@Override
public void remove() {
if (!canRemove) {
throw new IllegalStateException();
} else {
canRemove = false;
list.remove(previous);
}
}
@Override
public E2 set(int index, E2 element) {
E2 oldElement = get(index);
int oldModCount = modCount;
if (oldElement != element) {
remove(oldElement);
add(index, element);
}
// After the remove and add the modCount would have been incremented twice
modCount = oldModCount + 1;
return oldElement;
}
@Override
public E2 remove(int index) {
E2 elemToRemove = get(index);
remove(elemToRemove);
return elemToRemove;
}