https://openjdk.org/projects/code-tools/jol

OpenTelemetry Java SDK

Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events

Netty project - an event-driven asynchronous network application framework

The One Billion Row Challenge -- A fun exploration of how quickly 1B rows from a text file can be aggregated with Java

Collects unit tests from Java and Kotlin repositories

Detects performed refactorings in the changes in Kotlin code

Apache Log4j 2 is an upgrade to Log4j that provides significant improvements over its predecessor, Log4j 1.x, and provides many of the improvements available in Logback while fixing some inherent p…

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

A plugin for IntelliJ IDEA for extracting code duplicates into a new method as soon as they are introduced.

Axibase Time Series Database API Client for Java

JDBC Type 4 Driver for Axibase Time Series Database

Tests for ATSD api

Library to easily use Kotlin Serialization to serialize to/from CSV.

Action for checking out a repo

Set up your GitHub Actions workflow with a specific version of Java

JavaCC - a parser generator for building parsers from grammars. It can generate code in Java, C++ and C#.