程序包分层结构:
类分层结构
- java.lang.Object
- org.springframework.security.authentication.AbstractAuthenticationToken (implements org.springframework.security.core.Authentication, org.springframework.security.core.CredentialsContainer)
- org.springframework.security.oauth2.server.authorization.authentication.OAuth2AuthorizationGrantAuthenticationToken
 
- org.springframework.security.oauth2.server.authorization.authentication.OAuth2PasswordAuthenticationProvider (implements org.springframework.security.authentication.AuthenticationProvider)