*/
  @SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
  @J2ktIncompatible
  @GwtIncompatible // PriorityBlockingQueue
  public static <E extends Comparable> PriorityBlockingQueue<E> newPriorityBlockingQueue() {
    return new PriorityBlockingQueue<>();
  }

  /**
   * Creates a {@code PriorityBlockingQueue} containing the given elements.
   *

   */
  @SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
  @J2ktIncompatible
  @GwtIncompatible // PriorityBlockingQueue
  public static <E extends Comparable> PriorityBlockingQueue<E> newPriorityBlockingQueue() {
    return new PriorityBlockingQueue<>();
  }

  /**
   * Creates a {@code PriorityBlockingQueue} containing the given elements.
   *

     * @return a new instance of {@link PriorityBlockingQueue}
     * @see PriorityBlockingQueue#PriorityBlockingQueue()
     */
    public static <E> PriorityBlockingQueue<E> newPriorityBlockingQueue() {
        return new PriorityBlockingQueue<>();
    }

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