Toolkit for working with and mapping geospatial data
An object relational-mapping (ORM) library for Java
Java persistence using JDO, JPA or REST
ETL engine based on Groovy
Database file mapping names to records, implementing a file-system
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
Concise spatial query and representation system (c-squares)
FastVersion is a Qgis plugin for data versioning in a Postgis database
Java library to remove Object/Relation Impedance
Interactive geospatial directory
Open source Extract Transform Load engine written in Java