Database Subsetter and Relational Data Browser
Powerful generator for Java applications (JPA, Java EE...)
Java dataframe and visualization library
CAM XML Editor for XML+JSON+Hibernate+SQL Open-XDX sponsored by Oracle
Database SQL, query tool, using JDBC for Oracle,SQLite,PostgreSQL,etc
Database explorer to MySQL, Oracle, Sybase & others. Source maker JSF.
Java Enhanced Data Interface - Italian Senate Project
A Powerful Java Factory Framework
Open source Extract Transform Load engine written in Java
DATA Gen™ - Test Data Generator to generate realistic test data.