[jira] [Updated] (TAP5-986) A request can fail with an NPE in some cases, when a Tapestry page is acting as the servlet container error page

["Howard M. Lewis Ship (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAP5-986?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Howard M. Lewis Ship updated TAP5-986:
--------------------------------------

    Summary: A request can fail with an NPE in some cases, when a Tapestry page is acting as the servlet container error page  (was: sendError in onActivate / Tapestry error dispatching)
    
> A request can fail with an NPE in some cases, when a Tapestry page is acting as the servlet container error page
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: TAP5-986
>                 URL: https://issues.apache.org/jira/browse/TAP5-986
>             Project: Tapestry 5
>          Issue Type: Bug
>          Components: tapestry-core
>    Affects Versions: 5.1.0.5
>            Reporter: Christophe Cordenier
>            Assignee: Kalle Korhonen
>             Fix For: 5.3.6, 5.4
>
>         Attachments: TAP5-986.txt
>
>
> With this kind of configuration in web.xml :
> <filter-mapping>
> 	<filter-name>tapestryFilter</filter-name>
> 	<url-pattern>/*</url-pattern>
> 	<dispatcher>ERROR</dispatcher>
> 	<dispatcher>REQUEST</dispatcher>
> </filter-mapping>
> <error-page>
> 	<error-code>403</error-code>
> 	<location>/error/AccessDenied</location>
> </error-page>
> <error-page>
> 	<error-code>404</error-code>
> 	<location>/error/NotFound</location>
> </error-page>
> RestoreDirtySessionObjects is generating a NullPointerException with this line :
> Session session = request.getSession(false);
> It seems that the dispatching is done in one single thread, then the initial class to RestoreDirtySessionObjects is delay, and request object is lost.

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