Xml parse tries to access the internet

Question

Why is this happening and how can I stop this? Thanks.
My code:
        DocumentBuilder htmlBuild = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        logentry = htmlBuild.newDocument();
        sitelog = htmlBuild.parse(this.getClass().getResourceAsStream("sitelog.xml"));If I don't allow it to access the internet, it shows this:
java.io.IOException
at org.apache.crimson.parser.Parser2.fatal(Parser2.java:3339)
at org.apache.crimson.parser.Parser2.externalParameterEntity(Parser2.java:3027)
at org.apache.crimson.parser.Parser2.maybeDoctypeDecl(Parser2.java:1314)
at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:623)
at org.apache.crimson.parser.Parser2.parse(Parser2.java:333)
at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:448)
at org.apache.crimson.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:185)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:76)
at MainPane.logEntry(MainPane.java:127)
at MainPane.<init>(MainPane.java:28)
at SiteLog.<init>(SiteLog.java:18)
at SiteLog.main(SiteLog.java:28)

Answer 1

I would guess that your 'sitelog.xml' file is either...
(1) DTD based and refers to an external DTD definition (the parser is trying to validate the xml file)
(2) Schema based and refers to an external XSD definition (the parser is trying to validate the xml file)
(3) The XML file uses entity includes.
In SAX you could get around (1) and (2) by installing a null EntityResolver. I'm sure you could do the same thing in DOM (but i'm no DOM expert).
Also, you should look at the properties to see if there's a way to turn-off validation etc.