Originally posted by Alvin chew:
would you introduce JMX as well, what is JMX actually ?
One of the reviewers of the book at Amazon says that
Supporting technologies, such as shutdown hook, Digester, JMX, are also well explained so that you will be really prepared to wade through complex code.
So we can clearly see from his review that JMX in Tomcat is covered in the book...
This is a description of JMX from
Sun's Official JMX home page
The Java Management Extensions (JMX) technology is an open technology for management and monitoring that can be deployed wherever management and monitoring are needed. By design, this standard is suitable for adapting legacy systems, implementing new management and monitoring solutions and plugging into those of the future.
Hope it helps....

Co-author of SCMAD Exam Guide, Author of JMADPlus
SCJP1.2, CCNA, SCWCD1.4, SCBCD1.3, SCMAD1.0, SCJA1.0, SCJP6.0