Google Web Toolkit and JRUN

Hi, I'm trying to embed a GWT module in an existing CF app, and I'm using JRUN server included in Adobe CF8 Dev Edition. I'm getting a FileNotFound error and can't figure out what I'm doing wrong. I've edited WEB-INF/web.xml like so... <servlet>   <servlet-name>FNWiz</servlet-name>   <servlet-class>com.example.MyServiceImpl</servlet-class> </servlet> <servlet-mapping>   <servlet-name>FNWiz</servlet-name>   <url-pattern>/myapp/GWT_MODULES/com.example.MyApp/FNService</url-pattern> </servlet-mapping> The request from (GWT-generated) JavaScript looks like so: http://localhost:8500/myapp/GWT_MODULES/com.example.MyApp/FNService Here is the error I get: 404 java.io.FileNotFoundException   at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:94)   at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)   at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)   at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)   at jrun.servlet.http.WebService.invokeRunnable(WebService.java:172)   at jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:320)   at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)   at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:266)   at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66) Anyone have any idea what I'm doing wrong?  Thanks in advance! By the way, if I request a URL that hasn't been mapped, the error looks a little different.  Not sure if that's helpful, but I include in case it is... 404 /myapp/GWT_MODULES/com.example.MyApp/FNServiceWRONG_URL java.io.FileNotFoundException: /myapp/GWT_MODULES/com.example.MyApp/FNServiceWRONG_URL   at jrun.servlet.file.FileServlet.service(FileServlet.java:349)   at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)   at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)   at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)   at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)   at jrun.servlet.http.WebService.invokeRunnable(WebService.java:172)   at jrunx.scheduler.ThreadPool$DownstreamMetrics.invokeRunnable(ThreadPool.java:320)   at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)   at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:266)   at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)