CAS and Confluence

[Jared]

Hello,

I'm evaluating Confluence and need CAS authentication.  I've followed  
the instructions here:
http://www.ja-sig.org/wiki/display/CAS/Confluence+as+CAS+Client

The installation steps and configuration seem to be pretty clear.   
However, I've run into a problem when trying to log-in into Confluence.

When I try to load the confluence home page, it appears that I am  
properly authenticated through our CAS server.  I'm then redirected  
back to Confluence.  However, Confluence prompts me for a username/ 
password even though I'm authenticated under CAS.  It also won't  
allow me to log-in via any previously made Confluence account.

When I look in the atlassian-confluence.log file I see this:

2006-10-16 12:34:46,182 ERROR  
[soulwing.confluence.cas.ConfluenceCasAuthenticator] getUser getUser 
() for CAS user MY_CAS_USERNAME returned null

I then tried adding a Confluence user with the same username as my  
CAS username.  This allows me to log-in through CAS, but there are a  
bunch of issues regarding the inability to log-out or for other local  
accounts to log-in.  I'm not sure whether these are related.

The directions make no mention of have to pre-populate the Confluence  
user database with CAS user names, so I'm suspecting that I've  
configured something incorrectly.

I tried emailing Carl Harris (the Confluence CAS plug-in) last week  
but haven't heard back.  If anyone has any ideas, please let me know.

I'm using the stand-alone Confluence Version: 2.2.9 Build:#527

Thanks,
-jared