* Creates and returns a new instance of {@link TreeSet}.
     *
     * @param <E> the element type of {@link TreeSet}
     * @return a new instance of {@link TreeSet}
     * @see TreeSet#TreeSet()
     */
    public static <E> TreeSet<E> newTreeSet() {
        return new TreeSet<>();
    }

    /**
     * Creates and returns a new instance of {@link TreeSet}.
     *

   * method has different behavior than {@link TreeSet#TreeSet(SortedSet)}, which returns a {@code
   * TreeSet} with that comparator.
   *
   * <p><b>Note:</b> this method is now unnecessary and should be treated as deprecated. Instead,
   * use the {@code TreeSet} constructor directly, taking advantage of <a

   * method has different behavior than {@link TreeSet#TreeSet(SortedSet)}, which returns a {@code
   * TreeSet} with that comparator.
   *
   * <p><b>Note:</b> this method is now unnecessary and should be treated as deprecated. Instead,
   * use the {@code TreeSet} constructor directly, taking advantage of <a