JTableのセルにJProgressBarを表示

class ProgressRenderer extends DefaultTableCellRenderer {
  private final JProgressBar b = new JProgressBar(0, 100);
  public ProgressRenderer() {
    super();
    setOpaque(true);
    b.setBorder(BorderFactory.createEmptyBorder(1, 1, 1, 1));
  }

  @Override public Component getTableCellRendererComponent(
      JTable table, Object value,
      boolean isSelected, boolean hasFocus, int row, int column) {
    Integer i = (Integer) value;
    String text = "Done";
    if (i < 0) {
      text = "Canceled";
    } else if (i < 100) {
      b.setValue(i);
      return b;
    }
    super.getTableCellRendererComponent(
      table, text, isSelected, hasFocus, row, column);
    return this;
  }
}

private final Executor executor = Executors.newCachedThreadPool();
// ...
int rowNumber = model.getRowCount();
SwingWorker<Integer, Integer> worker = new SwingWorker<Integer, Integer>() {
  private int rndSleep = new Random().nextInt(100) + 1;
  private int lengthOfTask = 120;
  @Override protected Integer doInBackground() {
    int current = 0;
    while (current < lengthOfTask && !isCancelled()) {
      current++;
      try {
        Thread.sleep(rndSleep);
      } catch (InterruptedException ie) {
        publish(-1);
        break;
      }
      publish(100 * current / lengthOfTask);
    }
    return rndSleep * lengthOfTask;
  }

  @Override protected void process(List<Integer> chunks) {
    for (Integer value: chunks) {
      model.setValueAt(value, rowNumber, 2);
    }
    // model.fireTableCellUpdated(rowNumber, 2);
  }

  @Override protected void done() {
    String text = null;
    int i = -1;
    if (isCancelled()) {
      text = "Canceled";
    } else {
      try {
        i = get();
        text = "Done";
      } catch (Exception ignore) {
        ignore.printStackTrace();
        text = ignore.getMessage();
      }
    }
    System.out.println(rowNumber + ":" + text + "(" + i + "ms)");
  }
};
model.addTest(new Test("example", 0), worker);
executor.execute(worker); // 1.6.0_18
// worker.execute(); //1.6.0_21