How to create performance counters that are exposed by jmx and accessed via jconsole?

Question

How to create performance counters that are exposed by jmx and accessed via jconsole?

Say whenever I instantiate a particular object, I increment a counter. I want to expose the counter value so I can view the value in jconsole.

How would I go about doing this?

Answer 1

There's a few steps:

• Define an MBean interface that exposes your counter.
• Create an implementation of that interface
• Register the implementation with the platform MBean server using ManagementFactory.getPlatformMBeanServer().registerMBean(...)
• Access the MBean from jconsole

There are details in the JMX tutorial.