gistfile1.txt

class JCToolsPool implements BufferRecyclerPool {

        static final BufferRecyclerPool INSTANCE = new JCToolsPool();

        private final MpmcUnboundedXaddArrayQueue<BufferRecycler> queue = new MpmcUnboundedXaddArrayQueue<>(8);

        @Override
        public BufferRecycler acquireBufferRecycler() {
            BufferRecycler bufferRecycler = queue.poll();
            return bufferRecycler != null ? bufferRecycler : new BufferRecycler();
        }

        @Override
        public void releaseBufferRecycler(BufferRecycler recycler) {
            queue.offer(recycler);
        }
    }