How to make a JFrame have no taskbar button?

I would like to have a normal JFrame with its full functionalities (decoration, title, icon, resizing, minimizing, maximizing, etc.), with the only thing that it wouldn't appear in the system's taskbar.

(Typically, there would be another program opening and managing them开发者_如何转开发).

Is it possible ? And if yes, what is the best way to do that ?

Use a non-modal JDialog instead of a JFrame.