ent information items are added as instances of
 <a href="../JAXBElement.html" title="class in jakarta.xml.bind"><code>JAXBElement</code></a> or instances with a class that is annotated with
 &#64;XmlRootElement.</li>
 <li>Unknown content that is not be bound to a Jakarta XML Binding mapped class is inserted
 as <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.xml/org/w3c/dom/Element.html?is-external=true" title="class or interface in org.w3c.dom" class="externalLink"><code>Element</code></a