SOAPMessage soapMessage = fac.createMessage();
SOAPPart soapPart = soapMessage.getSOAPPart();
SOAPEnvelope envelope = soapPart.getEnvelope();
envelope.addNamespaceDeclaration("cwmp", "http://cwmp.com");
SOAPBody body = envelope.getBody();
SOAPFault soapFault = body.addFault();
soapFault.addFaultReasonText("myReason", new Locale("en"));
System.out.println("Adding second text");
soapFault.addFaultReasonText("de-myReason", new Locale("de"));