Efficient non-blocking network and file I/O, for building Node.js-like client/server applications with high performance requirements. It is similar to Event Loop in Node.js. Although Eventloop runs in a single thread, multiple event loops can be launched at the same time allowing for efficient CPU usage.

Utils for test purposes, custom DataKernelRunner and custom JUnit rules.

High-performance asynchronous HTTP clients and servers collection. Package contains a bunch of different built-in servlets for request dispatching, loading of a static content, etc.

High-performance and fault-tolerant remote procedure call module for building distributed applications. Provides a high-performance asynchronous binary RPC streaming protocol.

Composable asynchronous/reactive streams with powerful data processing capabilities.

Implementation of operational transformation technology which allows to build collaborative software systems.

An intelligent way of booting complex applications and services according to their dependencies

A convenient way to organize asynchronous code. Promises are a faster and more efficient version of JavaScript's Promise and Java's CompletionStage's.

DataKernel : Boot : JMX

Package provides integration with UIKernel.io JS frontend library: JSON serializers, grid model, basic servlets.