Simple Servlet using JEE7 JsonObjectBuilder

gistfile1.txt

package mypackage;

import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;

import javax.json.Json;
import javax.json.JsonObject;
import javax.json.JsonObjectBuilder;
import javax.json.JsonWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class JsonTester
 */
@WebServlet("/JsonTester")
public class JsonTester extends HttpServlet {
  private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public JsonTester() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		PrintWriter out = response.getWriter();
		
		JsonObjectBuilder builder = Json.createObjectBuilder();
		builder.add("person", Json.createObjectBuilder().add("firstName", "Michael").add("lastName", "Jo"));
		JsonObject result = builder.build();
		StringWriter sw = new StringWriter();
		try(JsonWriter writer = Json.createWriter(sw))
		{
				writer.writeObject(result);
		}	
		
		out.print(sw.toString());
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}

}