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https://issues.apache.org/jira/browse/TAPESTRY-2723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12663012#action_12663012
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Andreas Andreou commented on TAPESTRY-2723:
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Didn't quite get time for this yet - a quick digging into jira however showed
TAPESTRY-2530, TAPESTRY-2382 and TAPESTRY-2604... From the description the
fix for the first might be causing this - and on the other hand, the proposed
solution for this may
trigger TAPESTRY-2530 again (would have been nice if there was a test case).
Anyway, as i said, i havent looked at the code yet, but for the record i've
managed to (sometimes)
reproduce this in 1.6u11VMs as well. It seems to happen when hitting a 'not yet
fully started' server with
simultaneous requests for multiple pages
> Compenents that should be found are not found during page loading
> -----------------------------------------------------------------
>
> Key: TAPESTRY-2723
> URL: https://issues.apache.org/jira/browse/TAPESTRY-2723
> Project: Tapestry
> Issue Type: Bug
> Components: Framework
> Affects Versions: 4.1.6
> Environment: Windows XP Service pack 3 - 1.86 GHz, 3 GB of ram -
> JBoss - Tapestry 4.1.6
> Reporter: michael wasserman
> Assignee: Andreas Andreou
> Attachments: StackTrace.txt
>
>
> When AbstractComponent.getComponents(String) is called the HashMap
> "_components" is unexpectedly null, causing an ApplicationRuntimeException
> which indicates that the given component (id passed as parameter to
> getComponents(String)), does not exist. We have confirmed that in every
> instance the given component does exist in the given page.
> This problem happens randomly on a variety of pages.
> This could be an indication of a thread safety problem in the PageLoader
> class. We can duplicate the problem, (unreliably), via our selenium test
> suite.
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