In the demo, a hip designer, a sharply-dressed marketer, and a smiling, relaxed developer sip lattes and calmly discuss how Flex is going to make customers happy and shorten the workday all while boosting the bottom line. The software systems they're using have been carefully selected and built from the ground up to work together seamlessly. There are no legacy systems, data, or competing business concerns to manage. Cut to reality. You're a Java developer. The marketing guy tells you that "corporate" wants a Flex-based site and you have to deliver it on top of what you already have. Your budget Don't even ask. "Make it look like the Discovery channel or something." Flex on Java assumes you live in the real world not the demo. This unique book shows you how to refactor an existing web application using the server-side you already know. You'll learn to use Flex 3 in concert with Spring, EJB 3, POJOs, JMS, and other standard technologies. Wherever possible, the examples use free or open source software. The authors start with a typical Java web app and show you how to add a rich Flex interface. You also learn how to integrate Flex into your server-side Java via the BlazeDS framework, Adobe's open-source remoting and web messaging technology for Flex. The book shows you how to deploy to not only the web but also to the desktop using the Adobe Integrated Runtime (AIR). You will learn how to integrate Flex into your existing applications in order to build a next generation application that will delight users. Flex on Java is approachable for anyone beginning Java and Flex development.