I'm getting a "org.xml.sax.SAXParseException; lineNumber: 4; columnNumber: 26; The entity "ldquo" was referenced, but not declared." exception when reading an XML document. I'm reading it as follows:

```
                DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
                DocumentBuilder builder = factory.newDocumentBuilder();
                InputSource is = new InputSource(new StringReader(xmlBody));
                Document document = builder.parse(is);

```

And then there's an exception on builder.parse(is);
From searching I figured that it is necessary to declare some of those new entities externally, unfortunately, I cannot modify the original XML document.

How do I fix this problem?

Thanks