xml external schema validator

[Kiran Bhumana <kB...@SeeBeyond.com>]

 
Sorry this question might have been asked before. 
 
I want to validate a wsdl file. And this is the file I have.
 
<definitions targetNamespace="urn:echo:echoService"
             xmlns:tns="urn:echo:echoService"
 
xmlns:slt="http://schemas.xmlsoap.org/ws/2002/07/service-link/"
             xmlns:xsd="http://www.w3.org/2001/XMLSchema"
             xmlns="http://schemas.xmlsoap.org/wsdl/">
 
   <message name="StringMessageType">
      <part name="echoString" type="xsd:string"/>
   </message>
.....
 
</definitions>
 
I am using a SAX parser and have set the following, 
 
 
parser.setFeature("http://xml.org/sax/features/validation"
                                          , true);
                parser.setFeature(
"http://xml.org/sax/features/namespaces",true);
                parser.setFeature(
"http://apache.org/xml/features/validation/schema",true);
 
parser.setFeature("http://apache.org/xml/features/validation/schema-full
-checking", true);
 
 
parser.setProperty("http://apache.org/xml/properties/schema/external-sch
emaLocation", "http://schemas.xmlsoap.org/wsdl wsdl.xsd");
 
and it says 
cvc-elt.1: Cannot find the declaration of element 'definitions'.
 
What is it that could be wrong ?
 
Thanks,
Kiran