retreiving object from controller in spring mvc via ajax call with no data

I have one jsp page, on load of jsp, two radio button is there, on click of first radio button, i am doing an ajax call with no data and it will go to controller and method will return a list object but it is not even hitting the controller method

My ajax code is like this :

 $("#radio1").click(function(){
    alert('success');   
    debugger;
    $.ajax({
        method : 'GET',
        url : 'ConnectionStringDetails',
        data: {},
        success: function(data){   
            alert('True');

        },
        error: function() {
            alert('unsuccessfull');
            }
    });   

and controller method is like this:

@RequestMapping("/ConnectionStringDetails")
@ResponseBody
public List<ConnectionString> ConnectionStringDetails()
{

    List<ConnectionString> conndetail=null;
    System.out.println("ConnectionStringDetails");

        conndetail=bdpService.getSourcesData();

    return conndetail;
}