Error deploying on Tomcat

[VaL]

Hi,

I have been trying to deploy my RPC app on Tomcat for 1 week. I always
have the same error and I really don't know where it could come from.
It could be a basic error, but as I don't have any experience with
Tomcat I can't resolve it.

Here is how I built my app:
I created a Tomcat webapp called SGFace (with Eclipse) that I put in
the Tomcat webapps folder. Then I created two folders "lib" and
"classes" in SGFace/WEB-INF where I copied respectively "gwt-
servlet.jar" and the folder "com" there was in the "bin" folder of my
GWT app (let's call it SGF). I also created a web.xml file in the WEB-
INF/ folder. And finally, I compiled my code with SGF-compile and
copied all the output files contained in SGF/www/com.ucsd.SGF in the
SGFace/ folder.

So in the end, I have something like that:
webapps/SGFace/ *.js ; *.html ; *.xml + the 4 files that Eclipse
created for the Tomcat project
(.classpath, .cvsignore, .project, .tomcatplugin)
webapps/SGFace/WEB-INF/web.xml
webapps/SGFace/WEB-INF/lib/com/ucsd/client ; public ; server
webapps/SGFace/WEB-INF/classes/gwt-servlet.jar

And my web.xml looks like:

<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app>

<display-name>GWT</display-name>
<description>
GWT example
</description>

<servlet>
<servlet-name>FileTool</servlet-name>
<servlet-class>com.ucsd.server.FileToolImpl</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>FileTool</servlet-name>
<url-pattern>/FileTool</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>SGF.html</welcome-file>
</welcome-file-list>

</web-app>


My SGF.gwt.xml is like that:

<module>

<!-- Inherit the core Web Toolkit stuff. -->
<inherits name='com.google.gwt.user.User'/>
<inherits name='org.gwtwidgets.WidgetLibrary'/>

<!-- Specify the app entry point class. -->
<entry-point class='com.ucsd.client.SGF'/>

<servlet class="com.ucsd.server.FileToolImpl" path="/FileTool"/>

</module>



When I go to http://localhost:8080/SGFace with my web browser the page
get stuck on the first RPC (nothing else happens, even just displaying
buttons or text).
The Tomcat log says:

20 mars 2008 02:35:05 org.apache.catalina.core.ApplicationContext log
INFO: ContextListener: contextInitialized()
20 mars 2008 02:35:05 org.apache.catalina.core.ApplicationContext log
INFO: SessionListener: contextInitialized()
20 mars 2008 02:35:25 org.apache.catalina.core.ApplicationContext log
INFO: La servlet FileTool est marqué comme indisponible
20 mars 2008 02:35:25 org.apache.catalina.core.ApplicationContext log
GRAVE: Error loading WebappClassLoader
delegate: false
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
org.apache.catalina.loader.StandardClassLoader@54172f
com.ucsd.server.FileToolImpl
java.lang.ClassNotFoundException: com.ucsd.server.FileToolImpl
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:
1360)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:
1206)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:
1083)
at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:
806)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
129)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:
175)
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.connector.CoyoteAdapter.service(CoyoteAdapter.java:
286)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
844)
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(Unknown Source)
20 mars 2008 02:35:25 org.apache.catalina.core.StandardWrapperValve
invoke
GRAVE: Exception lors de l'allocation pour la servlet FileTool
java.lang.ClassNotFoundException: com.ucsd.server.FileToolImpl
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:
1360)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:
1206)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:
1083)
at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:
806)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
129)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:
175)
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.connector.CoyoteAdapter.service(CoyoteAdapter.java:
286)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
844)
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(Unknown Source)


Could anyone tell me what's going wrong?
Thanks for your help,


VaL

PS: I also tried without creating the webapp via Eclipse (just
creating the folders and copying the same files into the same folders
as I said, but Tomcat tells me that the ressource is not available. It
doesn't even display something!)

[walden]

VaL,

WEB-INF/lib is where you deploy your *.jar files
WEB-INF/classes is where you deploy your *.class files

You appear to have it backwards.

Walden

> When I go tohttp://localhost:8080/SGFacewith my web browser the page

> get stuck on the first RPC (nothing else happens, even just displaying
> buttons or text).
> The Tomcat log says:
>
> 20 mars 2008 02:35:05 org.apache.catalina.core.ApplicationContext log
> INFO: ContextListener: contextInitialized()
> 20 mars 2008 02:35:05 org.apache.catalina.core.ApplicationContext log
> INFO: SessionListener: contextInitialized()
> 20 mars 2008 02:35:25 org.apache.catalina.core.ApplicationContext log
> INFO: La servlet FileTool est marqué comme indisponible
> 20 mars 2008 02:35:25 org.apache.catalina.core.ApplicationContext log
> GRAVE: Error loading WebappClassLoader
>   delegate: false
>   repositories:
>     /WEB-INF/classes/
> ----------> Parent Classloader:
> org.apache.catalina.loader.StandardClassLoader@54172f
>  com.ucsd.server.FileToolImpl
> java.lang.ClassNotFoundException: com.ucsd.server.FileToolImpl
>         at

> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.ja­va:
> 1360)
>         at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.ja­va:

> 1206)
>         at
> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:
> 1083)
>         at
> org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:
> 806)
>         at

> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j­ava:
> 129)
>         at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j­ava:

> 175)
>         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.connector.CoyoteAdapter.service(CoyoteAdapter.java:
> 286)
>         at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
> 844)
>         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(Unknown Source)
> 20 mars 2008 02:35:25 org.apache.catalina.core.StandardWrapperValve
> invoke
> GRAVE: Exception lors de l'allocation pour la servlet FileTool
> java.lang.ClassNotFoundException: com.ucsd.server.FileToolImpl
>         at

> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.ja­va:
> 1360)
>         at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.ja­va:

> 1206)
>         at
> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:
> 1083)
>         at
> org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:
> 806)
>         at

> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j­ava:
> 129)
>         at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j­ava:

> 175)
>         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:

[VaL]

Oops, sorry I made a mistake when I wrote.
I obviously meant that I have the gwt-servlet.jar in the WEB-INF/lib
folder and my .class files in the WEB-INF/classes.

Nonetheless, thank you for answering :)

> > When I go tohttp://localhost:8080/SGFacewithmy web browser the page