Apache Iceberg

A digital logic designer and circuit simulator.

Apache XTable (incubating) is a cross-table converter for lakehouse table formats that facilitates interoperability across data processing systems and query engines.

The Amazon Athena Query Federation SDK allows you to customize Amazon Athena with your own data sources and code.

A Java-based generator for JWK and JPSKs

Tool to generate a Hive schema from a JSON example doc

OpenAPI JSON Schema Generator allows auto-generation of API client libraries with a focus on JSON schema given an OpenAPI document

Digital Circuit Emulator written in Java

Building and testing an experimental Swerve Drive