Glassfish and FilterRedirector

All,

I am using Glassfish V2UR2 and my web application is using version 2.5 
of the servlet API.  I have basic Cactus servlet tests working, however 
I cannot get filter tests to work.  I think this has to do with the 
cactifywar ant task not adding the filter redirector to the web.xml.  I 
have one defined in the task, but it doesn't show up when the war is 
cactified.

The short question, can I test filters with 2.5 of the servlet API?  
Everything else seems to work fine except filters.  I did see older 
threads on the list that servlets using 2.4 and greater of the API were 
not supported. Has this been updated?

Finally if I am being an idiot and it is not supported, is there a 
workaround or another tool that can test filters in container with the 
newest servlet APIs.

Thanks!