builder.setUserInfo("wernerd", "verySecret");
log.info("Before adding UsernameToken PW Digest....");
Document doc = unsignedEnvelope.getAsDocument();
WSSecHeader secHeader = new WSSecHeader();
secHeader.insertSecurityHeader(doc);
Document signedDoc = builder.build(doc, secHeader);
/*
* convert the resulting document into a message first. The toAxisMessage()
* method performs the necessary c14n call to properly set up the signed
* document and convert it into a SOAP message. After that we extract it