URIResolver called three times for one document() call

[Josh Canfield]

I am using xalan-j_2_3_1 and have created a URIResolver to deal with my
special paths. When document() is called with a trailing element name
the uri is resolved 3 times. It seems like a bug, but maybe I am just
missing something? I have been working with xalan for only the last
couple of days. I have searched the mailing list archives and xalan site
and have found very little that actually discusses the URIResolver. If
there is another place to look for information I would appreciate
knowing about it. 

Here is the code for a test app that demonstrates this behavior.

/****************/
import java.io.*;
import javax.xml.transform.*;
import javax.xml.transform.stream.*;

public class test {
  static public void main(String[] args) {
System.out.println("XALAN XSLT TEST");

    try {
      // Create xsl source
      StreamSource xslSource = new StreamSource(new File(args[0]));
      // Create xml source
      StreamSource xmlSource = new StreamSource(new File(args[1]));

      // Create transformer
      TransformerFactory tFactory = TransformerFactory.newInstance();
      /// output the xslt
      Transformer transformer = tFactory.newTransformer(xslSource);
      transformer.setURIResolver(new myURIResolver());

System.out.println("Transform");
      transformer.transform(xmlSource, new StreamResult(new
File("output.xml")));
    } catch ( Exception e ) {
        e.printStackTrace();
    }
System.out.println("\nDONE");
  }
        
  public static class myURIResolver implements URIResolver {
  // URIReslover
    public Source resolve(String href, String base) 
    throws TransformerException {
      if ( !href.startsWith("hps://") ) 
        return null;
      System.out.println("got href: '" + href + "' base: '" + base +
"'");
      StreamSource source = 
        new StreamSource(
            new StringReader(
                 "<root><element>static value</element></root>")
        );
      return source;
    }
  }
}
/****************/

Here is the stylesheet:

/****************/
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="1.0">

<xsl:template match="/">
    <xsl:value-of
select="document('hps://my/path/goes/here')/elementname"/>
</xsl:template>

</xsl:stylesheet>
/****************/

Here is the console output:

/****************/
XALAN XSLT TEST
Transform
got href: 'hps://my/path/goes/here' base: 'null'
got href: 'hps://my/path/goes/here' base: 'null'
got href: 'hps://my/path/goes/here' base: 'null'

DONE
/****************/

Thanks,
Josh Canfield