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

    /**