[jira] Resolved: (WW-2712) NPE in TemplatePageFilter.applyDecorator()

["Musachy Barroso (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/struts/browse/WW-2712?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Musachy Barroso resolved WW-2712.
---------------------------------

    Resolution: Not A Problem

I will close this issue as "Not a problem" considering that the Sitemesh plugin "allows Sitemesh templates to access Struts information. ", it is up to the user to make the Dispatcher be applied to the request, which is a requirement for the Sitemesh  plugin.

> NPE in TemplatePageFilter.applyDecorator()
> ------------------------------------------
>
>                 Key: WW-2712
>                 URL: https://issues.apache.org/struts/browse/WW-2712
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Plugin - SiteMesh
>    Affects Versions: 2.1.2
>            Reporter: Richard Wallace
>             Fix For: 2.1.3
>
>
> When the ActionContextCleanUp->FreeMarkerPageFilter->FilterDispatcher chain are being used and the cleanup filter is applied to /* and the page filter is applied to /* and the filter dispatcher is only applied to *.action, the following NPE occurs:
> java.lang.NullPointerException
> 	at org.apache.struts2.sitemesh.TemplatePageFilter.applyDecorator(TemplatePageFilter.java:104)
> 	at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:62)
> 	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1041)
> 	at org.apache.struts2.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:97)
> 	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1041)
> 	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:354)
> In looking at TemplatePageFilter, it seems to assume that a Dispatcher has been set for the thread.  Since the FilterDispatcher is never hit, this is not the case.  It seems the only way to make this work is to make sure all three of the filters is applied to the same path.

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