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Starred repositories

51 stars written in Java
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Design patterns implemented in Java

Java 93,505 27,360 Updated Oct 21, 2025

Free and Open Source, Distributed, RESTful Search Engine

Java 75,658 25,747 Updated Dec 17, 2025

Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas

Java 36,943 7,619 Updated Dec 16, 2025

Netty project - an event-driven asynchronous network application framework

Java 34,650 16,257 Updated Dec 17, 2025

Mirror of Apache Kafka

Java 31,554 14,844 Updated Dec 17, 2025

👨‍🎓 Java Core Sprout : basic, concurrent, algorithm

Java 27,051 7,033 Updated May 21, 2024

Apache Flink

Java 25,614 13,805 Updated Dec 17, 2025

A powerful flow control component enabling reliability, resilience and monitoring for microservices. (面向云原生微服务的高可用流控防护组件)

Java 23,008 8,155 Updated Nov 13, 2025

Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.

Java 20,592 6,889 Updated Dec 17, 2025

High Performance Inter-Thread Messaging Library

Java 18,130 3,962 Updated Apr 2, 2025

Apache Hadoop

Java 15,414 9,178 Updated Dec 15, 2025

Apache Pulsar - distributed pub-sub messaging system

Java 15,012 3,698 Updated Dec 17, 2025

Apache Doris is an easy-to-use, high performance and unified analytics database.

Java 14,744 3,644 Updated Dec 17, 2025

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

Java 12,712 1,691 Updated Dec 1, 2025

Apache ZooKeeper

Java 12,692 7,329 Updated Dec 16, 2025

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

Java 12,284 3,412 Updated Dec 17, 2025

The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance …

Java 11,101 2,235 Updated Dec 17, 2025

SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.

Java 8,975 2,129 Updated Dec 17, 2025

Apache Iceberg

Java 8,338 2,921 Updated Dec 17, 2025

Distributed ID Generate Service

Java 6,710 1,874 Updated Jul 18, 2023

Apache Pinot - A realtime distributed OLAP datastore

Java 5,988 1,434 Updated Dec 17, 2025

🚀 Lightning fast and elegant mvc framework for Java8

Java 5,887 1,165 Updated Dec 15, 2025

Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps …

Java 5,252 447 Updated Oct 30, 2025

MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap-memory. It is a fast and easy to use embedded Java database engine.

Java 5,037 882 Updated Jun 4, 2024

Apache Calcite

Java 5,005 2,455 Updated Dec 17, 2025

The missing bridge between Java and native C++

Java 4,681 592 Updated Dec 9, 2025

The source code from the third edition of Effective Java, with minor additions as necessary to make it runnable.

Java 4,010 1,990 Updated Oct 28, 2020

A production-grade java implementation of RAFT consensus algorithm.

Java 3,773 1,187 Updated Nov 7, 2025

Java dataframe and visualization library

Java 3,721 652 Updated Jul 12, 2025

ID Generator id生成器 分布式id生成系统,简单易用、高性能、高可用的id生成系统

Java 2,357 599 Updated Jun 21, 2022
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