*
     * @param <E> the element type of {@link LinkedHashSet}
     * @return a new instance of {@link LinkedHashSet}
     * @see LinkedHashSet#LinkedHashSet()
     */
    public static <E> LinkedHashSet<E> newLinkedHashSet() {
        return new LinkedHashSet<>();
    }

    /**
     * Creates and returns a new instance of {@link LinkedHashSet}.
     *
     * @param <E> the element type of {@link LinkedHashSet}

   *
   * @return a new, empty {@code LinkedHashSet}
   */
  @SuppressWarnings("NonApiType") // acts as a direct substitute for a constructor call
  public static <E extends @Nullable Object> LinkedHashSet<E> newLinkedHashSet() {
    return new LinkedHashSet<>();
  }

  /**
   * Creates a <i>mutable</i> {@code LinkedHashSet} instance containing the given elements in order.
   *