The bit array data structure is implemented in Java as the BitSet class. Unfortunately, this fails to scale without compression. JavaEWAH is a word-aligned compressed variant of the Java bitset class. It uses a 64-bit run-length encoding (RLE) compression scheme. The goal of word-aligned compression is not to achieve the best compression, but rather to improve query processing time. Hence, we try to save CPU cycles, maybe at the expense of storage. However, the EWAH scheme we implemented is ...

Artifacts using JavaEWAH version 1.1.13 (12)
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Repository access and algorithms
Last Release on Jun 11, 2026
algebird-core
Last Release on Jul 10, 2023
Clojure wrapper for JGit
Last Release on Apr 24, 2024
Repository access and algorithms
Last Release on Dec 11, 2024
OWL ontology editing infrastructure used by the Protege desktop application.
Last Release on May 23, 2025
Repository access and algorithms
Last Release on Jul 21, 2025
Git integration for pitest
Last Release on May 29, 2026
This project contains the Java API for interacting with Nexus Repository Manager.
Last Release on Dec 1, 2025
Resources used in Galleon feature pack used to provision WildFly Core based servers
Last Release on Jun 17, 2026
Custom version of JGit Core with some improvements for autonomous usage (ignore global gitconfigs) and better error reporting
Last Release on Oct 31, 2025