com.atlassian.confluence.user
Interfaces 
AjaxUserProfileEditor
PersonalInformationManager
SearchEntitiesManager
UserAccessor
UserContentManager
UserDetailsManager
Classes 
AuthenticatedUserThreadLocal
AuthenticatorOverwrite
ConfigurableMappingResources
ConfluenceAuthenticator
ConfluenceGroupJoiningAuthenticator
ConfluenceHibernateAccessor
ConfluenceLDAPCredentialsProvider
ConfluenceLDAPGroupJoiningAuthenticator
ConfluencePropertySetFactory
ConfluenceUserConfiguration
ConfluenceUserContainerConfiguration
ConfluenceUserPreferences
DefaultAjaxUserProfileEditor
DefaultPersonalInformationManager
DefaultSearchEntitiesManager
DefaultUserAccessor
DefaultUserContentManager
DefaultUserDetailsManager
HibernateUserProviderFactory
PermittedUserFinder
PermittedUserFinder.SearchResult
PersonalInformation
SessionKeys
ThreadLocalProfilePictureCache
UnknownUser
UserCacheFillerJob
UserConfigurationChecker
UserInterfaceState
UsernameToUserTranslatingPaginationSupport
UserPickerFilter
UserPreferencesKeys