Scouter is open source APM (Application Performance Management) tool
tinylog is a lightweight logging framework for Java, Kotlin, Scala
Alpakka is a Reactive Enterprise Integration library for Java
Apache Lucene open-source search software
Eclipse Tyrus is the open source JSR 356 - Java API for WebSocket
Gradle/Maven plugin to package Java applications as native Windows
Generate Java types from JSON or JSON Schema for data-binding
A scalable web crawler framework for Java
A Distributed RESTful Search Engine
An SMS-forwarding Robot Running on Your Android Device
Blazingly fast Android Launcher
Apache HertzBeat(incubating) is a real-time monitoring system
Rakudo – Raku on MoarVM, JVM, and JS
An agent component for the Java system
Log analyser / visualiser for Java HotSpot JIT compiler
Traccar GPS Tracking System
Metadata/data identification Java library
Helps Java developers to easily consume and process log files from AWS
Core part of Jackson that defines Streaming API
Internet Archive's open-source, web-scale, web crawler project
High Performance data structures and utility methods for Java
Lightweight Java and Android library for integration with Ethereum
Server supporting the Signal Private Messenger applications on Android
I2P is an anonymizing network to securely communicate
Light-weight workflow and business process management pltaform