JSONObject obj = new JSONObject("{\"alice\":{\"bob\": \"a\"}}");
AbstractXMLStreamReader streamReader = new MappedXMLStreamReader(obj);
XMLInputFactory readerFactory = XMLInputFactory.newInstance();
XMLEventReader eventReader = readerFactory.createXMLEventReader(streamReader);

Document document = XMLUtils.createDocument();
DOMResult result = new DOMResult(document);
XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
XMLEventWriter eventWriter = outputFactory.createXMLEventWriter(result);
eventWriter.add(eventReader);
eventWriter.close();

result.getNode();