Free and Open Source, Distributed, RESTful Search Engine

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

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

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

Very spicy additions to the Java programming language.

A Java API for generating .java source files.

Distributed and fault-tolerant realtime computation: stream processing, continuous computation, distributed RPC, and more

📈 Capturing JVM- and application-level metrics. So you know what's going on.

Use SQL to query Elasticsearch

Web-based notebook that enables data-driven, interactive data analytics and collaborative documents with SQL, Scala and more.

Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.

configuration library for JVM languages using HOCON files

Play framework

Hawtio web console helps you manage your JVM stuff and stay cool!

Cassandra Java Client

Solandra = Solr + Cassandra

binary serialization format

The Amazon DynamoDB Storage Backend for JanusGraph

Eclipse plug-in for TestNG

Annotation based model factory for Java

Stomp Integration Layer and Transaction Server

S3 like FileSystem based on Cassandra

Java dependency resolver using Maven's Aether for Java and Ruby

A Mavenization of the Red5 Flash Media Server

An append-only, key-multivalue store

A high performance, reliable pixel server

From zero to search in the flash of a gem.

Sphinx searchd client (java api)

Make Java code do your bidding