ChartFactory.createXYLineChart(testName, "send rate (msg/s)", "receive rate (msg/s)", dataset, PlotOrientation.VERTICAL, true, true, false);
ChartFactory.createXYLineChart(testName, xLabel, yLabel, dataset, PlotOrientation.VERTICAL, true, true, false);
   protected void chartPerformanceTest(PerformanceTest pt) throws Exception   {      // a chart depicts more executions      String testName = pt.getName();      XYSeriesCollection dataset = new XYSeriesCollection();      for(Iterator i = pt.getExecutions().iterator(); i.hasNext(); )      {         Execution e = (Execution)i.next();         chartExecution(dataset, e);      }      JFreeChart chart =         ChartFactory.createXYLineChart(testName, "send rate (msg/s)", "receive rate (msg/s)",                                        dataset, PlotOrientation.VERTICAL, true, true, false);      createImage(chart, generateImageName(testName));   }