leleuj/spring-security-oauth-client — pull request #1 by JulianH (2012-09-27 08:21:38+00:00)
Title: fix for npe which occurs if returning unauthenticated from provider

if you are cancel the authentication by clicking back or abort at the provider, the credentials are not set and a npe is thrown. so check if there are authentication credentials and simply return if not.