code: public void sendErrorPacket(String cmd, String nodeID, Context ctx, Throwable cause, long sequence) {
  		FastBuildTree msg = throwableToTree(ctx.id, this.nodeID, cause);
  
  		// Stream packet counter (1...N)
  		msg.putUnsafe("seq", sequence);
  
  		// End of streaming
  		msg.putUnsafe("stream", false);
  
  		// Send message
  		publish(cmd, nodeID, msg);
  	}
docs: --- ERROR PACKET (STREAMING) ---