Problema com salvar \\/ num json

import java.io.IOException;

import java.io.StringWriter;

import java.util.Date;

import java.util.HashMap;

import java.util.Map;

import controllers.commons.BaseService;

import dto.ReservationDTO;

import play.Play;

import <a href="http://play.libs.WS">play.libs.WS</a>;

import play.libs.WS.HttpResponse;

import play.libs.WS.WSRequest;

import play.mvc.results.RenderJson;

import com.fasterxml.jackson.databind.JsonNode;

import com.fasterxml.jackson.databind.ObjectMapper;

import com.fasterxml.jackson.databind.SerializationFeature;

import okhttp3.FormBody;

import okhttp3.HttpUrl;

import okhttp3.MediaType;

import okhttp3.OkHttpClient;

import okhttp3.Request;

import okhttp3.RequestBody;

import okhttp3.Response;

public class TestDriveSchedule  extends BaseService {	

public static void saveTestDriveSchedule() {

OkHttpClient client = new OkHttpClient.Builder().build();

String urlSave = Play.configuration.getProperty(“testdrive.url”)+Play.configuration.getProperty(“testdrive.saveSchedule.url”);

HttpUrl url = HttpUrl.parse(urlSave).newBuilder().build();

String oauthToken = session.get(“oauthToken”);

Request request = new Request.Builder()

.method(“OPTIONS”, null)

.url(url.toString())

.header(“Accept”, “application/json”)

.header(“Authorization”, "Bearer " + oauthToken)

.header(“APIKey”, Play.configuration.getProperty(“testdrive.api.key”))

.header(“X-CSRF-Token”, “fetch”)

.build();

Response response;

try {

response = client.newCall(request).execute();

String csrfToken = response.header(“X-CSRF-Token”);

ObjectMapper mapper = new ObjectMapper();

ReservationDTO dto = createReservationObj(new Date());

StringWriter stringEmp = new StringWriter();

mapper.configure(SerializationFeature.INDENT_OUTPUT, true);

mapper.writeValue(stringEmp, dto);

RequestBody body = RequestBody.create(MediaType.get(“application/json”), stringEmp.toString());

JsonNode nodeR = mapper.readTree(stringEmp.toString());

Request request2 = new Request.Builder()
        		
        .url(url.toString())
        .header("Content-Type", "application/json")
        .header("Accept", "application/json")
        .header("Authorization", "Bearer " + oauthToken)    
        .header("APIKey", Play.configuration.getProperty("testdrive.api.key"))
        .header("X-CSRF-Token", csrfToken)
        .post(body)
        .build();                
        
        response = client.newCall(request2).execute();
        JsonNode node = mapper.readTree(response.body().string()); 
        renderJSON(node);
	} catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
		renderJSON(e.getMessage());
	}
      
}

private static ReservationDTO createReservationObj(Date date) {
	date.setTime(1545350400000L);
	ReservationDTO reservation = new ReservationDTO();
    reservation.IBukrs = "0001";
    reservation.IStatus = "1";
    reservation.IKunnr = "B05AC00001";
    
    ReservationDTO.IReserv iReserv = reservation.new IReserv();
    iReserv.Zcvin = "9BHBH51DBCP000248";
    iReserv.Partner = "248";
    iReserv.Zccuno = "1111";
    iReserv.Zconpo = "H";
    String td = String.format("\\/Date(%d)\\/", date.getTime());
    
    iReserv.Rdate = td.toString();
    iReserv.Rtime5 = "X";
    iReserv.Status = "R";
    iReserv.ZcommtR = "teste";
    iReserv.Kunnr = "B05AC00001";

    reservation.IReserv = iReserv;    

    return reservation;
}