Google core libraries for Java

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

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…

A Java serialization/deserialization library to convert Java Objects into JSON and back

FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

A collection of algorithms and data structures

High Performance Inter-Thread Messaging Library

A fast dependency injector for Android and Java.

Quarkus: Supersonic Subatomic Java.

Vert.x is a tool-kit for building reactive applications on the JVM

🏗 Build container images for your Java applications.

The Java gRPC implementation. HTTP/2 based RPC

A Java API for generating .java source files.

Resilience4j is a fault tolerance library designed for Java8 and functional programming

A collection of source code generators for Java.

A simple expressive web framework for java. Spark has a kotlin DSL https://github.com/perwendel/spark-kotlin

Java Native Access

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

📈 Capturing JVM- and application-level metrics. So you know what's going on.

OWASP dependency-check is a software composition analysis utility that detects publicly disclosed vulnerabilities in application dependencies.

jOOQ is the best way to write SQL in Java

Micronaut Application Framework

configuration library for JVM languages using HOCON files

GraphQL Java implementation

vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.

Java 1-25 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.

Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps …

Non-Blocking Reactive Foundation for the JVM