Convert String To XML Document

public Document ConvertStringToDocument(String xmlString) {
        Document xmlDocument = null;
        try {
            DocumentBuilderFactory docfactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = docfactory.newDocumentBuilder();
            InputSource iSource = new InputSource(new StringReader(xmlString));
            xmlDocument = builder.parse(iSource);
        } catch (Exception ex) {
           
        }
        return xmlDocument;
    }