The monitoring and management extensions can be subdivided into three categories:
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Read-only monitoring beans
Expose a variety of real-time metrics for monitoring health and throughput of your server.
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Configuration beans
Provide an easily navigable view of key system configuration for support and diagnostic purposes.
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Management beans
Allow control over various subsystems.
For more information on these categories of bean, refer to the reference section Java Management Extension (JMX) reference.
You can also manage JMX settings in the JMX Settings.