/rhino/xmlimplsrc/org/mozilla/javascript/xmlimpl/XmlNode.java
rv.dom = dom;
rv.dom = node;
} private static XmlNode createImpl(Node node) { if (node instanceof Document) throw new IllegalArgumentException(); XmlNode rv = null; if (getUserData(node) == null) { rv = new XmlNode(); <extra_id_0> setUserData(node, rv); } else { rv = getUserData(node); } return rv; }