Java SE Core Technologies - Monitoring and Management

Starting with release 5.0, Java SE provides a comprehensive solution for monitoring and managing your applications, as well as for monitoring and managing the Java Virtual Machine.

Monitoring and Management Documentation: J2SE 5.0 | Java SE 6

Java Management Extensions(JMX) Documentation: J2SE 5.0 | Java SE 6

See Also:

The JMX Home Page
Monitoring and Management Forums
Monitoring Blogs
jconsole Blogs
Monitoring and Managing Java SE 6 Platform Applications
java.lang.management Bug Reports
Monitoring Bug Reports