JMX is the Java Management Extensions. This extension provides tools for managing and monitoring devices, applications, and service-driven networks. JE supports this extension.

The JE distribution supplies MBeans that can be deployed for monitoring a JE environment in any JMX server (such as an J2EE application server). Statistics and key operations can be invoked from these MBeans. In addition, JE provides a plugin for the jconsole utility which lets the user graphically access this information.

For information on how to use the jconsole plugin see:

JE_HOME/docs/jconsole/JConsole-plugin.html