> java.lang.ClassNotFoundException: com.i2s.webMonster.client.MsgService

You didn't deploy this class.



On Wed, Feb 18, 2009 at 3:08 PM, scarlson <[email protected]> wrote:
>
>
>  Hello All -- I've been to the Tomcat forums already originally
> thinking it was a servlet container issue. I don't think this is the
> case anymore.
>
> I have made a simple generic gwt rpc module..  When I run in hosted
> mode, everything is great. When I deploy my WAR file, the client side
> stuff works, but no servlet. Does anything jump out??  I've been
> fighting this for a couple of days.. I keep coming back to the
> conclusion that my container is configured wrong.
>
> A bit more info about container.. I'm running Ubuntu 8.10 / Apache2 /
> tomcat6 / mod-proxy
> Apache and Tomcat appear fully functional.. I have also successfully
> added a proxy to take me to port 8080 when calling my webapp. I've
> posted similar data to TomCat forum, and judging from responses, I
> have the container properly configured?
>
> I've also tried re-arranging my WEB-INF/ structure...
> It was original WEB-INF/classes/MsgServiceImpl.class
> not it is WEB-INF/classes/com/i2s/webMonster/server/
> MsgServiceImpl.class
>
> I don't think I have a clue at this point...
>
> Thanks in Advance, Attached below are my code/logs
>
> -Scarlson
>
> --- Tomcat localhost log file output ---------
> SEVERE: Allocate exception for servlet MsgService
> java.lang.ClassNotFoundException: com.i2s.webMonster.client.MsgService
>        at org.apache.catalina.loader.WebappClassLoader.loadClass
> (WebappClassLoader.java:1387)
>        at org.apache.catalina.loader.WebappClassLoader.loadClass
> (WebappClassLoader.java:1233)
>        at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
>        at java.lang.ClassLoader.defineClass1(Native Method)
>        at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
>        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:
> 124)
>        at org.apache.catalina.loader.WebappClassLoader.findClassInternal
> (WebappClassLoader.java:1847)
>        at org.apache.catalina.loader.WebappClassLoader.findClass
> (WebappClassLoader.java:890)
>        at org.apache.catalina.loader.WebappClassLoader.loadClass
> (WebappClassLoader.java:1354)
>        at org.apache.catalina.loader.WebappClassLoader.loadClass
> (WebappClassLoader.java:1233)
>        at org.apache.catalina.core.StandardWrapper$1.run
> (StandardWrapper.java:1077)
>        at java.security.AccessController.doPrivileged(Native Method)
>        at org.apache.catalina.core.StandardWrapper.loadServlet
> (StandardWrapper.java:1073)
>        at org.apache.catalina.core.StandardWrapper.allocate
> (StandardWrapper.java:808)
>        at org.apache.catalina.core.StandardWrapperValve.invoke
> (StandardWrapperValve.java:129)
>        at org.apache.catalina.core.StandardContextValve.invoke
> (StandardContextValve.java:191)
>        at org.apache.catalina.core.StandardHostValve.invoke
> (StandardHostValve.java:128)
>        at org.apache.catalina.valves.ErrorReportValve.invoke
> (ErrorReportValve.java:102)
>        at org.apache.catalina.core.StandardEngineValve.invoke
> (StandardEngineValve.java:109)
>        at org.apache.catalina.valves.AccessLogValve.invoke
> (AccessLogValve.java:568)
>        at org.apache.catalina.connector.CoyoteAdapter.service
> (CoyoteAdapter.java:286)
>        at org.apache.coyote.http11.Http11Processor.process
> (Http11Processor.java:845)
>        at org.apache.coyote.http11.Http11Protocol
> $Http11ConnectionHandler.process(Http11Protocol.java:583)
>        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:
> 447)
>        at java.lang.Thread.run(Thread.java:619)
> ---------------------snip
>
> ----------- web.xml   -----------------
> <?xml version="1.0" encoding="UTF-8"?>
> <web-app>
>
>  <!-- Standard Action Servlet Configuration -->
>  <servlet>
>   <servlet-name>MsgService</servlet-name>
>   <servlet-class>com.i2s.webMonster.server.MsgServiceImpl</servlet-
> class>
>  </servlet>
>
>  <!-- Standard Action Servlet Mapping -->
>  <servlet-mapping>
>   <servlet-name>MsgService</servlet-name>
>   <url-pattern>/MsgService</url-pattern>
>  </servlet-mapping>
>
> </web-app>
> ------------------------ snip --------------------
>
>
> ----------- MsgService.java --------------------------
> package com.i2s.webMonster.client;
>
> import com.google.gwt.core.client.GWT;
> import com.google.gwt.user.client.rpc.RemoteService;
> import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
>
> @RemoteServiceRelativePath("MsgService")
> public interface MsgService extends RemoteService {
>        /**
>         * Utility class for simplifying access to the instance of async
> service.
>         */
>        public String getMsg();
>
>        public static class Util {
>                private static MsgServiceAsync instance;
>                public static MsgServiceAsync getInstance(){
>                        if (instance == null) {
>                                instance = GWT.create(MsgService.class);
>                        }
>                        return instance;
>                }
>        }
> }
>
> -------------------- snip
>
> ----------- MsgServiceAsync.java --------------------------
> package com.i2s.webMonster.client;
>
> import com.google.gwt.user.client.rpc.AsyncCallback;
>
> public interface MsgServiceAsync {
>        /**
>         * Utility class for simplifying access to the instance of async
> service.
>         */
>        public void getMsg(AsyncCallback<String> callback);
> }
>
> ------------------ snip
>
> ----------- MsgServiceImpl.java --------------------------
> package com.i2s.webMonster.server;
>
> import com.i2s.webMonster.client.MsgService;
>
> public class MsgServiceImpl extends RemoteServiceServlet implements
> MsgService {
>
>        @Override
>        public String getMsg() {
>
>                // TODO Auto-generated method stub
>                return "Gotcha!";
>        }
> }
>
> --------------snip
>
>
> ----------- Here is what the call to the servlet looks like
> private void getServerMsg() {
>                MsgServiceAsync msgService = MsgService.Util.getInstance();
>        ServiceDefTarget endpoint = (ServiceDefTarget)msgService;
>        endpoint.setServiceEntryPoint(GWT.getModuleBaseURL() +
> "MsgService");
>
>        AsyncCallback callback = new AsyncCallback() {
>                public void onSuccess(Object result) {
>                        Window.alert((String) result);
>                }
>                 public void onFailure(Throwable caught) {
>                    Window.alert("Server request falure.");
>                }
>            };
>            msgService.getMsg(callback);
>        }
> ---------------- snip
>
> >
>

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