Collections
The Apache Commons Collections package contains types that extend and augment the Java Collections Framework.
Last Release on Apr 19, 2025
MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap memory. It is a fast, scalable and easy to use embedded Java database.
Last Release on Jan 10, 2024
Types that extend and augment the Java Collections Framework.
Last Release on Nov 12, 2015
Relocated → org.apache.commons »
commons-collections4
4.GNU Trove877 usages
net.sf.trove4j » trove4j LGPL
The Trove library provides high speed regular and primitive
collections for Java.
Last Release on Dec 4, 2014
Relocated → net.sf.trove4j »
core
5.ConcurrentLinkedHashMap281 usages
com.googlecode.concurrentlinkedhashmap » concurrentlinkedhashmap-lru Apache
A high performance version of java.util.LinkedHashMap for use as a software cache.
Last Release on Jan 28, 2015
Google Collections Library is a suite of new collections and collection-related goodness for Java 5.0
Last Release on Dec 30, 2009
Relocated → com.google.guava »
guava
Larvalabs Collections
Last Release on Feb 12, 2007
This is Boundary's fork of Cliff Click's high scale lib. We will be maintaining this fork with bug fixes, improvements and versioned builds pushed to maven central.
Last Release on May 13, 2014
Google Collections Library is a suite of new collections and collection-related goodness for Java 5.0
Last Release on Jun 5, 2008
Relocated → com.google.collections »
google-collections
Persistent (immutable) collection library for Java
Last Release on Apr 10, 2014
