Is there any way to set up spring MVC to receive an Object with subobject?

Question

I have in my project a controller that receives data via jquery. But this data is converted into an object that contains subobject. that is:

class Teste{
    String a;
    String b;
    Test2 teste2;
}

class Test2{
    String c;
    String d;
}

No controller is receiving with the following code.

    @ResponseBody
    @RequestMapping(value = "/novo",
            method = RequestMethod.POST,
            consumes = MediaType.APPLICATION_JSON_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE
    )
    public Teste cadastrar(Teste teste) {
        System.out.println("\n\n*******************TESTE*******************\n" + teste);
        return teste;
    }

This way the data is only sent by params query. So I cannot pass the subobjects. The ajax function used is the following.

$.ajax({
    type: 'POST',
    url: '/teste/novo?' + jQuery.param(teste),
    contentType: 'application/json',
    data: JSON.stringify(product),
    success: function (data) {
        //innerOptionsInHTML(data);
    }
}).done(function () {
    console.log("success");
}).fail(function () {
    console.log("error");
});

This way the subobjects are not passed to the server. In fact it only started to be passed when using Queryparams. Before that the function sent with application_json type. But it still didn’t work.

All this using spring MVC and need to pass the subobjects.

It would be more interesting if you could configure Spring MVC to receive the object via javascript in the form:

{
    a:"a",
    b:"b",
    teste:{
        c:"c",
        d:"d"
    }
}

without using params query.