An open API service indexing awesome lists of open source software.

Java

Java was originally developed as an alternative to the C/C++ programming languages. It is now mainly used for building web, desktop, mobile, and embedded applications. Java is owned and licensed through Oracle, with free and open source implementations available from Oracle and other vendors.

https://github.com/a2ap/a2a4j

A2A4J is a comprehensive Java implementation of the Agent2Agent Protocol, including server, client, examples, and starters.

a2a a2a-client a2a-protocol a2a-server ai java llm mcp spring springboot

Last synced: 14 Jan 2026

https://github.com/mihaicostin/hibernate-l2-memcached

Hibernate second level cache implementation over memcached

hibernate java memcached second-level-cache

Last synced: 14 Jan 2026

https://github.com/selwynshen/nics-easy-rules

rules-engine, based on easy-rules

java rule-engine rules-engine spring yaml

Last synced: 14 Jan 2026

https://github.com/obydux/minecraft-startup-flags

Modern way of optimizing garbage collection in Minecraft: Java Edition

flags gc-tuning generational-zgc java java-21 jvm minecraft optimization tuning zgc zgenerational

Last synced: 15 Aug 2025

https://github.com/manticore-projects/jsqlformatter

Java SQL Formatter, Beautifier and Pretty Printer

beautify formatter java mssql mysql oracle postgres pretty-print sql

Last synced: 26 Aug 2025

https://github.com/sing-group/gc4s

GUI Components for (Java) Swing

gui gui-components java library swing

Last synced: 03 Jul 2025

https://github.com/jp1016/superbadge

🚀 📛 SuperBadge Android Library 🔥

android android-library badge chip custom-view java library rating

Last synced: 07 May 2025

https://github.com/zaahidali/atm-management-system

A semester project completed in Java Programming language

atm atm-management-system java java-programming java-project semester-project

Last synced: 21 Apr 2025

https://github.com/wx-chevalier/algorithm-examples

Code Snippets of DataStructure & Algorithm & LeetCode Implementations/Solutions for Several Programming Language: Java, JavaScript, Go, Python, Rust, etc. :dizzy: 多语言版本的数据结构与算法实现分析

alogrithms datastructures golang java tree wx-code wx-snippets

Last synced: 27 Jul 2025

https://github.com/binghe001/binghe001.github.io

📚 本静态博客是作者冰河多年从事多年互联网大厂开发、架构的学习历程技术汇总,旨在为大家提供一个清晰详细的学习教程,侧重点更倾向编写Java核心内容、底层原理、架构知识、渗透技术。如果本仓库能为您提供帮助,请给予支持(关注、点赞、分享)!

aop asm bigdata bytecode ddd dubbo hacker ioc java javafx javassist mybatis mysql spring springboot springcloud springcloudalibaba

Last synced: 09 Aug 2025

https://github.com/apache/qpid-proton-j

Mirror of Apache Qpid Proton-J

amqp amqp10 apache java library messaging qpid

Last synced: 28 Jul 2025

https://github.com/knopflerfish/knopflerfish.org

Knopflerfish OSGi Service Platform. OSGi run-time container and SDK source code repo

java osgi osgi-services

Last synced: 14 Jan 2026

https://github.com/whaleal/mars

Mars - Java Object Document Mapper for MongoDB (MongoDB ODM Framework )

codec java javaorm mars mongodb odm orm orm-framework springboot whaleal

Last synced: 02 Jul 2025

https://github.com/benelog/one-ftpserver

Simple, portable FTP server for one user by one executable jar file.

ftp java

Last synced: 04 Sep 2025

https://github.com/yegor256/hangman

Hangman (the game) written in a very unelegant procedural style, which you can improve in order to test your skills

game hangman-game java oop

Last synced: 07 Apr 2025

https://github.com/moderocky/mirror

A smart, fast alternative to Java's reflection API.

bytecode bytecode-manipulation java reflection reflection-library

Last synced: 23 Mar 2025

https://github.com/igniterealtime/whack

Open Source XMPP component library for XMPP components

jabber java xmpp-components

Last synced: 08 Apr 2025

https://github.com/redistimeseries/jredistimeseries

Java Client for RedisTimeSeries

java java-client redis timeseries

Last synced: 10 Mar 2026

https://github.com/ivangfr/springboot-kong-keycloak

Goal: create a Spring Boot app called book-service accessible only through the Kong API gateway. In Kong, the kong-oidc plugin will be installed, enabling communication between Kong and Keycloak. This setup ensures that when Kong receives a request for book-service, it validates the request in conjunction with Keycloak to ensure its authenticity.

docker graalvm java keycloak kong kong-oidc mongodb mysql native postgresql spring-boot spring-data-mongodb spring-web-mvc

Last synced: 10 Apr 2025

https://github.com/zuazo/node-jmx

Node.js library to connect to Java applications through JMX.

java jmx jvm node

Last synced: 30 Apr 2025

https://github.com/mechero/completable-future-example

Example project comparing Java's CompletableFuture and Future implementations

completablefuture future java thepracticaldeveloper

Last synced: 30 Apr 2025

https://github.com/vy/rotating-fos

Java library providing rotating/rolling FileOutputStream.

fileoutputstream java

Last synced: 12 Apr 2025

https://github.com/mukulkolpe/social_media_app

A social media app where users will be able to communicate in public channels as well as personal messages, share stories, share media.

andriod chat-application firebase firebase-auth firebase-database firebase-realtime-database java social-media social-media-app xml

Last synced: 12 Apr 2025

https://github.com/abdelrahmanbayoumi/hotelfx

Desktop Application for managing the reservations and Guest Check-in or Check-Out built with JavaFX and SQL Database with Hibernate ORM.

database desktop-application fxml hibernate hotel hotel-booking hotel-management-system java javafx orm-framework sql

Last synced: 04 Apr 2025

https://github.com/jchambers/id-obfuscator

A Java library for reversibly obfuscating numerical identifiers (e.g. 1234 ↔ 4TQCNTL)

java obfuscation security

Last synced: 26 Mar 2025

https://github.com/mmtk/mmtk-openjdk

OpenJDK binding for MMTk

java mmtk openjdk vm

Last synced: 10 Feb 2026

https://github.com/thomasnield/dirtyfx

Dirty state-tracking properties and collections for JavaFX

java javafx kotlin tornadofx

Last synced: 03 Mar 2026

https://github.com/amanmehara/programming

A polyglot collection of algorithms and code snippets.

c c-plus-plus c-sharp f-sharp groovy hacktoberfest java javascript php python scala sql

Last synced: 15 Feb 2026

https://github.com/zapodot/embedded-ldap-junit

A JUnit rule for running an embedded LDAP server in your JUnit test

java junit-rule ldap ldap-server testing unbound

Last synced: 23 Oct 2025

https://github.com/professorjosedeassis/javaee

Java WEB Level 1 (Servlet - jsp - JDBC)

crud itextpdf java javaee jdbc jdbc-driver jsp mysql servlet

Last synced: 28 Feb 2026

https://github.com/robeio/robe

A brand new robe for dropwizard

conversion dropwizard hibernate java quartz robe

Last synced: 07 Mar 2026

https://github.com/andriawan/AndKasir

AndKasir merupakan aplikasi open source yang dibangun dengan bahasa pemrograman Java untuk kebutuhan retail perusahaan menengah dalam mengatur aktifitas barang masuk dan keluar. konsultasi isu, instalasi dan penambahan fitur silahkan kirim email ke irwan@andriawan.com

java kasir point-of-sale

Last synced: 13 Apr 2025

https://github.com/gcoronelc/peci-java-mar-2015

Repositorio del curso de Java de Mar 2015

java jdbc mybatis mysql netbeans oracle spring sql

Last synced: 06 Apr 2025

https://github.com/commercetools/commercetools-sync-java

Java library for importing and syncing (taking care of changes) data into one or more commercetools projects from external data files or from another commercetools project.

commercetools commercetools-importer commercetools-sdk commercetools-sync ecommerce hacktoberfest import-and-export java sdk sync

Last synced: 06 Apr 2025

https://github.com/valmobile/realisticsurvival

Realistic Survival - A unique Spigot/Paper plugin inspired by RLCraft that aims to enhance pure survival, adventuring and RPG, and immersion of vanilla Minecraft.

bukkit discord java minecraft modded modded-minecraft modpack mods open-source paper papermc plugin spigot spigotmc survival

Last synced: 14 Mar 2026

https://github.com/akhuntsaria/spring-boot-api-gateway

API authentication gateway written using Spring Boot, Zuul, Eureka and JWT.

eureka java jwt microservices spring spring-boot zuul zuul-proxy

Last synced: 17 Jan 2026

https://github.com/gigaherz/toolbelt

A simple mod that adds a belt for carrying tools

forge-mod java java-8 minecraft minecraft-forge-mod minecraft-mod

Last synced: 11 Oct 2025

https://github.com/mariazevedo88/artigo-solid-medium

Implementações dos exemplos demonstrados no artigo: https://bit.ly/2o97vY1

artigo exemplos-demonstrados java java-8 medium medium-article solid solid-principles

Last synced: 19 Apr 2025

https://github.com/albfernandez/itext2

Java Library to create and manipulate PDF on the fly

java

Last synced: 14 Jan 2026

https://github.com/pubref/rules_maven

Transitive maven dependencies with Bazel.

bazel gradle java maven transitive-closure

Last synced: 04 Sep 2025

https://github.com/ladingwu/compiler_java_python

简易编译器实现,最终翻译成伪汇编代码

compiler java

Last synced: 27 Jul 2025

https://github.com/swiesend/secret-service

A Java library for storing secrets under linux in the gnome-keyring over D-Bus. Like libsecret, but for Java.

dbus dbus-java gnome gnome-keyring java java-library jvm keyring libsecret linux password password-store password-vault scala secret-service secrets storing-secrets

Last synced: 04 Oct 2025

https://github.com/houarizegai/java-pocs

Codes and samples were written 💻 to demonstrate the usage of Java with various technologies.

apis crm-rest hibernate java java8 javaee maven rest rest-crud spring spring-boot-crud spring-mvc spring-rest

Last synced: 22 Aug 2025

https://github.com/gurubalan-git/ccc

Code. Compete. Collaborate. An initiative taken to code and help people code from A-Z aimed majorly at placements, by collaborators from around the globe.

c campus-placements coding-challenge coding-interviews coding-standards community-project competitive-coding competitive-programming cpp java open-source placements python

Last synced: 25 Jul 2025

https://github.com/brunobonacci/1config

A command line tool and a library to manage application secrets and configuration safely and effectively.

aws aws-lambda clojure configuration configuration-management java security

Last synced: 17 Mar 2025

https://github.com/kyoripowered/indra

A set of Gradle plugins to apply common organization build settings.

gradle-plugin hacktoberfest java kotlin

Last synced: 06 May 2025

https://github.com/ivangfr/spring-data-jpa-r2dbc-mysql-stream-million-records

In this project, we will implement two Spring Boot Java Web application called, streamer-data-jpa and streamer-data-r2dbc. They both will fetch 1 million of customer's data from MySQL and stream them to Kafka. The main goal is to compare the application's performance and resource utilization.

cadvisor docker java jconsole jib kafdrop kafka mysql spring-boot spring-cloud-stream spring-data-jpa spring-data-r2dbc spring-web-mvc spring-webflux

Last synced: 10 Apr 2025

https://github.com/materna-se/declab

📊 Web-based decision model laboratory powered by jDEC and Vue.js

decision-management decision-model dmn docker java javascript vue

Last synced: 09 Sep 2025

https://github.com/idouble/iot-arduino-game-controller-java

🎮 A Game controller realized with an Arduino, I modified the Arduino bootloader to program with Java ☕️

analog arduino arduino-boards arduino-game arduino-library arduino-sketch arduino-uno bootloader cheatsheet controller digital game-controller internet-of-things iot java keyboard mouse

Last synced: 08 Mar 2026

https://github.com/reime005/react-native-secure-element

The most secure way to encrypt and decrypt personal data on a mobile device. Automatically E2E tested and deployed via Github Actions CI/CD.

android hacktoberfest ios java keychain keystore objc react react-native security typescript

Last synced: 06 Apr 2025

https://github.com/kimkevin/HangulParser

[Java&Android] HangulParser is to parse Hangul to Jaso(basic consonant and vowel) by using Unicode

android hangul java unicode vowel

Last synced: 11 May 2025

https://github.com/bamless/interpreter

A simple intepreter written in java.

c compiler interpreter java

Last synced: 07 May 2025

https://github.com/chargebee/chargebee-java

Java library for the Chargebee API.

chargebee java

Last synced: 15 Jun 2026

https://github.com/mnestorov/regex-patterns

This repository contains regular expression (regex) patterns for validating phone numbers postal codes, VAT numbers, dates, currency, credit/debit cards etc. for European countries (but not only).

csharp csharp-regex european java java-regex javascript javascript-regex js-regex php php-regex python python-regex regex regex-match regex-pattern regex-patterns regex-validator ruby

Last synced: 12 Jul 2025

https://github.com/adambien/airails

AI and LLM conventions for modern Java 25 CLI apps, MicroProfile servers, serverless applications, Java AWS CDK IaC, and dependency-free static web development.

agents ai bce-design java llm skills web webstandards

Last synced: 14 Jul 2026

https://github.com/orienteerbap/wicket-orientdb

Everything you need to work with Apache Wicket and OrientDB

java orientdb orienteer wicket

Last synced: 18 Dec 2025

https://github.com/hoangsonww/the-stickynotes-app

📌 Welcome to The StickyNotes App, your new digital space for quick notes, brainstorming ideas, and keeping track of tasks. There are both web app and mobile versions - the latter is under review and will be published soon!

cordova cql css html java javascript kotlin machine-learning note note-taking notebook notes notes-app notes-tool pytorch react sql sticky-notes swift

Last synced: 01 Jul 2025

https://github.com/orienteerbap/vuecket

Power of Vue.JS married with magic of Apache Wicket

java vue vuejs web-framework webfr wicket

Last synced: 05 Oct 2025

https://github.com/gameofdimension/java-bert-predict

turn bert pretrain checkpoint into saved model for a feature extracting demo in java

bert feature-extraction google-bert java tensorflow

Last synced: 15 Oct 2025

https://github.com/kojofosu/twitterapikit

Twitter's API v2 Objectified. This will save you time from creating data objects to access twitter's API v2. This library is supported on Gradle, Maven, Java, Kotlin, and Android projects.

android api gradle java kotlin maven twitter twitterapi

Last synced: 22 Mar 2025

https://github.com/seunmatt/morsecodetranslator

This is a desktop application that translates English text to Morse code and vice-versa

gui-desktop jar java morse translator tutorial

Last synced: 15 Apr 2025

https://github.com/xxdark/stringscrambler

Hide strings in memory (PoC)

hide java memory string

Last synced: 25 Jun 2025

https://github.com/CrazyLeoJay/nginx-gui

Nginx GUI Manager

java springboot2

Last synced: 04 May 2025

https://github.com/ugioni/selenium-webdriver-java

Cucumber, Selenium WebDriver, Junit, Java and Maven.

e2e java selenium selenium-webdriver webdriver

Last synced: 02 May 2025

https://github.com/bspfsystems/yamlconfiguration

Implementation of SnakeYAML to be easy to use with files.

java

Last synced: 21 Jun 2025

https://github.com/caveofprogramming/spring-framework-course

Source code for the Cave of Programming Spring Framework tutorial

java spring springframework springmvc

Last synced: 29 Oct 2025

https://github.com/kojofosu/TwitterApiKit

Twitter's API v2 Objectified. This will save you time from creating data objects to access twitter's API v2. This library is supported on Gradle, Maven, Java, Kotlin, and Android projects.

android api gradle java kotlin maven twitter twitterapi

Last synced: 08 May 2025

https://github.com/gejun123456/bootstrap-java-blog

A blog base on springboot+jquery+bootstrap+lucene+mybatis

blog java lucene springboot

Last synced: 17 Mar 2025

https://github.com/cicsdev/cics-banking-sample-application-cbsa

CICS® banking sample application

java maven-pom spring-boot

Last synced: 05 Mar 2026

https://github.com/depromeet/14th-team5-be

디프만 14기 개발하다가 5잉~ 금지 SERVER 🖥️

backend java jpa mvc springboot

Last synced: 04 Mar 2026

https://github.com/TAKETODAY/today-web

😐 A Java library for building web applications

framework high-performance java java-web lightweight servlet springmvc

Last synced: 12 May 2025

https://github.com/hexensemble/gb-usb-64m-cart-mac

macOS app for the “GB USB Smart Card 64M” Gameboy cartridge. 💾

cartridges gameboy java macosx

Last synced: 19 Apr 2025

https://github.com/neo4j/neo4j-java-driver-spring-boot-starter

Automatic configuration of Neo4j's Java Driver for Spring Boot applications

bolt driver java neo4j neo4j-driver spring-boot spring-boot-starter

Last synced: 30 Sep 2025

https://github.com/andy-goryachev/fxeditor

JavaFX rich text editor able to handle billions of lines (WORK IN PROGRESS)

handle-billions java javafx javafx-components javafx-desktop-apps javafx-gui

Last synced: 10 Apr 2025

https://github.com/tangorabox/componentinspector

Java Desktop (JavaFX and Swing) Component Inspector on mouse over

component component-inspector desktop inspector java javafx node swing

Last synced: 10 Apr 2025

https://github.com/alexprut/design-patterns-java

📗 Classic OOP Design Patterns from GoF, implemented in Java.

design-patterns gof java oop

Last synced: 30 Apr 2025