Re: Problem with error404

Tue, 06 Oct 2009 14:41:40 -0700 

Hi,
Thanks for reply. It seems to me like work around. You suppose me to change place where I detect that page can't be found to different one. When I place this logic of detecting invalid page in filer then I'll do this work two times. Once time in filter and second time I'll examine the requested path in Index.java. 

Maybe I should reformulate questions:

Is it bug or not. Same code leads in different results at jetty and  
tomcat?

How you handle invalid page requests?

thanks for any help

Jan


On Oct 6, 2009, at 12:45 PM, cordenier christophe wrote:


Hello

Have you tried with a ComponenRequestFilter instead ?

Christophe

2009/10/6 Jan Jirout <jjir...@indracompany.com>


Hi All,


I'm playing some time with t5. I have meet simple problem. I hope  
that it's

not my fault.

So.


I would like to handle "Error 404" in my application so I have in  
web.xml:


      <filter-mapping>
              <filter-name>app</filter-name>
              <url-pattern>/*</url-pattern>
              <dispatcher>REQUEST</dispatcher>
              <dispatcher>ERROR</dispatcher>
      </filter-mapping>

      <error-page>
              <error-code>404</error-code>
              <location>/error404</location>
      </error-page>


My Index.java is:


  void onActivate(final String pageUrl) throws IOException {
      if (isKnownPage(pageUrl)) {
          //show page
      } else {
           response.sendError(404, null);
      }
  }


If I access page "/hello"  then pageUrl property is "hello". If  
there is
page /hello then this page is normally processed. If I sendError  
then page
error404 should be shown. This Error page exists. So when I access / 
blah
then /error404 page is shown. It works fine with jetty. But it  
doesn't work

with tomcat 6.

I have tried to debug it, and it seems to me, that information about
content type is lost. In class BufferedGZipOutputStream is already

information about content type lost but in class  
PageResponseRendererImpl is

still present.

thanks for help

Jan



Here is my stack trace:
SEVERE: Servlet.service() for servlet default threw exception
java.lang.NullPointerException
      at

org.apache.tapestry5 
.internal.services.ResponseCompressionAnalyzerImpl.isCompressable 
(ResponseCompressionAnalyzerImpl.java:65)

      at

$ResponseCompressionAnalyzer_1241954ff2c.isCompressable 
($ResponseCompressionAnalyzer_1241954ff2c.java)

      at

org.apache.tapestry5 
.internal.gzip.BufferedGZipOutputStream.openResponseOutputStream 
(BufferedGZipOutputStream.java:77)

      at

org.apache.tapestry5 
.internal.gzip.BufferedGZipOutputStream.checkForCutover 
(BufferedGZipOutputStream.java:70)

      at

org.apache.tapestry5.internal.gzip.BufferedGZipOutputStream.write 
(BufferedGZipOutputStream.java:116)

      at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
      at sun.nio.cs.StreamEncoder.implWrite(StreamEncoder.java:263)
      at sun.nio.cs.StreamEncoder.write(StreamEncoder.java:106)

      at java.io.OutputStreamWriter.write(OutputStreamWriter.java: 
190)

      at java.io.BufferedWriter.flushBuffer(BufferedWriter.java:111)
      at java.io.BufferedWriter.write(BufferedWriter.java:212)
      at java.io.PrintWriter.write(PrintWriter.java:412)
      at java.io.PrintWriter.write(PrintWriter.java:429)
      at java.io.PrintWriter.print(PrintWriter.java:559)
      at org.apache.tapestry5.dom.Text.toMarkup(Text.java:59)
      at
org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:840)
      at org.apache.tapestry5.dom.Element.toMarkup(Element.java:356)
      at
org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:840)
      at org.apache.tapestry5.dom.Element.toMarkup(Element.java:356)
      at
org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:840)
      at org.apache.tapestry5.dom.Element.toMarkup(Element.java:356)
      at
org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:840)
      at org.apache.tapestry5.dom.Element.toMarkup(Element.java:356)
      at
org.apache.tapestry5.dom.Element.writeChildMarkup(Element.java:840)
      at org.apache.tapestry5.dom.Element.toMarkup(Element.java:356)

      at org.apache.tapestry5.dom.Document.toMarkup(Document.java: 
163)

      at org.apache.tapestry5.dom.Node.toMarkup(Node.java:80)
      at

org.apache.tapestry5.internal.services.MarkupWriterImpl.toMarkup 
(MarkupWriterImpl.java:57)

      at

org.apache.tapestry5 
.internal.services.PageResponseRendererImpl.renderPageResponse 
(PageResponseRendererImpl.java:67)

      at

$PageResponseRenderer_1241954ff57.renderPageResponse 
($PageResponseRenderer_1241954ff57.java)

      at

org.apache.tapestry5 
.internal.services.DefaultRequestExceptionHandler.handleRequestException 
(DefaultRequestExceptionHandler.java:77)

      at

$RequestExceptionHandler_1241954ff38.handleRequestException 
($RequestExceptionHandler_1241954ff38.java)

      at

org.apache.tapestry5.internal.services.RequestErrorFilter.service 
(RequestErrorFilter.java:42)

      at
$RequestHandler_1241954ff3a.service($RequestHandler_1241954ff3a.java)
      at

org.apache.tapestry5.services.TapestryModule$4.service 
(TapestryModule.java:778)

      at
$RequestHandler_1241954ff3a.service($RequestHandler_1241954ff3a.java)
      at

org.apache.tapestry5.services.TapestryModule$3.service 
(TapestryModule.java:767)

      at
$RequestHandler_1241954ff3a.service($RequestHandler_1241954ff3a.java)
      at

org.apache.tapestry5.internal.services.StaticFilesFilter.service 
(StaticFilesFilter.java:85)

      at
$RequestHandler_1241954ff3a.service($RequestHandler_1241954ff3a.java)
      at

org.apache.tapestry5.internal.services.CheckForUpdatesFilter 
$2.invoke(CheckForUpdatesFilter.java:90)

      at

org.apache.tapestry5.internal.services.CheckForUpdatesFilter 
$2.invoke(CheckForUpdatesFilter.java:81)

      at

org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead 
(ConcurrentBarrier.java:85)

      at

org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service 
(CheckForUpdatesFilter.java:103)

      at
$RequestHandler_1241954ff3a.service($RequestHandler_1241954ff3a.java)
      at
$RequestHandler_1241954ff2f.service($RequestHandler_1241954ff2f.java)
      at

org.apache.tapestry5.services.TapestryModule 
$HttpServletRequestHandlerTerminator.service(TapestryModule.java:197)

      at

org.apache.tapestry5 
.upload.internal.services.MultipartServletRequestFilter.service 
(MultipartServletRequestFilter.java:44)

      at

$HttpServletRequestHandler_1241954ff31.service 
($HttpServletRequestHandler_1241954ff31.java)

      at

org.apache.tapestry5.internal.gzip.GZipFilter.service 
(GZipFilter.java:53)

      at

$HttpServletRequestHandler_1241954ff31.service 
($HttpServletRequestHandler_1241954ff31.java)

      at

org.apache.tapestry5.internal.services.IgnoredPathsFilter.service 
(IgnoredPathsFilter.java:62)

      at

$HttpServletRequestFilter_1241954ff2d.service 
($HttpServletRequestFilter_1241954ff2d.java)

      at

$HttpServletRequestHandler_1241954ff31.service 
($HttpServletRequestHandler_1241954ff31.java)

      at

org.apache.tapestry5.services.TapestryModule$2.service 
(TapestryModule.java:726)

      at

$HttpServletRequestHandler_1241954ff31.service 
($HttpServletRequestHandler_1241954ff31.java)

      at

$HttpServletRequestHandler_1241954ff2b.service 
($HttpServletRequestHandler_1241954ff2b.java)

      at
org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:127)
      at

org.apache.catalina.core.ApplicationFilterChain.internalDoFilter 
(ApplicationFilterChain.java:235)

      at

org.apache.catalina.core.ApplicationFilterChain.doFilter 
(ApplicationFilterChain.java:206)

      at

org.apache.catalina.core.StandardWrapperValve.invoke 
(StandardWrapperValve.java:233)

      at

org.apache.catalina.core.StandardContextValve.invoke 
(StandardContextValve.java:191)

      at

org.apache.catalina.core.StandardHostValve.invoke 
(StandardHostValve.java:128)

      at

org.apache.catalina.valves.ErrorReportValve.invoke 
(ErrorReportValve.java:102)

      at

org.apache.catalina.core.StandardEngineValve.invoke 
(StandardEngineValve.java:109)

      at

org.apache.catalina.connector.CoyoteAdapter.service 
(CoyoteAdapter.java:293)

      at

org.apache.coyote.http11.Http11Processor.process 
(Http11Processor.java:849)

      at

org.apache.coyote.http11.Http11Protocol 
$Http11ConnectionHandler.process(Http11Protocol.java:583)

      at

org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java: 
454)

      at java.lang.Thread.run(Thread.java:619)









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