Netty project - an event-driven asynchronous network application framework

Open Source Identity and Access Management For Modern Applications and Services

Very spicy additions to the Java programming language.

OpenRefine is a free, open source power tool for working with messy data and improving it

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

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

Traccar GPS Tracking System

Runtime code generation for the Java virtual machine.

Open-Source Subscription Billing & Payments Platform

OrientDB is the most versatile DBMS supporting Graph, Document, Reactive, Full-Text and Geospatial models in one Multi-Model product. OrientDB can run distributed (Multi-Master), supports SQL, ACID…

The missing bridge between Java and native C++

The reliable, generic, fast and flexible logging framework for Java.

Compiles Java bytecode to JavaScript, WebAssembly and C

Cucumber for the JVM

Etherpad Open-Source Repository

Manage AWS EC2 SSH access with IAM

A compressed alternative to the Java BitSet class

A tool for embedding data URIs in CSS files.

Checked Exceptions-enabled Java 8+ functional interfaces + adapters

HTTP App. Server and JSON DB - Shared Parallel (Atomic) & Distributed

Flexible Regular Expression