Hello Davor,
Thanks for your reply. I am giving stack trace below and problematic url.

Following is the stack trace I get when I try to upload a file through the
servlet
which produces the .htm file and shows in url.

This occures when use <url-pattern>/*<url-pattern>

An unexpected application exception has occurred.

    * java.lang.IllegalArgumentException
      Unable to resolve page 'document/DocumentUpload' to a known page name.
Available page names: core/ExceptionReport, core/PropertyDisplayBlocks,
core/PropertyEditBlocks, resource/AssignmentSummary, resource/Business,
resource/Dashboard, resource/GenericSelectModel,
resource/ManageResourcesList, resource/Personal, resource/Projects,
resource/Remaining, resource/Select, resource/SelectResource_V8_5,
resource/TaskAssignmentDetail, resource/ViewDetails,
resource/ViewDetails_V8_5, resource/ViewSummary.

      Stack trace
              o
org.apache.tapestry.internal.services.ComponentClassResolverImpl$8.invoke(ComponentClassResolverImpl.java:393)
              o
org.apache.tapestry.internal.services.ComponentClassResolverImpl$8.invoke(ComponentClassResolverImpl.java:388)
              o
org.apache.tapestry.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:77)
              o
org.apache.tapestry.internal.services.ComponentClassResolverImpl.canonicalizePageName(ComponentClassResolverImpl.java:386)
              o
org.apache.tapestry.internal.services.PagePoolImpl.checkout(PagePoolImpl.java:59)
              o
org.apache.tapestry.internal.services.RequestPageCacheImpl.get(RequestPageCacheImpl.java:44)
              o
org.apache.tapestry.internal.services.RequestEncodingInitializerImpl.initializeRequestEncoding(RequestEncodingInitializerImpl.java:42)
              o
org.apache.tapestry.internal.services.InternalModule$11.handle(InternalModule.java:539)
              o
org.apache.tapestry.internal.services.ComponentActionDispatcher.dispatch(ComponentActionDispatcher.java:116)
              o
org.apache.tapestry.services.TapestryModule$12.service(TapestryModule.java:1066)
              o
org.apache.tapestry.internal.services.LocalizationFilter.service(LocalizationFilter.java:43)
              o
org.apache.tapestry.services.TapestryModule$2.service(TapestryModule.java:657)
              o
org.apache.tapestry.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:63)
              o
org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:97)
              o
org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:88)
              o
org.apache.tapestry.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:77)
              o
org.apache.tapestry.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:110)
              o
org.apache.tapestry.services.TapestryModule$11.service(TapestryModule.java:1044)
              o
org.apache.tapestry.TapestryFilter.doFilter(TapestryFilter.java:135)
              o
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
              o
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
              o
net.project.security.SessionAccessFilter.doFilter(SessionAccessFilter.java:79)
              o
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
              o
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
              o
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
              o
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
              o
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
              o
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
              o
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
              o
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
              o
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
              o
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
              o
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
              o
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
              o
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
              o java.lang.Thread.run(Unknown Source)

But when I use <url-pattern>/package/*</url-pattern> the file uploading dont
show any exception
and Tapestry pages also executes well but with -[Error]- in front of every
tapestry component
Actually -[Error]- is alt text for error image of tapestry which gets
displayed on validation error.
But I don't know why it gets activated in this situation.

If anyone can tell why this is happening it will be very helpful to me. :>

Thanks in advance.. :)

Davor Hrg wrote:
> 
> could you post stack trace,
> and problematic url ?
> 
> Davor Hrg
> 
> 

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