qbit/core/src/main/java/io/advantageous/qbit/queue/impl/BasicQueue.java
@Override
    public SendQueue<T> sendQueue() {
        if (debug) logger.debug("SendQueue requested for {}", name);
        return sendQueueSupplier.get();
    }
@Override
    public SendQueue<T> sendQueue() {
        if (debug) logger.debug("SendQueue requested for {}", name);
        return sendQueueSupplier.get();
    }
This returns a new instance of SendQueue every time you call it
so call it only once per thread.

@return sendQueue.