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From "Kennard Consulting (JIRA)" <>
Subject [jira] Commented: (TOMAHAWK-1170) Resource mapping missing / throwExtensionsFilterMissing reported incorrectly under load
Date Tue, 16 Sep 2008 23:41:44 GMT


Kennard Consulting commented on TOMAHAWK-1170:

Thanks Leonardo, that appears to work.

Mind you, it sounds as if the default behaviour conflicts with itself unnecessarily, so perhaps
that could be revisited?

> Resource mapping missing / throwExtensionsFilterMissing reported incorrectly under load
> ---------------------------------------------------------------------------------------
>                 Key: TOMAHAWK-1170
>                 URL:
>             Project: MyFaces Tomahawk
>          Issue Type: Bug
>          Components: ExtensionsFilter
>    Affects Versions: 1.1.7-SNAPSHOT
>            Reporter: Simon Kitching
> It has been reported by two users that under load an application using Tomahawk intermittently
throws an exception claiming "resource mapping missing".
> This message is meant to be thrown when a component in a request wants to register stuff
for the extensions filter to output, but the current request never passed through the extensions
filter. This is a sanity check to ensure that people that misconfigure the ExtensionsFilter
get a helpful error message rather than just having tomahawk components that need additional
resources acting weirdly.
> A workaround is to disable this safety check. The first reporter of this problem did
disable the check and found the issue disappeared.
> The problem appears to be a race condition between multiple threads *reading* a map;
at least that was the only piece of code I found that had any obvious thread race issues.
I can't remember the exact piece of code for the moment, but will update this issue when I
find it again.

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