Design patterns implemented in Java

Spring Framework

Termux - a terminal emulator application for Android OS extendible by variety of packages.

Free universal database tool and SQL client

Getting Started with Spring Boot 3:

Open Source Identity and Access Management For Modern Applications and Services

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

Jenkins automation server

FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.

QuestDB is a high performance, open-source, time-series database

Most popular Mocking framework for unit tests written in Java

Arduino IDE 1.x

Generate diagrams from textual description

Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

greenDAO is a light & fast ORM solution for Android that maps objects to SQLite databases.

Continuous Inspection

Flyway by Redgate • Database Migrations Made Easy.

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

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

OsmAnd

Main Liquibase Source

We are on codeberg.org now! https://codeberg.org/Freeyourgadget/Gadgetbridge - Gadgetbridge - A free and cloudless replacement for your gadget vendors' closed source Android applications. Supports …

OpenPDF is an open-source Java library for creating, editing, rendering, and encrypting PDF documents, as well as generating PDFs from HTML. It is licensed under the LGPL and MPL.

Apache NetBeans

A Swagger to AsciiDoc or Markdown converter to simplify the generation of an up-to-date RESTful API documentation by combining documentation that’s been hand-written with auto-generated API documen…

Get information about countries via a RESTful API

jOOλ - The Missing Parts in Java 8 jOOλ improves the JDK libraries in areas where the Expert Group's focus was elsewhere. It adds tuple support, function support, and a lot of additional functional…

FitNesse -- The Acceptance Test Wiki

Asciidoc Editor and Toolchain written with JavaFX 21 (Build PDF, Epub, Mobi and HTML books, documents and slides)

KeyStore Explorer is a free GUI replacement for the Java command-line utilities keytool and jarsigner.