MultiplePiePlot plot = new MultiplePiePlot(dataset);
plot.setDataExtractOrder(order);
plot.setBackgroundPainter(null);
plot.setBorderPainter(null);
PieToolTipGenerator tooltipGenerator
= new StandardPieToolTipGenerator();
PiePlot pp = (PiePlot) plot.getPieChart().getPlot();
pp.setToolTipGenerator(tooltipGenerator);
JFreeChart chart = new JFreeChart(title, plot);