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The JVM Browser lists locally discovered JVMs that are running on your computer. You can connect to these JVMs using the Java Mission Control plug-ins even if JMXRMI was not configured for them. If you cannot connect to a locally discovered JVM, it probably means that the version of the JVM does not support JMXRMI by default, or it must be enabled manually (for example, a 64-bit version of Java Mission Control cannot enable JMXRMI in a 32-bit JVM).
To change preferences for locally discovered JVMs:
Open the Window menu and select Preferences.
In the left pane, expand Java Mission Control, then JVM Browser, and select Local.
Select Automatically start the local management agent if not already started to enable JMXRMI for any locally discovered JVM. If you disable the option, then Java Mission Control will only connect to the JVMs with JMXRMI enabled.
Select Show unconnectable JVMs to show the JVMs in the browser that cannot be connected to unless you manually enable JMXRMI for them.
Click Apply to apply the changes.
To control the remote JMX agents on a JVM:
Right click a locally discovered JVM.
Select Control the Remote JMX Agent.
In the Control the Remote JMX Agent Wizard, you can:
Select Stop Remote JMX Agent to disable JMXRMI for this JVM.
Select Start Remote JMX Agent and configure the connection settings.
The JMXRMI settings are cover in Java Mission Control Communications and Chapter 2 of the Java SE Monitoring and Management Guide at http://docs.oracle.com/javase/8/docs/technotes/guides/management/agent.html
Click Finish to apply the changes.