assertFreshInstance(new TypeToken<Map<String, ?>>() {});
  }

  public void testHashMap() {
    assertFreshInstance(new TypeToken<HashMap<String, ?>>() {});
  }

  public void testLinkedHashMap() {
    assertFreshInstance(new TypeToken<LinkedHashMap<String, ?>>() {});
  }

  public void testTreeMap() {
    assertFreshInstance(new TypeToken<TreeMap<String, ?>>() {});
  }