Move spam to spam folder

Hello all,

   I have recently set up a James mail server. I have set up SPF, DKIM, 
spamassassin successfully. I can see the emails have the header. 
However, I couldn't find how to move spam mail or SPF softfail mail to a 
specific folder.

   I have searched in the internet and found there was a mailet 
ToRecipientFolder in version 3.0-beta5. But, it doesn't exist in 3.6 
anymore. I also check

http://james.apache.org/mailet/standard/mailet-report.html

but I doesn't find any mailet that does similar jobs.

   Can anyone give me some suggestion?

Thanks in advance

Pang