code: public List<String> splitToList(CharSequence sequence) {
      checkNotNull(sequence);
  
      Iterator<String> iterator = splittingIterator(sequence);
      List<String> result = new ArrayList<>();
  
      while (iterator.hasNext()) {
        result.add(iterator.next());
      }
  
      return Collections.unmodifiableList(result);
    }
docs: Splits {@code sequence} into string components and returns them as an immutable list. If you
  want an {@link Iterable} which may be lazily evaluated, use {@link #split(CharSequence)}.
  
  @param sequence the sequence of characters to split
  @return an immutable list of the segments split from the parameter
  @since 15.0