Spring Boot

Free and Open Source, Distributed, RESTful Search Engine

Free universal database tool and SQL client

Netty project - an event-driven asynchronous network application framework

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…

Zipkin is a distributed tracing system

Apache Pulsar - distributed pub-sub messaging system

Apache Druid: a high performance real-time analytics database.

Graphs for Everyone

Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services

Source for the TechEmpower Framework Benchmarks project

Examples and server integrations for generating the Swagger API Specification, which enables easy access to your REST API

Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.

A Java to iOS Objective-C translation tool and runtime.

A scalable, distributed Time Series Database.

Fibers, Channels and Actors for the JVM

An application observability facade for the most popular observability tools. Think SLF4J, but for observability.

Ant Media Server is a live streaming engine software that provides adaptive, ultra low latency streaming by using WebRTC technology with ~0.5 seconds latency. Ant Media Server is auto-scalable and …

XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.

Graphical Java application for managing BibTeX and biblatex (.bib) databases

SpotBugs is FindBugs' successor. A tool for static analysis to look for bugs in Java code.

Red5 Server core

Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.

Rest.li is a REST+JSON framework for building robust, scalable service architectures using dynamic discovery and simple asynchronous APIs.

Core part of Jackson that defines Streaming API as well as basic shared abstractions

An open source multi-modal trip planner

A new data structure for accurate on-line accumulation of rank-based statistics such as quantiles and trimmed means

📡 Lightweight GPS Logging Application For Android.

This is a small extension to Google's Guava library to allow for the creation of configurable retrying strategies for an arbitrary function call, such as something that talks to a remote service wi…