A barebones WebSocket client and server implementation
Java implementation of JSON Web Token (JWT)
JSON implementation for Ruby
A reference implementation of a JSON package in Java
Java JWT: JSON Web Token for Java and Android
GraphQL Java implementation
AWS Encryption SDK
Free implementation of Play Services
A Bukkit(1.19/1.20) server implementation in modding environment
Barcode scanning library for Java, Android
Postgresql JDBC Driver
Android TV Client for Jellyfin
A Python 3 implementation built on GraalVM
Java wrapper for the popular chat & VOIP service
Apache Log4j 2 is a versatile, feature-rich, efficient logging API
Data visualization analysis tool
High-quality QR Code generator library in Java, TypeScript/JavaScript
A Java Virtual Machine for OpenJDK
Alibaba Dragonwell8 JDK
Simplified version of ZXing, optimized to scan codes to generate QR
Open source alternative to Auth0 / Firebase Auth, etc.
A fast Java JSON schema validator that supports draft V4, V6, V7, V201
Hibernate's core object/relational mapping functionality
An implementation of the DNS protocol in Java
Socket.IO server implemented on Java