Excessive log noise for invalid login

[tonytw1]

2017-10-08 08:21:41.009 ERROR 8 --- [nio-8080-exec-4] w.a.UsernamePasswordAuthenticationFilter : An internal error occurred while trying to authenticate the user.

org.springframework.security.authentication.InternalAuthenticationServiceException: uk.co.squadlist.web.exceptions.UnknownMemberException