private static JFreeChart createChart(IntervalXYDataset intervalxydataset) {
   JFreeChart jfreechart =
       ChartFactory.createXYBarChart(
           "XYBarChartDemo6",
           "X",
           false,
           "Y",
           intervalxydataset,
           PlotOrientation.HORIZONTAL,
           false,
           false,
           false);
   jfreechart.setBackgroundPaint(Color.white);
   XYPlot xyplot = (XYPlot) jfreechart.getPlot();
   XYBarRenderer xybarrenderer = (XYBarRenderer) xyplot.getRenderer();
   xybarrenderer.setUseYInterval(true);
   xyplot.setBackgroundPaint(Color.lightGray);
   xyplot.setDomainGridlinePaint(Color.white);
   xyplot.setRangeGridlinePaint(Color.white);
   return jfreechart;
 }