private JComponent createCompositePanel(List<JComponent> additionalPanels) {
    final JPanel panel = new JPanel(new GridBagLayout());
    final GridBagConstraints c = new GridBagConstraints();
    c.anchor = GridBagConstraints.NORTHWEST;
    c.gridx = 0;
    c.gridy = GridBagConstraints.RELATIVE;
    c.weightx = 1;
    c.fill = GridBagConstraints.HORIZONTAL;
    panel.add(myPanel.myWholePanel, c);
    for (JComponent p : additionalPanels) {
      panel.add(p, c);
    }
    c.fill = GridBagConstraints.BOTH;
    c.weightx = 1;
    c.weighty = 1;
    panel.add(Box.createVerticalBox(), c);
    return panel;
  }
private JComponent createCompositePanel(List<JComponent> additionalPanels)