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

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

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

Apache Cassandra®

Efficient reliable UDP unicast, UDP multicast, and IPC message transport

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

Statistical Machine Intelligence & Learning Engine

JanusGraph: an open-source, distributed graph database

LIBSVM -- A Library for Support Vector Machines

XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.

Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.

Deep Learning (Python, C, C++, Java, Scala, Go)

An experimental toolset for Unity asset and asset bundle files.

An open source clone of Amazon's Dynamo.

Java Driver for Apache Cassandra®

An advanced, but easy to use, platform for writing functional applications in Java 8.

Dead-Simple Packaging and Deployment for JVM Apps

QuickFIX/J is a full featured messaging engine for the FIX protocol. - This is the official project repository.

High Performance Primitive Collections for Java

Java annotation-based framework for parsing Git like command line structures

Java Agent for Memory Measurements

jHiccup is a non-intrusive instrumentation tool that logs and records platform "hiccups" - including the JVM stalls that often happen when Java applications are executed and/or any OS or hardware p…

Automated Repair Awesomeness for Apache Cassandra

Java classes designed with optimizable object layout in mind

Trident-ML : A realtime online machine learning library

Fast FIX protocol library for the JVM

ADMM based large scale logistic regression

Simple JVM Profiler Using StatsD and Other Metrics Backends

Java version of LIBLINEAR