What exactly do you mean Romain?
We could also call WebContextService#startContext in
WebBeansConfigurationListener#sessionDestroyed.
But don't know if it's the best way.


2013/4/16 Romain Manni-Bucau <[email protected]>

> the timeout method can simply set/remove the threadlocals already in place
>
> *Romain Manni-Bucau*
> *Twitter: @rmannibucau <https://twitter.com/rmannibucau>*
> *Blog: **http://rmannibucau.wordpress.com/*<http://rmannibucau.wordpress.com/>
> *LinkedIn: **http://fr.linkedin.com/in/rmannibucau*
> *Github: https://github.com/rmannibucau*
>
>
>
> 2013/4/16 Thomas Andraschko <[email protected]>
>
>> Hmm, i think we must pass the HttpSession from
>> WebBeansConfigurationListener#sessionDestroyed to
>> WebContextsService#getSessionContext.
>> The current logic always gets the session from the request. This does of
>> course not work in this case.
>> Any idea to do this in a clean way and without ThreadLocal's or other
>> hacks?
>>
>>
>> 2013/4/16 Thomas Andraschko <[email protected]>
>>
>>> Issue created -> https://issues.apache.org/jira/browse/OWB-841
>>>
>>>
>>> 2013/4/16 Thomas Andraschko <[email protected]>
>>>
>>>> Hey Mark,
>>>>
>>>> its not a exception, i just tracked the method calls :)
>>>> It's just the warning the i mentioned in the first mail.
>>>>
>>>> I will play a little bit and create a ticket. Maybe it's also related
>>>> to CODI, as i don't have a bean with @PreDestroy.
>>>>
>>>>
>>>> 2013/4/16 Mark Struberg <[email protected]>
>>>>
>>>>> yup thats right, there is something wrong.
>>>>> But there must be something special in your situation as I've never
>>>>> seen this in production yet.
>>>>>
>>>>> Can you please create a JIRA so we can track it?
>>>>> Please also add
>>>>>
>>>>> * which version of owb
>>>>> * which servlet container
>>>>> * some info whats going on in your thread
>>>>>
>>>>> > InjectionTargetProducer.preDestroy(InjectionTargetProducer.java:132)
>>>>> It seems that you have a @PreDestroy method which has a @SessionScoped
>>>>> bean as injection point.
>>>>> Can you please reduce your session timeout to 2 minutes and set a
>>>>> breakpoint to the place where the Exception gets thrown
>>>>> (WebContextsService.java:793)? And then you should be able to see which
>>>>> Bean did cause this problem if you go down call stack.
>>>>>
>>>>> And now some info about why I hacked the lazy session start:
>>>>> Initially we started the SessionContext for each and every request.
>>>>> But that means that we also did this for JSF Resource requests (png, css,
>>>>> etc) or other requests which simply don't need any session. To reduce the
>>>>> number of sessions we now only request one if a SessionScoped bean gets
>>>>> requested.
>>>>>
>>>>> This was especially hard in our case as we configured 1 node to only
>>>>> serve all the resources of our app (and all our other nodes only serve
>>>>> 'real' pages) - which was another nice speed bump ;)
>>>>> You can look at MyFaces / Jakob Korherrs staticresourcehandler if you
>>>>> have a performance intense app.
>>>>>
>>>>> LieGrue,
>>>>> strub
>>>>>
>>>>>
>>>>>   ------------------------------
>>>>>  *From:* Thomas Andraschko <[email protected]>
>>>>> *To:* [email protected]; Mark Struberg <[email protected]>
>>>>> *Sent:* Tuesday, 16 April 2013, 9:00
>>>>> *Subject:* Re: Could NOT lazily initialize session context because of
>>>>> null RequestContext
>>>>>
>>>>> Here is the stacktrace:
>>>>>
>>>>>     at
>>>>> org.apache.webbeans.web.context.WebContextsService.lazyStartSessionContext(WebContextsService.java:793)
>>>>>     at
>>>>> org.apache.webbeans.web.context.WebContextsService.getSessionContext(WebContextsService.java:708)
>>>>>     at
>>>>> org.apache.webbeans.web.context.WebContextsService.getCurrentContext(WebContextsService.java:248)
>>>>>     at
>>>>> org.apache.webbeans.context.ContextFactory.getStandardContext(ContextFactory.java:185)
>>>>>     at
>>>>> org.apache.webbeans.container.BeanManagerImpl.getContext(BeanManagerImpl.java:307)
>>>>>     at
>>>>> org.apache.webbeans.portable.creation.AbstractProducer.getCreationalContext(AbstractProducer.java:105)
>>>>>     at
>>>>> org.apache.webbeans.portable.creation.InjectionTargetProducer.preDestroy(InjectionTargetProducer.java:132)
>>>>>     at
>>>>> org.apache.webbeans.component.InjectionTargetWrapper.preDestroy(InjectionTargetWrapper.java:98)
>>>>>     at
>>>>> org.apache.webbeans.component.AbstractOwbBean.destroy(AbstractOwbBean.java:251)
>>>>>     at
>>>>> org.apache.webbeans.context.AbstractContext.destroyInstance(AbstractContext.java:205)
>>>>>     at
>>>>> org.apache.webbeans.context.AbstractContext.destroy(AbstractContext.java:227)
>>>>>     at
>>>>> org.apache.webbeans.web.context.SessionContextManager.destroySessionContextWithSessionId(SessionContextManager.java:84)
>>>>>     at
>>>>> org.apache.webbeans.web.context.WebContextsService.destroySessionContext(WebContextsService.java:495)
>>>>>     at
>>>>> org.apache.webbeans.web.context.WebContextsService.endContext(WebContextsService.java:216)
>>>>>     at
>>>>> org.apache.webbeans.servlet.WebBeansConfigurationListener.sessionDestroyed(WebBeansConfigurationListener.java:197)
>>>>>     at
>>>>> org.eclipse.jetty.server.session.AbstractSessionManager.removeSession(AbstractSessionManager.java:801)
>>>>>     at
>>>>> org.eclipse.jetty.server.session.AbstractSession.timeout(AbstractSession.java:340)
>>>>>     at
>>>>> org.eclipse.jetty.server.session.HashSessionManager.scavenge(HashSessionManager.java:320)
>>>>>     at
>>>>> org.eclipse.jetty.server.session.HashSessionManager$2.run(HashSessionManager.java:282)
>>>>>     at java.util.TimerThread.mainLoop(Timer.java:555)
>>>>>     at java.util.TimerThread.run(Timer.java:505)
>>>>>
>>>>> It happens when the session expires.
>>>>> Any idea? IMO it should not try to lazy start a session if the session
>>>>> will be destroyed.
>>>>>
>>>>>
>>>>> 2013/4/12 Thomas Andraschko <[email protected]>
>>>>>
>>>>> Hi Mark,
>>>>>
>>>>> hmm, weird. I always get them at runtime. 7-8 times today. I only
>>>>> changed some pages and layout stuff and refreshed the page.
>>>>> Maybe it's because Jetty's change scanning.
>>>>> I will try it with Tomcat on Monday.
>>>>>
>>>>>
>>>>>
>>>>> 2013/4/12 Mark Struberg <[email protected]>
>>>>>
>>>>> Hi Thomas, this sometimes happens at container startup if the
>>>>> container code invokes some SessionScoped event. But the Session is only
>>>>> available in a request of course. this should be in the code already since
>>>>> a long time (1.1.2 or so)
>>>>>
>>>>> LieGrue,
>>>>> strub
>>>>>
>>>>>
>>>>>
>>>>>   ------------------------------
>>>>>  *From:* Thomas Andraschko <[email protected]>
>>>>> *To:* [email protected]
>>>>> *Sent:* Friday, April 12, 2013 4:40 PM
>>>>> *Subject:* Could NOT lazily initialize session context because of
>>>>> null RequestContext
>>>>>
>>>>> Hi,
>>>>>
>>>>> i have many times this warning during development:
>>>>>
>>>>> WARNING: Could NOT lazily initialize session context because of null
>>>>> RequestContext
>>>>>
>>>>> Why does this occur and how can i avoid it?
>>>>> I never mentioned this error in my old application which runned
>>>>> perfectly with 1.1.6 (or 1.1.5, cant remember)
>>>>>
>>>>> Regards,
>>>>> Thomas
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>
>

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