ServiceComb Java Chassis is a Software Development Kit (SDK) for rapid development of microservices in Java, providing service registration, service discovery, dynamic routing, and service manageme…

A distributed tracing system, and APM ( Application Performance Monitoring )

Apache Heron (Incubating) is a realtime, distributed, fault-tolerant stream processing engine from Twitter

Pulsar - distributed pub-sub messaging system

OpenMessaging API for Java

Spring Framework

Realm is a mobile database: a replacement for SQLite & ORMs

Google Core Libraries for Java

Catch common Java mistakes as compile-time errors

🚄 A fast JSON parser/generator for Java

jsoniter (json-iterator) is fast and flexible JSON parser available in Java and Go

Microservice skeleton built in Spring Cloud.

Livy is an open source REST interface for interacting with Apache Spark from anywhere

AWS Service registry for resilient mid-tier load balancing and failover.

Simple scala wrapper for HttpURLConnection. OAuth included.

CSV Reader/Writer for Scala

A reference implementation of a JSON package in Java.

An HTTP+HTTP/2 client for Android and Java applications.

A Java API for generating .java source files.

A task based API for taking screenshots and scraping text from websites.

Rend server to proxy simple requests to an HTTP proxy

Add-on module for Jackson (http://jackson.codehaus.org) to support Scala-specific datatypes