title: Must an XML namespace name URI be retrievable?
body: <p>I have the following tags on my WSDL:</p>
  
  <pre><code>&lt;?xml version='1.0' encoding='UTF-8'?&gt;
  &lt;definitions name="" targetNamespace="http://xxxxx/ws"
               xmlns="http://schemas.xmlsoap.org/wsdl/"
               xmlns:s0="http://xxxxx/ws"
               xmlns:s1="http://schemas.xmlsoap.org/wsdl/soap/"&gt;
    &lt;types&gt;
      &lt;xsd:schema attributeFormDefault="qualified" 
                  elementFormDefault="qualified"
                  targetNamespace="http://xxxxx/ws/comments" 
                  xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" 
                  xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" 
                  xmlns:s0="http://xxxxx/ws" 
                  xmlns:s1="http://schemas.xmlsoap.org/wsdl/soap/" 
                  xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" 
                  xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" 
                  xmlns:tns="http://xxxxx/ws" 
                  xmlns:tnsc="http://xxxxx/ws/comments" 
                  xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
                  xmlns:y="http://new.webservice.namespace"&gt;
  </code></pre>
  
  <p>The types are thereafter qualified to a be in the s0,s1... namespaces. </p>
  
  <p>The question is whether the namespace end-point(="http://xxxxx/ws") needs to be a valid url?<br>
  If the endpoint no longer exists - does it mean that we need to re-generate the stub proxy for the Web Service again?  </p>
  
  <p><strong>Note</strong>: The endpoint of the Web Service itself is different from that of the namespaces and does still exist.</p>