[dom4j-dev] [ dom4j-Bugs-1495925 ] DOM4J 1.6.1 xml file generation Exception

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Bugs item #1495925, was opened at 2006-05-27 12:27
Message generated for change (Comment added) made by doogiemuc
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Callebaut Beno�t (bencal)
Assigned to: Nobody/Anonymous (nobody)
Summary: DOM4J 1.6.1 xml file generation Exception

Initial Comment:
I use DOM4J 1.6.1 to write a custom build domcument to
an XML file.
It fails with a StringIndexOutOfBoundsException.

If I do the same with DOM4J 1.5.1 I have no problem.

My tree contains a lot of empty elements and use
sometimes stange names (characters like +,-,_)

Here is the code I use to write the XML file:
OutputFormat outformat =
OutputFormat.createPrettyPrint();    
            document.getRootElement().normalize();
            try{
               
((VFSXmlFileObject)this.getRoot()).flushChilds();
                XMLWriter writer = new
XMLWriter(this.getParentLayer().getContent().getOutputStream(false),
outformat); 
                writer.write(this.document);
                writer.flush();
                writer.close();
                document = null;
            }catch (Exception e){
                e.printStackTrace();
            }
Here is the Exception:
java.lang.StringIndexOutOfBoundsException: String index
out of range: 0
    [java]      at java.lang.String.charAt(String.java:558)
    [java]      at
org.dom4j.io.XMLWriter.writeElementContent(XMLWriter.java:1098)
    [java]      at
org.dom4j.io.XMLWriter.writeElement(XMLWriter.java:954)
    [java]      at
org.dom4j.io.XMLWriter.writeNode(XMLWriter.java:1301)
    [java]      at
org.dom4j.io.XMLWriter.writeElementContent(XMLWriter.java:1086)
    [java]      at
org.dom4j.io.XMLWriter.writeElement(XMLWriter.java:954)
    [java]      at
org.dom4j.io.XMLWriter.writeNode(XMLWriter.java:1301)
    [java]      at
org.dom4j.io.XMLWriter.writeElementContent(XMLWriter.java:1086)
    [java]      at
org.dom4j.io.XMLWriter.writeElement(XMLWriter.java:954)
    [java]      at
org.dom4j.io.XMLWriter.writeNode(XMLWriter.java:1301)
    [java]      at
org.dom4j.io.XMLWriter.writeElementContent(XMLWriter.java:1086)
    [java]      at
org.dom4j.io.XMLWriter.writeElement(XMLWriter.java:954)
    [java]      at
org.dom4j.io.XMLWriter.writeNode(XMLWriter.java:1301)
    [java]      at
org.dom4j.io.XMLWriter.writeElementContent(XMLWriter.java:1086)
    [java]      at
org.dom4j.io.XMLWriter.writeElement(XMLWriter.java:954)
    [java]      at
org.dom4j.io.XMLWriter.writeNode(XMLWriter.java:1301)
    [java]      at
org.dom4j.io.XMLWriter.writeElementContent(XMLWriter.java:1086)
    [java]      at
org.dom4j.io.XMLWriter.writeElement(XMLWriter.java:954)
    [java]      at
org.dom4j.io.XMLWriter.writeNode(XMLWriter.java:1301)
    [java]      at
org.dom4j.io.XMLWriter.writeElementContent(XMLWriter.java:1086)
    [java]      at
org.dom4j.io.XMLWriter.writeElement(XMLWriter.java:954)
    [java]      at
org.dom4j.io.XMLWriter.writeNode(XMLWriter.java:1301)
    [java]      at
org.dom4j.io.XMLWriter.write(XMLWriter.java:344)


----------------------------------------------------------------------

Comment By: Robert Rackl (doogiemuc)
Date: 2008-03-02 09:35

Message:
Logged In: YES 
user_id=2024793
Originator: NO

I have a simpler code to reproduce this bug. Its still there:


import java.io.FileWriter;
import java.io.IOException;
import org.dom4j.Document;
import org.dom4j.DocumentFactory;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;

public class Dom4jBug {
    public static void main(String[] args) {
        try {
            Document doc      = DocumentHelper.createDocument();
            Element  rootElem = doc.addElement("root");
            Element propElem  =
DocumentFactory.getInstance().createElement("property");
            propElem.addElement("item");
            propElem.setText("");
            rootElem.add(propElem);
            
            OutputFormat format = OutputFormat.createPrettyPrint();
            XMLWriter writer = new XMLWriter(new FileWriter("test.xml"),
format);
            writer.write(doc);  // <== throws
StringIndexOutOfBoundsException !!!
            writer.close();
        } catch (IOException ex) {
            ex.printStackTrace();
        }

    }
}


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