As an ADF enthusiast, I'd like to thank Oracle for finally making a free version of Oracle ADF available. With it's high productivity and advanced features, ADF Essentials has the potential to become the standard way of writing data-handling applications. With this book, I hope to help that become a reality.

Others have gone before me in the quest to get the combination of ADF Essentials, MySQL, and GlassFish to work together. I'd especially like to thank Markus Eisele, Duncan Mills, Chris Muir, Jobinesh Purushothaman, Bauke Scholtz, and Shay Shmeltzer, whose work with ADF, Apache Shiro, MySQL, and GlassFish I have benefited from.

I also appreciate the efforts of the people at Packt Publishing who have been supporting this project, as well as my reviewers who have improved the book with their excellent questions and suggestions.

Finally, I'd like to thank my lovely wife for her love, support, and understanding for yet another book project.