Generics

Hi,

Can anyone explain why the result of this code:

Code:

---

public class Test {

        public static void main(String[] args) {
                List<Test> a = g();
                System.out.println(a.get(0));
        }
       
        public static<E> List<E> g() {
                List<Integer> i = new ArrayList<Integer>();
                i.add(new Integer(1));
                return (List<E>)(i);
        }
       
}

---

is:
1
??

Line List<Test> a = g() invokes <Test> List<Test> Test.g(), so why the compiler allows to cast from List<Integer> to List<Test> in line return (List<E>)(i); ?

Thanks