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35 stars written in Java
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Design patterns implemented in Java

Java 93,862 27,366 Updated Mar 20, 2026

Everything you need to know to get the job.

Java 64,918 12,914 Updated May 12, 2025

🔥 Seata is an easy-to-use, high-performance, open source distributed transaction solution.

Java 25,969 8,891 Updated Apr 8, 2026

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

Java 21,543 1,788 Updated Apr 10, 2026

Open-source IoT Platform - Device management, data collection, processing and visualization.

Java 21,524 6,220 Updated Apr 10, 2026

Zipkin is a distributed tracing system

Java 17,423 3,106 Updated Apr 8, 2026

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

Java 15,205 3,752 Updated Apr 11, 2026

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

Java 13,546 1,185 Updated Apr 17, 2024

Matrix is a plugin style, non-invasive APM system developed by WeChat.

Java 11,999 1,933 Updated Jul 23, 2024

The Java gRPC implementation. HTTP/2 based RPC

Java 11,996 3,983 Updated Apr 10, 2026

Resilience4j is a fault tolerance library designed for Java8 and functional programming

Java 10,621 1,452 Updated Mar 29, 2026

A proof-of-concept tool for generating payloads that exploit unsafe Java object deserialization.

Java 8,835 1,854 Updated Dec 4, 2025

👑 LeetCode of algorithms with java solution(updating).

Java 8,717 1,701 Updated Dec 10, 2020

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

Java 8,575 1,025 Updated Apr 10, 2026

Tsunami is a general purpose network security scanner with an extensible plugin system for detecting high severity vulnerabilities with high confidence.

Java 8,561 917 Updated Apr 9, 2026

Gnirehtet provides reverse tethering for Android

Java 7,538 699 Updated Aug 11, 2024

vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.

Java 6,127 658 Updated Apr 1, 2026

Kafka Web UI

Java 6,125 893 Updated Apr 10, 2026

Yahoo! Cloud Serving Benchmark

Java 5,204 2,322 Updated Mar 4, 2026
Java 3,817 586 Updated Apr 2, 2026

Kafka GUI for Apache Kafka to manage topics, topics data, consumers group, schema registry, connect and more...

Java 3,786 766 Updated Apr 10, 2026

Micro second messaging that stores everything to disk

Java 3,717 561 Updated Mar 30, 2026

Simple Binary Encoding (SBE) - High Performance Message Codec

Java 3,424 573 Updated Apr 7, 2026

Cruise-control is the first of its kind to fully automate the dynamic workload rebalance and self-healing of a Kafka cluster. It provides great value to Kafka users by simplifying the operation of …

Java 3,014 645 Updated Nov 6, 2025

An Extensible Request/Response Workbench

Java 1,329 79 Updated Dec 18, 2025

Get rid of the boilerplate code in properties based configuration.

Java 936 212 Updated Apr 1, 2026

jHiccup is a non-intrusive instrumentation tool that logs and records platform "hiccups" - including the JVM stalls that often happen when Java applications are executed and/or any OS or hardware p…

Java 700 93 Updated Feb 5, 2026

mock the internet

Java 581 47 Updated May 22, 2020

Lab solutions for Spring and Spring Boot course

Java 293 259 Updated Jan 29, 2026

Graphouse allows you to use ClickHouse as a Graphite storage.

Java 260 53 Updated Jun 14, 2024
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