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From Christian Köberl (JIRA) <j...@apache.org>
Subject [jira] [Commented] (TAP5-2152) NPE in Form on Websphere 8 after applying load
Date Wed, 31 Jul 2013 12:31:48 GMT

    [ https://issues.apache.org/jira/browse/TAP5-2152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13725177#comment-13725177
] 

Christian Köberl commented on TAP5-2152:
----------------------------------------

The problem cannot be reproduced with JIT disabled - we're just investigating this with IBM.
                
> NPE in Form on Websphere 8 after applying load
> ----------------------------------------------
>
>                 Key: TAP5-2152
>                 URL: https://issues.apache.org/jira/browse/TAP5-2152
>             Project: Tapestry 5
>          Issue Type: Bug
>          Components: tapestry-core
>    Affects Versions: 5.2.6
>            Reporter: Christian Köberl
>              Labels: websphere
>
> A NullPointerException occurs Form.java:406 (Tapestry 5.2.6) when applying load - in
any application deployed to Websphere 8.
> Here's the corresponding line from Form.java:406:
> resources.triggerEvent(EventConstants.PREPARE_FOR_RENDER, context, null);
> The NPE first is raised after some parallel users are working with the application -
before that everything works fine. After the first occurrence, the NPE is raised on *any*
Form render on *any* page for *all* users. We have to restart the application to get it working
again. We can reproduce the error with some load but the first NPE happens on different pages
- so that's no clue.
> The behavior can be reproduced with a quite simple application with some pages with forms:
https://github.com/porscheinformatik/tapestry-was8
> The behavior *cannot* be reproduced with JIT turned off.

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