jarFileList.setModel(new DefaultListModel()); sourceDirList.setModel(new DefaultListModel());
    private void postInitComponents() {        viewPanelLayout = (CardLayout) viewPanel.getLayout();        navigatorTree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);        navigatorTree.addTreeSelectionListener(new TreeSelectionListener() {            public void valueChanged(TreeSelectionEvent e) {                navigatorTreeSelectionChanged(e);            }        });        DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer();                navigatorTree.setCellRenderer(new FindBugsFrame.MyCellRenderer());    }