Transform XML string by XSLT

XmlUtils.java

public class XmlUtils {
    public static String XsltTransform(String xml, String xslt) throws TransformerException {
        Source xsltSource = new StreamSource(new StringReader(xslt));
        Source xmlSource = new StreamSource(new StringReader(xml));

        TransformerFactory factory = TransformerFactory.newInstance();
        Transformer transformer = factory.newTransformer(xsltSource);
        //create a StringWriter for the output
        StringWriter outWriter = new StringWriter();
        StreamResult result = new StreamResult(outWriter);
        transformer.transform(xmlSource, result);
        StringBuffer sb = outWriter.getBuffer();
        String transformedXml = sb.toString();
        return transformedXml;
    }
}