com.atlassian.confluence.security
Interfaces 
CaptchaAware
CaptchaManager
DeactivatedUserChecker
ExternalUserManagementAware
GateKeeper
ImplementsIsPermitted
PermissionCheckExemptions
PermissionDelegate
PermissionManager
PermissionManager.Criterion
SetSpacePermissionChecker
SpacePermissionManager
Classes 
AbstractSpacePermissionManager
CachingSpacePermissionManager
CleanCaptchaEngine
ConfluenceAdministratorsPermissionCheckExemptions
ConfluenceCaptchaEngine
ConfluenceGroupCache
ConfluenceImageCaptchaService
ConfluenceRoleMapper
ContentPermission
ContentPermissionSet
CrowdDeactivatedUserChecker
DefaultCaptchaManager
DefaultPermissionManager
DefaultSetSpacePermissionChecker
DefaultSpacePermissionManager
DistortedCaptchaEngine
DownloadGateKeeper
MockPermissionManager
Permission
PermissionCheckDispatcher
PermissionCheckDispatcherResultCache
PermissionHelper
PermissionsFixer
PermissionUtils
SpacePermission
SpacePermissionCaseFixer
SpacePermissionCheckDispatcherCoordinator
SpacePermissionCoordinator
ThreadLocalPermissionsCache
Exceptions 
EntityRuntimeException
InvalidOperationException