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From "Vadim Gritsenko" <vadim.gritse...@verizon.net>
Subject RE: <jsp:forward> in jsp causeing error
Date Thu, 14 Feb 2002 23:47:23 GMT
If you have servlet.jar in the WEB-INF/lib, this is (IIRC) *bad*, and
you should delete it right away. Servlet.jar provided in the Cocoon with
the only purpose to compile sources.

Vadim

> -----Original Message-----
> From: Peter Schwenke [mailto:peter@bluetoad.com.au]
> Sent: Thursday, February 14, 2002 6:15 PM
> To: cocoon-users@xml.apache.org
> Subject: <jsp:forward> in jsp causeing error
> 
> 
> I had a similar error calling RequestDispatcher.forward from a servlet
> and traced it back. I ended up replacing the servlet.jar
> which came with cocoon by the servlet.jar from Tomcat. Works fine.
> 
> That was with Tomcat 3.2.1 and Cocoon2.0rc2.
> 
>                                                              ...Peter
> Gasper writes:
>  > Hello
>  >
>  > I'm building a site using cocoon 2.0 and jsp's for dynamic content
In my
> jsp
>  > I'm trying to forward to a page using a simple <jsp:forward> tag
but this
>  > causes an error below. I'm using tomcat 3.2.3
>  >
>  > Does anybody know a solution?
>  > Is this a bug?
>  >
>  > Thanks
>  >
>  > Gasper
>  >
>  > The error:
>  >
>  > org.apache.cocoon.ProcessingException: ServletException in
>  > JspGenerator.generate(): java.lang.ClassCastException:
>  > org.apache.cocoon.components.jsp.JSPEngineImpl$MyServletRequest
>  >  at
>
org.apache.cocoon.generation.JspGenerator.generate(JspGenerator.java:87)
>  >  at
>  >
>
org.apache.cocoon.components.pipeline.CachingEventPipeline.process(Cachi
ngEv
>  > entPipeline.java:210)
>  >  at
>  >
>
org.apache.cocoon.components.pipeline.CachingStreamPipeline.process(Cach
ingS
>  > treamPipeline.java:359)
>  >  at
>  >
>
org.apache.cocoon.www.sitemap_xmap.wildcardMatchN40058D(sitemap_xmap.jav
a:90
>  > 80)
>  >  at
org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:3026)
>  >  at
org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:2500)
>  >  at org.apache.cocoon.sitemap.Handler.process(Handler.java:163)
>  >  at org.apache.cocoon.sitemap.Manager.invoke(Manager.java:114)
>  >  at org.apache.cocoon.Cocoon.process(Cocoon.java:514)
>  >  at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:664)
>  >  at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>  >  at
>
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)
>  >  at org.apache.tomcat.core.Handler.service(Handler.java:287)
>  >  at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
>  >  at
>  >
>
org.apache.tomcat.core.ContextManager.internalService(ContextManager.jav
a:81
>  > 2)
>  >  at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:758)
>  >  at
>  >
>
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(H
ttpC
>  > onnectionHandler.java:213)
>  >  at
>  >
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416
)
>  >  at
>  >
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:50
1)
>  >  at java.lang.Thread.run(Unknown Source)
>  > java.lang.ClassCastException:
>  > org.apache.cocoon.components.jsp.JSPEngineImpl$MyServletRequest
>  >  at
>  >
>
org.apache.tomcat.facade.RequestDispatcherImpl.doForward(RequestDispatch
erIm
>  > pl.java:172)
>  >  at
>  >
>
org.apache.tomcat.facade.RequestDispatcherImpl.forward(RequestDispatcher
Impl
>  > .java:162)
>  >  at
>  >
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:4
21)
>  >  at
>  >
>
admin._0002fadmin_0002fsumniki_0002ejspsumniki_jsp_3._jspService(_0002fa
dmin
>  > _0002fsumniki_0002ejspsumniki_jsp_3.java:72)
>  >  at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
>  >  at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>  >  at
>  >
>
org.apache.jasper.servlet.JspServlet$JspCountedServlet.service(JspServle
t.ja
>  > va:130)
>  >  at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>  >  at
>  >
>
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServle
t.ja
>  > va:282)
>  >  at
>
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:429)
>  >  at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:500)
>  >  at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>  >  at
>  >
>
org.apache.cocoon.components.jsp.JSPEngineImpl.executeJSP(JSPEngineImpl.
java
>  > :107)
>  >  at
>
org.apache.cocoon.generation.JspGenerator.generate(JspGenerator.java:74)
>  >  at
>  >
>
org.apache.cocoon.components.pipeline.CachingEventPipeline.process(Cachi
ngEv
>  > entPipeline.java:210)
>  >  at
>  >
>
org.apache.cocoon.components.pipeline.CachingStreamPipeline.process(Cach
ingS
>  > treamPipeline.java:359)
>  >  at
>  >
>
org.apache.cocoon.www.sitemap_xmap.wildcardMatchN40058D(sitemap_xmap.jav
a:90
>  > 80)
>  >  at
org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:3026)
>  >  at
org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:2500)
>  >  at org.apache.cocoon.sitemap.Handler.process(Handler.java:163)
>  >  at org.apache.cocoon.sitemap.Manager.invoke(Manager.java:114)
>  >  at org.apache.cocoon.Cocoon.process(Cocoon.java:514)
>  >  at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:664)
>  >  at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>  >  at
>
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)
>  >  at org.apache.tomcat.core.Handler.service(Handler.java:287)
>  >  at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
>  >  at
>  >
>
org.apache.tomcat.core.ContextManager.internalService(ContextManager.jav
a:81
>  > 2)
>  >  at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:758)
>  >  at
>  >
>
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(H
ttpC
>  > onnectionHandler.java:213)
>  >  at
>  >
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416
)
>  >  at
>  >
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:50
1)
>  >  at java.lang.Thread.run(Unknown Source)
>  >
>  >
>  >  Original exception : java.lang.ClassCastException:
>  > org.apache.cocoon.components.jsp.JSPEngineImpl$MyServletRequest
>  >  at
>  >
>
org.apache.tomcat.facade.RequestDispatcherImpl.doForward(RequestDispatch
erIm
>  > pl.java:172)
>  >  at
>  >
>
org.apache.tomcat.facade.RequestDispatcherImpl.forward(RequestDispatcher
Impl
>  > .java:162)
>  >  at
>  >
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:4
21)
>  >  at
>  >
>
admin._0002fadmin_0002fsumniki_0002ejspsumniki_jsp_3._jspService(_0002fa
dmin
>  > _0002fsumniki_0002ejspsumniki_jsp_3.java:72)
>  >  at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
>  >  at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>  >  at
>  >
>
org.apache.jasper.servlet.JspServlet$JspCountedServlet.service(JspServle
t.ja
>  > va:130)
>  >  at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>  >  at
>  >
>
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServle
t.ja
>  > va:282)
>  >  at
>
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:429)
>  >  at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:500)
>  >  at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>  >  at
>  >
>
org.apache.cocoon.components.jsp.JSPEngineImpl.executeJSP(JSPEngineImpl.
java
>  > :107)
>  >  at
>
org.apache.cocoon.generation.JspGenerator.generate(JspGenerator.java:74)
>  >  at
>  >
>
org.apache.cocoon.components.pipeline.CachingEventPipeline.process(Cachi
ngEv
>  > entPipeline.java:210)
>  >  at
>  >
>
org.apache.cocoon.components.pipeline.CachingStreamPipeline.process(Cach
ingS
>  > treamPipeline.java:359)
>  >  at
>  >
>
org.apache.cocoon.www.sitemap_xmap.wildcardMatchN40058D(sitemap_xmap.jav
a:90
>  > 80)
>  >  at
org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:3026)
>  >  at
org.apache.cocoon.www.sitemap_xmap.process(sitemap_xmap.java:2500)
>  >  at org.apache.cocoon.sitemap.Handler.process(Handler.java:163)
>  >  at org.apache.cocoon.sitemap.Manager.invoke(Manager.java:114)
>  >  at org.apache.cocoon.Cocoon.process(Cocoon.java:514)
>  >  at
org.apache.cocoon.servlet.CocoonServlet.service(CocoonServlet.java:664)
>  >  at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>  >  at
>
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:405)
>  >  at org.apache.tomcat.core.Handler.service(Handler.java:287)
>  >  at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
>  >  at
>  >
>
org.apache.tomcat.core.ContextManager.internalService(ContextManager.jav
a:81
>  > 2)
>  >  at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:758)
>  >  at
>  >
>
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(H
ttpC
>  > onnectionHandler.java:213)
>  >  at
>  >
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416
)
>  >  at
>  >
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:50
1)
>  >  at java.lang.Thread.run(Unknown Source)
>  >
>  >
>  >
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>  > FAQ before posting. <http://xml.apache.org/cocoon/faqs.html>
>  >
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> 
> ---------------------------------------------------------------------
> Please check that your question has not already been answered in the
> FAQ before posting. <http://xml.apache.org/cocoon/faqs.html>
> 
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