org.apache.commons.httpclient.auth
Interfaces 
AuthScheme
CredentialsProvider
Classes 
AuthChallengeParser
AuthChallengeProcessor
AuthPolicy
AuthSchemeBase
AuthScope
AuthState
BasicScheme
DigestScheme
HttpAuthenticator
HttpAuthRealm
NTLMScheme
RFC2617Scheme
Exceptions 
AuthChallengeException
AuthenticationException
CredentialsNotAvailableException
InvalidCredentialsException
MalformedChallengeException