Java EE (Java Enterprise Edition) General Discussion

Hi all,

I am trying to run an application which uses XML and Java. It works fine with JRE 1.4.2. but when i try to use it on a machine with java 1.5, it throws the following exception:
here is the trace:


Exception while parsing XML: org.xml.sax.SAXParseException: Content is not allowed in prolog.
org.xml.sax.SAXParseException: Content is not allowed in prolog.
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDispatcher.dispatch(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at webadmin.XmlUtils.readDocumentFromString(XmlUtils.java:76)
at webadmin.XmlUtils.getRootName(XmlUtils.java:188)
at webadmin.messageHandler.procMessageFromServer(messageHandler.java:231)
at webadmin.messageHandler.access$100(messageHandler.java:30)
at webadmin.messageHandler$1.run(messageHandler.java:86)


the code snippet that throws the exception is as follows:

public static Document readDocumentFromString(String xmlData) throws SAXException
{
DocumentBuilderFactory dbf = null;
DocumentBuilder db = null;
org.w3c.dom.Document d = null;

try
{
dbf = DocumentBuilderFactory.newInstance();
// this determines if the parser is a validating parser or not.
// dbf.setValidating(true);
dbf.setValidating(true);
dbf.setFeature(javax.xml.XMLConstants.FEATURE_SECURE_PROCESSING,true);

db = dbf.newDocumentBuilder();
db.setErrorHandler(new org.xml.sax.helpers.DefaultHandler());
System.out.println("erroneous Messege:"+xmlData);
d = db.parse(new InputSource(new StringReader(xmlData)));
}
catch(FactoryConfigurationError e)
{
e.printStackTrace();
}
catch (ParserConfigurationException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}

return d;
}

any help would be highly appreciated.

Thanks
Amit