NewAbstractAuthenticationToken creates a New AbstractAuthenticationToken.

NewAbstractUserDetailsAuthenticationProvider initializes the provider.

NewAuthenticatedUsernamePasswordAuthenticationToken creates a New authenticated token with authorities.

NewAuthenticationException constructs a New AuthenticationException with a message and a root cause.

NewAuthenticationExceptionWithoutCause constructs a New AuthenticationException with a message and no root cause.

NewCompromisedPasswordDecision creates a New instance of CompromisedPasswordDecision.

NewDaoAuthenticationProvider initializes the DaoAuthenticationProvider.

NewDefaultAuthenticationEventPublisher creates a New instance of DefaultAuthenticationEventPublisher.

NewDefaultPostAuthenticationChecks creates a New instance of DefaultPostAuthenticationChecks.

NewDefaultPreAuthenticationChecks creates a New instance of DefaultPreAuthenticationChecks.

NewUsernamePasswordAuthenticationToken creates a New unauthenticated token with principal and credentials.

AbstractAuthenticationToken is a base implementation for Authentication objects.

AuthenticationException is a concrete type for authentication-related exceptions.

DefaultAuthenticationEventPublisher is the default implementation of AuthenticationEventPublisher.

DefaultPostAuthenticationChecks for post-authentication checks.

DefaultPreAuthenticationChecks for pre-authentication checks.

NullEventPublisher is an implementation of AuthenticationEventPublisher that does nothing.

SimpleGrantedAuthority is a simple implementation of GrantedAuthority.

UsernamePasswordAuthenticationToken represents an Authentication implementation for a username/password.

Other necessary types and interfaces would need to be defined below.

Authentication represents a token for an authentication request or for an authenticated principal.

AuthenticationEventPublisher defines an interface for publishing authentication events.

GrantedAuthority represents a role or authority granted to a user.

Subject represents a subject that contains principals.

UserDetails represents user information for authentication.

UserDetailsService handles user details.