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

Zipkin is a distributed tracing system

Graphs for Everyone

Very spicy additions to the Java programming language.

Feign makes writing java http clients easier

Apache Cassandra®

Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

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.

Idiomatic persistence for Java and relational databases

Simple OAuth library for Java

Native Operating System and Hardware Information

Unified Queries for Java

🔬 Java Code Coverage Library

Small set of tools for JVM troublshooting, monitoring and profiling.

jOOR - Fluent Reflection in Java jOOR is a very simple fluent API that gives access to your Java Class structures in a more intuitive way. The JDK's reflection APIs are hard and verbose to use. Ot…

Fluent testing assertions for Java and the JVM

Unirest in Java: Simplified, lightweight HTTP client library.

Apache TinkerPop - a graph computing framework

A JPA 2.1 compliant Polyglot Object-Datastore Mapping Library for NoSQL Datastores.Please subscribe to:

True Object-Oriented Java Web Framework without NULLs, Static Methods, Annotations, and Mutable Objects

App for Android phones that counts your steps.

ProGuard Maven plugin that supports modularised ProGuard packages

https://openjdk.org/projects/valhalla

Unified Queries for Java

Automated Repair Awesomeness for Apache Cassandra

Code generation, reverse engineering, ant task and more tools for Hibernate Core

Prevayler

Slimming down jars since 2016

[deprecated] Mirror of Apache Maven plugins

a tool to support researchers on mining software repositories studies