Try this one:
try {
StreamSource source = new StreamSource(new StringReader("<xml>blabla</xml>"));
StringWriter writer = new StringWriter();
StreamResult result = new StreamResult(writer);
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
transformer.transform(source,result);
String strResult = writer.toString();
} catch (Exception e) {
e.printStackTrace();
}