#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

Free and Open Source, Distributed, RESTful Search Engine

All Algorithms implemented in Java

Spring Framework

Google core libraries for Java

RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

Getting Started with Spring Boot 3:

Netty project - an event-driven asynchronous network application framework

Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents

Apache Flink

Jenkins automation server

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

The official home of the Presto distributed SQL query engine for big data

Logstash - transport and process your logs, events, or other data

Vert.x is a tool-kit for building reactive applications on the JVM

Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running mat…

Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.

Microservice Architecture with Spring Boot, Spring Cloud and Docker

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 11 and above, brought to you by Google.

Flyway by Redgate • Database Migrations Made Easy.

Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence.

A simple expressive web framework for java. Spark has a kotlin DSL https://github.com/perwendel/spark-kotlin

An Application Framework for AI Engineering

A damn simple library for building production-ready RESTful web services.

Free and open log management

Tools for keeping your cloud operating in top form. Chaos Monkey is a resiliency tool that helps applications tolerate random instance failures.

OWASP dependency-check is a software composition analysis utility that detects publicly disclosed vulnerabilities in application dependencies.

GoCD - Continuous Delivery server main repository

Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.