Program: 85881
Project: 85881
Buggy source:
/** 
 * Draws the plot on a Java 2D graphics device (such as the screen or a printer).
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 * @param anchor  the anchor point (<code>null</code> permitted).
 * @param parentState  the state from the parent plot, if there is one.
 * @param info  collects info about the drawing.
 */
@Override public void draw(Graphics2D g2,Rectangle2D area,Point2D anchor,PlotState parentState,PlotRenderingInfo info){
  RectangleInsets insets=getInsets();
  insets.trim(area);
  if (info != null) {
    info.setPlotArea(area);
    info.setDataArea(area);
  }
  drawBackground(g2,area);
  drawOutline(g2,area);
  Shape savedClip=g2.getClip();
  g2.clip(area);
  Composite originalComposite=g2.getComposite();
  g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,getForegroundAlpha()));
  if (!DatasetUtilities.isEmptyOrNull(this.dataset)) {
    int seriesCount=0, catCount=0;
    if (this.dataExtractOrder == TableOrder.BY_ROW) {
      seriesCount=this.dataset.getRowCount();
      catCount=this.dataset.getColumnCount();
    }
 else {
      seriesCount=this.dataset.getColumnCount();
      catCount=this.dataset.getRowCount();
    }
    if (this.maxValue == DEFAULT_MAX_VALUE)     calculateMaxValue(seriesCount,catCount);
    double gapHorizontal=area.getWidth() * getInteriorGap();
    double gapVertical=area.getHeight() * getInteriorGap();
    double X=area.getX() + gapHorizontal / 2;
    double Y=area.getY() + gapVertical / 2;
    double W=area.getWidth() - gapHorizontal;
    double H=area.getHeight() - gapVertical;
    double headW=area.getWidth() * this.headPercent;
    double headH=area.getHeight() * this.headPercent;
    double min=Math.min(W,H) / 2;
    X=(X + X + W) / 2 - min;
    Y=(Y + Y + H) / 2 - min;
    W=2 * min;
    H=2 * min;
    Point2D centre=new Point2D.Double(X + W / 2,Y + H / 2);
    Rectangle2D radarArea=new Rectangle2D.Double(X,Y,W,H);
    for (int cat=0; cat < catCount; cat++) {
      double angle=getStartAngle() + (getDirection().getFactor() * cat * 360 / catCount);
      Point2D endPoint=getWebPoint(radarArea,angle,1);
      Line2D line=new Line2D.Double(centre,endPoint);
      g2.setPaint(this.axisLinePaint);
      g2.setStroke(this.axisLineStroke);
      g2.draw(line);
      drawLabel(g2,radarArea,0.0,cat,angle,360.0 / catCount);
    }
    for (int series=0; series < seriesCount; series++) {
      drawRadarPoly(g2,radarArea,centre,info,series,catCount,headH,headW);
    }
  }
 else {
    drawNoDataMessage(g2,area);
  }
  g2.setClip(savedClip);
  g2.setComposite(originalComposite);
  drawOutline(g2,area);
}

Fixed version (ground truth):
/** 
 * Draws the plot on a Java 2D graphics device (such as the screen or a printer).
 * @param g2  the graphics device.
 * @param area  the area within which the plot should be drawn.
 * @param anchor  the anchor point (<code>null</code> permitted).
 * @param parentState  the state from the parent plot, if there is one.
 * @param info  collects info about the drawing.
 */
@Override public void draw(Graphics2D g2,Rectangle2D area,Point2D anchor,PlotState parentState,PlotRenderingInfo info){
  RectangleInsets insets=getInsets();
  insets.trim(area);
  if (info != null) {
    info.setPlotArea(area);
    info.setDataArea(area);
  }
  drawBackground(g2,area);
  drawOutline(g2,area);
  Shape savedClip=g2.getClip();
  g2.clip(area);
  Composite originalComposite=g2.getComposite();
  g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,getForegroundAlpha()));
  if (!DatasetUtilities.isEmptyOrNull(this.dataset)) {
    int seriesCount=0, catCount=0;
    if (this.dataExtractOrder == TableOrder.BY_ROW) {
      seriesCount=this.dataset.getRowCount();
      catCount=this.dataset.getColumnCount();
    }
 else {
      seriesCount=this.dataset.getColumnCount();
      catCount=this.dataset.getRowCount();
    }
    if (this.maxValue == DEFAULT_MAX_VALUE) {
      calculateMaxValue(seriesCount,catCount);
    }
    double gapHorizontal=area.getWidth() * getInteriorGap();
    double gapVertical=area.getHeight() * getInteriorGap();
    double X=area.getX() + gapHorizontal / 2;
    double Y=area.getY() + gapVertical / 2;
    double W=area.getWidth() - gapHorizontal;
    double H=area.getHeight() - gapVertical;
    double headW=area.getWidth() * this.headPercent;
    double headH=area.getHeight() * this.headPercent;
    double min=Math.min(W,H) / 2;
    X=(X + X + W) / 2 - min;
    Y=(Y + Y + H) / 2 - min;
    W=2 * min;
    H=2 * min;
    Point2D centre=new Point2D.Double(X + W / 2,Y + H / 2);
    Rectangle2D radarArea=new Rectangle2D.Double(X,Y,W,H);
    for (int cat=0; cat < catCount; cat++) {
      double angle=getStartAngle() + (getDirection().getFactor() * cat * 360 / catCount);
      Point2D endPoint=getWebPoint(radarArea,angle,1);
      Line2D line=new Line2D.Double(centre,endPoint);
      g2.setPaint(this.axisLinePaint);
      g2.setStroke(this.axisLineStroke);
      g2.draw(line);
      drawLabel(g2,radarArea,0.0,cat,angle,360.0 / catCount);
    }
    for (int series=0; series < seriesCount; series++) {
      drawRadarPoly(g2,radarArea,centre,info,series,catCount,headH,headW);
    }
  }
 else {
    drawNoDataMessage(g2,area);
  }
  g2.setClip(savedClip);
  g2.setComposite(originalComposite);
  drawOutline(g2,area);
}