@Override
    public void cloneFields(Cloner cloner, Object original) {
        this.min = cloner.clone(min);
        this.len = cloner.clone(len);
    }
Called internally by com.jme3.util.clone.Cloner.  Do not call directly.
jme3-core/src/main/java/com/jme3/effect/shapes/EmitterBoxShape.java