我使用javax.xml.validation.validator验证我的xml，如下所示

private final Validator validator;
        ...
        SchemaFactory factory = SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");
        factory.setProperty(XMLConstants.ACCESS_EXTERNAL_DTD, "");
        factory.setProperty(XMLConstants.ACCESS_EXTERNAL_SCHEMA, "");
        Schema schema = factory.newSchema(new File(getResource(path)));
        validator = schema.newValidator();
        validator.setProperty(XMLConstants.ACCESS_EXTERNAL_DTD, "");
        validator.setProperty(XMLConstants.ACCESS_EXTERNAL_SCHEMA, "");

你知道为什么声纳说这个代码不符合吗？