org.apache.commons.collections15
Interfaces 
Bag
BidiMap
BoundedCollection
BoundedMap
Buffer
Closure
Factory
IterableMap
KeyValue
MapIterator
MultiMap
OrderedBidiMap
OrderedIterator
OrderedMap
OrderedMapIterator
Predicate
ResettableIterator
ResettableListIterator
SortedBag
SortedBidiMap
Transformer
Unmodifiable
Classes 
ArrayStack
BagUtils
BeanMap
BeanMap.MyMapEntry
BufferUtils
ClosureUtils
CollectionUtils
ComparatorUtils
EnumerationUtils
ExtendedProperties
FactoryUtils
IteratorUtils
ListUtils
MapUtils
PredicateUtils
SetUtils
TransformerUtils
Exceptions 
BufferOverflowException
BufferUnderflowException
FunctorException