P6Spy is a framework that enables database activity to be seamlessly intercepted and logged with no code changes to existing applications.
PolyJDBC - lightweight JDBC abstraction supporting transactions, multiple databases and rich schema inspection/creationd.
'jdbacl' stands for 'Java DataBase ACcess Layer' and provides utilities for accessing JDBC databases from Java programs, retrieving meta information in an object model and querying database data.
Various utility methods for JDBC
Nyx simplifies the JDBC and offers fluent API. It's a sub-project of celum DB Tool.