SamlAssertionWrapper samlAssertion = new SamlAssertionWrapper(samlCallback);
WSSecSAMLToken wsSign = new WSSecSAMLToken();
Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG);
WSSecHeader secHeader = new WSSecHeader();
secHeader.insertSecurityHeader(doc);
Document unsignedDoc = wsSign.build(doc, samlAssertion, secHeader);
if (LOG.isDebugEnabled()) {
LOG.debug("SAML 2 Attr Assertion (sender vouches):");