docs: public IQ createAck(IQ iq) {
          IQ result = null;
  
          if (iq != null) {
              // Don't acknowledge ACKs, errors...
              if (iq.getType().equals(IQ.Type.set)) {
                  IQ ack = IQ.createResultIQ(iq);
  
                  // No! Don't send it.  Let it flow to the normal way IQ results get processed and sent.
                  // getConnection().sendStanza(ack);
                  result = ack;
              }
          }
          return result;
      }