Stars
RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
Netty project - an event-driven asynchronous network application framework
光 HikariCP・A solid, high-performance, JDBC connection pool at last.
A high performance caching library for Java
Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running mat…
A programmer-oriented testing framework for Java —
Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.
Statistical Machine Intelligence & Learning Engine
The official AWS SDK for Java 1.x (In Maintenance Mode, End-of-Life on 12/31/2025). The AWS SDK for Java 2.x is available here: https://github.com/aws/aws-sdk-java-v2/
An uber-fast parallelized Java classpath scanner and module scanner.
Replicate your Key Value Store across your network, with consistency, persistance and performance.
A High Dynamic Range (HDR) Histogram
The Jdbi library provides convenient, idiomatic access to relational databases in Java and other JVM technologies such as Kotlin, Clojure or Scala.
fastutil extends the Java™ Collections Framework by providing type-specific maps, sets, lists and queues.
Bind a java thread to a given core
Lightweight threads for Java, with message passing, nio, http and scheduling support.
State of the art mutation testing system for the JVM
BitTorrent Java library with tracker and download client
A sampling JVM profiler without the safepoint sample bias
Simple Java image-scaling library implementing Chris Campbell's incremental scaling algorithm as well as Java2D's "best-practices" image-scaling techniques.
java deep learning algorithms and deep neural networks with gpu acceleration
Java Statistical Analysis Tool, a Java library for Machine Learning
Low-overhead, non-blocking I/O, external Process implementation for Java
Simple, lightweight and fast event bus tailored for Android