Use graphviz with pure java

Rhino is an open-source implementation of JavaScript written entirely in Java

Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.

Code for Quartz Scheduler

Java agent that enables class reloading in a running JVM

A Scala API for Apache Beam and Google Cloud Dataflow.

BitSail is a distributed high-performance data integration engine which supports batch, streaming and incremental scenarios. BitSail is widely used to synchronize hundreds of trillions of data ever…

A tutorial on the most important features and idioms of Scala that you need to use Spark's Scala APIs.

Sift is a basic, Relational Algebra based query engine built on top of Apache Arrow. It draws inspiration from Andy Grove's KQuery.

A Gradle plugin that checks whether different artifacts in a configuration provide the same classes

TornadoVM: A practical and efficient heterogeneous programming framework for managed languages

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

Apache Fluss is a streaming storage built for real-time analytics.

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.