code: public Iterable<File> getUntrackedFiles() {
      Iterator<File> fileIterator = new ArrayList<File>(untrackedFiles).iterator();
      return (new IterableIterator<File>(fileIterator));
    }
docs: Creates a copy of untrackedFiles list and returns the <code>Iterable</code> on this new list.
  
  @return Iterable Untracked files list.