Ensure that accesses queue is empty when calling trackAccess
#177
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This seems like a bug to me. I think the only reason that it hasn't been reported is that it only really affects the outcome of
.sizeunder heavy contention for a very short period of time until the next time we calltrackAccess(). Still, better to fix it.Essentially we need to ensure that the queue is truly empty before we exit the
trackAccess()method, as there is a chance another thread added an item by the time we finished draining the queue and untilupdating.set(false)is called