Stars
RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.
Git Server with CI/CD, Kanban, and Packages. Seamless integration. Unparalleled experience.
Very spicy additions to the Java programming language.
OpenRefine is a free, open source power tool for working with messy data and improving it
Resilience4j is a fault tolerance library designed for Java8 and functional programming
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.
1️⃣🐝🏎️ The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java
An annotation processor for generating type-safe bean mappers
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 …
OpenPDF is an open-source Java library for creating, editing, rendering, and encrypting PDF documents, as well as generating PDFs from HTML. It is licensed under the LGPL and MPL.
requery - modern SQL based query & persistence for Java / Kotlin / Android
Database Subsetting and Relational Data Browsing Tool.
An uber-fast parallelized Java classpath scanner and module scanner.
Java regular expressions made easy.
JeroMQ is a pure Java implementation of the ZeroMQ messaging library, offering high-performance asynchronous messaging for distributed or concurrent applications.
TwelveMonkeys ImageIO: Additional plug-ins and extensions for Java's ImageIO
An extensible Java library for HTTP request and response logging
YAS: Yet Another Shop, a sample microservices project in Java
The modular web framework for Java and Kotlin
JVector: the most advanced embedded vector search engine
Rapidoid - Extremely Fast, Simple and Powerful Java Web Framework and HTTP Server!
Logic-less and semantic Mustache templates with Java
An advanced, but easy to use, platform for writing functional applications in Java 8.