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https://issues.apache.org/jira/browse/TOMAHAWK-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12631886#action_12631886
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Leonardo Uribe commented on TOMAHAWK-1170:
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The rule could be: If extensions filter checking is on, do not use
TomahawkFacesContextWrapper, so the problem present dissapear.
Maybe is more user friendly this behavior.
> Resource mapping missing / throwExtensionsFilterMissing reported incorrectly
> under load
> ---------------------------------------------------------------------------------------
>
> Key: TOMAHAWK-1170
> URL: https://issues.apache.org/jira/browse/TOMAHAWK-1170
> 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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