Is this TabBar behavior by design?

[beckyo]

SmartGWT 4.1d LDPL 2013-11-07

This didn't work...

Public MyClass extends Layout
{
  TabSet tabs = new TabSet();
  TabBar tabBarForSkinning = new TabBar();

  public MyClass()
  {
      tabBarForSkinning.setStyleName("xxxx");
      tabs.setTabBarProperties(tabBarForSkinning);
  }
}

But this did....

Public MyClass extends Layout
{
  TabSet tabs = new TabSet();

  @Override
  protected void onDraw()
  {
     TabBar test = tabs.getTabBar();
     test.setStyleName("xxxx");
  }
}

By design, or a bug? :)
-B