Beginner: How to use ResultEvent?

Question

I am using BlazeDS to return a Java object called User. The User object has two properties username and dob. In my ActionScript function I have:
private function showReturnedUser(event:ResultEvent):void {
    MonsterDebugger.trace(this, "showReturnedUser [" + event.result.username.toString() + "] [" + event.result.dob.toString() + "]");
    var user:User = event.result.user as User;
    MonsterDebugger.trace(this, "user is [" + user + "]")
I get the username and dob printed out from the first debug statement but what I would like to do is to get the actual User object that was returned, currently my:
var user:User = event.result.user as User;
is null. Is that possible to get the actual User object or do I need to manually recreate the User object in Flex in order to use it? I already have the User class in Flex defined in this way:
package com.adobe.remoteobject {
    [Bindable] [RemoteClass(alias="com.adobe.remoteobject.User")]
    public class User{
        public var username:String = "";
        public var dob:Date = new Date();
Thanks for any suggestions.

Answer 1

Thanks for the reply but I had tried that earlier and hadn't gotten anywhere. I guess that means the problem is elsewhere. I know the User object is returned from the server and something certainly arrives in the showReturnedUser(event:ResultEvent) function as I can print out both of:
event.result.username.toString()
event.result.dob
I also tried adding getters and setters to Flex User object which now looks like this:
package com.adobe.remoteobject {
    [Bindable] [RemoteClass(alias="com.adobe.remoteobject.User")]
    public class User{
        public var username:String = "";
        public var dob:Date = new Date();
        public function User(username:String , dob:Date) {
            this.username = username;
            this.dob = dob;
        public function setUsername(username:String):void {
            this.username = username;
        public function setDob(dob:Date):void {
            this.dob = dob;
        public function getUsername():String {
            return this.username;
        public function getDob():Date {
            return this.dob;
Sorry, I am not sure what other bits of code may be useful. One thing I noticed was that I could delete the:
[Bindable] [RemoteClass(alias="com.adobe.remoteobject.User")]
From the Flex User object and it made no difference - that seems a little odd.