Data Storm is a database browser that can be
embedded in Java code. It is intended to be used
within tests to allow you to inspect why database
dependent tests are failing. It uses SWT for speed
and native look and feel.
JoSQL provides SQL capabilities for querying,
ordering, and grouping of collections of Java
objects (POJOs). It allows a SQL statement to be
applied to the collection of objects and the
matching set returned, ordered, and grouped.
ObJectRelationalBridge (OJB) is an Object/Relational mapping tool that allows transparent persistence for Java objects against relational databases. It supports multiple persistence APIs, including JDO, ODMG, and several custom alternatives.