code: private List<SimpleItem> generateUnsortedList() {
          ArrayList<SimpleItem> result = new ArrayList<>(26);
  
          for (int i = 0; i < 26; i++) {
              result.add(makeItem(i));
          }
  
          Collections.shuffle(result);
  
          return result;
      }
docs: Generates a simple list consisting of the letters of the alphabet, unordered on purpose.
  
  @return The new list.