JTableのセルにAnimated GIFを表示する

ImageIcon icon = new ImageIcon(url);
// Wastefulness: icon.setImageObserver((ImageObserver) table);
icon.setImageObserver(new ImageObserver() {
  // @see http://www2.gol.com/users/tame/swing/examples/SwingExamples.html
  @Override public boolean imageUpdate(
      Image img, int infoflags, int x, int y, int w, int h) {
    // @see javax.swing.JLabel#imageUpdate(...)
    if (!table.isShowing()) {
      return false;
    }
    // @see java.awt.Component#imageUpdate(...)
    if ((infoflags & (FRAMEBITS|ALLBITS)) != 0) {
      int vr = table.convertRowIndexToView(row); // JDK 1.6.0
      int vc = table.convertColumnIndexToView(col);
      table.repaint(table.getCellRect(vr, vc, false));
    }
    return (infoflags & (ALLBITS | ABORT)) == 0;
  };
});