public void testRootNameAccess() throws Exception {
    AnnotationIntrospector ai = new JaxbAnnotationIntrospector(TypeFactory.defaultInstance());
    // If no @XmlRootElement, should get null (unless pkg has etc)
    assertNull(ai.findRootName(AnnotatedClass.construct(SimpleBean.class, ai, null)));
    // With @XmlRootElement, but no name, empty String
    PropertyName rootName =
        ai.findRootName(AnnotatedClass.construct(NamespaceBean.class, ai, null));
    assertNotNull(rootName);
    assertEquals("", rootName.getSimpleName());
    assertEquals("urn:class", rootName.getNamespace());

    // and otherwise explicit name
    rootName = ai.findRootName(AnnotatedClass.construct(RootNameBean.class, ai, null));
    assertNotNull(rootName);
    assertEquals("test", rootName.getSimpleName());
    assertNull(rootName.getNamespace());
  }