Why should I care that Java doesn't have reified generics?

Question

This came up as a question I asked in an interview recently as something the candidate wished to see added to the Java language. It\'s commonly-identified as a pain that Jav

Answer 1

Something that all the answers here have missed that is constantly a headache for me is since the types are erased, you cannot inherit a generic interface twice. This can be a problem when you want to make fine grained interfaces.

    public interface Service {
           VALUE get(KEY key);
    }

    public class PersonService implements Service,
        Service //Can not do!!