org.jbox2d.collision
Interfaces 
SupportsGenericDistance
Classes 
AABB
Bound
BroadPhase
BufferedPair
CircleDef
CircleShape
CollideCircle
CollidePoly
Collision
ContactID
Distance
Manifold
ManifoldPoint
MassData
OBB
Pair
PairCallback
PairManager
PolygonDef
PolygonShape
Proxy
Segment
Shape
ShapeDef
TOI
Enums 
ShapeType