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62 stars written in Java
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Design patterns implemented in Java

Java 93,867 27,368 Updated Mar 20, 2026

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

Java 80,405 41,887 Updated Apr 13, 2026

All Algorithms implemented in Java

Java 65,358 21,056 Updated Apr 13, 2026

Everything you need to know to get the job.

Java 64,917 12,913 Updated May 12, 2025

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

Java 48,336 7,597 Updated Apr 13, 2026

Open Source Identity and Access Management For Modern Applications and Services

Java 33,850 8,235 Updated Apr 13, 2026

Apache Kafka - A distributed event streaming platform

Java 32,367 15,107 Updated Apr 12, 2026

Apache Flink

Java 25,942 13,916 Updated Apr 13, 2026

Jenkins automation server

Java 25,190 9,463 Updated Apr 13, 2026

🔥下拉刷新、上拉加载、二级刷新、淘宝二楼、RefreshLayout、OverScroll,Android智能下拉刷新框架,支持越界回弹、越界拖动,具有极强的扩展性,集成了几十种炫酷的Header和 Footer。

Java 25,172 4,968 Updated Dec 4, 2024

Desktop/Android/HTML5/iOS Java game development framework

Java 25,001 6,532 Updated Apr 13, 2026

光 HikariCP・A solid, high-performance, JDBC connection pool at last.

Java 21,092 3,012 Updated Nov 4, 2025

Zipkin is a distributed tracing system

Java 17,427 3,104 Updated Apr 8, 2026

Quarkus: Supersonic Subatomic Java.

Java 15,596 3,130 Updated Apr 13, 2026

A Java 8+ Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)

Java 15,479 1,224 Updated Apr 2, 2026

A standalone Java Decompiler GUI

Java 15,059 2,477 Updated Jul 8, 2024

Microservice Architecture with Spring Boot, Spring Cloud and Docker

Java 13,891 6,381 Updated May 17, 2024

Admin UI for administration of spring boot applications

Java 12,829 3,128 Updated Apr 13, 2026

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

Java 12,735 1,685 Updated Feb 3, 2026

Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.

Java 12,609 2,905 Updated Apr 13, 2026

🎆 A well-designed local image and video selector for Android

Java 12,550 2,052 Updated May 15, 2023

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.

Java 8,628 1,825 Updated Apr 12, 2026

Java DSL for easy testing of REST services

Java 7,124 1,932 Updated Feb 4, 2026

Micronaut Application Framework

Java 6,400 1,176 Updated Apr 13, 2026

This is the new home of the original DDD Sample app (previously hosted at sf.net)..

Java 5,269 1,512 Updated Jun 2, 2025

PowerMock is a Java framework that allows you to unit test code normally regarded as untestable.

Java 4,184 580 Updated Jan 3, 2024

A library provides an easy way to show skeleton loading view like Facebook and Alipay

Java 3,723 459 Updated Jul 31, 2021

Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with…

Java 3,509 783 Updated Apr 12, 2026

Code for Head First Design Patterns book (2020)

Java 3,255 1,937 Updated Dec 5, 2023

TCP/HTTP/UDP/QUIC client/server with Reactor over Netty

Java 2,757 689 Updated Apr 13, 2026
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