Can`t understand

[Anurag Chand]

import java.util.*;
class Generics2{   
      public static <E extends Number> List<? super E> process(List<E> nums) {}
 
      public static void main(String[] args){
          ArrayList<Integer> input = null;
          //List<Number> output = null;
          List<Integer> output = null;
          output = process(input);
      }    

How is the code in comments not working.As the return type is <? super E> ie <? super Integer>.So the List<Number> should be accepted

[Deepak Bala]

What is the error message and where did you get this question from ?