Gradle

Gradle Retrolambda Pluginevant/gradle-retrolambda

A Gradle plugin that enables Java 8 lambda expressions and method references in Java 6, 7, and Android projects.

armerialine/armeria

A reactive microservice framework built on Netty that supports gRPC, Thrift, Kotlin, Retrofit, Spring Boot, and Dropwizard.

Boosterdidi/booster

A lightweight, extensible quality optimization toolkit for Android applications, focusing on performance, stability, and package size reduction.

mapdbjankotek/MapDB

An embedded Java database engine providing concurrent collections backed by disk storage or off-heap memory.

micrometermicrometer-metrics/micrometer

A vendor-neutral metrics facade for Java applications, providing dimensional metrics instrumentation across popular monitoring backends.

aerosolveairbnb/aerosolve

A machine learning library designed for human interpretability, featuring debuggable models and a feature transform language.

djldeepjavalibrary/djl

An engine-agnostic deep learning framework for Java developers, providing a high-level API for model training and inference.

FXGLAlmasB/FXGL

A JavaFX-based game development framework for building 2D games and complex UI applications with a clean, high-level API.

Firebase UIfirebase/firebaseui-android

A library of pre-built Android UI components that connect to Firebase services like Auth, Database, Firestore, and Storage.

AndroidStaggeredGridetsy/AndroidStaggeredGrid

An Android staggered grid view library supporting multiple columns with rows of varying sizes.

JavaCPPbytedeco/javacpp

A Java library providing efficient, zero-overhead access to native C++ code using JNI and annotations.

JDADV8FromTheWorld/JDA

A Java library for building Discord bots using the real-time gateway and REST API with event-driven architecture.

JDADV8FromTheWorld/JDA

A Java wrapper for the Discord API, enabling developers to create scalable and feature-rich Discord bots.

Simplify Android deobfuscatorCalebFenton/simplify

A generic Android deobfuscator that uses virtual execution to simplify obfuscated code for human analysis.

Cardslibgabrielemariotti/cardslib

An Android library to build UI cards using the official Google CardView with extensive customization options.

android-cropjdamcd/android-crop

A deprecated Android library providing a simple image cropping Activity based on AOSP code.

Azkaban (.5k)azkaban/azkaban

Azkaban is a batch workflow job scheduler created at LinkedIn to manage Hadoop jobs.

Mocodreamhead/moco

A lightweight Java framework for easily creating HTTP, REST, and WebSocket stub servers for integration testing.

AboutLibrariesmikepenz/AboutLibraries

Automatically collects Gradle project dependencies and licenses, providing UI components for Android and Compose Multiplatform.

Fernflowerfesh0r/fernflower

An analytical decompiler that converts Java bytecode back into readable Java source code, used in IntelliJ IDEA.

JMonkeyEnginejMonkeyEngine/jmonkeyengine

A 3-D game engine for adventurous Java developers, offering a complete open-source suite for cross-platform game development.

java-trontronprotocol/java-tron

Java implementation of the TRON Protocol, a high-performance blockchain platform for decentralized applications.

apollo-androidapollographql/apollo-android

A strongly-typed, caching GraphQL client for the JVM, Android, and Kotlin multiplatform.

IDDD SamplesVaughnVernon/IDDD_Samples

Reference implementations of Bounded Contexts from Vaughn Vernon's 'Implementing Domain-Driven Design' book.

Spotbugsspotbugs/spotbugs

A static analysis tool for finding bugs in Java code, succeeding the FindBugs project.

RoaringBitmapRoaringBitmap/RoaringBitmap

A compressed bitmap data structure for Java that outperforms alternatives like WAH, EWAH, and Concise in speed and compression.

Apache Cordovaapache/cordova-android

Android platform library for building Cordova hybrid mobile apps with web technologies.

databuslinkedin/databus

A source-agnostic distributed change data capture system for reliably capturing and streaming primary data changes.

WorldEditEngineHub/WorldEdit

An in-game Minecraft map editor with selections, schematics, copy/paste, brushes, and scripting for creative building and server management.

Simple Binary Encodingreal-logic/simple-binary-encoding

A high-performance binary message codec for low-latency financial applications, with multi-language support.

DGS FrameworkNetflix/dgs-framework

A GraphQL server framework for Spring Boot with annotation-based programming and comprehensive tooling.

Agronareal-logic/Agrona

A Java library of high-performance data structures and utilities for low-latency applications.

Synthea Patient Generatorsynthetichealth/synthea

An open-source synthetic patient population simulator that generates realistic (but not real) patient data and health records in multiple formats.

TeaVMkonsoletyper/teavm

Compiles Java bytecode to JavaScript, WebAssembly, and C for running Java applications in web browsers and other environments.

KorGEkorlibs/korge

A modern multiplatform game engine for Kotlin, enabling game development for JVM, JS, WASM, iOS, and Desktop.

Gravitinoapache/gravitino

A high-performance, geo-distributed, and federated open data catalog for unified metadata management across diverse data and AI assets.