@ -120,7 +120,7 @@ public class TableDataTreePane extends BasicTableDataTreePane {
UIScrollPane scrollPane = new UIScrollPane(dataTree);
scrollPane.setBorder(null);
initbuttonGroup();
JPanel jPanel = new JPanel(new BorderLayout(4, 4));
JPanel jPanel = new JPanel(new BorderLayout(0, 0));
JPanel buttonPane = new JPanel(new GridLayout());
buttonPane.add(buttonGroup, BorderLayout.CENTER);
jPanel.add(buttonPane, BorderLayout.NORTH);