Free and Open Source, Distributed, RESTful Search Engine

Ghidra is a software reverse engineering (SRE) framework

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

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.

A browser automation framework and ecosystem.

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

Apache Kafka - A distributed event streaming platform

Telegram for Android source

Event Driven Orchestration & Scheduling Platform for Mission Critical Applications

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

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

Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

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…

A Java serialization/deserialization library to convert Java Objects into JSON and back

JDK main-line development https://openjdk.org/projects/jdk

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

QuestDB is a high performance, open-source, time-series database

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

Quarkus: Supersonic Subatomic Java.

Apache Pulsar - distributed pub-sub messaging system

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

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

Vert.x is a tool-kit for building reactive applications on the JVM

🏗 Build container images for your Java applications.

Style and Grammar Checker for 25+ Languages

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.

Very spicy additions to the Java programming language.

🔎 Open source distributed and RESTful search engine.

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