@Nonnull public IMenuSeparator createSeparator (@Nonnull final String sParentID, @Nonnull @Nonempty final String sID) { final DefaultTreeItemWithID <String, IMenuObject> aParentItem = getItemWithID (sParentID); if (aParentItem == null) throw new IllegalArgumentException ("No such parent menu item '" + sParentID + "'"); return internalCreateChildItem (aParentItem, new MenuSeparator (sID)); }
@Nonnull public IMenuSeparator createRootSeparator (@Nonnull @Nonempty final String sID) { return internalCreateChildItem (getRootItem (), new MenuSeparator (sID)); }