- ArtifactCoordinates
- DefaultGemManager
- DefaultGemPackager
- DefaultMavenArtifactConverter
- DefaultMavenArtifactConverter.MavenDependency
- DefaultRailsManager
- Gem
- GemArtifact
- GemDependency
- GemException
- GemFileEntry
- GemManager
- GemPackager
- GemRequirement
- GemsConfig
- GemScriptFactory
- GemScriptingContainer
- GemsInstaller
- GemspecConverter
- GemSpecification
- GemSpecificationIO
- GemVersion
- GwtOptions
- JRubyVersion
- Logger
- MappingConstructor
- MappingRepresenter
- Maven2GemVersionConverter
- MavenArtifact
- MavenArtifactConverter
- NoopLogger
- RailsException
- RailsManager
- RailsManager.ORM
- RailsService
- RailsState
- Script
- ScriptException
- ScriptFactory
- ScriptUtils
- SystemLogger
- YamlGemSpecificationIO