XImpl extends InlineBaseImpl implements X { @Override public List<? extends Node> getChildren() { return Collections.emptyList(); } XImpl(Id id);  XImpl(org.w3c.dom.Element element); @Override List<? extends Node> getChildren(); Clone getClone(); CtypePh getCtype(); String getPlainText(); void setClone(Clone clone); void setCtype(CtypePh ctype);  }
@Test public void testGetChildren() { XImpl x = createDefaultX(); assertEquals(new ArrayList<Node>(), x.getChildren()); }