Dynamic Data Fetch for Select Options in JQgrid

{name:'Role',index:'Role',width:40, editable: true,edittype:"select",formatter: 'select',
editoptions:{readonly:true, dataUrl: "FetchDataServlet?Fetch_Data=Manage_User_Role",
buildSelect: function(data) {
var response = jQuery.parseJSON(data);
var s = '';
alert(data + '');
if (response && response.length) {
for (var i = 0, l=response.length; i'+ri+'';
}
}
return s + "";
}
}},



public final JSONArray FetchDataForManageUserRole()
{
List allRoleNames = RolesTable.getAllRoleNames(hibernateSession);
net.sf.json.JSONArray responcedata = new net.sf.json.JSONArray();

for (String roleName : allRoleNames) {
responcedata.put(roleName);
}
return responcedata;
}