JToolBar bar = new JToolBar(); bar.setRollover(true);
JPanel bar = new JPanel();
    private JToolBar buildLeftToolBar()    {        JToolBar bar = new JToolBar();        bar.setRollover(true);        bar.setBorder(null);        bar.setFloatable(false);        bar.add(selectAll);        bar.add(Box.createRigidArea(H_SPACER_SIZE));        bar.add(clearAll);        return bar;    }