fastutil extends the Java Collections Framework by providing type-specific maps, sets, lists, and queues with a small memory footprint and fast access and insertion; it provides also big (64-bit) arrays, sets and lists, sorting algorithms, fast, practical I/O classes for binary and text files, and facilities for memory mapping large files. Note that if you have both this jar and fastutil-core.jar in your dependencies, fastutil-core.jar should be excluded.
Artifacts using Fastutil (1,256)
43.EXist DB Core57 usages
org.exist-db » exist-core LGPL
eXist-db NoSQL Database Core
Last Release on Mar 6, 2026
49.Druid Server49 usages
io.druid » druid-server Apache
