Custom Authentication Manager with Spring Security and Java Configuration

Question

I am using Spring Security with SpringMVC to create a web application (I will refer to this as the WebApp for clarity) that speaks to an existing application (I will refer t

Answer 1

In its most simplest:

@Override
    public Authentication authenticate(Authentication auth) throws AuthenticationException {
        String username = auth.getName();
        String password = auth.getCredentials().toString();
        // to add more logic
        List grantedAuths = new ArrayList<>();
        grantedAuths.add(new SimpleGrantedAuthority("ROLE_USER"));
        return new UsernamePasswordAuthenticationToken(username, password, grantedAuths);
    }