Jaxb Marshalling :
This converts your Java Object to XML and write that to "StringWriter()".
                //Result messageString = null;
                JAXBContext jc;
                StringWriter sw = null;
                try {
                        jc = JAXBContext.newInstance( "com.test.generated" );
                        Marshaller marshaller = jc.createMarshaller();  
                        sw = new StringWriter();
                        marshaller.setProperty( Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE );  
                        marshaller.marshal( yourObject, sw );
                } catch (JAXBException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                }  
Jaxb UnMarshalling :
This converts the "message" string to YourJavaObject.
                       StringReader reader = new StringReader(message);
                        jc = JAXBContext.newInstance("com.test.generated");
                        Marshaller marshaller = jc.createMarshaller();
                        javax.xml.bind.Unmarshaller unmarshaller = jc.createUnmarshaller();
                        InputStream is = new ByteArrayInputStream(message.getBytes());
                        jAXBElement = (YourJavaObject) unmarshaller.unmarshal(reader);

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