listBox.addItem(c.Nothing(),"0");
listBox.addItem(c.Error(),"1");
listBox.addItem(c.Warning(),"2");
listBox.addItem(c.Output(),"3");
listBox.addItem(c.Detail(),"4");
listBox.addItem(c.Debug(),"5"); // give up extra space between 4 and 9 for coding convenience here.
listBox.setVisibleItemCount(1);
// flexTable.setWidget(0, 1, listBox);
listBox.addChangeListener(new ChangeListener() {
public void onChange(final Widget sender) {