DatabaseToUML reverse engineers a database schema from an existing relational JDBC database. Tables and fields are reversed to classes and attributes, constraints are reversed to association, and tables composed only of foreign keys are converted to many-to-many associations. The main idea is to reuse the reversed model in a generator, taking UML2.x (EMF XMI 2.0/2.1) models as input.
Zowie.Fractals is a plugin for the popular Eclipse IDE that lets the user explore the set of complex numbers in the Mandelbrot set. When rendered visually, these can be quite distracting, and even pretty. It features intuitive mouse usage, the ability to load and save your work as PNG files, the ability to change the number of iterations, and full editor history integration.
Databene Benclipse is an Eclipse plugin that integrates Databene Benerator with Eclipse. Benerator's purpose is to generate mass test data for performance testing that satisfies even complex validity constraints. Benclipse greatly simplifies especially the first steps in test data generation and speeds up test data definition even more by providing a project wizard with a series of templates to start with, a set of bundled JDBC drivers, a sophisticated JDBC configuration wizard, a database snapshot facility for creating database dumps in DbUnit format, and a built-in HSQL database for trying the first steps.