Re: How to debug SAX?

From: Chris (nospam_at_nospam.com)
Date: 07/10/04

  • Next message: mike: "IllegalAccessException on public method" 
    Date: Sat, 10 Jul 2004 13:40:42 -0500

    > I have an application that reads XML-data from a network stream. Some-
    > times I get exceptions like this one (catch prints it):
    > SAXParEx: org.xml.sax.SAXParseException: Document root element is missing.
    > Document root element is missing.
    >
    > I have a test application that just connects to the stream and prints
    > the results. There the XML looks OK. Is there a way to see what the
    > parser got presented and what causes the exception?

    Debugging SAX is tricky. You can look at the embedded exception to get a
    clue:

    } catch (SAXException sax) {
      Exception embed = sax.getException();
      embed.printStackTrace();
    }

    The other thing to do is see if you can get *any* XML to parse. If you can,
    then systematically remove elements from your problem XML file until it
    works.

    One problem that I had recently is that a problem file had some UTF-8
    byte-order marks at the beginning of the file, before the first tag. This
    cause a "root element missing" error.

  • Next message: mike: "IllegalAccessException on public method"

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