What is an RMI TCP receiver, connecting a receiver and signal manager in Visual VM?

I profile a program using Visual VM. My program has been running for some time and finally outputting several graphs using XChart , showing the results. After displaying the diagrams, I noticed in the Visual VM some of the active flows of Accept RMI TCP, Attach Listener, and Signal Dispatcher. What are these topics? I assume that they exist only in Visual VM. Am I right?

Screen shot from Visual VM

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The answer to this question is inadequate fooobar.com/questions/433918 / ...

; Attach, Signal RMI TCP Accept JMX jConsole, VisualVM .

(, Finalizer, Reference Handler).

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