ASyncToken and IResponder

So here is a weird little problem I ran into while using the generated webservice code in Flex 3. Basically if using the ASyncToken returned by the proxy class with an IResponder, the token never triggered any of the IResponder we never got a response. We tried to use the standard code like:


var service:MyWebService = new MyWebService();
var token:ASyncToken = service.myTestFunction();
token.addResponder(this);

However the responder functions (result and fault) are never called. The easy work around is using addEventListener, but it doesn’t explain why the ASyncToken never fires. I know in Flex 3 they extended the ASyncToken to user an array of responders instead of just one, unfortunately I have not been able to trace the dispatch code to the level required to see why the following sample fails. Am I just completely misunderstanding the framework??

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" implements="mx.rpc.IResponder" layout="vertical">

<mx:Script>

<![CDATA[
import mx.rpc.events.ResultEvent;
import mx.rpc.AsyncToken;
import mx.controls.Alert;
import mx.rpc.IResponder;
import mx.rpc.events.FaultEvent;

import mx.core.mx_internal;
use namespace mx_internal;

public function result(data:Object):void
{
Alert.show("result");
}
public function fault(info:Object):void
{
Alert.show("fault");
}

public function test():void
{
var token:AsyncToken = new AsyncToken(null);
token.addResponder(this);
Alert.show("dispatching"); token.dispatchEvent(ResultEvent.createEvent(result,token,null));

ResultEvent.createEvent(result,token,null).callTokenResponders();
}


public function testWithEventListener():void
{
var token:AsyncToken = new AsyncToken(null);
Alert.show("this works");

token.addEventListener(ResultEvent.RESULT, result);

token.dispatchEvent(ResultEvent.createEvent(result,token,null));

}

]]>
</mx:Script>
<mx:Button label=”TestMe” click=”test();” />

</mx:Application>

Update 4/23:

I added some code to the above sample (highlighted in Red) to show how to get the token to actually call the responders. The weird thing is a) the method is mx_internal b) the generated webservice does not reference it. Seems like they expect you to use addEventListener instead of the token responders.