Where did you fix it? Is it in WICKET_1_2 branch, so i can get it via SVN?

And could you tell me where the "underlying problem" is? I could try
helping to eliminate...

Marco

Johan Compagner wrote:
> i did make a quick fix so that that null pointer doesn't happen.
> But the problem is that it doesn't really fix the underlying problem.
> I hope that i can reproduce that somehow at some time..
> 
> johan
> 
> 
> On 7/21/06, Marco Geier <[EMAIL PROTECTED]> wrote:
>>
>> no,  i can't reproduce it, it just occured twice today on the production
>> server ( an online auction) when there was heavy traffic.
>>
>> I could however add some additional logging, so when it happens again we
>> *might* know why.
>> Could you give some initial hints, what and where to look for?
>>
>> I've had similar load on the production system last week, without these
>> errors. But this week we're running on an IBM VM (as opposed to SUN VM
>> before). Could this affect the problem?
>>
>> Marco
>>
>>
>> Johan Compagner wrote:
>> > this is very strange that it still happens on certain cases...
>> >
>> > Can you reproduce it? Can you give a testcase?
>> >
>> > johan
>> >
>> >
>> > On 7/21/06, Marco Geier <[EMAIL PROTECTED]> wrote:
>> >>
>> >> Today my production system threw a NullPointerException:
>> >> (See stack trace below)
>> >>
>> >> This is with wicket 1.2 final (for line-number references).
>> >> The line the NPE occured is:
>> >>
>> >> "session.removeAttribute(attributeForId(entry.getNumericId()));"
>> >>
>> >> i don't have any customized stuff here, nor do i have more than one
>> >> pagemap, so i'm tempted to declare this as a reace condition-triggered
>> >> bug. (because it just occured today, after 4 weeks without problems,
>> but
>> >> today the app was quite busy, lots of concurrent requests...)
>> >>
>> >> Any ideas?
>> >>
>> >> Rgds,
>> >>
>> >> Marco
>> >>
>> >>
>> >> 2006-07-21 10:04:07,035 ERROR [wicket.RequestCycle]
>> >> java.lang.NullPointerException
>> >>         at wicket.PageMap.removeEntry(PageMap.java:335)
>> >>         at wicket.PageMap.access(PageMap.java:635)
>> >>         at wicket.PageMap.get(PageMap.java:459)
>> >>         at wicket.Session.getPage(Session.java:413)
>> >>         at
>> >>
>> >>
>> wicket.request.compound.DefaultRequestTargetResolverStrategy.resolveRenderedPage
>>
>> >>
>> >> (DefaultRequestTargetResolverStrategy.java:149)
>> >>         at
>> >> wicket.request.compound.DefaultRequestTargetResolverStrategy.resolve(
>> >> DefaultRequestTargetResolverStrategy.java:92)
>> >>         at
>> >> wicket.request.compound.AbstractCompoundRequestCycleProcessor.resolve(
>> >> AbstractCompoundRequestCycleProcessor.java:48)
>> >>         at wicket.RequestCycle.step(RequestCycle.java:942)
>> >>         at wicket.RequestCycle.steps(RequestCycle.java:1034)
>> >>         at wicket.RequestCycle.request(RequestCycle.java:453)
>> >>         at wicket.protocol.http.WicketServlet.doGet(WicketServlet.java
>> >> :215)
>> >>         at
>> javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
>> >>         at
>> javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
>> >>         at
>> >> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
>> >> ApplicationFilterChain.java:252)
>> >>         at
>> >> org.apache.catalina.core.ApplicationFilterChain.doFilter(
>> >> ApplicationFilterChain.java:173)
>> >>         at
>> >> de.eyetea.hfax.monitoring.BieterSessionFilter.doFilter(
>> >> BieterSessionFilter.java:126)
>> >>         at
>> >> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
>> >> ApplicationFilterChain.java:202)
>> >>         at
>> >> org.apache.catalina.core.ApplicationFilterChain.doFilter(
>> >> ApplicationFilterChain.java:173)
>> >>         at de.eyetea.TargetFilter.doFilter(TargetFilter.java:47)
>> >>         at
>> >> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
>> >> ApplicationFilterChain.java:202)
>> >>         at
>> >> org.apache.catalina.core.ApplicationFilterChain.doFilter(
>> >> ApplicationFilterChain.java:173)
>> >>         at
>> >> org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(
>> >> ReplyHeaderFilter.java:96)
>> >>         at
>> >> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(
>> >> ApplicationFilterChain.java:202)
>> >>         at
>> >> org.apache.catalina.core.ApplicationFilterChain.doFilter(
>> >> ApplicationFilterChain.java:173)
>> >>         at
>> >> org.apache.catalina.core.StandardWrapperValve.invoke(
>> >> StandardWrapperValve.java:213)
>> >>         at
>> >> org.apache.catalina.core.StandardContextValve.invoke(
>> >> StandardContextValve.java:178)
>> >>         at
>> >> org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(
>> >> CustomPrincipalValve.java:54)
>> >>         at
>> >> org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(
>> >> SecurityAssociationValve.java:174)
>> >>         at
>> >> org.apache.catalina.authenticator.AuthenticatorBase.invoke(
>> >> AuthenticatorBase.java:432)
>> >>         at
>> >> org.jboss.web.tomcat.security.JaccContextValve.invoke(
>> >> JaccContextValve.java:74)
>> >>         at
>> >> org.apache.catalina.core.StandardHostValve.invoke(
>> StandardHostValve.java
>> >> :126)
>> >>         at
>> >> org.apache.catalina.valves.ErrorReportValve.invoke(
>> ErrorReportValve.java
>> >> :105)
>> >>         at
>> >> org.apache.catalina.core.StandardEngineValve.invoke(
>> >> StandardEngineValve.java:107)
>> >>         at
>> >> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java
>> >> :148)
>> >>         at
>> >> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
>> :869)
>> >>
>> >>         at
>> >>
>> >>
>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection
>>
>> >>
>> >> (Http11BaseProtocol.java:664)
>> >>         at
>> >> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(
>> >> PoolTcpEndpoint.java:527)
>> >>         at
>> >> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(
>> >> LeaderFollowerWorkerThread.java:80)
>> >>         at
>> >> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(
>> >> ThreadPool.java:684)
>> >>         at java.lang.Thread.run(Thread.java:797)
>> >>
>> >>
>> >>
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>> >
>> >
>> >
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>>
>> -- 
>> ___________________________
>>
>> Dipl.-Ing. Marco Geier
>> EyeTea GmbH
>> Germany
>> phone   +49 (0)721 662464-0
>> fax     +49 (0)721 662464-1
>> mobile  +49 (0)177 6579590
>> [EMAIL PROTECTED]
>>
>> -------------------------------------------------------------------------
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>>
> 
> 
> ------------------------------------------------------------------------
> 
> -------------------------------------------------------------------------
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> Join SourceForge.net's Techsay panel and you'll get the chance to share your
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-- 
___________________________

Dipl.-Ing. Marco Geier
EyeTea GmbH
Germany
phone   +49 (0)721 662464-0
fax     +49 (0)721 662464-1
mobile  +49 (0)177 6579590
[EMAIL PROTECTED]

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