*
   * @since 12.0
   */
  @J2ktIncompatible
  @GwtIncompatible // LinkedBlockingDeque
  public static <E> LinkedBlockingDeque<E> newLinkedBlockingDeque() {
    return new LinkedBlockingDeque<>();
  }

  /**
   * Creates an empty {@code LinkedBlockingDeque} with the given (fixed) capacity.
   *

   *
   * @since 12.0
   */
  @J2ktIncompatible
  @GwtIncompatible // LinkedBlockingDeque
  public static <E> LinkedBlockingDeque<E> newLinkedBlockingDeque() {
    return new LinkedBlockingDeque<>();
  }

  /**
   * Creates an empty {@code LinkedBlockingDeque} with the given (fixed) capacity.
   *