Apache Log4j 2 is a versatile, feature-rich, efficient logging API
Apache NetBeans
Application Performance Monitoring System
The Java agent for Apache SkyWalking
Helps Java developers to easily consume and process log files from AWS
Distributed tracing system to gather timing data
Simple Binary Encoding (SBE) - High Performance Message Codec
A production-grade java implementation of RAFT consensus algorithm
An extensible multilanguage static code analyzer
Java distributed tracing implementation compatible with Zipkin backend
The Standard Webhooks specification
Pure Java annotation, single class file, rapid development
Identity & Single Sign On for all earthlings and beyond
A library for debugging android databases and shared preferences
Extremely fast enterprise server framework, can be used in RPC
An authorization library that supports access control models
Cross-platform DICOM implementation
Arianne is an engine to develop multiplayer online games like Stendhal
Provides an enhanced InheritableThreadLocal
Nginx module for embedding Clojure or Java or Groovy programs
Support variant based Java program execution, adapted to support MDE.
Static site IDE is a Static Site Generators aka Static Site Editor
Greengrass Java SDK