Check this
final TextBox editTb = new TextBox();
editTb.addStyleName(EDIT_FAV_DELETE_STYLE);
editTb.setText(favoriteBean.getName());
Scheduler.get().scheduleDeferred(new ScheduledCommand() {
@Override
public void execute() {
editFavoriteTb.setFocus(true);
editTb.setCursorPos( favoriteBean.getName().length());
}
});