Steve Perry has spent his time "in the trenches." "I've been paged at 3:00 a.m. to provide support because the system wasn't doing what it should and no one had a clue how to figure out why. I've scrolled through endless log files to decipher system problems, when a management solution could have presented an operator with a warning message hours earlier!" Wanting other developers to be able to learn from his experiences, Steve wrote Java Management Extensions. Java Management Extensions is a practical, hands-on guide to using the JMX APIs, Sun Microsystems's new Java-based tool for managing enterprise applications. This one-of-a-kind book is a complete treatment of the JMX architecture (both the instrumentation level and the agent level), and it's loaded with real-world examples for implementing management extensions. It also contains useful higher-level information about JMX (the "big picture") to help technical managers and architects who are evaluating various application management approaches and are considering using JMX. This book takes developers through JMX step by step, pointing out the "gotchas" before they have a chance to trip up smooth operation of the application. As J2EE becomes more widely adopted, the Java standard for management (JMX) becomes more and more crucial to avoid "splinter standards," where each vendor has its own distinct, if successful, way of doing things.