groovy.util
Interfaces 
Factory
IFileNameFinder
ObjectGraphBuilder.ChildPropertySetter
ObjectGraphBuilder.ClassNameResolver
ObjectGraphBuilder.IdentifierResolver
ObjectGraphBuilder.NewInstanceResolver
ObjectGraphBuilder.ReferenceResolver
ObjectGraphBuilder.RelationNameResolver
ResourceConnector
Classes 
AbstractFactory
AllTestSuite
AntBuilder
BuilderSupport
CharsetToolkit
ClosureComparator
Eval
Expando
FactoryBuilderSupport
GroovyCollections
GroovyLog
GroovyMBean
GroovyScriptEngine
GroovyTestCase
GroovyTestSuite
IndentPrinter
MapEntry
Node
NodeBuilder
NodeList
NodePrinter
ObjectGraphBuilder
ObjectGraphBuilder.DefaultChildPropertySetter
ObjectGraphBuilder.DefaultClassNameResolver
ObjectGraphBuilder.DefaultIdentifierResolver
ObjectGraphBuilder.DefaultNewInstanceResolver
ObjectGraphBuilder.DefaultReferenceResolver
ObjectGraphBuilder.DefaultRelationNameResolver
ObservableMap
OrderBy
Proxy
ProxyGenerator
XmlNodePrinter
XmlParser
XmlSlurper
Exceptions 
ResourceException
ScriptException