Ghidra is a software reverse engineering (SRE) framework

Open Source Identity and Access Management For Modern Applications and Services

Apache Flink

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

Jenkins automation server

A Java serialization/deserialization library to convert Java Objects into JSON and back

JDK main-line development https://openjdk.org/projects/jdk

Zipkin is a distributed tracing system

Apache Hadoop

Most popular Mocking framework for unit tests written in Java

Apache Pulsar - distributed pub-sub messaging system

🏗 Build container images for your Java applications.

Apache Druid: a high performance real-time analytics database.

Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.

Conductor is a microservices orchestration engine.

Apache ZooKeeper

The Java gRPC implementation. HTTP/2 based RPC

Feign makes writing java http clients easier

Spinnaker is an open source, multi-cloud continuous delivery platform for releasing software changes with high velocity and confidence.

Java Native Access

Test Automation Made Simple

AutoMQ is a diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.

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

Free and open log management

An annotation processor for generating type-safe bean mappers

Catch common Java mistakes as compile-time errors

Java DSL for easy testing of REST services

A tool for mocking HTTP services

vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.

Apache Pinot - A realtime distributed OLAP datastore