}

  private static class ParentClassHasConstant extends WithPublicConstant {}

  public static class WithGenericConstant<T> {
    public static final WithGenericConstant<String> STRING_CONSTANT = new WithGenericConstant<>();

    private WithGenericConstant() {}
  }

  public static class WithNullConstant {
    public static final @Nullable WithNullConstant NULL = null;