private ChangesetDialogPopup popupMenu;
protected void buildChangesetsLists() {
DefaultListSelectionModel selectionModel = new DefaultListSelectionModel();
inSelectionModel = new ChangesetInSelectionListModel(selectionModel);
lstInSelection = new JList<>(inSelectionModel);
lstInSelection.setSelectionModel(selectionModel);
lstInSelection.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
lstInSelection.setCellRenderer(new ChangesetListCellRenderer());