Program: 61897
Project: 61897
Buggy source:
@Override public void export(){
  List<SHAPERECORD> records=shape.shapeRecords;
  String key="String_Node_Str" + records.hashCode() + "String_Node_Str"+ (defaultColor == null ? "String_Node_Str" : defaultColor.hashCode());
  if (cache.contains(key)) {
    image=(BufferedImage)cache.get(key);
    return;
  }
  RECT bounds=SHAPERECORD.getBounds(records);
  int maxLineWidthTwips=0;
  if (shape instanceof SHAPEWITHSTYLE) {
    SHAPEWITHSTYLE shapeWithStyle=(SHAPEWITHSTYLE)shape;
    for (    LINESTYLE lineStyle : shapeWithStyle.lineStyles.lineStyles) {
      if (lineStyle.width > maxLineWidthTwips) {
        maxLineWidthTwips=lineStyle.width;
      }
    }
  }
  double maxLineWidth=maxLineWidthTwips / unitDivisor / 2;
  xMin=bounds.Xmin / unitDivisor - maxLineWidth;
  yMin=bounds.Ymin / unitDivisor - maxLineWidth;
  image=new BufferedImage((int)(bounds.getWidth() / unitDivisor + 2 + maxLineWidth),(int)(bounds.getHeight() / unitDivisor + 2 + maxLineWidth),BufferedImage.TYPE_INT_ARGB);
  graphics=(Graphics2D)image.getGraphics();
  graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
  graphics.setRenderingHint(RenderingHints.KEY_RENDERING,RenderingHints.VALUE_RENDER_QUALITY);
  graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
  defaultStroke=graphics.getStroke();
  super.export();
  if (putToCache) {
    cache.put(key,image);
  }
}

Fixed version (ground truth):
@Override public void export(){
  List<SHAPERECORD> records=shape.shapeRecords;
  String key="String_Node_Str" + records.hashCode() + "String_Node_Str"+ (defaultColor == null ? "String_Node_Str" : defaultColor.hashCode());
  if (cache.contains(key)) {
    image=(SerializableImage)cache.get(key);
    deltaX=(double)cacheDeltaX.get(key);
    deltaY=(double)cacheDeltaY.get(key);
    return;
  }
  RECT bounds=SHAPERECORD.getBounds(records);
  int maxLineWidthTwips=0;
  if (shape instanceof SHAPEWITHSTYLE) {
    SHAPEWITHSTYLE shapeWithStyle=(SHAPEWITHSTYLE)shape;
    for (    LINESTYLE lineStyle : shapeWithStyle.lineStyles.lineStyles) {
      if (lineStyle.width > maxLineWidthTwips) {
        maxLineWidthTwips=lineStyle.width;
      }
    }
  }
  double maxLineWidth=maxLineWidthTwips / unitDivisor / 2;
  deltaX=bounds.Xmin / unitDivisor - maxLineWidth;
  deltaY=bounds.Ymin / unitDivisor - maxLineWidth;
  image=new SerializableImage((int)(bounds.getWidth() / unitDivisor + 2 + maxLineWidth),(int)(bounds.getHeight() / unitDivisor + 2 + maxLineWidth),SerializableImage.TYPE_INT_ARGB);
  graphics=(Graphics2D)image.getGraphics();
  graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION,RenderingHints.VALUE_INTERPOLATION_BILINEAR);
  graphics.setRenderingHint(RenderingHints.KEY_RENDERING,RenderingHints.VALUE_RENDER_QUALITY);
  graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
  defaultStroke=graphics.getStroke();
  super.export();
  try {
    ImageIO.write(image.getBufferedImage(),"String_Node_Str",new File("String_Node_Str" + imageid++ + "String_Node_Str"));
  }
 catch (  IOException ex) {
    Logger.getLogger(BitmapExporter.class.getName()).log(Level.SEVERE,null,ex);
  }
  if (putToCache) {
    cache.put(key,image);
    cacheDeltaX.put(key,deltaX);
    cacheDeltaY.put(key,deltaY);
  }
}