Design patterns implemented in Java

#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

All Algorithms implemented in Java

Termux - a terminal emulator application for Android OS extendible by variety of packages.

微信开发 Java SDK ，支持包括微信支付，开放平台，小程序，企业微信，视频号，公众号等的后端开发

Event Driven Orchestration & Scheduling Platform for Mission Critical Applications

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

Jenkins automation server

Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.

Quarkus: Supersonic Subatomic Java.

The ZAP by Checkmarx Core project

A Java 8+ Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

No clever tagline needed.

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

Apache ZooKeeper

Open-Source Web UI for Apache Kafka Management

Java JWT: JSON Web Token for Java and Android

Views and Drawable for displaying animated GIFs on Android

Apache Iceberg