final XmlResourceStore xmlResourceStore = new XmlResourceStore();
final RootXmlResource xmlResource = new RootXmlResource( xmlResourceStore );
final XmlConversionTestElement elementOnXml = XmlConversionTestElement.TYPE.instantiate( xmlResource );
xmlResource.save();
final Element xmlElement = service.convert( elementOnXml, Element.class );
assertNotNull( xmlElement );
assertSame( xmlElement, xmlResource.getXmlElement().getDomNode() );