code: public static int getQueueSize(SubscriberConfigProvider.SubscriberConfig subscribe) {
          int queueSize = subscribe.getQueueSize();
          if(queueSize <= 0) {
              queueSize = queueSizeDefault.get();
          }
          return queueSize;
      }
docs: Returns an appropriate consumer queue size for the passed <code>subscribe</code> annotation. This method defaults
  the size to the one specified in the fast property {@link EventBus#CONSUMER_QUEUE_SIZE_DEFAULT_PROP_NAME}
  
  
  @param subscribe The annotation for which the queue size is to be retrieved.
  
  @return The queue size.