Deprecated API

Contents

• Interfaces
• Classes
• Methods
• Constructors

Deprecated Interfaces

Interface	Description
org.apache.commons.collections4.Closure	Use Consumer.
org.apache.commons.collections4.Factory	Use Supplier.
org.apache.commons.collections4.MultiMap	since 4.1, use MultiValuedMap instead
org.apache.commons.collections4.Predicate	Use Predicate.
org.apache.commons.collections4.Transformer	Use Function.

Deprecated Classes

Class	Description
org.apache.commons.collections4.ArrayStack	use ArrayDeque instead (available from Java 1.6)
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.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.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.