Groovy XML MarkupBuilder does not create root <?xml .... ?>

You can add xml declaration with MarkupBuilder too:

def xml = new MarkupBuilder(xmlObj)xml.mkp.xmlDeclaration(version: "1.0", encoding: "utf-8")xml.book("id":21){    name('bookname')}

xml grails groovy

You need to add it yourlsef

def xml = new StreamingMarkupBuilder().bind{        mkp.xmlDeclaration()        task {            id(_Id)            name("clean")        }    }

CodeHunter