Free implementation of Play Services
Programmer-friendly testing framework for Java and the JVM
A tool for reverse engineering Android apk files
Java MQTT lightweight broker
The OWASP ZAP core project
Metaprogramming library to analyze and transform Java source code
Google maps for block game
Kafka Web UI
An extensible media player for Android
Next-gen container development platform, workspace server & cloud IDE
A decentralized bitcoin exchange network
An XMPP server licensed under the Open Source Apache License
signal-cli provides a commandline, dbus and JSON-RPC interface
Main Liquibase Source
Apache Log4j 2 is a versatile, feature-rich, efficient logging API
A J2ME emulator for Android
A Java Virtual Machine for OpenJDK
Hibernate's core object/relational mapping functionality
A JavaFX library containing tiles that can be used for dashboards
Multi-platform transparent client-side encryption for your cloud files
Additional plug-ins and extensions for Java's ImageIO
Simplified version of ZXing, optimized to scan codes to generate QR
Eclipse Jetty - Web Container & Clients - supports HTTP/2, HTTP
A tool for static analysis to look for bugs in Java code
HTTP proxy server,support HTTPS & websocket