Recuperar Imagem redimensionada no java

1. public class ImageUtils {
3.     private static BufferedImage scale(BufferedImage img, int type, int dimencao, boolean higherQuality) {
4.         BufferedImage ret = img;
5.         int w, h;
6.         if (higherQuality) {
7.             // Use multi-step technique: start with original size, then
8.             // scale down in multiple passes with drawImage()
9.             // until the target size is reached
10.             w = img.getWidth();
11.             h = img.getHeight();
12.         } else {
13.             // Use one-step technique: scale directly from original
14.             // size to target size with a single drawImage() call
15.             w = dimencao;
16.             h = dimencao;
17.         }
18.         Graphics2D graphics = null;
19.         BufferedImage tmp = null;
20.         if (higherQuality) {
21.             if (w >= h) {
22.                 h = h * dimencao / w;
23.                 w = dimencao;
24.             } else {
25.                 w = w * dimencao / h;
26.                 h = dimencao;
27.             }
28.         }
29.         tmp = new BufferedImage(w, h, type);
30.         graphics = tmp.createGraphics();
31.         graphics.setComposite(AlphaComposite.Src);
32.         graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
33.         graphics.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
34.         graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
35.         graphics.drawImage(ret, 0, 0, w, h, null);
36.         graphics.dispose();
37.         ret = tmp;
38.         return ret;
39.     }
41.     public static byte[] getScaledImage(File file, int dimensao) {
42.         byte[] result = null;
43.         try {
44.             BufferedImage image = ImageIO.read(file);
45.             BufferedImage thumbs = ImageFileUtils.scale(image, BufferedImage.TYPE_INT_RGB, dimensao, true);
46.             ByteArrayOutputStream baos = new ByteArrayOutputStream();
47.             ImageIO.write(thumbs, FilenameUtils.getExtension(file.getName()), baos);
48. //            ImageIO.write(image, FilenameUtils.getExtension(file.getName()), baos);
49.             result = baos.toByteArray();
50.         } catch (FileNotFoundException fnfe) {
51.             logger.debug(fnfe == null ? "Imagem não localizada" : fnfe.getMessage());
52.         } catch (Exception ex) {
53.             logger.debug(ex == null ? ">>> erro ao atualizar o Outputstream do response." : ex.getMessage());
54.         }
55.         return result;
56.     }
57. }

Criar um Xstream que ignora atributos desconhecidos

public XStream getXStream() {
  XStream xstream = new XStream() {
    @Override
    protected MapperWrapper wrapMapper(MapperWrapper next) {
      return new MapperWrapper(next) {
        @Override
        public boolean shouldSerializeMember(Class definedIn, String fieldName) {
          if (definedIn == Object.class) {
            return false;
          }
          return super.shouldSerializeMember(definedIn, fieldName);
        }
      };
    }
  };
  return xstream;
}

Tratamento de erros no plsql - oracle

BEGIN
  insert
  commit;
  EXCEPTION
    WHEN OTHERS THEN
      rollback;
END;