Callback triggered when an authentication attempt for a {@code Subject} has succeeded.
@param token the authentication token submitted during the {@code Subject} (user)'s authentication attempt.
@param info the authentication-related account data acquired after authentication for the corresponding {@code Subject}.
Callback triggered when an authentication attempt for a {@code Subject} has succeeded.
@param token the authentication token submitted during the {@code Subject} (user)'s authentication attempt. @param info the authentication-related account data acquired after authentication for the corresponding {@code Subject}.