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https://issues.apache.org/jira/browse/MYFACES-4202?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16362994#comment-16362994
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Eduardo Breijo commented on MYFACES-4202:
-----------------------------------------

I think what we should avoid calling on every request 
ClassUtils.simpleClassForName() which will end up calling Class.forName(). By 
caching FacesServletMapping, do we avoid that? How do you propose caching the 
FacesServletMapping?

> [perf] FacesServletMappingUtils.isFacesServlet calls 
> ClassUtils.simpleClassForName on every request
> ---------------------------------------------------------------------------------------------------
>
>                 Key: MYFACES-4202
>                 URL: https://issues.apache.org/jira/browse/MYFACES-4202
>             Project: MyFaces Core
>          Issue Type: Improvement
>          Components: JSR-372
>    Affects Versions: 2.3.0-beta
>            Reporter: Eduardo Breijo
>            Assignee: Eduardo Breijo
>            Priority: Major
>             Fix For: 2.3.0
>
>
> FacesServletMappingUtils.isFacesServlet is invoked on every request. This 
> means that ClassUtils.simpleClassForName() will also be invoked on every 
> request. We need to cache the boolean value for each servletClassName to 
> improve performance.



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