Writing JAXRPC Object to XML Stream  by using LiteralObjectSerializerBase

I am trying to write the JAX-RPC object to a file before I dispatch it to the service provider. What I currently have is :
QName type = new QName("http://solms.co.za/utils/appsupport", "LicenseRequest");
XMLWriter writer = XMLWriterFactory.newInstance().createXMLWriter(System.out); 
LicenseRequest_LiteralSerializer serializer = new LicenseRequest_LiteralSerializer(type, "", AppSupportService_SerializerRegistry.ENCODE_TYPE);
      serializer.initialize(new InternalTypeMappingRegistryImpl(new AppSupportService_SerializerRegistry().getRegistry()));
      serializer.doSerialize(licenseRequest,writer,new SOAPSerializationContext());But it does not work. I have the feeling I am not far off, but still mis something.
Thanks

Convert the method signature to a string (such as it is in the class file), and persist that.

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