Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

Free and Open Source, Distributed, RESTful Search Engine

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:

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

a fast, scalable, multi-language and extensible build system

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…

JDK main-line development https://openjdk.org/projects/jdk

High Performance Inter-Thread Messaging Library

Microservice Architecture with Spring Boot, Spring Cloud and Docker

Very spicy additions to the Java programming language.

Admin UI for administration of spring boot applications

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

Resilience4j is a fault tolerance library designed for Java8 and functional programming

Continuous Inspection

Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly co…

Distributed and fault-tolerant realtime computation: stream processing, continuous computation, distributed RPC, and more

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

📈 Capturing JVM- and application-level metrics. So you know what's going on.

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

A tool for mocking HTTP services

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.

Asynchronous Http and WebSocket Client library for Java

Drools is a rule engine, DMN engine and complex event processing (CEP) engine for Java.

Reformats Java source code to comply with Google Java Style.

Lightweight Java and Android library for integration with Ethereum clients

Distributed Graph Database

Spring Authorization Server

OpenGrok is a fast and usable source code search and cross reference engine, written in Java

MyBatis integration with Spring Boot