@Override
        public E weakPoll() {
            return poll();
        }
The queue factory produces {@link ConcurrentQueue} instances based on a best fit to the {@link ConcurrentQueueSpec}.
This allows minimal dependencies between user code and the queue implementations and gives users a way to express
their requirements on a higher level.

@author nitsanw
jctools-experimental/src/main/java/org/jctools/queues/alt/ConcurrentQueueFactory.java