An object relational-mapping (ORM) library for Java
Toolkit for working with and mapping geospatial data
Automated tests with databases: prep, verify, restore tables
A Java SQL client for any JDBC compliant database
Relational Database
A powerful, cross platform, SQL database system
Database Subsetter and Relational Data Browser
DAO for all database server types with the Java POJO code generator
Java persistence using JDO, JPA or REST
Deductive Database with Datalog, SQL, RA, TRC, DRC
Financial program
Database Replication, Filtered Synchronization, and Transformation
Java Application Framework