Expecting ConcurrentModificationException by deleting 2nd last element of ArrayList while iterating the same ArrayList [duplicate]

I am deleting 2nd last element of an ArrayList while iterating the same list through enhanced for-loop and I was expecting a ConcurrentModificationException however it is working fine. Kindly help me if java has provided a special case for 2nd last element.

I tried it with different indexes but it is working as expected only for the 2nd last element, it is giving unexpected result

    List<Integer> list=new ArrayList<>();
    list.add(2);
    list.add(4);
    list.add(3);
    list.add(5);
    for(Integer num:list) {
        if(num==3) {
            list.remove(num);
        }
        System.out.println(num);
    }

Expected result: ConcurrentModificationException

Actual Result: Working fine