The Malete database core is the new basis of OpenIsis, which has its roots in the UNESCO CDS/ISIS database. Traditionaly used in libraries; now a general purpose highspeed database.
GeneX is an gene expression database system with an integrated toolset that enables researchers to store, analyze, and communicate their data.
This is a software which should be able to use in any commercial shops for billing the products which will be sold in their outlets.
JPO (Jigs Persistent Objects) is the persistence layer for 'Jigs for Java' web applications, extracted here for use outside of 'Jigs'. JPO supports Domain-Driven Design while embracing the use of SQL snippets for object-based queries.
Lucene has moved to Jakarta. Please visit http://lucene.apache.org/
MCDb is a database record manager written in Java with indexing, locking, etc. MCDb is a library built to be used by other programs to manage small data sets of program settings, etc.
Tiny and easy to use JDBC framework, simplifies usage of JDBC driver
A simple JDBC framework (JAR) by Jeff Smith. Employs database independent, unchecked exception code. Supports Oracle, mySQL, HSQL, and PostgreSQL--can be easily extended to new databases. See article (originally published on Developer.com ) here: http://softtechdesign.com/products/SQLExecutor/SQLExecutor.htm
XML database engine for mobile devices (iPaq, Palm, etc.). The core of the system is Java based, this way it makes it portable and able to run on different systems. It's very lightweight and runs on devices with little memory and storage place.