How to register a SecurityProvider?

[Greg Rabil]

Hello,   I'm wondering how to register my own SecurityProvider for use by the SimpleAuthenticationHandler.  The SimpleAuthenticationHandler looks in the MessageContext for a SecurityProvider and will create a SimpleSecurityProvider if one is not found.  My question is how do I register my own SecurityProvider implementation so that it is found in the MessageContext?  I was expecting to find this documented as a property somewhere, but I can't seem to find any examples of how to do this.  I see how to replace the SimpleAuthenticationHandler with my own, but I'd prefer to use this implementation as it fits my needs, but I just want to use my SecurityProvider implementation which validates the username and password against a database.   Thanks, Greg   P.S.  I searched the mailing list archives, and I see a similar question dating back to 07/2002, but no adequate answer was provided.