BoneCP is a Java JDBC connection pool implementation that is tuned for high performance by minimizing lock contention to give greater throughput for your applications. It currently beats all known connection pools, including C3P0 and DBCP, as shown on the benchmark section on the site.
CellarBoss provides a simple way to manage your wine cellar. It lets you easily update your database and includes printable reports. It uses an embedded Derby database so no separate database server is needed. The reports are created using Jasper Reports and can be printed and saved in many formats including PDF, HTML, Open Document, and XLS.
mysql-diff is a commandline database structure comparator. It compares the structure of two databases. It currently works with MySQL. A database can be specified as an SQL script or as an URL to a running database. So the tool can compare two scripts, two live databases, or a database and a script. The tool outputs SQL DDL script that can be used to convert one schema to another.
SYMPLiK XTRACT4J is a stand-alone, pure Java program that can create XML files from one or more dependent or independent SQL queries. A post-processing hook can be applied to this XML file, e.g. using Oracle BI Publisher RTF template to create professional PDF report with embedded barcodes. It was originally designed as a drop-in replacement for Oracle Report, with highly configurable and easy-to-use features.