Free and Open Source, Distributed, RESTful Search Engine

Modern Java - A Guide to Java 8

Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.

Asynchronous socket, http(s) (client+server) and websocket library for android. Based on nio, not threads.

Tiny, easily embeddable HTTP server in Java.

Generate Java types from JSON or JSON Schema and annotate those types for data-binding with Jackson, Gson, etc

Joda-Time library with Android specialization

A Real-Time Audio Processing Framework in Java

TCP/UDP client/server library for Java, based on Kryo

Mirror of Apache HttpClient

Compare JSON in your Unit Tests

Simple Libraries to access the Rdio Web Service API

Mirror of Apache HttpComponents HttpAsyncClient