Free and Open Source, Distributed, RESTful Search Engine

Everything you need to know to get the job.

Termux - a terminal emulator application for Android OS extendible by variety of packages.

Google core libraries for Java

Free universal database tool and SQL client

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

The java implementation of Apache Dubbo. An RPC and microservice framework.

Getting Started with Spring Boot 3:

A browser automation framework and ecosystem.

Apache Kafka - A distributed event streaming platform

The automation tower defense RTS

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

Apache Flink

a fast, scalable, multi-language and extensible build system

Desktop/Android/HTML5/iOS Java game development framework

APM, Application Performance Monitoring System

Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex di…

Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.

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

A collection of algorithms and data structures

Modern Java - A Guide to Java 8

The official home of the Presto distributed SQL query engine for big data

Graphs for Everyone

Apache Hadoop

Apache Pulsar - distributed pub-sub messaging system

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

Logstash - transport and process your logs, events, or other data

Style and Grammar Checker for 25+ Languages

Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.

Conductor is a microservices orchestration engine.