Dan Allen is a passionate enterprise software developer, scholar, and mentor. For Dan, the end game is to be a mentor, and writing is one medium he uses to pursue that goal. Dan has over eight years of development experience using technologies that include Java frameworks (Seam, JSF, EJB3, Hibernate, Spring, Struts), testing frameworks (JUnit, TestNG), JavaScript and DOM scripting, CSS and page layouts, Maven 2, Ant, Groovy, as well as a wealth of other technologies not mentioned. Dan is also a dedicated open source advocate, and is very proud, and not a tad bit shy, about the fact that he has been running Linux, and only Linux, since the turn of the millennium. Dan's professional passions are equally divided between Java and Linux, with a hint of other technologies mixed in.