Certificate publickey = keyStore.getCertificate((String) jList1.getSelectedValue());
j = ds.signUddiEntity(j, publickey, key);
ds.clear();
StringWriter sw = new StringWriter();
JAXB.marshal(j, sw);
signedXml = sw.toString();
} catch (Exception ex) {
Logger.getLogger(XmlSignatureApplet.class.getName()).log(Level.SEVERE, null, ex);