Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.
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An extensible multilanguage static code analyzer.
Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps can include as source & avoid adding a dependency. Written in Java, usable from Groovy, Kotlin, Scala, etc.
:ballot_box_with_check: [Cheatsheet] Tips and tricks for Android Development
The official AWS SDK for Java 1.x (In Maintenance Mode, End-of-Life on 12/31/2025). The AWS SDK for Java 2.x is available here: https://github.com/aws/aws-sdk-java-v2/
A tool to help eliminate NullPointerExceptions (NPEs) in your Java code with low build-time overhead
SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.
Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.
🗺️ Minecraft map editor and mod
Apache NetBeans
Automated driver management and other helper features for Selenium WebDriver in Java
The SpotBugs plugin for security audits of Java web applications and Android applications. (Also work with Kotlin, Groovy and Scala projects)
AnyChart Android Chart is an amazing data visualization library for easily creating interactive charts in Android apps. It runs on API 19+ (Android 4.4) and features dozens of built-in chart types.
Speedment is a Stream ORM Java Toolkit and Runtime
A library that checks for your apps' updates on Google Play, GitHub, Amazon, F-Droid or your own server. API 9+ required.
Material Design Search Bar for Android
Android fillable progress view working with SVG paths. This is a nice option too if you want to create an interesting branding logo for your app. Based on the iOS project: https://github.com/poolqf/FillableLoaders
Spoon is a metaprogramming library to analyze and transform Java source code. :spoon: is made with :heart:, :beers: and :sparkles:. It parses source files to build a well-designed AST with powerful analysis and transformation API.
Maven plugin for running and creating Docker images
Open-source framework for native apps from one Java codebase, with a custom-rendered UI you control across iOS, Android, desktop, web, and watches.
Free database schema discovery and comprehension tool
JVM Profiler Sending Metrics to Kafka, Console Output or Custom Reporter
Mixin is a trait/mixin and bytecode weaving framework for Java using ASM
MongoDB object-document mapper in Java based on https://github.com/mongodb/mongo-java-driver