code: protected void handleInvocationNotification (int receiverId, int methodId, Object[] args)
      {
          // look up the decoder registered for this receiver
          InvocationDecoder decoder = _receivers.get(receiverId);
          if (decoder == null) {
              log.warning("Received notification for which we have no registered receiver",
                          "recvId", receiverId, "methodId", methodId, "args", args);
              return;
          }
  
  //         log.info("Dispatching invocation notification", "receiver", decoder.receiver,
  //                  "methodId", methodId, "args", args);
  
          try {
              decoder.dispatchNotification(methodId, args);
          } catch (Throwable t) {
              log.warning("Invocation notification receiver choked", "receiver", decoder.receiver,
                          "methId", methodId, "args", args, t);
          }
      }
docs: Dispatches an invocation notification.