# How do I prevent a Box2d dynamic body from sticking to static body walls in zero gravity?

I'm still making this air hockey game. I have it mostly there now, but the dynamic body which is the puck always sticks to the walls (static body rectangles that form the border of the table).

I read on box2d forums that there is a setting called b2_velocityThreshold, which needs to be set to 0 for games like billiards. I'm assuming that would help me, here, but I can't find any such setting in libgdx box2d.

Is there any setting which I can change to allow the puck to bounce off the walls? If not, how should I go about making such a game in libgdx?

World.setVelocityThreshold(0f);