What IDE are you using?
Have you tried to Clean Build. Undeploy and redeploy, also there could be
some library conflicts especially with respect to logging

2008/12/17 Daniel <lia...@gmail.com>

> Changed follow your advice, but the error is the same. It may not the
> code's
> problem but some special configuration of the Web Container.
> Error Page from browser:
>
> *type* Exception report
>
> *message*
>
> *description*The server encountered an internal error () that prevented it
> from fulfilling this request.
>
> *exception*
>
> javax.servlet.ServletException: PWC1391: Servlet.init() for servlet
> HelloWorldApplication threw exception
>
> *root cause*
>
> org.apache.wicket.WicketRuntimeException: Unable to create application
> of class com.example.helloworld.HelloWorldApplication
>
> *root cause*
>
> java.lang.ClassNotFoundException:
> com.example.helloworld.HelloWorldApplication
>
> *note* *The full stack traces of the exception and its root causes are
> available in the GlassFish/v3 logs.*
>
> 2008/12/16 Ajayi Yinka <iamstyaj...@googlemail.com>
>
> > From the error log, it seems glass fish could not load the webApplication
> > class.
> >
> > Make sure your webApplication class is in the correct class path
> > (com.example.helloworld.HelloWorldApplication)
> >
> > And the webApplcation class is in the correct format.
> >
> > or
> >
> > and may change your web.xml file to be in this format:
> >
> > <filter>
> >        <filter-name>HelloWorldApplication</filter-name>
> >
> > <filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-class>
> >         <init-param>
> >            <param-name>applicationClassName</param-name>
> >
> > <param-value>com.example.helloworld.HelloWorldApplication</param-value>
> >        </init-param>
> >         <init-param>
> >            <param-name>debug</param-name>
> >            <param-value>2</param-value>
> >        </init-param>
> >    </filter>
> > 2008/12/16 Daniel <lia...@gmail.com>
> >
> > > Hi,
> > > I'm an newbie in Wicket. When I create my first hello world wicket
> > program,
> > > strange error encounted.
> > >
> > > The hello world program is just to show 'Hello World' through Label.
> > >
> > > The web.xml is as below,
> > >
> > >  <servlet>
> > >   <servlet-name>HelloWorldApplication</servlet-name>
> > >
> > >
> > >
> >
> <servlet-class>org.apache.wicket.protocol.http.WicketServlet</servlet-class>
> > >   <init-param>
> > >   <param-name>applicationClassName</param-name>
> > >
> <param-value>com.example.helloworld.HelloWorldApplication</param-value>
> > >   </init-param>
> > >  </servlet>
> > >  <servlet-mapping>
> > >   <servlet-name>HelloWorldApplication</servlet-name>
> > >   <url-pattern>/helloWorld/*</url-pattern>
> > >  </servlet-mapping>
> > >
> > > In Tomcat env, when I call the URL :
> > > http://localhost:8080/WicketExamples/helloWorld/.
> > > <http://localhost:8080/WicketExamples/helloWorld/>Everything
> > > goes well.
> > > When I use the URL: http://localhost:8080/WicketExamples/, show 404
> > error.
> > >
> > > But the same program runs in GlassFish env. when I call the same URL,
> > error
> > > comes as below
> > >
> > > 2008-12-16 17:32:00 org.apache.catalina.core.ApplicationContext log
> > > 严重: WebModule[/WicketExamples]StandardWrapper.Throwable
> > > org.apache.wicket.WicketRuntimeException: Unable to create application
> of
> > > class com.example.helloworld.HelloWorldApplication
> > > at
> > >
> > >
> >
> org.apache.wicket.protocol.http.ContextParamWebApplicationFactory.createApplication(ContextParamWebApplicationFactory.java:82)
> > > at
> > >
> > >
> >
> org.apache.wicket.protocol.http.ContextParamWebApplicationFactory.createApplication(ContextParamWebApplicationFactory.java:49)
> > > at
> > org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:666)
> > > at
> > >
> >
> org.apache.wicket.protocol.http.WicketServlet.init(WicketServlet.java:209)
> > > at javax.servlet.GenericServlet.init(GenericServlet.java:270)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1198)
> > > at
> > >
> >
> org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:863)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardWrapperValve.preInvoke(StandardWrapperValve.java:369)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:139)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:186)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:719)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:657)
> > > at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:96)
> > > at
> > >
> > >
> >
> com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:187)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:719)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:657)
> > > at
> > >
> >
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:651)
> > > at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1030)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:142)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:719)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:657)
> > > at
> > >
> >
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:651)
> > > at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1030)
> > > at
> > >
> > >
> >
> org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
> > > at
> > >
> >
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:242)
> > > at
> > >
> > >
> >
> com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:180)
> > > at
> > >
> > >
> >
> com.sun.grizzly.http.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:633)
> > > at
> > >
> > >
> >
> com.sun.grizzly.http.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:570)
> > > at
> > >
> > >
> >
> com.sun.grizzly.http.DefaultProcessorTask.process(DefaultProcessorTask.java:827)
> > > at
> > >
> > >
> >
> com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:152)
> > > at
> > >
> > >
> >
> com.sun.enterprise.v3.services.impl.GlassfishProtocolChain.executeProtocolFilter(GlassfishProtocolChain.java:71)
> > > at
> > >
> >
> com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:103)
> > > at
> > >
> >
> com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:89)
> > > at
> > >
> com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
> > > at
> > >
> > >
> >
> com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:67)
> > > at
> > >
> > >
> >
> com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:56)
> > > at
> > >
> > >
> >
> com.sun.grizzly.util.WorkerThreadImpl.processTask(WorkerThreadImpl.java:325)
> > > at com.sun.grizzly.util.WorkerThreadImpl.run(WorkerThreadImpl.java:184)
> > > Caused by: java.lang.ClassNotFoundException:
> > > com.example.helloworld.HelloWorldApplication
> > > at
> > >
> > >
> >
> org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1509)
> > > at
> > >
> > >
> >
> org.apache.wicket.protocol.http.ContextParamWebApplicationFactory.createApplication(ContextParamWebApplicationFactory.java:68)
> > > ... 38 more
> > >
> > > 2008-12-16 17:32:00 org.apache.catalina.core.StandardWrapperValve log
> > > 严重: StandardWrapperValve[HelloWorldApplication]: PWC1382: Allocate
> > > exception
> > > for servlet HelloWorldApplication
> > > org.apache.wicket.WicketRuntimeException: Unable to create application
> of
> > > class com.example.helloworld.HelloWorldApplication
> > > at
> > >
> > >
> >
> org.apache.wicket.protocol.http.ContextParamWebApplicationFactory.createApplication(ContextParamWebApplicationFactory.java:82)
> > > at
> > >
> > >
> >
> org.apache.wicket.protocol.http.ContextParamWebApplicationFactory.createApplication(ContextParamWebApplicationFactory.java:49)
> > > at
> > org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:666)
> > > at
> > >
> >
> org.apache.wicket.protocol.http.WicketServlet.init(WicketServlet.java:209)
> > > at javax.servlet.GenericServlet.init(GenericServlet.java:270)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1198)
> > > at
> > >
> >
> org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:863)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardWrapperValve.preInvoke(StandardWrapperValve.java:369)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:139)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:186)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:719)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:657)
> > > at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:96)
> > > at
> > >
> > >
> >
> com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:98)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:187)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:719)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:657)
> > > at
> > >
> >
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:651)
> > > at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1030)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:142)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:719)
> > > at
> > >
> > >
> >
> org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:657)
> > > at
> > >
> >
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:651)
> > > at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:1030)
> > > at
> > >
> > >
> >
> org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:325)
> > > at
> > >
> >
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:242)
> > > at
> > >
> > >
> >
> com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:180)
> > > at
> > >
> > >
> >
> com.sun.grizzly.http.DefaultProcessorTask.invokeAdapter(DefaultProcessorTask.java:633)
> > > at
> > >
> > >
> >
> com.sun.grizzly.http.DefaultProcessorTask.doProcess(DefaultProcessorTask.java:570)
> > > at
> > >
> > >
> >
> com.sun.grizzly.http.DefaultProcessorTask.process(DefaultProcessorTask.java:827)
> > > at
> > >
> > >
> >
> com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:152)
> > > at
> > >
> > >
> >
> com.sun.enterprise.v3.services.impl.GlassfishProtocolChain.executeProtocolFilter(GlassfishProtocolChain.java:71)
> > > at
> > >
> >
> com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:103)
> > > at
> > >
> >
> com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:89)
> > > at
> > >
> com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:76)
> > > at
> > >
> > >
> >
> com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:67)
> > > at
> > >
> > >
> >
> com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:56)
> > > at
> > >
> > >
> >
> com.sun.grizzly.util.WorkerThreadImpl.processTask(WorkerThreadImpl.java:325)
> > > at com.sun.grizzly.util.WorkerThreadImpl.run(WorkerThreadImpl.java:184)
> > > Caused by: java.lang.ClassNotFoundException:
> > > com.example.helloworld.HelloWorldApplication
> > > at
> > >
> > >
> >
> org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1509)
> > > at
> > >
> > >
> >
> org.apache.wicket.protocol.http.ContextParamWebApplicationFactory.createApplication(ContextParamWebApplicationFactory.java:68)
> > > ... 38 more
> > >
> > > When I use the URL http://localhost:8080/WicketExamples/, the result
> is
> > > correct.
> > >
> > > My env is
> > > JDK 1.5.0_16
> > > Wicket 1.4rc1
> > > Tomcat 6.0
> > > GlassFish v3
> > >
> > > Can anybody help me?
> > >
> > > Thank you in advance.
> > > --
> > > Best regards,
> > > Daniel
> > >
> >
>
>
>
> --
> Best regards,
> Daniel
>



-- 
Aladejebi Ayodeji A.,
DabarObjects Solutions

Reply via email to