Java generics warnings on java.util.Collections

Question

I have a method:

public List sortStuff(List toSort) {
    java.util.Collections.sort(toSort);

    return toSort;
}

T

Answer 1

Do tou use this:

// Bad Code
public class Stuff implements Comparable{

    @Override
    public int compareTo(Object o) {
        // TODO
        return ...
    }

}

or this?

// GoodCode
public class Stuff implements Comparable{

    @Override
    public int compareTo(Stuff o) {
        // TODO
        return ...
    }

}