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