referenced by http://blog.shenie.info/post/1688099998/convert-gpathresult-to-string-without-tag0

gpathresult-to-string.groovy

public String convertToString(GPathResult doc) {
    def defaultNamespace = doc.lookupNamespace('')

    if (defaultNamespace) {
        def docWithNamespace = {
            mkp.declareNamespace("": defaultNamespace)
            out << doc
        }
        return new StreamingMarkupBuilder().bind(docWithNamespace)
    } else {
        return XmlUtil.serialize(doc as GPathResult)
    }
}