Core/src/main/java/org/openestate/io/core/XmlUtils.java
public static void replaceNamespace(Document doc, String newNamespaceURI) {
        NodeList children = doc.getChildNodes();
        for (int i = 0; i < children.getLength(); i++) {
            XmlUtils.replaceNamespace(doc, children.item(i), newNamespaceURI);
        }
    }
public static void replaceNamespace(Document doc, String newNamespaceURI) {
        NodeList children = doc.getChildNodes();
        for (int i = 0; i < children.getLength(); i++) {
            XmlUtils.replaceNamespace(doc, children.item(i), newNamespaceURI);
        }
    }
Replace the namespace of any {@link Element} in a {@link Document}.

@param doc             the document to update
@param newNamespaceURI the new namespace URI