Custom AuthenticationProvider is not called

Question

I want to have a basic auth-protected REST app. I followed the general instructions from http://www.baeldung.com/spring-security-authentication-provider in order to get the

Answer 1

You receive a response with status code 401. This is the "unauthorized" http status code. It is probably caused by a missing/malformed Authorization header in your request.

You are using Http-Basic: it requires the following header in the request :

Authorization: Basic QWxhZGRpbjpPcGVuU2VzYW1l

where the string QWxhZGRpbjpPcGVuU2VzYW1l is the string : base64 encoded.