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121 stars written in Java
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《Hello 算法》:动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語,提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现

Java 125,068 15,038 Updated Apr 10, 2026

Google core libraries for Java

Java 51,507 11,154 Updated Apr 10, 2026

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

Java 37,237 7,635 Updated Apr 10, 2026

Apache Flink

Java 25,936 13,913 Updated Apr 11, 2026

A high performance caching library for Java

Java 17,587 1,683 Updated Apr 6, 2026

Quarkus: Supersonic Subatomic Java.

Java 15,593 3,125 Updated Apr 10, 2026

Apache DolphinScheduler is the modern data orchestration platform. Agile to create high performance workflow with low-code

Java 14,213 5,025 Updated Apr 11, 2026

Conductor is a microservices orchestration engine.

Java 12,781 2,330 Updated Dec 22, 2023

🔎 Open source distributed and RESTful search engine.

Java 12,729 2,512 Updated Apr 11, 2026

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 11,552 2,389 Updated Apr 11, 2026

A Java API for generating .java source files.

Java 10,857 1,388 Updated Oct 10, 2024

A collection of source code generators for Java.

Java 10,553 1,212 Updated Apr 9, 2026

Feign makes writing java http clients easier

Java 9,783 1,936 Updated Apr 10, 2026

Apache Tomcat

Java 8,136 5,359 Updated Apr 9, 2026

Free and open log management

Java 8,001 1,100 Updated Apr 10, 2026

Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.

Java 6,576 1,874 Updated Apr 10, 2026

Asynchronous Http and WebSocket Client library for Java

Java 6,407 1,591 Updated Apr 10, 2026

Flink CDC is a streaming data integration tool

Java 6,387 2,143 Updated Apr 9, 2026

Java 1-25 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.

Java 6,072 1,224 Updated Apr 1, 2026

Advanced Java Redis client for thread-safe sync, async, and reactive usage. Supports Cluster, Sentinel, Pipelining, and codecs.

Java 5,732 1,074 Updated Apr 11, 2026

An extensible multilanguage static code analyzer.

Java 5,373 1,559 Updated Apr 8, 2026

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 5,350 456 Updated Oct 30, 2025

A high performance scripting language hosted on the JVM.

Java 5,184 898 Updated Mar 4, 2026

Apache Calcite

Java 5,105 2,474 Updated Apr 9, 2026

Apache Ignite

Java 5,063 1,933 Updated Apr 10, 2026

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 5,040 882 Updated Jun 4, 2024

Java runtime metadata analysis

Java 4,774 705 Updated Jun 17, 2024

A reference implementation of a JSON package in Java.

Java 4,715 2,594 Updated Mar 26, 2026

Fork of tagtraum industries' GCViewer. Tagtraum stopped development in 2008, I aim to improve support for Sun's / Oracle's java 1.6+ garbage collector logs (including G1 collector)

Java 4,635 993 Updated Dec 6, 2025

🔬 Java Code Coverage Library

Java 4,528 1,199 Updated Apr 8, 2026
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