Oki I found a solution :
I add "-Dsun.java2d.noddraw=true" to my VM parameter and that's work perfectly with no flicker.
I found some informations about that :
"In Windows, in Swing, you will see the entire screen repaint from time to time for no apparent reason, causing an annoying flicker. This is due to the fact that Swing uses DirectDraw for rendering which periodically redraws just to be safe. You can turn off DirectDraw and use standard Windows GDI rendering by starting
Java.exe -Dsun.java2d.noddraw=true MyClass
This will slightly slow down painting, however."
You could found more information on this page :