I want to use setComponentPopupMenu (). But Scala.Swing.Component does not seem to have all the JComponent methods, although javax.swing.JComponent is referenced in the documentation. So I'm a little confused.
The ScalaSwing api is rather incomplete, but it gives you access to the basic swinging object with peer. So you can do
peer
yourScalaSwingComponent.peer.setComponentPopupMenu(...)
You will return to java (swing) land.