Given a clientAuthentication for a component service is required. If it is not provided, or if the authentication fails, SY responds with the message "SWITCHYARD014014: Required policies have not been provided: clientAuthentication".

The meaning of this message is not obvious. It would be better to respond with a more meaningful message, or at least with the 'login failed' message
"SWITCHYARD014200: authenticate LoginException: PBOX000070: Password invalid/Password required: javax.security.auth.login.FailedLoginException: PBOX000070: Password invalid/Password required".