code: public void setPacketQueueLimit(int packetQueueLimit) {
          packetQueueLimit = packetQueueLimit < MAX_PACKET_QUEUE_LIMIT ? packetQueueLimit : MAX_PACKET_QUEUE_LIMIT;
          packetQueueLimit = packetQueueLimit >= 0 ? packetQueueLimit : 0;
          this.packetQueueLimit = packetQueueLimit;
      }
docs: Sets a positive number indicating how many <code>unacked</code> or <code>unordered</code> packaged user-datas should be
  queued maximally until they can be resolved. Defaults to {@link ProtocolConfig#MAX_PACKET_QUEUE_LIMIT}.
  
  @param packetQueueLimit the packet queue limit