How to debug flash remoting?

Question

Hi I am using -  flashremoting.jar 1.0.52502 on tomcat.
I have a 3 year old application that is running on 1 server, it works fine there, the flash client can connect to the java tomcat server and call methods and all is well.
We are trying to stand this application up on another server, and I cant get the flash remoting to work, the server side java methods never get called (I added logging to them).
In the adobe troubleshooting it says to go to /gateway and you should get a blank page.
The weird thing is on both the server that works and the server that doesnt work, if I go there in a browser I get:
HTTP Status 404 - /flashservices/index.html
This is the same for both servers. So im not sure what to try next. Im not an expert in flash my flash guy says the client gets:  "Error opening URL"
The url in the flashvars looks good, the flashgateway.jar file is in the web-inf/lib folder , the frconfig.txt is in web-inf/classes
my web.xml has this:
<servlet>
        <servlet-name>FlashGatewayServlet</servlet-name>
        <display-name>Flash Remoting Servlet</display-name>
        <description>
            Servlet-based plugin to Flash Remoting
        </description>
        <servlet-class>
            flashgateway.controller.GatewayServlet
        </servlet-class>
        <load-on-startup>10</load-on-startup>
    </servlet>
<servlet-mapping>
        <servlet-name>FlashGatewayServlet</servlet-name>
        <url-pattern>/gateway</url-pattern>
    </servlet-mapping>
what can I check next, how can I troubleshoot this and figure out if its a client problem or a server problem, or somewhere in the middle?
thanks
Joel

Answer 1

I got on line with tech support to get them to show me how to use it. The guy hardly knew anything about it himself. From the coldfusion group and was the guy who was supposed to know. I screen shared with him and every time we tried debugging from flex it would just stop. Seems that if something goes wrong in a coldfusion library, the debugger just stops and so it is something upsteam of your break point. Of course there is nothing to show you that, but it became clear. The guy didn't have any better idea than I did what was going on. I figured that out.
If you check the docs about CF and flex, their recommendation is write it all as a CF app. debug it and then hook flex to it. Pure garbage. Anybody hear of DRY. I have dumped ever using CF on the back end. It is not an oop language. It is a tag based language for markup pages with quasi script and its ORM is so inflexible its a joke.
Went back to ruby on rails and rubyamf for my backend to flex apps (with Mate as MVC framework) and I could not be happier. Never had such an unpleasant develpment experience than working with Coldfusion as the backend to a flex app. Good luck.