Every developer who has deployed a mission critical application knows it is not enough just to write great code; to be truly useful, critical applications must be manageable as well. JMX is a tool with which to instrument and manage software products. It will soon be a standard part of the J2EE specification and is also being accepted by the telephony industry for key specifications. The probability that developers will encounter JMX in one form or another is very high. A copy of this book will dramatically reduce a developer's JMX learning curve, giving them the foundation and technical details needed to make effective use of JMX wherever they find it. Comprehensive coverage includes two chapters of introduction to JMX, seven chapters of practical instrumentation examples and advice, including how to relate security to JMX, and two chapters positioning JMX as a fundamental technology for J2EE and Web services. Readers can use this book as both an introduction to JMX and as a frequent desktop reference.