, they can simply write: new ArrayList<>(List.of(z, b, c)) Adding immutable implementations just on the interfaces seems like a reasonable balancing point, and provides more API room to add the IntFunction version I mentioned ;-) As a side note, a really nice language change would be to deprecate the ability to refer to static methods from subclasses or instance variables in the JLS. Stephen
