Server code:
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;

import org.apache.http.HttpResponse;


@Path("/")
public class Server {
    @POST
    @Path("/name")
    public Response name1(@Context HttpResponse response){
        response.setHeader("key","value");
        return Response.ok().header("header",
    response.toString()).entity(/*response*/"name").build();
    }

Client side code:

import java.io.IOException;
import org.apache.http.Header;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;

public class Clinet {
    public static void main(String[] args) throws IOException{
         DefaultHttpClient client = new DefaultHttpClient();
         HttpPost post = new
         HttpPost("http://localhost:8070/FinalTryClientServer15-02-19/name");
         System.out.println(response.getStatusLine());
         response.getAllHeaders();

         System.out.println(response.getAllHeaders());
         for(Header s:response.getAllHeaders()){
             System.out.println(s.toString());
         }
      System.out.println("yyy"+response.getEntity().getContent().read());
    }

 }