Hi Gregor,
Yup, that fixed it. Stupid newbie error - fortunately the sort of
error that only gets made once. Now I can start putting back in the
server functionality that I took out to debug it.
Thank you very much for your help,
Keith
On Fri, Sep 19, 2008 at 7:45 AM, gregor <[EMAIL PROTECTED]> wrote:
>
> Hi Keith,
>
> Looking at your deployment structure:
>
> The web server has the directory structure:
> apache-tomcat-5.5.25/webapps
> CorpusSearch
> ... a pile of html, rpc, js, html, css, and...
> web.xml
> WEB-INF
> classes
> CorpusSearch.class
> CorpusSearchReturns.class
> CorpusSearchServiceAsync.class
> CorpusSearchData.class
> CorpusSearchService.class
> CorpusServiceImpl.class
> web.xml
> lib
> gwt-servlet.jar
> web.xml
>
> the package structure ca.KeithFuller.server seems to be missing which
> would explain why you get a ClassNotFoundException for
> ca.KeithFuller.server.CorpusServiceImpl. I think you should copy the
> entire directory structure under WEB-INF\classes.
>
> Also I would recommend you take a little time to make an Ant build
> script that creates a WAR file for you application and copies it
> straight to your Tomcat deployment directory where it will
> automatically redeploy. This will kill problems like this (because Ant
> doesn't make mistakes) and save you a lot of time in the long run.
> There are lots of examples of how to do this in the group - just
> search for ant build WAR.
>
> regards
> gregor
>
>
>
>
> On Sep 18, 4:40 pm, Keith <[EMAIL PROTECTED]> wrote:
>> Hi all,
>>
>> First off, I am a new user and have built a very simple application.
>> It works fine under hosted mode. It compiles with no errors. When I
>> deploy it to the web server and point a browser at it, it throws a
>> ClassNotFoundException. I suspect this is a really simple problem
>> (probably caused by a really stupid error). This is driving me crazy
>> and I would really appreciate ANY help or suggestions anyone could
>> throw my way.
>>
>> I have included a lot of error logs, copies of web.xml, directory
>> structures etc. below.
>>
>> Trying to work through this is a learning experience, but I am
>> stumped. The fact that the server is able to sort out the URL sent
>> from the client enough to know the name of the object is
>> ca.KeithFuller.server.CorpusServiceImpl suggests to me that the server
>> is finding the web.xml file, which suggests that it should be able to
>> find the object since I believe that WEB-INF/classes is always on the
>> search path. The file CorpusServiceImpl.class is in WEB-INF/classes,
>> and the corresponding java file starts with:
>>
>> package ca.KeithFuller.server;
>>
>> import java.util.*; // for Scanner
>> import java.io.*; // for println
>>
>> import ca.KeithFuller.client.CorpusSearchReturns;
>> import ca.KeithFuller.client.CorpusSearchService;
>>
>> import com.google.gwt.user.server.rpc.RemoteServiceServlet;
>>
>> public class CorpusServiceImpl extends RemoteServiceServlet
>> implements CorpusSearchService
>> {
>> ...
>>
>> A whole pile of details follow:
>>
>> I use GWT 1.4.61
>>
>> I use Eclipse 3.2.2
>>
>> My webserver uses Linux, Tomcat and Apache.
>>
>> I use FireFox 3.0.1 and the URL
>> ishttp://www.keithfuller.ca:9108/CorpusSearch/CorpusSearch.html
>>
>> The client code contains:
>> ...
>> // Create the proxy object
>> final CorpusSearchServiceAsync serviceProxy =
>> (CorpusSearchServiceAsync)
>> GWT.create(CorpusSearchService.class);
>>
>> // Cast the proxy object to ServiceDefTarget
>> String serviceUrl = GWT.getModuleBaseURL() + "corpus-search";
>> // if (GWT.isScript()){
>> // serviceUrl = "/corpus-search";
>> // }
>>
>> ((ServiceDefTarget)serviceProxy).setServiceEntryPoint(serviceUrl);
>> ...
>>
>> The localhost.2008-09-18.log file contains:
>> Sep 18, 2008 10:21:04 AM org.apache.catalina.core.ApplicationContext
>> log
>> INFO: Marking servlet corpus-search as unavailable
>> Sep 18, 2008 10:21:04 AM org.apache.catalina.core.ApplicationContext
>> log
>> SEVERE: Error loading WebappClassLoader
>> delegate: false
>> repositories:
>> /WEB-INF/classes/
>> ----------> Parent Classloader:
>> [EMAIL PROTECTED]
>> ca.KeithFuller.server.CorpusServiceImpl
>> java.lang.ClassNotFoundException:
>> ca.KeithFuller.server.CorpusServiceImpl
>> at
>> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:
>> 1362)
>> at
>> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:
>> 1208)
>> at
>> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:
>> 1068)
>> at
>> org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:
>> 791)
>> at
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
>> 127)
>> at
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:
>> 174)
>> at
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:
>> 127)
>> at
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:
>> 117)
>> at
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:
>> 108)
>> at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:
>> 151)
>> at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
>> 874)
>> at org.apache.coyote.http11.Http11BaseProtocol
>> $Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:
>> 665)
>> at
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:
>> 528)
>> at
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:
>> 81)
>> at org.apache.tomcat.util.threads.ThreadPool
>> $ControlRunnable.run(ThreadPool.java:689)
>> at java.lang.Thread.run(Thread.java:595)
>> Sep 18, 2008 10:21:04 AM org.apache.catalina.core.StandardWrapperValve
>> invoke
>> SEVERE: Allocate exception for servlet corpus-search
>> java.lang.ClassNotFoundException:
>> ca.KeithFuller.server.CorpusServiceImpl
>> at
>> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:
>> 1362)
>> at
>> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:
>> 1208)
>> at
>> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:
>> 1068)
>> at
>> org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:
>> 791)
>> at
>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
>> 127)
>> at
>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:
>> 174)
>> at
>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:
>> 127)
>> at
>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:
>> 117)
>> at
>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:
>> 108)
>> at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:
>> 151)
>> at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
>> 874)
>> at org.apache.coyote.http11.Http11BaseProtocol
>> $Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:
>> 665)
>> at
>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:
>> 528)
>> at
>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:
>> 81)
>> at org.apache.tomcat.util.threads.ThreadPool
>> $ControlRunnable.run(ThreadPool.java:689)
>> at java.lang.Thread.run(Thread.java:595)
>>
>> The web server has the directory structure:
>> apache-tomcat-5.5.25/webapps
>> CorpusSearch
>> ... a pile of html, rpc, js, html, css, and...
>> web.xml
>> WEB-INF
>> classes
>> CorpusSearch.class
>> CorpusSearchReturns.class
>> CorpusSearchServiceAsync.class
>> CorpusSearchData.class
>> CorpusSearchService.class
>> CorpusServiceImpl.class
>> web.xml
>> lib
>> gwt-servlet.jar
>> web.xml
>>
>> The dev machine directory structure is:
>> Eclipse Workspace
>> .metadata
>> SearchProject
>> ...
>> src
>> ca
>> KeithFuller
>> CorpusSearch.gwt.xml
>> client
>> CorpusSearch.java
>> CorpusSearchReturns.java
>> CorpusSearchServiceAsync.java
>> CorpusSearchData.java
>> CorpusSearchService.java
>> server
>> CorpusServiceImpl.java
>> public
>> CorpusSearch.html
>> SearchProject.css
>>
>> The Eclipse Package Explorer shows:
>> SearchProject
>> src
>> ca.KeithFuller
>> client (a package)
>> CorpusSearch.java
>> CorpusSearchReturns.java
>> CorpusSearchServiceAsync.java
>> CorpusSearchData.java
>> CorpusSearchService.java
>> server (a package)
>> CorpusServiceImpl.java
>> public (a folder)
>> CorpusSearch.html
>> CorpusSearch.gwt.xml
>>
>> CorpusSearch.gwt.xml contains:
>> <module>
>>
>> <!-- Inherit the core Web Toolkit stuff. -->
>> <inherits name='com.google.gwt.user.User'/>
>>
>> <!-- Specify the app entry point class. -->
>> <entry-point class='ca.KeithFuller.client.CorpusSearch'/>
>>
>> <servlet path="/corpus-search"
>> class="ca.KeithFuller.server.CorpusServiceImpl"/>
>>
>> <stylesheet src="SearchProject.css"/>
>>
>> </module>
>>
>> web.xml (all of them!) contain:
>> <?xml version="1.0" encoding="UTF-8"?>
>> <web-app>
>>
>> <servlet>
>> <servlet-name>corpus-search</servlet-name>
>>
>> <servlet-class>ca.KeithFuller.server.CorpusServiceImpl</servlet-
>> class>
>> </servlet>
>>
>> <servlet-mapping>
>> <servlet-name>corpus-search</servlet-name>
>> <!--
>> <url-pattern>/CorpusSearch</url-pattern> -->
>> <url-pattern>/corpus-search</url-pattern>
>> </servlet-mapping>
>>
>> </web-app>
>>
>> If you got this far and have any ideas, then please let me know.
>>
>> Thanks
> >
>
--
____________________________________
G. Keith Fuller, Ph.D., P.Eng.
[EMAIL PROTECTED]
[EMAIL PROTECTED]
http://www.KeithFuller.ca/
(Due to mail filters outside of my control, mail sent from yahoo or
hotmail accounts may not be delivered to me.)
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