SonarSource Static Analyzer for Java Code Quality and Security
Java Code Coverage Library
High-quality QR Code generator library in Java, TypeScript/JavaScript
Reformats Java source code to comply with Google Java Style
Java language binding for writing Appium Tests
Testcontainers is a Java library that supports JUnit tests
JNI based binding for Dear ImGui
Dex to Java decompiler
The official AWS X-Ray Auto Instrumentation Agent for Java
Active development of the Azure SDK for Java
Library to stream in rtmp and rtsp for Android. All code in Java
A tool for reverse engineering Android apk files
Desktop/Android/HTML5/iOS Java game development framework
Barcode scanning library for Java, Android
SoapUI is a free and open source cross-platform functional testing
A reverse engineering suite (decompiler, editor, debugger and more)
Apache NetBeans
Metaprogramming library to analyze and transform Java source code
A complete 3-D game development suite written in Java
Java interface to OpenCV, FFmpeg, and more
Apache Maven core
The IDE for competitive programming
Skript is a Bukkit plugin which allows server admins
A free and open development kit for the Sega Mega Drive
A tool for static analysis to look for bugs in Java code