java - POJO with list of POJO to JSON display size and index -

so i've got 2 pojos:

public class requestdisplayinfo {     private int nombrepersonne;     private string courrielorganisateur;     private requeststatus statutdemande;     private string salleassigne;      getters/setters..... 

and

public class requestsdisplayinfo {     private list<requestdisplayinfo> acceptees = new arraylist<requestdisplayinfo>();     private list<requestdisplayinfo> autres = new arraylist<requestdisplayinfo>();      getters/setters..... 

when return second class, :

{     - acceptees: [1]             0:  {                 organizeremail: "org"                 participants: 45                 requeststatus: "accepted"                 roomname: "plt-2828"             }     - autres: [2]             -0:  {                 organizeremail: "org"                 participants: 2                 requeststatus: "waiting"             }             -1:  {                 organizeremail: "org"                 participants: 3                 requeststatus: "waiting"             } } 

here how return

    @get     @path("/{email}")     @produces(mediatype.application_json)     @consumes({ "text/plain, text/html" })     public requestbyemaildisplay displaybyemail(@pathparam("email") string email) {         list<request> requests = requestservice.displaybyemail(email);         requestbyemaildisplay requestbyemaildisplay = new requestbyemaildisplay();         requests.foreach(request -> {             if (request.isaccepted()) {                 requestbyemaildisplay.getacceptees().add(request.buildbyid());             }         });         requests.foreach(request -> {             if (!request.isaccepted()) {                 requestbyemaildisplay.getautres().add(request.buildbyid());             }         });         return requestbyemaildisplay;     } 

which want... except fact displays size of list , index of each element.

edit i'm using jersey/jackson , directly returning in resources @produces(mediatype.application_json)

does know why , how remove it?