Org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of ..

Question

Hello,
I try to validate a DOM Document using:
SchemaFactory factory=SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
Source schemaFile=new StreamSource("myschema.xsd");
schema schema=factory.newSchema(schemaFile);
Validator validator=schema.newValidator();
validator.validate(new DOMSource(document));
I don't validate using the parse(File) method, because I already have a DOM Tree in memory.
BUT now I receive the following error:
org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'catalogue'.
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.handleStartElement(Unknown Source)
at org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(Unknown Source)
at org.apache.xerces.jaxp.validation.DOMValidatorHelper.beginNode(Unknown Source)
at org.apache.xerces.jaxp.validation.DOMValidatorHelper.validate(Unknown Source)
at org.apache.xerces.jaxp.validation.DOMValidatorHelper.validate(Unknown Source)
at org.apache.xerces.jaxp.validation.XMLSchemaValidator.validate(Unknown Source)
at javax.xml.validation.Validator.validate(Unknown Source)
catalogue is my rootElement.
I'm using jdk 1.4.
Does somebody know how to solve this?
Thank you!
Katja

Answer 1

extra information
a part of the XSD schema:
<?xml version="1.0" encoding="UTF-8"?><xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">     <xsd:element name="catalogue">    <xsd:complexType>      <xsd:sequence>        <xsd:element ref="date_created"/>        <xsd:element ref="date_modified"/>        <xsd:element ref="comment"/>        <xsd:element ref="books"/>        <xsd:element ref="cds"/>      </xsd:sequence>    </xsd:complexType>  </xsd:element>the code I'll using:
public class DomWriterWithValidation extends AppBo{
     public static void main(String[] args) {
          DocumentBuilderFactory dbFactory=DocumentBuilderFactory.newInstance();
          dbFactory.setNamespaceAware(true);
          final String OUR_SCHEMA="C:/_develop/asja/lib/local/domxmlliblocal/properties/xmlfiles/catalogueBig.xsd";
          SchemaFactory schemaFactory=SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
          try{
               Source schemaFile=new StreamSource(new FileInputStream(OUR_SCHEMA));
               Schema schema=schemaFactory.newSchema(schemaFile);
               Validator validator=schema.newValidator();
               DocumentBuilder domBuilder=dbFactory.newDocumentBuilder();
               File file=new File("C: /xmlfiles/catalogueDOMW1.xml");
               Document document=domBuilder.newDocument();
               Catalogue catalogue=getCatalogue(10,10);
               writeXMLFile(file,catalogue,document,validator);
          }catch (Exception e) {
               e.printStackTrace();
public static void writeXMLFile(File file,Catalogue catalogue,Document document,Validator validator)throws SAXException{
          //1. BUILDING THE DOM TREE
          Element rootElement=document.createElement("catalogue");
          document.appendChild(rootElement);
          Element dateCreated=document.createElement("date_created");
          rootElement.appendChild(cds);
          OutputStream outputstream=null;               
               try{
                    //2. WRITE THE DOM TREE TO AN XML FILE
               TransformerFactory transformerFactory = TransformerFactory.newInstance();
                  Transformer transformer = transformerFactory.newTransformer();
                  transformer.setOutputProperty(OutputKeys.METHOD,"xml");
                  transformer.setOutputProperty(OutputKeys.INDENT,"yes");
                  outputstream=   new FileOutputStream(file.getPath());
                  /*With VALIDATION */
                    validator.validate(new DOMSource(document));
               /*With VALIDATION */
                  transformer.transform(new DOMSource(document), new StreamResult(outputstream));      
          }catch (SAXException saxException){
                    System.out.println("The XML-file you are trying to create is not valid");
                    throw saxException;
          catch(Exception e){
               e.printStackTrace();
          }finally{
               try{
               outputstream.close();
               }catch (IOException ioException){
                    ioException.printStackTrace();
                    throw new RuntimeException(ioException);
}A little part of the valid XML file I want to create:
<?xml version="1.0" encoding="UTF-8"?><catalogue><date_created><day>1</day><month>7</month><year>2008</year></date_created><date_modified><day>1</day><month>7</month><year>2008</year></date_modified>