Program: 170399
Project: 170399
Buggy source:
static PlanarImage createScaledImage(PlanarImage sourceImage,S2SpatialResolution resolution,int level){
  int sourceWidth=sourceImage.getWidth();
  int sourceHeight=sourceImage.getHeight();
  int targetWidth=getSizeAtResolutionLevel(L1C_TILE_LAYOUTS[0].width,level);
  int targetHeight=getSizeAtResolutionLevel(L1C_TILE_LAYOUTS[0].height,level);
  float scaleX=resolution.resolution / (float)S2SpatialResolution.R10M.resolution;
  float scaleY=resolution.resolution / (float)S2SpatialResolution.R10M.resolution;
  final Dimension tileDim=getTileDim(targetWidth,targetHeight);
  ImageLayout imageLayout=new ImageLayout();
  imageLayout.setTileWidth(tileDim.width);
  imageLayout.setTileHeight(tileDim.height);
  RenderingHints renderingHints=new RenderingHints(JAI.KEY_BORDER_EXTENDER,BorderExtender.createInstance(BorderExtender.BORDER_ZERO));
  renderingHints.put(JAI.KEY_IMAGE_LAYOUT,imageLayout);
  RenderedOp scaledImage=ScaleDescriptor.create(sourceImage,scaleX,scaleY,sourceImage.getMinX() - sourceImage.getMinX() * scaleX,sourceImage.getMinY() - sourceImage.getMinY() * scaleY,Interpolation.getInstance(Interpolation.INTERP_NEAREST),renderingHints);
  if (scaledImage.getWidth() != targetWidth || scaledImage.getHeight() != targetHeight) {
    return CropDescriptor.create(scaledImage,(float)sourceImage.getMinX(),(float)sourceImage.getMinY(),(float)targetWidth,(float)targetHeight,null);
  }
 else {
    return scaledImage;
  }
}

Fixed version (ground truth):
static PlanarImage createScaledImage(PlanarImage sourceImage,S2SpatialResolution resolution,int level){
  int sourceWidth=sourceImage.getWidth();
  int sourceHeight=sourceImage.getHeight();
  int targetWidth=getSizeAtResolutionLevel(L1C_TILE_LAYOUTS[0].width,level);
  int targetHeight=getSizeAtResolutionLevel(L1C_TILE_LAYOUTS[0].height,level);
  float scaleX=resolution.resolution / (float)S2SpatialResolution.R10M.resolution;
  float scaleY=resolution.resolution / (float)S2SpatialResolution.R10M.resolution;
  final Dimension tileDim=getTileDim(targetWidth,targetHeight);
  ImageLayout imageLayout=new ImageLayout();
  imageLayout.setTileWidth(tileDim.width);
  imageLayout.setTileHeight(tileDim.height);
  BorderExtender borderExtender=BorderExtender.createInstance(BorderExtender.BORDER_ZERO);
  RenderingHints renderingHints=new RenderingHints(JAI.KEY_BORDER_EXTENDER,borderExtender);
  renderingHints.put(JAI.KEY_IMAGE_LAYOUT,imageLayout);
  RenderedOp scaledImage=ScaleDescriptor.create(sourceImage,scaleX,scaleY,sourceImage.getMinX() - sourceImage.getMinX() * scaleX,sourceImage.getMinY() - sourceImage.getMinY() * scaleY,Interpolation.getInstance(Interpolation.INTERP_NEAREST),renderingHints);
  if (scaledImage.getWidth() == targetWidth && scaledImage.getHeight() == targetHeight) {
    return scaledImage;
  }
 else   if (scaledImage.getWidth() >= targetWidth && scaledImage.getHeight() >= targetHeight) {
    return CropDescriptor.create(scaledImage,(float)sourceImage.getMinX(),(float)sourceImage.getMinY(),(float)targetWidth,(float)targetHeight,null);
  }
 else   if (scaledImage.getWidth() <= targetWidth && scaledImage.getHeight() <= targetHeight) {
    int rightPad=targetWidth - scaledImage.getWidth();
    int bottomPad=targetHeight - scaledImage.getHeight();
    return BorderDescriptor.create(scaledImage,0,rightPad,0,bottomPad,borderExtender,null);
  }
 else {
    throw new IllegalStateException();
  }
}