[opencms-dev] Help ! Resource loader error ...
M Butcher
mbutcher at grcomputing.net
Tue Jul 8 19:03:01 CEST 2003
If you create an instance of the class and then use it, what happens?
e.g.
Constants c = new Constants();
out.println(c.webAppPath);
I don't know much about the classloader that the JSPs use, but this
would be an interesting test to try and isolate the problem.
On Tue, 2003-07-08 at 10:10, Apostoly Guillaume wrote:
> here's the detailed error i've got in the log :
>
> 2003-07-08 18:09:47 ApplicationDispatcher[/opencms] Servlet.service() for
> servlet jsp threw exception
> org.apache.jasper.JasperException: com/machin/intranet/Constants
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2
> 54)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
> java:684)
> at
> org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatch
> er.java:575)
> at
> org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher
> .java:498)
> at
> com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispat
> cher.java:180)
> at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:955)
> at
> com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispat
> cher.java:268)
> at com.opencms.flex.CmsJspLoader.load(CmsJspLoader.java:567)
> at com.opencms.flex.CmsJspLoader.initlaunch(CmsJspLoader.java:235)
> at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
> at
> com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:310)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> FilterChain.java:247)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> ain.java:193)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:256)
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
> va:191)
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
> org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
> )
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
> java:171)
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:641)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172
> )
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:641)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
> :174)
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
> org.apache.catalina.connector.warp.WarpRequestHandler.handle(Unknown Source)
> at org.apache.catalina.connector.warp.WarpConnection.run(Unknown
> Source)
> at java.lang.Thread.run(Thread.java:536)
> ----- Root Cause -----
> javax.servlet.ServletException: com/machin/intranet/Constants
> at
> org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImp
> l.java:536)
> at org.apache.jsp.index_jsp_jsp._jspService(index_jsp_jsp.java:517)
> at
> org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:2
> 10)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
> java:684)
> at
> org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatch
> er.java:575)
> at
> org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher
> .java:498)
> at
> com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispat
> cher.java:180)
> at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:955)
> at
> com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispat
> cher.java:268)
> at com.opencms.flex.CmsJspLoader.load(CmsJspLoader.java:567)
> at com.opencms.flex.CmsJspLoader.initlaunch(CmsJspLoader.java:235)
> at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
> at
> com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:310)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> FilterChain.java:247)
> at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> ain.java:193)
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:256)
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
> va:191)
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
> org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
> )
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
> java:171)
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:641)
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172
> )
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:641)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
> :174)
> at
> org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invok
> eNext(StandardPipeline.java:643)
> at
> org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
> at
> org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> at
> org.apache.catalina.connector.warp.WarpRequestHandler.handle(Unknown Source)
> at org.apache.catalina.connector.warp.WarpConnection.run(Unknown
> Source)
> at java.lang.Thread.run(Thread.java:536)
>
>
>
> > -----Message d'origine-----
> > De: Apostoly Guillaume
> > Date: mardi 8 juillet 2003 17:45
> > À: opencms-dev at opencms.org
> > Objet: RE: [opencms-dev] Help ! Resource loader error ...
> >
> >
> > I see what you mean, but it doesn't solve the problem : i've
> > checked the
> > tomcat logs also, and there's nothing more.
> > More than this, in my jsp, i've got just the instantiation of
> > my class (
> > constructor with no parameters), and my class is an "empty"
> > class. In fact I
> > never went further than that...
> > Any idea ?
> >
> > > -----Message d'origine-----
> > > De: M Butcher [mailto:mbutcher at grcomputing.net]
> > > Date: mardi 8 juillet 2003 18:03
> > > À: opencms-dev at opencms.org
> > > Objet: Re: [opencms-dev] Help ! Resource loader error ...
> > >
> > >
> > > I spent a few hours dealing with the same exception on one of
> > > my pages,
> > > thinking that it was the classloader that was causing the problem.
> > > Finally, I realized that I had a really dumb error in my
> > code that was
> > > generating a NullPointerException... which got reported as
> > a Resource
> > > loader error. Since then, I've seen a few other exceptions
> > > get reported
> > > as this error, so it is not necessarily a classloader problem
> > > (though it
> > > may be).
> > >
> > > Sometimes the $TOMCAT/logs/ files had more to say than the
> > exceptions
> > > that got reported to the screen, so it might help to check there.
> > >
> > > Matt
> > >
> > > On Tue, 2003-07-08 at 03:00, Apostoly Guillaume wrote:
> > > > Hi all,
> > > >
> > > > I've got a problem with the classloader (maybe):
> > > > I put <%@ page session="false"
> > > import="com.machin.intranet.* ......> in a
> > > > jsp page.
> > > > I've got a class called "Constants" into
> > > > modules/com.machin.intranet/classes/com/machin/intranet
> > > which correspond to
> > > > WEB-INF/classes/com/machin/intranet on the real system.
> > > >
> > > > If I try to put this out.println("constant :
> > > > "+com.europcar.intranet.Constants.webAppPath); into my jsp,
> > > i've got the
> > > > following error...
> > > > Has anybody any idea ?
> > > >
> > > > Thanks by advance.
> > > >
> > > > Guillaume
> > > >
> > > > javax.servlet.ServletException: Resource loader error in file
> > > > '/intranetmachin/Domains/Marketing/index.jsp'
> > > >
> > > > Root cause:
> > > > org.apache.jasper.JasperException: com/machin/intranet/Constants
> > > > at
> > > >
> > > org.apache.jasper.servlet.JspServletWrapper.service(JspServlet
> > > Wrapper.java:2
> > > > 54)
> > > > at
> > > org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet
> > > .java:295)
> > > > at
> > > org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> > > > at
> > > >
> > > org.apache.catalina.core.ApplicationDispatcher.invoke(Applicat
> > > ionDispatcher.
> > > > java:684)
> > > > at
> > > >
> > > org.apache.catalina.core.ApplicationDispatcher.doInclude(Appli
> > > cationDispatch
> > > > er.java:575)
> > > > at
> > > >
> > > org.apache.catalina.core.ApplicationDispatcher.include(Applica
> > > tionDispatcher
> > > > .java:498)
> > > > at
> > > >
> > > com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFle
> > > xRequestDispat
> > > > cher.java:180)
> > > > at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:955)
> > > > at
> > > >
> > > com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFle
> > > xRequestDispat
> > > > cher.java:268)
> > > > at com.opencms.flex.CmsJspLoader.load(CmsJspLoader.java:567)
> > > > at
> > com.opencms.flex.CmsJspLoader.initlaunch(CmsJspLoader.java:235)
> > > > at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
> > > > at
> > >
> > com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:310)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> > > > at
> > > >
> > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilt
> > > er(Application
> > > > FilterChain.java:247)
> > > > at
> > > >
> > > org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli
> > > cationFilterCh
> > > > ain.java:193)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardWrapperValve.invoke(StandardW
> > > rapperValve.ja
> > > > va:256)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:643)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> > > ine.java:480)
> > > > at
> > >
> > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardContextValve.invoke(StandardC
> > > ontextValve.ja
> > > > va:191)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:643)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> > > ine.java:480)
> > > > at
> > >
> > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardContext.invoke(StandardContex
> > > t.java:2415)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardHostValve.invoke(StandardHost
> > > Valve.java:180
> > > > )
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:643)
> > > > at
> > > >
> > > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDi
> > > spatcherValve.
> > > > java:171)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:641)
> > > > at
> > > >
> > > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReport
> > > Valve.java:172
> > > > )
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:641)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> > > ine.java:480)
> > > > at
> > >
> > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardEngineValve.invoke(StandardEn
> > > gineValve.java
> > > > :174)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:643)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> > > ine.java:480)
> > > > at
> > >
> > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > at
> > > org.apache.catalina.connector.warp.WarpRequestHandler.handle(Unknown
> > > > Source)
> > > > at
> > >
> > org.apache.catalina.connector.warp.WarpConnection.run(Unknown Source)
> > > > at java.lang.Thread.run(Thread.java:536)
> > > >
> > > > --------------- End of root cause.
> > > >
> > > > at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:962)
> > > > at
> > > >
> > > com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFle
> > > xRequestDispat
> > > > cher.java:268)
> > > > at com.opencms.flex.CmsJspLoader.load(CmsJspLoader.java:567)
> > > > at
> > com.opencms.flex.CmsJspLoader.initlaunch(CmsJspLoader.java:235)
> > > > at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
> > > > at
> > >
> > com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:310)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
> > > > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> > > > at
> > > >
> > > org.apache.catalina.core.ApplicationFilterChain.internalDoFilt
> > > er(Application
> > > > FilterChain.java:247)
> > > > at
> > > >
> > > org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli
> > > cationFilterCh
> > > > ain.java:193)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardWrapperValve.invoke(StandardW
> > > rapperValve.ja
> > > > va:256)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:643)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> > > ine.java:480)
> > > > at
> > >
> > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardContextValve.invoke(StandardC
> > > ontextValve.ja
> > > > va:191)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:643)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> > > ine.java:480)
> > > > at
> > >
> > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardContext.invoke(StandardContex
> > > t.java:2415)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardHostValve.invoke(StandardHost
> > > Valve.java:180
> > > > )
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:643)
> > > > at
> > > >
> > > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDi
> > > spatcherValve.
> > > > java:171)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:641)
> > > > at
> > > >
> > > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReport
> > > Valve.java:172
> > > > )
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:641)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> > > ine.java:480)
> > > > at
> > >
> > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardEngineValve.invoke(StandardEn
> > > gineValve.java
> > > > :174)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline$StandardPipelineValv
> > > eContext.invok
> > > > eNext(StandardPipeline.java:643)
> > > > at
> > > >
> > > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel
> > > ine.java:480)
> > > > at
> > >
> > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
> > > > at
> > > org.apache.catalina.connector.warp.WarpRequestHandler.handle(Unknown
> > > > Source)
> > > > at
> > >
> > org.apache.catalina.connector.warp.WarpConnection.run(Unknown Source)
> > > > at java.lang.Thread.run(Thread.java:536)
> > > >
> > > >
> > > >
> > > >
> > > > _______________________________________
> > > > Guillaume APOSTOLY
> > > > Business-Analyst EIS-BSD
> > > > Tél: +33 (0)1.30.44.95.22
> > > > Fax: +33 (0)1.30.44.98.08
> > > > ApostolyG at mail.europcar.com <mailto:ApostolyG at mail.europcar.com>
> > > > _______________________________________
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > This mail is send to you from the opencms-dev mailing list
> > > > To change your list options, or to unsubscribe from the
> > > list, please visit
> > > > http://mail.opencms.org/mailman/listinfo/opencms-dev
> > > --
> > > M Butcher <mbutcher at grcomputing.net>
> > > _______________________________________________
> > > This mail is send to you from the opencms-dev mailing list
> > > To change your list options, or to unsubscribe from the list,
> > > please visit
> > > http://mail.opencms.org/mailman/listinfo/opencms-dev
> > >
> > _______________________________________________
> > This mail is send to you from the opencms-dev mailing list
> > To change your list options, or to unsubscribe from the list,
> > please visit
> > http://mail.opencms.org/mailman/listinfo/opencms-dev
> >
> _______________________________________________
> This mail is send to you from the opencms-dev mailing list
> To change your list options, or to unsubscribe from the list, please visit
> http://mail.opencms.org/mailman/listinfo/opencms-dev
--
M Butcher <mbutcher at grcomputing.net>
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