/**
* Creates a frame to show the provided panel.
*
* @param panel
* @param robot
* @throws java.awt.HeadlessException
*/
private void showPanel(final JPanel panel, Robot robot) throws
HeadlessException {
Frame app = new Frame();
app.setSize(panel.getSize());
app.add(panel);
FrameFixture frame = new FrameFixture(robot, app);
frame.show();
}