Spring Framework

Which of the following is FIRST step in user authentication process?

The security context is established by calling SecurityContextHolder.getContext().setAuthentication(...), passing in the returned authentication object

The username and password are obtained and combined into an instance of UsernamePasswordAuthenticationToken

The AuthenticationManager returns a fully populated Authentication instance on successful authentication

The UsernamePasswordAuthenticationToken is passed to an instance of AuthenticationManager for validation

Answer:
The username and password are obtained and combined into an instance of UsernamePasswordAuthenticationToken

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