Proper noun
JMX
(computing) Initialism of Java Management Extensions.
Almost all tasks that you complete in the Administration Console use Java Management Extensions (JMX) to invoke an operation in an underlying managed bean (MBean) or modify an MBean attribute. Source: Internet
If you prefer to write a custom monitoring application, you can access the monitoring statistics using JMX or WLST by accessing the relevant runtime MBeans. Source: Internet