public void testScrollbarsDontGetRemovedOnRemoveAll() throws Exception {
    panel.addVerticalScrollBar();
    panel.addHorizontalScrollBar();
    panel.add(new PropPanel(new MockProp()));

    panel.removeAll();

    assertEquals(2, panel.children.size());
    assertEquals(panel.getVerticalScrollbar(), panel.children.get(0));
    assertEquals(panel.getHorizontalScrollbar(), panel.children.get(1));
  }