problem accessing repo through JNDI

Ok, I have now setup my repo as outlined here:
http://jackrabbit.apache.org/shared-j2ee-resource-howto.html

I have one webapp that has setup the repo for access through WebDAV. I  
have another application that only needs read-only access to the repo.  
The WebDAV seems to be working just fine, but the second webapp has  
constantly been having problems gaining access to the repo.

I am getting this error:
org.apache.naming.NamingContext lookup
WARNING: Unexpected exception resolving reference
javax.jcr.RepositoryException: The repository home /Users/warnero/test- 
repo appears to be in use since the file named .lock is locked by  
another process.

Any help is greatly appreciated, I feel like I'm slowly beating my  
brains to a pulp here :D.

-warner