org.codehaus.groovy.util
Interfaces 
AbstractConcurrentMap.Entry
AbstractConcurrentMapBase.Entry
ComplexKeyHashMap.EntryIterator
Finalizable
Reference
SingleKeyHashMap.Copier
Classes 
AbstractConcurrentDoubleKeyMap
AbstractConcurrentMap
AbstractConcurrentMap.Segment
AbstractConcurrentMapBase
AbstractConcurrentMapBase.Segment
ArrayIterator
ComplexKeyHashMap
ComplexKeyHashMap.Entry
DoubleKeyHashMap
DoubleKeyHashMap.Entry
FastArray
HashCodeHelper
LazyReference
ListHashMap
LockableObject
ManagedConcurrentMap
ManagedConcurrentMap.Entry
ManagedConcurrentMap.EntryWithValue
ManagedConcurrentMap.Segment
ManagedDoubleKeyMap
ManagedDoubleKeyMap.Entry
ManagedLinkedList
ManagedReference
ReferenceBundle
ReferenceManager
ReleaseInfo
SingleKeyHashMap
SingleKeyHashMap.Entry
StringUtil
TripleKeyHashMap
TripleKeyHashMap.Entry
Enums 
ReferenceType