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  1. JDK
  2. JDK-4395782

Merlin XML classes don't recognize entities correctly

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P2
    • Resolution: Fixed
    • Affects Version/s: 1.4.1
    • Fix Version/s: 1.1
    • Component/s: xml
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      1.1fcs
    • CPU:
      sparc
    • OS:
      solaris_8
    • Verification:
      Verified

      Description

      In JAXP1.0.1 any entities became nodes with type ENTITY_REFERENCE_NODE.

      In Merlin (which has some classes/packages of the same name as JAXP
      classes) the entities become part of the surrounding text node.

      This makes it impossible to interpret entities in any special way
      (as my application does; it wants to substitute various values into
      output text for the entities, values that are other than what the
      DTD declares the entity value to be; I can explain this in more
      detail to anybody that's interested, it's a real interesting app).

      The following example doesn't demonstrate what my application does,
      but it does illustrate the difference between JAXP 1.0.1 and Merlin.
      The enclosed application contains a simple tree dumper routine to
      display the DOM tree contents.

      Given this XML input
      ====================
      <?xml version="1.0" encoding="UTF-8"?>
      <!DOCTYPE doc SYSTEM 'test.dtd'>
      <doc>
        <p>This is some text and an &entity; and more text</p>
        &entity;
        &entity;text
      </doc>

      And the DTD
      ===========
      <!ELEMENT doc (#PCDATA)>
      <!ELEMENT p (#PCDATA)>
      <!ENTITY entity "entity-ref">

      JAXP 1.0.1 outputs
      ==================
      % /usr/local/java/jdk1.3/solaris/bin/java -classpath .:/home/dherron/work/jaxp1.0.1/jaxp.jar:/home/dherron/work/jaxp1.0.1/parser.jar EntityBug test.xml
      name=doc; type=1; value=null
          name=#text; type=3; value=
        
          name=p; type=1; value=null
              name=#text; type=3; value=This is some text and an
              name=entity; type=5; value=null
                  name=#text; type=3; value=entity-ref
              name=#text; type=3; value= and more text
          name=#text; type=3; value=
        
          name=entity; type=5; value=null
              name=#text; type=3; value=entity-ref
          name=#text; type=3; value=
        
          name=entity; type=5; value=null
              name=#text; type=3; value=entity-ref
          name=#text; type=3; value=text

      Merlin output
      =============
      java EntityBug test.xml
      name=doc; type=1; value=null
          name=#text; type=3; value=
        
          name=p; type=1; value=null
              name=#text; type=3; value=This is some text and an entity-ref and more text
          name=#text; type=3; value=
        entity-ref
        entity-reftext


      Source code
      ===========

      import org.w3c.dom.*;
      //import javax.xml.parsers.*;
      import java.io.File;

      import javax.xml.parsers.DocumentBuilderFactory;
      import javax.xml.parsers.FactoryConfigurationError;
      import javax.xml.parsers.ParserConfigurationException;
      import javax.xml.parsers.DocumentBuilder;

      public class EntityBug {

        String fn;

        DocumentBuilderFactory factory = null;
        DocumentBuilder builder = null;
        Document document = null;

        public EntityBug(String fn) {
          this.fn = fn;
          factory = DocumentBuilderFactory.newInstance();
          try {
            builder = factory.newDocumentBuilder();
            document = builder.parse( new File(fn) );
            dumpTree(document.getDocumentElement());
          } catch (Exception e) {
            System.out.println(e.toString());
            e.printStackTrace();
          }
        }

        // dumpTree - pretty-print dump of an XML tree.

        void dumpTree(Node n) { dumpTree(n, 0); }

        void dumpTree(Node n, int indent) {
          if (n == null) { System.out.println("dumptree null node\n"); return; }
          for (; n != null; n = n.getNextSibling()) {
            // indent for this node
            for (int i = 0; i < indent; i++) System.out.print(" ");
            // print info on this node
            System.out.println("name=" + n.getNodeName() +
      "; type=" + Short.toString(n.getNodeType()) +
      "; value=" + n.getNodeValue());
            // if any children, recurse
            Node n2 = n.getFirstChild();
            if (n2 != null) dumpTree(n2, indent + 4);
          }
        }
          
        public static void main(String args[]) {
          new EntityBug(args[0]);
        }

      }

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            • Assignee:
              egoei Edwin Goei (Inactive)
              Reporter:
              dherronsunw David Herron (Inactive)
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                Updated:
                Resolved:
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