org.springframework.security.oauth2.common.exceptions
Classes 
OAuth2ExceptionDeserializer
OAuth2ExceptionSerializer
Exceptions 
BadClientCredentialsException
ClientAuthenticationException
InsufficientScopeException
InvalidClientException
InvalidGrantException
InvalidRequestException
InvalidScopeException
InvalidTokenException
OAuth2Exception
RedirectMismatchException
SerializationException
UnapprovedClientAuthenticationException
UnauthorizedClientException
UnsupportedGrantTypeException
UnsupportedResponseTypeException
UserDeniedAuthorizationException