A Persistent Java Collections Library

Terminal-based progress bar for Java / JVM

fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues.

Immutable math library for Java that offers easy conversion between math types, fast trigonometric functions, vectors, matrices, complex numbers, quaternions, and operation chaining, with a focus o…

Java Template Engine

Scala incremental compiler library, used by sbt and other build tools

Modern Java decompiler aiming to be as accurate as possible, with an emphasis on output quality. Fork of the Fernflower decompiler.

A blazingly fast multi-language serialization framework powered by JIT and zero-copy.

Kotlin multiplatform I/O library

BitTorrent library and client with DHT, magnet links, encryption and more

Run Kotlin/JS libraries in Kotlin/JVM and Kotlin/Native programs

Kotlin plotting library.

Static code analysis for Kotlin

Benchmarking Java's native call APIs: JNI, JNA, JNR, BridJ and Project Panama

YAML for Java 8 and above. A user-friendly OOP library. Previously known as "Camel".

Vaadin platform 10+ is a Java web development platform based on Vaadin web components. If you don't know to which repository your bug report should be filed, use this and we'll move it to the right…

Native JVM WebAssembly runtime

Generate type-safe code from SQL

Java Virtual Machine