Toolkit for working with and mapping geospatial data
Database file mapping names to records, implementing a file-system
Heap organised database service (Java library)
ETL engine based on Groovy
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
FastVersion is a Qgis plugin for data versioning in a Postgis database
Big Sack: A lightweight Java Key/Value store with undo and disk cache.
Java API and Groovy Library for XML Scripting