title: What is RMI TCP Accept, Attach Listener, and Signal Dispatcher in Visual VM?
body: <p>I'm profiling a program with Visual VM. My program runs for a while and finally pops up a few plots using <a href="https://github.com/timmolter/XChart" rel="noreferrer">XChart</a> showing the results. After the charts are displayed, I noticed in Visual VM some active threads "RMI TCP Accept", "Attach Listener", and "Signal Dispatcher". What are these threads? I assume they are there in connection with Visual VM only. Am I correct??</p>
  
  <p><img src="https://i.stack.imgur.com/8eKLe.png" alt="Screen shot from Visual VM"></p>