public SimpleXMLElementValue simplexml_load_string(@NotNull String data,
public SimpleXMLElementValue simplexml_load_string(Env env, @NotNull String data,
  public SimpleXMLElementValue simplexml_load_string(@NotNull String data,                                                     @Optional String className,                                                     @Optional int options)  {    return new SimpleXMLElementValue(data, className, options);  }