navigatorTree.setRootVisible(false); navigatorTree.setShowsRootHandles(true);
    private void postInitComponents() {        viewPanelLayout = (CardLayout) viewPanel.getLayout();        navigatorTree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);        // Add a tree selection listener to the navigator tree, so we can        // ensure that the view is always consistent with the current selection.        navigatorTree.addTreeSelectionListener(new TreeSelectionListener() {            public void valueChanged(TreeSelectionEvent e) {                navigatorTreeSelectionChanged(e);            }        });        DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer();        navigatorTree.setCellRenderer(new FindBugsFrame.MyCellRenderer());		jarFileList.setModel(new DefaultListModel());	sourceDirList.setModel(new DefaultListModel());    }