After create a JPanel or JDialog (with the IDE), added some Components (on Design)
I switch to Source and if I try to generate getters/setter at the end of the file between:

   // End of variables declaration                   
  <----- HERE
  <--- No matter if I create empties lines with ENTER, the code is not generated UNTIL some legal code is typed by hand like a declaration, method etc..
}

pressing CTRL SPACE showup with all the option but no matter which one I select, the code is not genereted, there is very short instance in the Window > Navigator that a Component "<Error> ..." is shown and disappear in the tree.