I'd like to thank Marc Fleury for his excellent insights into JMX and for kicking my arse to keep me moving. I also much thank Andreas Schaefer for his help in covering some of the difficult parts of the book. My thanks to all the folks at Sams who made this book real, especially Christy Franklin for her help and comments to get the chapters finished, and the Technical Editor, Kevin Farnham, for putting up with my buggy Java command-line instructions. To Mikko and Tuomo, thanks for dragging me out for an occasional movie or a game of squash. There are numerous other people to thank I can't remember right now. JBoss developers—you should be proud of your work. And of course, I would like to thank the Academy.