Name: gm110360 Date: 02/26/2004


FULL PRODUCT VERSION :
java version "1.4.1_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_03-b02)
Java HotSpot(TM) Client VM (build 1.4.1_03-b02, mixed mode)


FULL OS VERSION :
SunOS [hostname] 5.7 Generic_106541-11 sun4u sparc SUNW,Ultra-5_10

A DESCRIPTION OF THE PROBLEM :
The parse() method of class javax.xml.parsers.SAXParser is failing to use the resolveEntity() method of its embedded XMLReader object, to resolve a referenced DTD file.
Instead, SAXParser.parse() throws a SAXParseException, indicating "Relative URI "rfml.dtd"; can not be resolved without a base URI."
Among the various JDK's that we test to (AIX, Windows, OS/400, Linux), this bug is unique to the Solaris JDK.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
See executable test case below.
You will also need the following 2 files in your current directory (where you invoke "java SaxTest"):

[ File "testFile.rfml": ]

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE rfml SYSTEM "rfml.dtd">
<rfml version="1.0">
<recordformat name="format1"/>
</rfml>



[ File "rfml.dtd": ]

ELEMENT rfml (recordformat)+
ATTLIST rfml
          version CDATA #FIXED "4.0"


ELEMENT recordformat (data)*
ATTLIST recordformat
          name ID #REQUIRED
          description CDATA #IMPLIED


ELEMENT data EMPTY
ATTLIST data
          name CDATA #REQUIRED
          length CDATA #IMPLIED



EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The testcase should run to successful completion, with the message "The parse succeeded."
ACTUAL -
The testcase fails with a SAXParseException. See "Error Messages" section below.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
$ java SaxTest
org.xml.sax.SAXParseException: Relative URI "rfml.dtd"; can not be resolved without a base URI.
        at org.apache.crimson.parser.Parser2.fatal(Parser2.java:3232)
        at org.apache.crimson.parser.Parser2.fatal(Parser2.java:3226)
        at org.apache.crimson.parser.Parser2.resolveURI(Parser2.java:2808)
        at org.apache.crimson.parser.Parser2.maybeExternalID(Parser2.java:2780)
        at org.apache.crimson.parser.Parser2.maybeDoctypeDecl(Parser2.java:1174)

        at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:523)
        at org.apache.crimson.parser.Parser2.parse(Parser2.java:318)
        at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:442)

        at javax.xml.parsers.SAXParser.parse(SAXParser.java:345)
        at SaxTest.main(SaxTest.java:40)


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.SAXParser;
import org.xml.sax.EntityResolver;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.XMLReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

public class SaxTest extends DefaultHandler implements EntityResolver {

  public SaxTest() {}
  public static void main ( String args[] ) throws Exception {

    String fileName = "testFile.rfml";
    FileInputStream inStream = new FileInputStream(fileName);
    SaxTest tester = new SaxTest();

    SAXParserFactory factory = SAXParserFactory.newInstance();
    factory.setValidating(true);
    factory.setNamespaceAware(false);
    SAXParser parser = factory.newSAXParser();

    try {
      XMLReader reader = parser.getXMLReader();
      reader.setEntityResolver(tester);
      parser.parse(new InputSource(inStream), tester);
      System.out.println("The parse succeeded.");
    }
    catch (SAXException e) {
      e.printStackTrace();
    }

    System.exit(0);
  }

  public InputSource resolveEntity (String publicId, String systemId)
  throws SAXException
  {
    System.out.println("DEBUG RfmlSAXParser.resolveEntity(|"+publicId+"|, |"+systemId+"|)");
    if (systemId != null && systemId.length() > 0)
    {
      int finalSlashPos = systemId.lastIndexOf("/");
      String sysFile;

      if (finalSlashPos == -1) {
        sysFile = systemId;
      }
      else {
        sysFile = systemId.substring(finalSlashPos+1);
      }

      if (sysFile.equals("rfml.dtd"))
      {
        System.out.println("DEBUG RfmlSAXParser.resolveEntity(|"+publicId+"|, |"+systemId+"|) : Returning an InputSource.");
        FileInputStream inStream = null;
        try {
          inStream = new FileInputStream("./rfml.dtd");
        }
        catch (FileNotFoundException e) { e.printStackTrace(); }
        return new InputSource(inStream);
      }
    }

    return super.resolveEntity(publicId, systemId);
  }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Use a different XML parser (e.g. the Xerces parser).
(Incident Review ID: 192267)
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###@###.### 2004-03-03