Help with module sorting

[MasterOf13FPS]

I am trying to sort modules after their length, thru the deluge clickgui.

The way they store their modules are in HashMaps with String as its key. I store mine in ArrayLists.

if (arrayList) {
                List<Module> list = Oblivion.INSTANCE.MODULE_MANAGER.getToggledModules();
                switch (arrayListSort) {
                    case "length":
                        Collections.sort(list, new StringLengthComparator(StringLengthComparator.Direction.LARGETOSMALL, Wrapper.mc().fontRendererObj));
                        break;
                    case "alphabetical":
                        Collections.sort(list);
                        break;
                }

I get a redline under "sort" where it says:

Im wondering if anyone know how I can make List a String while I get the ToggledModules? idk how I can get the name of every toggledModule thru the list.

the way deluge has it:

if (arrayList) {
                List<String> list = Module.enabled();
                switch (arrayListSort) {
                    case "length":
                        Collections.sort(list, new StringLengthComparator(StringLengthComparator.Direction.LARGETOSMALL, Helper.mc().fontRendererObj));
                        break;
                    case "alphabetical":
                        Collections.sort(list);
                        break;
                }



public static List<String> enabled()
  {
    List<String> list = new ArrayList();
    for (String s : modules.keySet())
    {
      Module module = get(s);
      if (module.active) {
        list.add(s);
      }
    }
    return list;
  }