Java Management Extensions (JMX) provide a standard mechanism to monitor and manage applications. Spring Boot exposes the most suitable MBeanServer as a bean with an ID of mbeanServer. Any of your beans that are annotated with Spring JMX annotations (@ManagedResource, @ManagedAttribute, or @ManagedOperation) are exposed to it.

If your platform provides a standard MBeanServer, Spring Boot will use that and default to the VM MBeanServer if necessary. If all that fails, a new MBeanServer will be created.

See the JmxAutoConfiguration class for more details.