What logical error prevents swapElements from properly swapping two elements?

import java.util.ArrayList;
public class DebugExample {
    public static void main(String[] args){
         ArrayList<Integer> nums = new ArrayList<>();
         nums.add(1);
         nums.add(2);
         nums.add(3);
         swapElements(nums, 0, 2);
         System.out.println(nums);
    }
    public static void swapElements(ArrayList<Integer> list, int i, int j) {
         list.set(i, list.get(j));
         list.set(j, list.get(i));
    }
}