Java Utililty Methods XML Element Get by ID

Element element = document.getDocumentElement();
NodeList children = element.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
    Node child = children.item(i);
    if ((child.getNodeType() == Node.ELEMENT_NODE)
            && elementId.equals(((Element) child).getAttribute(ID_ATTRIBUTE)))
        return (Element) child;
return null;

if (!idMap.containsKey(id)) {
    registerIDs(doc, doc.getDocumentElement(), idMap);
return idMap.get(id);

return getElementById(document.getDocumentElement(), id);

return getElementById(dom, id, "*"); 

NodeList children = dom.getElementsByTagNameNS("*", localElementName); 
for (int i = 0; i < children.getLength(); i++) {
    Element element = (Element) children.item(i);
    if (element.getAttribute("id").equals(id)) {
        return element;
return null;
...