Re: Somewhere in this constructor of PriorityBlockingQueue is hard to understand

Of course, even subclasses are coded to allow null items, heapify() can find the null item.




At 2020-08-05 13:42:16, "Liu via Concurrency-interest" <[email protected]> wrote:

i see, in this point, heapify() can find any null item.


But about first question, as I says,
only when "pq.getClass() == PriorityBlockingQueue.class" Expression holds, then you can do "screen = false".
Is this opinion wrong?

Maybe Instanceof allows subclasses which could be coded to allow null items.

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