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java21

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Here are 1,279 public repositories matching this topic...

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jacoco / jacoco

Star 4.6k

🔬 Java Code Coverage Library

kotlin java groovy coverage bytecode instrumentation java8 java-agent jacoco java-virtual-machine java5 java11 java17 java21 java25 java26
  • Updated Nov 12, 2026
  • Java

ccmjga / mjga-scaffold

Star 690

🔥 一个与 IntelliJ IDEA 配套的 Java 脚手架,你的专属生产力工具。

java spring-boot gradle pmd spring-security jooq spring-cache spotless testcontainer java-docker java17 jimmer java21 java-scaffold
  • Updated Oct 25, 2026

feltex / desafio-itau-backend

Star 466

Desafio de vaga de emprego para o banco Itaú

java spring spring-boot maven itau desafio desafios-resolvidos java21 desafio-feltex
  • Updated Apr 22, 2024
  • Java

eazybytes / java

Star 313

Java Programming: A Comprehensive Bootcamp from Zero to Hero

java functional-programming multithreading java-8 lambda-expressions streams-api collections-framework java21
  • Updated Oct 9, 2025
  • Java

beehive-lab / jitllm

Star 295

Java Inference Tornado toolkit: High performance LLM inference & serving for the JVM on GPUs

java gpu nvidia compilers granite mistral accelerators tornadovm llm java21 gguf mistral-7b llama3 phi-3 phi-3-mini ibm-granite qwen2-5 deepseek-r1 qwen3 qwen3-8
  • Updated Nov 12, 2026
  • Java

RawSanj / spring-redis-websocket

Star 199

Multi-instance Reactive WebSocket messaging Chat App demo using Spring Boot 3.x, Java 21 and Redis Pub/Sub

heroku docker kubernetes redis reactive spring-boot netty websocket amd64 traefik spring-data-redis arm64 graalvm testcontainers spring-webflux redis-pubsub reactive-web-sockets graalvm-native-image spring-native java21
  • Updated Dec 7, 2025
  • Java

waylau / modern-java-demos

Star 133

Modern Java: From Java 8 to Java 27. 现代Java案例大全/《Java核心编程》源码

java java8 java9 java10 java11 java12 java13 java14 java15 java16 java17 java18 java21 java22 java23 java24 java25 java26 java27
  • Updated Sep 17, 2026
tenio

congcoi123 / tenio

Star 130

TenIO is an open-source project for making online games that includes a java NIO (Non-blocking I/O) based server specifically designed for multiplayer games and simple existing game clients for rapid development: Libgdx (Java), Cocos2d-x (C++), Unity (C#), Phaserjs (Javascript).

java microservices framework unity multiplayer netty libgdx architecture mmo mmorpg jetty game-server gameserver cocos2d-x phaserjs java-nio java21
  • Updated Aug 13, 2026
  • Java

agitrubard / java-spring-best-practices

Sponsor
Star 111

A repository dedicated to showcasing best practices in Java and Spring through concise code snippets.

java open-source spring spring-boot maven best-practices dependency-injection clean-code code-practice code-snippets strategy-design-pattern explanations factory-design-pattern java21
  • Updated Jan 10, 2026
  • Java

Rapter1990 / springbootmicroserviceswithsecurity

Sponsor
Star 96

Spring Boot Microservices with JWT (Eureka Server, API Gateway, Auth Service, User Service and Product Service, JUnit and Integration Tests, Docker, Github Actions)

mysql java docker dockerfile jwt microservices spring-boot authentication maven docker-compose spring-cloud junit authorization spring-security postman integration-tests github-actions test-container java21
  • Updated Jul 21, 2024
  • Java

ZahidFKhan / Streams-API-Practices

Star 90

🐛 Streams API Practices

java lambda functional-programming java-8 interview-questions interview-test interview-preparation streamapi java8-stream java8-stream-collector java11 java8-lambda-expression java12 java14 java15 java16 java17 java21 java23 java24
  • Updated Nov 11, 2026
  • Java

yuyuanweb / ai-gzh-manager

Star 84

编程导航 2025 年 AI 开发实战新项目,基于 Spring Boot 3 + Java 21 + WxJava + Spring AI 的智能公众号管理系统,整合 ​​WxJava​​ 与 ​​Spring AI​​,实现多公众号的统一管理、​​AI 智能回复和素材管理​​。完整的后端 + React 前端全栈项目,覆盖公众号服务器配置、公众号 AI 自动回复、公众号素材管理、公众号菜单栏配置、本地开发调试微信公众号接口等功能。帮助你快速掌握公众号相关功能开发,让自己的公众号更加智能。

react java ai frontend backend springboot springmvc wxjava java21 spring-ai deepseek
  • Updated Jun 11, 2025
  • TypeScript

hantsy / spring6-sandbox

Star 82

Spring 6 and Spring Boot 3 playground

kotlin docker redis elasticsearch mongo cassandra spring neo4j jdbc jpa couchbase jersey testcontainers r2dbc virtual-thread java17 spring-boot-3 spring-6 jakartaee10 java21
  • Updated Jul 30, 2026
  • Java

LQF-dev / Zero-code

Star 80

Zero Code Studio 是一个工程化 AI 代码生成平台,基于 Spring Boot、LangChain4j、LangGraph4j,支持工具调用、Workflow 编排、任务计划规划、三层上下文压缩、SSE 过程可视化、定点修改与一键本地部署。

mysql redis workflow todo cache sse rate-limit code-generation redisson vue3 ai-agent spring-boot-3 llm java21 langchain4j langgraph4j context-compaction deepseek-v4-pro
  • Updated May 9, 2026
  • Java

feltex / desafio-uol

Star 62

Desafio de vaga de emprego Full stack para UOL Host feito usando Java e Spring Boot

java bootstrap spring-boot controller jpa spring-mvc h2-database sprinb java21
  • Updated May 4, 2024
  • Java
jpsonic

jpsonic / jpsonic

Star 53

Media server with excellent for multibyte languages

subsonic japanese-language upnp music-streaming-server subsonic-server airsonic java17 java21
  • Updated Nov 2, 2026
  • Java

chrisgleissner / loom-webflux-benchmarks

Star 48

Benchmarks of Spring Boot REST service comparing Java 21 Virtual Threads (Project Loom) with WebFlux (Project Reactor).

java http benchmark rest microservice jpa scalability postgresql python3 matplotlib performance-testing performance-optimization webflux spring-boot-cache springboot3 virtualthreads java21 projectloom ubuntu2404
  • Updated Nov 9, 2026
  • Python
osintgram4j

BC100Dev / osintgram4j

Sponsor
Star 37

A rebranded version of our old, beloved Osintgram Client

java instagram osint analysis tool hacking penetration-testing hacking-tool information-gathering instagram-account osintgram java21
  • Updated Sep 16, 2024
  • C

luismr / flight-tracker-event-server-java

Star 35

A Spring Boot application for tracking flight events.

java redis postgres kafka spring-boot postgresql swagger swagger-ui openapi-specification openapi3 java-21 java21
  • Updated May 8, 2025
  • Java

SpoilerRules / server-list-explorer

Star 30

A powerful tool for managing your Minecraft server list

kotlin minecraft cross-platform nbt desktop jetpack explorer customizable compose server-list minecraft-server-list minecraft-server-list-ping mcserverping mcsrvstat material3 compose-multiplatform java21 compose-multiplatform-desktop external-server-list server-list-manager
  • Updated Feb 25, 2026
  • Kotlin

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