Is there some reason you can’t simply use List.removeAll(List)?
List<Integer> one = new ArrayList<Integer>();
one.add(1);
one.add(2);
one.add(3);
List<Integer> two = new ArrayList<Integer>();
two.add(0);
two.add(2);
two.add(4);
one.removeAll(two);
System.out.println(one);
result: "[1, 3]"