@Override
    public void cloneFields(Cloner cloner, Object original) {
        super.cloneFields(cloner, original);

        this.children = cloner.clone(children);

        // Only the outer cloning thing knows whether this should be nulled
        // or not... after all, we might be cloning a root node in which case
        // cloning this list is fine.
        this.updateList = cloner.clone(updateList);
    }
Called internally by com.jme3.util.clone.Cloner.  Do not call directly.
jme3-core/src/main/java/com/jme3/scene/Node.java