Hey,

 

I am working on a part of my mod which consist in rendering, on client side, some custom area.

What is needed to render those areas is sent through a channel ( I send the coordinates, the type of area, the size, ... )

 

Here comes my problem, the datas are recieved and correctly interpreted (I used some System.out.printl(thing) to watch is the treatement was correct). Once the datas a corectly understood, the client should create a ArrayList<Area> which contains all the areas Object (with the properties inside). But, when i call the list later, in another method in the same class (the list is part of the class), it appears empty.

 

Thanks to the Print I made, I saw that:

 

inside the method that create the list (method called when the packet is recieved), the Print return things like that:

 

[Netty Local Client IO #0/INFO] [sTDOUT]: [nxs.listManager:addToList:160]: area1

 

and in the other method, it return :

[Client thread/INFO] [sTDOUT]: [nxs.listManager:canBuild:73]: list emplty!!!

 

What is the problem ? What is the difference between those two?

[Netty Local Client IO #0/INFO] 
[Client thread/INFO]

http://greyminecraftcoder.blogspot.com.au/2015/01/thread-safety-with-network-messages.html

 

Problably your problem. If not - show WHOLE code (mainly packet).