@Override
    public Control cloneForSpatial(Spatial spatial) {
        throw new UnsupportedOperationException();
    }
Clone this control for a different spatial. No longer used as of JME 3.1.

@param spatial the spatial for the clone to control (or null)
@return a new control (not null)
jme3-jbullet/src/main/java/com/jme3/bullet/control/RigidBodyControl.java