@Override
    @SuppressWarnings("unchecked")
    public void write(JmeExporter e) throws IOException {
        super.write(e);
        e.getCapsule(this).writeSavableArrayList(new ArrayList(children), "children", null);
    }
Called internally by com.jme3.util.clone.Cloner.  Do not call directly.
jme3-core/src/main/java/com/jme3/scene/Node.java