Enable a specific series in Jfreechart - XYLinechart

Question

I have a chart which has mouse events enabled. When I click on a specific line, only that series should be visible and all others should be disabled. Each time I click on a new line, the previously selected line is still visible. I don't want that happening. How can I get the appropriate line displayed ?

chartPanel.addChartMouseListener(new ChartMouseListener() {
{
    public void chartMouseClicked(ChartMouseEvent event)
    {

        int x = event.getTrigger().getX();
        int y = event.getTrigger().getY();
        ChartEntity entity = event.getEntity();
        if (entity != null)
        {
              PieSectionEntity item = (PieSectionEntity)event.getEntity();
              int index = item.getSectionIndex();
              chart.getXYPlot().getRenderer().setBaseSeriesVisible(false);
              chart.getXYPlot().getRenderer().setSeriesVisible(index, true);
        }
}

 public void chartMouseMoved(ChartMouseEvent e) {}
});