Callback triggered when an authentication attempt for a {@code Subject} has failed.
@param token the authentication token submitted during the {@code Subject} (user)'s authentication attempt.
@param ae the {@code AuthenticationException} that occurred as a result of the attempt.
Callback triggered when an authentication attempt for a {@code Subject} has failed.
@param token the authentication token submitted during the {@code Subject} (user)'s authentication attempt. @param ae the {@code AuthenticationException} that occurred as a result of the attempt.