* this implementation.
   *
   * @since 7.0
   */
  protected @Nullable Object[] standardToArray() {
    @Nullable Object[] newArray = new @Nullable Object[size()];
    return toArray(newArray);
  }

  /**
   * A sensible definition of {@link #toArray(Object[])} in terms of {@link #size} and {@link

   * this implementation.
   *
   * @since 7.0
   */
  protected @Nullable Object[] standardToArray() {
    @Nullable Object[] newArray = new @Nullable Object[size()];
    return toArray(newArray);
  }

  /**
   * A sensible definition of {@link #toArray(Object[])} in terms of {@link #size} and {@link