@Override
    protected void addPhysics(PhysicsSpace space) {
        super.addPhysics(space);

        space.addCollisionListener(this);
        space.addTickListener(this);
    }
Add all managed physics objects to the PhysicsSpace.
jme3-jbullet/src/main/java/com/jme3/bullet/animation/DynamicAnimControl.java