docs: protected void initMappings(Element root, CmsXmlContentDefinition contentDefinition) throws CmsXmlException {
  
          Iterator<Element> i = CmsXmlGenericWrapper.elementIterator(root, APPINFO_MAPPING);
          while (i.hasNext()) {
              // iterate all "mapping" elements in the "mappings" node
              Element element = i.next();
              // this is a mapping node
              String elementName = element.attributeValue(APPINFO_ATTR_ELEMENT);
              String maptoName = element.attributeValue(APPINFO_ATTR_MAPTO);
              String useDefault = element.attributeValue(APPINFO_ATTR_USE_DEFAULT);
              if ((elementName != null) && (maptoName != null)) {
                  // add the element mapping
                  addMapping(contentDefinition, elementName, maptoName, useDefault);
              }
          }
      }