Google core libraries for Java

Zipkin is a distributed tracing system

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

Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 11 and above, brought to you by Google.

A fast build system that encourages the creation of small, reusable modules over a variety of platforms and languages.

Free and open log management

Runtime code generation for the Java virtual machine.

configuration library for JVM languages using HOCON files

Simple Binary Encoding (SBE) - High Performance Message Codec

VisualVM is an All-in-One Java Troubleshooting Tool

A system for distributing and managing secrets

ZooKeeper client wrapper and rich ZooKeeper framework

Java libraries for writing composable microservices

Cross-platform static analyzer and linter for Swift.

Caja is a tool for safely embedding third party HTML, CSS and JavaScript in your website.

Embedding Rust in Java

A Squeak/Smalltalk VM and Polyglot Programming Environment for the GraalVM.