callbackHandler.setSignAssertion(false);
config.put(ConfigurationConstants.SAML_CALLBACK_REF, callbackHandler);
WSSSecurityProperties securityProperties = ConfigurationConverter.convert(config);
OutboundWSSec wsSecOut = WSSec.getOutboundWSSec(securityProperties);
XMLStreamWriter xmlStreamWriter = wsSecOut.processOutMessage(baos, "UTF-8", new ArrayList<SecurityEvent>());
XMLStreamReader xmlStreamReader = xmlInputFactory.createXMLStreamReader(this.getClass().getClassLoader().getResourceAsStream("testdata/plain-soap-1.1.xml"));
XmlReaderToWriter.writeAll(xmlStreamReader, xmlStreamWriter);
xmlStreamWriter.close();
Document document = documentBuilderFactory.newDocumentBuilder().parse(new ByteArrayInputStream(baos.toByteArray()));