Design patterns implemented in Java

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

Java Native Access

Fork of tagtraum industries' GCViewer. Tagtraum stopped development in 2008, I aim to improve support for Sun's / Oracle's java 1.6+ garbage collector logs (including G1 collector)

Apache Maven Daemon

Benchmark comparing serialization libraries on the JVM

An authorization library that supports access control models like ACL, RBAC, ABAC in Java

Java language server

Secor is a service implementing Kafka log persistence

Concurrency Patterns and features found in Java, through multithreaded programming. Threads, Locks, Atomics and more.

Dr. Elephant is a job and flow-level performance monitoring and tuning tool for Apache Hadoop and Apache Spark

A set of utilities designed for incremental building, merging and optimization of data transformations.

A sampling JVM profiler without the safepoint sample bias

Java SDK for CloudEvents

Build functional, maintainable, beautiful User Guides with markdown and Znai plugins. Instant pages navigation. Local search. Multiple integrations to work with Python, Java, C++, OpenAPI, etc. Tra…

Schema modelling framework for decentralised domain-driven ownership of data.

The gateway component to make Spark on K8s much easier for Spark users.

K-Sortable Globally Unique IDs for Java

Asgarde allows simplifying error handling with Apache Beam Java, with less code, more concise and expressive code.

Bil Lewis' Omniscient Debugger for Java.

Java Structured Logging API for Logback, Log4J2, and JUL

Implementation of sbt's test interface for JUnit 5's Jupiter module

Replicates any database (CDC events) to Bigquery in real time

SmartOS / illumos / Solaris port of Bazel; A fast, scalable, multi-language and extensible build system