BufferedImage carrega imagem inválida

public static byte[] getBytesFromFile(File file) throws IOException {
        InputStream is = new FileInputStream(file);
    
        // Get the size of the file
        long length = file.length();
    
        if (length > Integer.MAX_VALUE) {
            // File is too large
        }
    
        // Create the byte array to hold the data
        byte[] bytes = new byte[(int)length];
    
        // Read in the bytes
        int offset = 0;
        int numRead = 0;
        while (offset < bytes.length
               && (numRead=is.read(bytes, offset, bytes.length-offset)) >= 0) {
            offset += numRead;
        }
    
        // Ensure all the bytes have been read in
        if (offset < bytes.length) {
            throw new IOException("Could not completely read file "+file.getName());
        }
    
        // Close the input stream and return bytes
        is.close();
        return bytes;
    }

ServletOutputStream oStream = response.getOutputStream();

			BufferedImage image = new BufferedImage(800, 750,
					BufferedImage.TYPE_BYTE_GRAY);
			image.getRaster().setDataElements(0, 0, 800, 750,
					dedoAtual.getImagem());

			image = ImageUtils.resize(image, 369, 346);
			ImageIO.write(image, "jpeg", oStream);