FaultCode:Client.Error.MessageSend faultDetail:'Channel.Connect.Failed

Question

Hello Everyone,
I'm kinda sure a lot of people have to deal with the same error, but I can't solve it using explainations given in other topics. So here it is :
I'm trying to create a Flex project on Adobe Flash Builder 4.0, using J2EE, BlazeDS and Tomcat6.0.
To have a good start, I want to try some basic interactions between java & flex. For that, I created a java class with a functions returning a String, witch is called when a button is clicked in my main panel :
remoting-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<service id="remoting-service"
    class="flex.messaging.services.RemotingService">
    <adapters>
        <adapter-definition id="java-object" class="flex.messaging.services.remoting.adapters.JavaAdapter" default="true"/>
    </adapters>
    <default-channels>
        <channel ref="my-amf"/>
    </default-channels>
     <destination id="hello">
        <properties>
            <source>test.HelloWorld</source>
            <scope>session</scope>
        </properties>
    </destination>
</service>
HelloWorld.java
package test;
public class HelloWord {
    public String sayHello()
        return "Hello from Java";
project.mxml
<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
               xmlns:s="library://ns.adobe.com/flex/spark"
               xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="1000" minHeight="600">
    <s:Button x="200" y="200" label="Button4" click="callHello(event)"/>
    <fx:Declarations>
        <s:RemoteObject id="roHello"
                        destination="hello"
                        fault="onFault('roHello',event)">
            <s:method name="sayHello"
                      result="onResult(event)"
                      fault="onFault('roHello.sayHello',event)"/>           
        </s:RemoteObject>
    </fx:Declarations>
    <fx:Script>
        <![CDATA[
            import mx.controls.Alert;
            import mx.rpc.events.FaultEvent;
            import mx.rpc.events.ResultEvent;
            import mx.rpc.remoting.RemoteObject;
            private function callHello(event:MouseEvent):void
                roHello.sayHello() as String;
            private function onResult(event : ResultEvent) : void
                var retour:String;
                retour = event.result as String;
                //Alert.show(event.result.toString());
                Alert.show("success::"+retour);
            private function onFault(remoteObject : String, event : FaultEvent) : void
                Alert.show(event.fault.message);
                //Alert.show("fault");
        ]]>
    </fx:Script>
</s:Application>
When I launch my application, the button is created. But as soon as I click on it, I got the following message :
faultCode:Client.Error.MessageSend faultString:'Echec de l'envoi' faultDetail:'Channel.Connect.Failed error NetConnection.Call.Failed: HTTP: Status 404: url: 'http://localhost:8080/WebContent/messagebroker/amf''
any idea how to solve it ?

Answer 1

I've resolved my issue. Perhaps you are correct that my tokens were not resolving, but since you did not offer a way to fix that, I was still on my own. There was nothing helpful that I could find in the console or log.
I found this article, and after using his architecture (using an external config file to define the amf endpoint at runtime) I was able to connect to the back end. I was also looking for a good way to externalize information, so I recommend reading this article:
http://coenraets.org/blog/2009/03/externalizing-service-configuration-using-blazeds-and-lc ds/