Arquivo json usando o curl não valida na api restful

HashMap<String, String> mapaContato = new HashMap<>();
        mapaContato.put("contact-list_code", "1");
        mapaContato.put("contact_code", "1");
        JSONObject json = new JSONObject(mapaContato);
        String token = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";

        System.out.println(json.toString());
        
        String command = "curl --header "auth-token: " + token + "" --header "Content-Type: application/json; charset=utf-8" --data "" + json.toString() + "" https://api.dinamize.com/emkt/contact/get";

        System.out.println(command);
        try {
            Process process = Runtime.getRuntime().exec(command);
            // retorno            
            Reader in = new BufferedReader(new InputStreamReader(process.getInputStream(), "utf-8"));
            StringBuilder sb = new StringBuilder();
            for (int c; (c = in.read()) >= 0;) {
                sb.append((char) c);
            }
            System.out.println("Teste retorno: " + sb.toString());
            JSONObject json2 = new JSONObject(sb.toString());
            System.out.println("Teste leitura: " + json2.toString());
            // resposta
            /*BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String line;
            String response=null;
            while ((line = reader.readLine()) != null) {
                response += line;
            }
            System.out.println(response);*/
            process.destroy();
        } catch (IOException ex) {
            Logger.getLogger(ComercialBean.class.getName()).log(Level.SEVERE, null, ex);
        }