grails.util
Classes 
AbstractBuildSettings
BuildSettings
BuildSettingsHolder
ClosureToMapPopulator
CosineSimilarity
DomainBuilder
DomainBuilder.DefaultGrailsChildPropertySetter
ExtendedProxy
GenerateUtils
GrailsConfig
GrailsNameUtils
GrailsUtil
GrailsWebUtil
JSonBuilder
Metadata
OpenRicoBuilder
PluginBuildSettings
Enums 
BuildScope
Environment