DOCBOOK-APPS: Recursive Reference in XML DTD ??

[Stuart Farnan <stuart at neoworks dot com>]

Hi,

I am having a problem which I describe in detail below, after seeing the
traffic over the last day or so I guess this question is more appropriate on
this mailing list than on the xerces-j list.  Any help anyone could give me
would be greatly appreciated.

I am using:

JDK for Linux (build 1.3.0beta_refresh-b09)
xerces-j v1.2.0

The XML file that is causing problems is listed below.  It references the
public DocBook DTD, which I have not listed here, but is accessible in the
location shown below.  The java code I am running is shown below also.

The class shown compiles fine.  I run it with the command:

$ java SAXWriter ../xml/simplefruitbowl.xml

The out put I get is as follows:

$ java SAXWriter ../xml/simplefruitbowl.xml
Parsing file: ../xml/simplefruitbowl.xml ...
Parse error: Recursive reference "%dbnotn;". (Reference path:
(top-level)-%dbhier;-%dbnotn;-%dbnotn;)
Done

I took a look at the DTD, and the files it includes, and I cant work out why
it thinks there is a recursive reference?  Is this a bug with the parser?
Or am I using it incorrectly?

Thanks in advance.

Stuart

++++++++++++++++++++++++++++++++++++++++++++++++++
 Java Source File
++++++++++++++++++++++++++++++++++++++++++++++++++

import org.xml.sax.XMLReader;
import org.xml.sax.SAXException;

import org.apache.xerces.parsers.SAXParser;

import java.io.IOException;

public class SAXWriter
{
        public static void main(String argv[])
        {
                if (argv.length != 1)
                {
                        System.err.println("Usage: java SAXWriter
[filename]");
                        System.exit(1);
                }
                else
                {
                        String fileName = argv[0];
                        String fileURI = fileName;
                        SAXWriter writer = new SAXWriter(fileURI);
                }

                return;
        }

        public SAXWriter(String fileURI)
        {
                XMLReader parser = new
org.apache.xerces.parsers.SAXParser();

                System.out.println("Parsing file: " + fileURI + " ...");

                try
                {
                        parser.parse(fileURI);
                }
                catch (IOException e)
                {
                        System.err.println("File error: " + e.getMessage());
                }
                catch (SAXException e)
                {
                        System.err.println("Parse error: " +
e.getMessage());
                }

                System.out.println("Done");
        }
}

++++++++++++++++++++++++++++++++++++++++++++++++++

++++++++++++++++++++++++++++++++++++++++++++++++++
 XML File
++++++++++++++++++++++++++++++++++++++++++++++++++

<?xml version="1.0" standalone="no" ?>
<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook V4.1.2//EN"
"http://www.docbook.org/xml/4.1.2/docbookx.dtd">

<article>
        <section label="summary">
                <para>A wooden fruit bowl made in CDT</para>
        </section>
</article>

++++++++++++++++++++++++++++++++++++++++++++++++++