Best way to unmashal an object to a POJO in Apache Camel - apache-camel

Question

I am trying to retrieve an object out of the process method in Camel response.
However once I got an empty response in the following code:
from("timer://simpleTimer?repeatCount=1").routeId("myroute")
.setHeader("client_id", constant("abc"))
.setHeader("client_secret",constant("def"))
.setHeader(Exchange.HTTP_METHOD, constant("POST"))
.setHeader(Exchange.CONTENT_TYPE, constant("application/json"))
.setHeader(Exchange.HTTP_URI, constant(url))
.marshal().json(JsonLibrary.Gson)
.log("trying to send message")
.to(url)
.convertBodyTo(String.class)
.process(new Processor(){
#Override
public void process(Exchange exchange) throws Exception {
final Message message = exchange.getIn();
int responseCode = message.getHeader(Exchange.HTTP_RESPONSE_CODE, Integer.class);
final String responseBody = message.getBody(String.class);
System.out.println("in final block of process:" +
responseCode + ",Body class name=" + responseBody.getClass()+
"body="+responseBody);
}
);
Here body is not being printed.This is strange as the body is being printed
I need a JSON representation back and also want to store it in a object so that we can return it while returning thi object from this method.
Is there something missing?What should be added to meet the requirement?