Collections
21.Trove (core)127 usages
net.sf.trove4j » core LGPL
High performance collections for Java
Last Release on Aug 3, 2018
22.Shims26 usages
org.roaringbitmap » shims Apache
Roaring bitmaps are compressed bitmaps (also called bitsets) which tend to outperform conventional compressed bitmaps such as WAH or Concise.
Last Release on Sep 12, 2023
23.Disruptor25 usages
com.conversantmedia » disruptor Apache
Conversant Disruptor - very high throughput Java BlockingQueue
Last Release on Oct 18, 2022
Utility library for collections, comparators and iterator classes
Last Release on Aug 10, 2022
Relocated → io.github.astrapi69 »
silly-collection
25.Typonym Core3 usages
dev.soundness » typonym-core Apache
Collections raised to the type-level in Scala
Last Release on Feb 12, 2026
Immutable Collections
Last Release on Oct 3, 2023
27.Integers3 usages
com.almworks.integers » integers Apache
Efficient Java collections for primitive integer types
Last Release on Apr 16, 2025
28.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
29.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
