- ACFUtil
 - AnnotationProcessor
 - ApacheCommonsExceptionUtil
 - ApacheCommonsExceptionUtil.Nestable
 - ApacheCommonsLangUtil
 - BaseCommand
 - CatchAll
 - CatchUnknown
 - CommandAlias
 - CommandCompletion
 - CommandCompletionContext
 - CommandCompletions
 - CommandCompletions.AsyncCommandCompletionHandler
 - CommandCompletions.CommandCompletionHandler
 - CommandCompletions.SyncCompletionRequired
 - CommandConditions
 - CommandConditions.Condition
 - CommandConditions.ParameterCondition
 - CommandContexts
 - CommandExecutionContext
 - CommandHelp
 - CommandHelpFormatter
 - CommandIssuer
 - CommandManager
 - CommandOperationContext
 - CommandParameter
 - CommandPermission
 - CommandReplacements
 - ConditionContext
 - ConditionFailedException
 - Conditions
 - ConditionsProcessor
 - ContextResolver
 - Default
 - Dependency
 - Description
 - ExceptionHandler
 - Flags
 - ForwardingCommand
 - HelpCommand
 - HelpEntry
 - HelpSearchTags
 - InvalidCommandArgument
 - InvalidCommandContextException
 - IssuerAwareContextResolver
 - IssuerLocaleChangedCallback
 - IssuerOnlyContextResolver
 - Locales
 - MessageFormatter
 - MessageKeys
 - MessageType
 - Name
 - Optional
 - OptionalContextResolver
 - PreCommand
 - Private
 - RegisteredCommand
 - RootCommand
 - SenderAwareContextResolver
 - ShowCommandHelp
 - Single
 - Split
 - Subcommand
 - Syntax
 - UnknownHandler
 - UnresolvedDependencyException
 - UnstableAPI
 - Values