docs: @Nonnull
    @OverrideOnDemand
    protected TOOLBAR_TYPE createDeleteToolbar (@Nonnull final WPECTYPE aWPEC,
                                                @Nonnull final FORM_TYPE aForm,
                                                @Nonnull final DATATYPE aSelectedObject)
    {
      final Locale aDisplayLocale = aWPEC.getDisplayLocale ();
  
      final TOOLBAR_TYPE aToolbar = getUIHandler ().createToolbar (aWPEC);
      aToolbar.addHiddenField (CPageParam.PARAM_ACTION, CPageParam.ACTION_DELETE);
      aToolbar.addHiddenField (CPageParam.PARAM_SUBACTION, CPageParam.ACTION_SAVE);
      aToolbar.addHiddenField (CPageParam.PARAM_OBJECT, aSelectedObject.getID ());
      // Yes button
      aToolbar.addSubmitButton (getDeleteToolbarSubmitButtonText (aDisplayLocale), getDeleteToolbarSubmitButtonIcon ());
      // No button
      aToolbar.addButtonNo (aDisplayLocale);
  
      // Callback
      modifyDeleteToolbar (aWPEC, aToolbar);
      return aToolbar;
    }