code: public static Map<String, String> retrieveOverwriteElements(Element element) {
          Map<String, String> overwrites = new HashMap<String, String>();
          NodeList elementsByTagName = element.getElementsByTagNameNS("*", "overwrite");
          for (int i = 0; i < elementsByTagName.getLength(); i++) {
              Element overwrite = (Element) elementsByTagName.item(i);
              String originalBeanId = overwrite.getAttribute("originalBeanId");
              String newBeanId = overwrite.getAttribute("newBeanId");
              overwrites.put(originalBeanId, newBeanId);
          }
          return overwrites;
      }
docs: <p>retrieveOverwriteElements.</p>
  
  @param element a {@link org.w3c.dom.Element} object.
  @return a {@link java.util.Map} object.