Deprecated API

Contents

• Interfaces
• Classes
• Methods
• Constructors

Deprecated Interfaces

Interface	Description
org.apache.commons.collections4.Bag	Since 4.6.0, use MultiSet instead; see the migration notes above.
org.apache.commons.collections4.MultiMap	Since 4.1, use MultiValuedMap instead
org.apache.commons.collections4.SortedBag	Since 4.6.0, use SortedMultiSet instead; see the Bag Javadoc for migration notes.

Deprecated Classes

Class	Description
org.apache.commons.collections4.ArrayStack	Use ArrayDeque instead (available from Java 1.6)
org.apache.commons.collections4.bag.AbstractBagDecorator	Since 4.6.0, use AbstractMultiSetDecorator instead.
org.apache.commons.collections4.bag.AbstractMapBag	Since 4.6.0, use AbstractMapMultiSet instead.
org.apache.commons.collections4.bag.AbstractSortedBagDecorator	Since 4.6.0, use AbstractSortedMultiSetDecorator instead.
org.apache.commons.collections4.bag.CollectionBag	Since 4.6.0, no longer needed; a MultiSet already complies with the Collection contract.
org.apache.commons.collections4.bag.CollectionSortedBag	Since 4.6.0, no longer needed; a SortedMultiSet already complies with the Collection contract.
org.apache.commons.collections4.bag.HashBag	Since 4.6.0, use HashMultiSet instead.
org.apache.commons.collections4.bag.PredicatedBag	Since 4.6.0, use PredicatedMultiSet instead.
org.apache.commons.collections4.bag.PredicatedSortedBag	Since 4.6.0, use PredicatedSortedMultiSet instead.
org.apache.commons.collections4.bag.SynchronizedBag	Since 4.6.0, use SynchronizedMultiSet instead.
org.apache.commons.collections4.bag.SynchronizedSortedBag	Since 4.6.0, use SynchronizedSortedMultiSet instead.
org.apache.commons.collections4.bag.TransformedBag	Since 4.6.0, use TransformedMultiSet instead.
org.apache.commons.collections4.bag.TransformedSortedBag	Since 4.6.0, use TransformedSortedMultiSet instead.
org.apache.commons.collections4.bag.TreeBag	Since 4.6.0, use TreeMultiSet instead.
org.apache.commons.collections4.bag.UnmodifiableBag	Since 4.6.0, use UnmodifiableMultiSet instead.
org.apache.commons.collections4.bag.UnmodifiableSortedBag	Since 4.6.0, use UnmodifiableSortedMultiSet instead.
org.apache.commons.collections4.BagUtils	Since 4.6.0, use MultiSetUtils instead.
org.apache.commons.collections4.list.AbstractLinkedList	Use AbstractLinkedListJava21 instead
org.apache.commons.collections4.list.CursorableLinkedList	parent AbstractLinkedList is source incompatible with List methods added in Java 21
org.apache.commons.collections4.list.NodeCachingLinkedList	parent AbstractLinkedList is source incompatible with List methods added in Java 21
org.apache.commons.collections4.map.MultiValueMap	Since 4.1, use MultiValuedMap instead

Deprecated Methods

Method	Description
org.apache.commons.collections4.collection.PredicatedCollection.Builder.createPredicatedBag()	Since 4.6.0, use PredicatedCollection.Builder.createPredicatedMultiSet() instead.
org.apache.commons.collections4.collection.PredicatedCollection.Builder.createPredicatedBag(Bag<E>)	Since 4.6.0, use PredicatedCollection.Builder.createPredicatedMultiSet(MultiSet) instead.
org.apache.commons.collections4.CollectionUtils.cardinality(O, Iterable<? super O>)	Since 4.1, use IterableUtils.frequency(Iterable, Object) instead. Be aware that the order of parameters has changed.
org.apache.commons.collections4.CollectionUtils.countMatches(Iterable<C>, Predicate<? super C>)	Since 4.1, use IterableUtils.countMatches(Iterable, Predicate) instead.
org.apache.commons.collections4.CollectionUtils.exists(Iterable<C>, Predicate<? super C>)	Since 4.1, use IterableUtils.matchesAny(Iterable, Predicate) instead.
org.apache.commons.collections4.CollectionUtils.find(Iterable<T>, Predicate<? super T>)	Since 4.1, use IterableUtils.find(Iterable, Predicate) instead.
org.apache.commons.collections4.CollectionUtils.forAllButLastDo(Iterable<T>, C)	Since 4.1, use IterableUtils.forEachButLast(Iterable, Closure) instead.
org.apache.commons.collections4.CollectionUtils.forAllButLastDo(Iterator<T>, C)	Since 4.1, use IteratorUtils.forEachButLast(Iterator, Closure) instead.
org.apache.commons.collections4.CollectionUtils.forAllDo(Iterable<T>, C)	Since 4.1, use IterableUtils.forEach(Iterable, Closure) instead.
org.apache.commons.collections4.CollectionUtils.forAllDo(Iterator<T>, C)	Since 4.1, use IteratorUtils.forEach(Iterator, Closure) instead.
org.apache.commons.collections4.CollectionUtils.get(Iterable<T>, int)	Since 4.1, use IterableUtils.get(Iterable, int) instead.
org.apache.commons.collections4.CollectionUtils.get(Iterator<T>, int)	Since 4.1, use IteratorUtils.get(Iterator, int) instead.
org.apache.commons.collections4.CollectionUtils.matchesAll(Iterable<C>, Predicate<? super C>)	Since 4.1, use IterableUtils.matchesAll(Iterable, Predicate) instead
org.apache.commons.collections4.CollectionUtils.synchronizedCollection(Collection<C>)	Since 4.1, use Collections.synchronizedCollection(Collection) instead.
org.apache.commons.collections4.CollectionUtils.unmodifiableCollection(Collection<? extends C>)	Since 4.1, use Collections.unmodifiableCollection(Collection) instead.
org.apache.commons.collections4.iterators.UnmodifiableListIterator.umodifiableListIterator(ListIterator<? extends E>)	method name has typo in it. Use UnmodifiableListIterator.unmodifiableListIterator(ListIterator) instead.
org.apache.commons.collections4.MapUtils.multiValueMap(Map<K, ? super Collection<V>>)	Since 4.1, use MultiValuedMap instead
org.apache.commons.collections4.MapUtils.multiValueMap(Map<K, C>, Class<C>)	Since 4.1, use MultiValuedMap instead
org.apache.commons.collections4.MapUtils.multiValueMap(Map<K, C>, Factory<C>)	Since 4.1, use MultiValuedMap instead
org.apache.commons.collections4.MultiMapUtils.getValuesAsBag(MultiValuedMap<K, V>, K)	Since 4.6.0, use MultiMapUtils.getValuesAsMultiSet(MultiValuedMap, Object) instead.
org.apache.commons.collections4.TransformerUtils.switchTransformer(Predicate<? super I>, Transformer<? super I, ? extends O>, Transformer<? super I, ? extends O>)	as of 4.1, use TransformerUtils.ifTransformer(Predicate, Transformer, Transformer)

Deprecated Constructors

Constructor	Description
org.apache.commons.collections4.IterableUtils()	TODO Make private in 5.0.
org.apache.commons.collections4.trie.analyzer.StringKeyAnalyzer()	Use StringKeyAnalyzer.INSTANCE.