SpriteManager and Threads

[Hagbard Celine <robotsnofollow AT gmail.com>]

Hello,

I have 1000 instance of the same object and I want them represented as 
Sprite on the graph and move around with setposition(newposition). Like 
cars on a street. I extends the Sprite class with my own model and every 
CustomSpriteModel runs on his own thread. But if two and more threads 
try to change the postion of his own Sprite with setpostion, a 
NoSuchElementException appears. I searched the whole graphstream website 
but I just found the ThreadedProxyPipe, that seams to solve my problem. 
But I don't know how to connect it with the SpriteManager and the graph 
or the view.