Jfree chart on Mac

Hello,

We used the simple Pie chart sample code run on the Mac OS. We see the chart mouse listener is not getting triggered. Same code works on windows

Please can anyone point us what mistake we are doing

Here is the code....


import java.awt.Dimension;
import java.awt.event.MouseEvent;
import java.io.PrintStream;
import org.jfree.chart.*;
import org.jfree.chart.entity.ChartEntity;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

public class MouseListenerDemo1 extends ApplicationFrame
implements ChartMouseListener
{

public MouseListenerDemo1(String s)
{
super(s);
DefaultPieDataset defaultpiedataset = new DefaultPieDataset();
defaultpiedataset.setValue("Java", new Double(43.200000000000003D));
defaultpiedataset.setValue("Visual Basic", new Double(0.0D));
defaultpiedataset.setValue("C/C++", new Double(17.5D));
org.jfree.chart.JFreeChart jfreechart = ChartFactory.createPieChart("Pie Chart Demo 1", defaultpiedataset, true, true, false);
ChartPanel chartpanel = new ChartPanel(jfreechart, false, false, false, false, false);
chartpanel.addChartMouseListener(this);
chartpanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartpanel);

}

public void chartMouseClicked(ChartMouseEvent chartmouseevent)
{
ChartEntity chartentity = chartmouseevent.getEntity();
if (chartentity != null)
System.out.println("Mouse clicked: " + chartentity.toString());
else
System.out.println("Mouse clicked: null entity.");
}

public void chartMouseMoved(ChartMouseEvent chartmouseevent)
{
int i = chartmouseevent.getTrigger().getX();
int j = chartmouseevent.getTrigger().getY();
ChartEntity chartentity = chartmouseevent.getEntity();
if (chartentity != null)
System.out.println("Mouse moved: " + i + ", " + j + ": " + chartentity.toString());
else
System.out.println("Mouse moved: " + i + ", " + j + ": null entity.");
}


public static void main(String args[])
{
MouseListenerDemo1 mouselistenerdemo1 = new MouseListenerDemo1("Mouse Listener Demo");
mouselistenerdemo1.pack();
RefineryUtilities.centerFrameOnScreen(mouselistenerdemo1);
mouselistenerdemo1.setVisible(true);
}
}