@Override
    public void setScale(Vector3f scale) {
        super.setScale(scale);
        ((GImpactMeshShape) cShape).updateBound();
    }
creates a jme mesh from the collision shape, only needed for debugging

@return a new Mesh
jme3-jbullet/src/main/java/com/jme3/bullet/collision/shapes/GImpactCollisionShape.java