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https://issues.apache.org/jira/browse/TOMAHAWK-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12631227#action_12631227
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Kennard Consulting commented on TOMAHAWK-1170:
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It's not intermittent.
If your main page is called, say, 'index.jsf' but that's protected in the
web.xml by a <security-constraint>, then the filter won't fire via the JSP
route (you'll get bounced to, say, login.jsf) but it WILL fire via the
javax.faces.webapp.FacesServlet.service...
11:29:24,484 http-127.0.0.1-8080-1 WARN [FormAuthenticator] Unexpected error
forwarding to login page
java.lang.IllegalStateException: ExtensionsFilter not correctly configured. JSF
mapping missing. JSF pages not covered. Please see:
http://myfaces.apache.org/tomahawk/extensionsFilter.html
at
org.apache.myfaces.renderkit.html.util.AddResourceFactory.throwExtensionsFilterMissing(AddResourceFactory.java:389)
at
org.apache.myfaces.renderkit.html.util.AddResourceFactory.checkEnvironment(AddResourceFactory.java:349)
at
org.apache.myfaces.renderkit.html.util.AddResourceFactory.getInstance(AddResourceFactory.java:279)
at
org.apache.myfaces.webapp.filter.TomahawkFacesContextWrapper.<init>(TomahawkFacesContextWrapper.java:115)
at
org.apache.myfaces.webapp.filter.TomahawkFacesContextFactory.getFacesContext(TomahawkFacesContextFactory.java:85)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:260)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
...and it'll always fail.
This check is a nice idea, but it might be better off being a warning in the
logs rather than a hard error that stops the entire app.
> 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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