@Override
public BXElem getDocumentElement() {
final BXNList list = getChildNodes();
for (int l = 0; l < list.getLength(); ++l) {
final BXNode n = list.item(l);
if (n.getNodeType() == Node.ELEMENT_NODE) return (BXElem) n;
}
throw Util.notExpected();
}
