[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-2544) Exception handling for javax.persistence.OptimisticLockException fails the second time

[Pete Muir (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBSEAM-2544?page=comments#action_12406120 ] 
            
Pete Muir commented on JBSEAM-2544:
-----------------------------------

Still reproducible in wiki on trunk.

> Exception handling for javax.persistence.OptimisticLockException fails the second time
> --------------------------------------------------------------------------------------
>
>                 Key: JBSEAM-2544
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-2544
>             Project: JBoss Seam
>          Issue Type: Bug
>          Components: Exception Handling
>    Affects Versions: 2.0.1.CR2
>            Reporter: Christian Bauer
>            Priority: Blocker
>             Fix For: 2.1.0.GA, 2.0.2.CR1
>
>
> Install the wiki, run it in dev profile. 
>     <exception class="javax.persistence.OptimisticLockException">
>         <end-conversation/>
>         <!-- TODO: This fails randomly, it works only once and then we don't get the message anymore?! -->
>         <redirect view-id="/message.xhtml">
>             <message severity="WARN">#{messages['lacewiki.msg.OptimisticLockError']}</message>
>         </redirect>
>     </exception>
> Generate this exception by editing directory 'BBB' in two browser tabs, click Update in one of them, then click Update in the other. 
> If you are lucky, you will now be on the message page with a proper error message. If you don't have a message, that's the bug. 
> If you get a message, try again and repeat the concurrent update procedure. It will fail at some point, I needed no more than three attempts. Occasionally I get this exception (always doing the same clicks!):
> javax.el.ELException: /message.xhtml: Property 'handledException' not found on type org.jboss.seam.Namespace
> 	com.sun.facelets.compiler.TextInstruction.write(TextInstruction.java:48)
> Once you get that exception, it will never work again and you will always get this exception (I think).
> There are several open issues related to exception handling and message passing, this probably duplicates them. My guess is that we have a serious race condition somewhere in the exception handling code.

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