Design patterns implemented in Java

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Spring Framework

Ghidra is a software reverse engineering (SRE) framework

Netty project - an event-driven asynchronous network application framework

Open Source Identity and Access Management For Modern Applications and Services

Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

a fast, scalable, multi-language and extensible build system

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

The automation tower defense RTS

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

JDK main-line development https://openjdk.org/projects/jdk

Conductor is an event driven orchestration platform

Open-source IoT Platform - Device management, data collection, processing and visualization.

A server software reimplementation for a certain anime game.

A high performance caching library for Java

⚡ Workflow Automation Platform. Orchestrate & Schedule code in any language, run anywhere, 500+ plugins. Alternative to Zapier, Rundeck, Camunda, Airflow...

QuestDB is a high performance, open-source, time-series database

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

Quarkus: Supersonic Subatomic Java.

Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running mat…

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

Git Server with CI/CD, Kanban, and Packages. Seamless integration. Unparalleled experience.

Apache Doris is an easy-to-use, high performance and unified analytics database.

Very spicy additions to the Java programming language.

The Java gRPC implementation. HTTP/2 based RPC

The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies

The Metadata Platform for your Data and AI Stack

Open-Source Web UI for Apache Kafka Management

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