TreePath newPath = new TreePath(getPathToRoot(prev, 0));
newPath = treeState.getPathForRow(nextRow); tree.addSelectionPath(newPath); tree.setLeadSelectionPath(newPath); } else if (command.equals("selectNextChangeLead") && hasNext) { newPath = treeState.getPathForRow(nextRow);
    public void actionPerformed(ActionEvent e)    {      Object last = tree.getLeadSelectionPath().getLastPathComponent();      if (e.getActionCommand().equals("selectPreviousChangeLead"))        {          Object prev = getPreviousVisibleNode(last);          if (prev != null)            {              TreePath newPath = new TreePath(getPathToRoot(prev, 0));              selectPath(tree, newPath);              tree.setLeadSelectionPath(newPath);            }        }      else if (e.getActionCommand().equals("selectPreviousExtendSelection"))        {          Object prev = getPreviousVisibleNode(last);          if (prev != null)            {              TreePath newPath = new TreePath(getPathToRoot(prev, 0));              tree.addSelectionPath(newPath);              tree.setLeadSelectionPath(newPath);            }        }      else if (e.getActionCommand().equals("selectPrevious"))        {          Object prev = getPreviousVisibleNode(last);                    if (prev != null)            {              TreePath newPath = new TreePath(getPathToRoot(prev, 0));              selectPath(tree, newPath);            }        }      else if (e.getActionCommand().equals("selectNext"))        {          Object next = getNextVisibleNode(last);                    if (next != null)            {              TreePath newPath = new TreePath(getPathToRoot(next, 0));              selectPath(tree, newPath);            }        }      else if (e.getActionCommand().equals("selectNextExtendSelection"))        {          Object next = getNextVisibleNode(last);          if (next != null)            {              TreePath newPath = new TreePath(getPathToRoot(next, 0));              tree.addSelectionPath(newPath);              tree.setLeadSelectionPath(newPath);            }        }      else if (e.getActionCommand().equals("selectNextChangeLead"))        {          Object next = getNextVisibleNode(last);          if (next != null)            {              TreePath newPath = new TreePath(getPathToRoot(next, 0));              selectPath(tree, newPath);              tree.setLeadSelectionPath(newPath);            }        }    }