Detect witch part of the object had collide

I am creating an complex physical object using :

    CollisionShape boxShape = CollisionShapeFactory.createBoxShape((Node) owner);
    RigidBodyControl rigidbox = new RigidBodyControl( boxShape, 1f );

Its composed by 8 boxes, I would like to know witch box had collide with the player.
There is any easy way to detect witch part of the object had colide in this case ?

Nobody ?

Theres a collision location relative to the object in the collision callback. No, theres no way to say “part x of your compound collision shape collided”.

Thanks normen for the confirmation.
I will create one rigidbody for each object separated then.