Vaadin REST response and UIDL.

Hi everyone. I am trying to create JavaEE application with RESTful servicies and Vaadin UI.
HTTP GET request through brouser URI gives me correct JSON array. Binding this REST method with Vaadin grid works fine too.
But in web inspector I cant see this request like it happens with JS frontend - there are only UIDL resourse with something that looks like my JSON.
JSON:
[{“id”:1,“name”:“test1”},{“id”:2,“name”:“test2”},{“id”:3,“name”:“test3”}]

UIDL:

for (;:wink:
;
[{
“syncId”: 3,
“clientId”: 3,
“changes”: ,
“state”: {
“92”: {
“sortable”: true
},
“94”: {
“sortable”: true
}
},
“types”: {
“88”: “4”,
“92”: “3”,
“94”: “3”
},
“hierarchy”: {
“88”: ,
“92”: [“93”]
,
“94”: [“95”]

},
"rpc": [["88", "com.vaadin.shared.data.DataCommunicatorClientRpc", "reset", [3]

], [“88”, “com.vaadin.shared.data.DataCommunicatorClientRpc”, “setData”, [0, [{
“k”: “1”,
“d”: {
“92”: “1”,
“94”: “test1”
}
}, {
“k”: “2”,
“d”: {
“92”: “2”,
“94”: “test2”
}
}, {
“k”: “3”,
“d”: {
“92”: “3”,
“94”: “test3”
}
}]]]],
“meta”: {},
“resources”: {},
“timings”: [703, 0]

}]

Is my REST works correct with Vaadin? Wanna figure out how it works.