Как визуализировать изображения Processing.org на сервлете Java?

Мой скала код: я

class Image extends PApplet {
  override def setup {
    size(200,200)
    background(0)
  }

  override def draw {
    stroke(255)
    line(10,10,50,50)
  }

  def renderImage = g.getImage

}


class ImageServlet extends HttpServlet {
  override def doGet(request: HttpServletRequest, response: HttpServletResponse) {

    response.setContentType("image/gif")

    val os: OutputStream = response.getOutputStream
    val image = new Image

    javax.imageio.ImageIO.write(image.renderImage.asInstanceOf[RenderedImage],"GIF86", os);

  }
}