http://www.SimpleOrm.org -- here's a snippet from the top of that page

Simple Object Relational Mapping   
To the database do no harm.  

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Simple adj. 1. Easy to understand, deal with, use etc.   2. not elaborate or artificial. 3. unaffected, unassuming.  4. not  complex or complicated.  [Macquarie Dictionary].

Overview
SimpleORM is new Java Object Relational Mapping open source project (Apache style licence).  It provides a very simple and easy way to implement object/relational mapping on top of JDBC at low cost and low overhead.  Not even an XML file to configure!

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Superb tool, database agnostic and allows to debug easily.