DOMException while accessing child SOAPElement's

Question

I've implemented a servlet that receives SOAP messages and processes them. When I try to use SOAPElement's getChildElements(Name name) method, calling i.next() on the Iterator throws a DOMException. Here's the code:
public static String testGetValue(SOAPElement parent, Name name)
    Iterator i = parent.getChildElements(name);
    for (; i.hasNext();)
        Object obj = i.next();
    return "Success";
}And the exception that's thrown:
org.w3c.dom.DOMException: NAMESPACE_ERR: An attempt is made to create or change
an object in a way which is incorrect with regard to namespaces.
at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.checkDOMNSErr
(CoreDocumentImpl.java:2348)
at com.sun.org.apache.xerces.internal.dom.AttrNSImpl.setName(AttrNSImpl.
java:151)
at com.sun.org.apache.xerces.internal.dom.AttrNSImpl.<init>(AttrNSImpl.j
ava:112)
at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.createAttribu
teNS(CoreDocumentImpl.java:1959)
at com.sun.xml.messaging.saaj.soap.SOAPDocumentImpl.createAttributeNS(SO
APDocumentImpl.java:142)
at com.sun.org.apache.xerces.internal.dom.ElementImpl.setAttributeNS(Ele
mentImpl.java:680)
at com.sun.xml.messaging.saaj.soap.impl.ElementImpl.addAttributeBare(Ele
mentImpl.java:298)
at com.sun.xml.messaging.saaj.soap.impl.ElementImpl.replaceElementWithSO
APElement(ElementImpl.java:432)
at com.sun.xml.messaging.saaj.soap.impl.HeaderImpl.convertToSoapElement(
HeaderImpl.java:178)
at com.sun.xml.messaging.saaj.soap.impl.ElementImpl$5.next(ElementImpl.j
ava:864)
at com.sun.xml.messaging.saaj.soap.impl.ElementImpl$2.hasNext(ElementImp
l.java:458)
at com.sun.xml.messaging.saaj.soap.impl.ElementImpl$3.hasNext(ElementImp
l.java:496)
at com.softprotech.ers.servlets.SAAJServlet.testGetValue(SAAJServlet.jav
a:90)
The Name object has the right namespace and namespace URI specified, because I can get the value using DOM and a qualified element name. For example, if the namespace "wsa" is "http://schemas.xmlsoap.org/ws/2004/03/addressing" and the element is "Address", then I can get to DOM nodes by calling
NodeList nodes = element.getElementsByTagName("wsa:Address");but I cannot get the SOAP elements by calling
Name name = envelope.createName("Action", "wsa", "http://schemas.xmlsoap.org/ws/2004/03/addressing");
Iterator i = parent.getChildElements(name);
Object obj = i.next();Does anybody have a clue why a call to the Iterator would throw such an exception? Thanks in advance for any insight.

Answer 1

I have no issues getting child table information using the APIs... I am doing it on both 9.0.1.X versions and 9.0.3.X versions. I would suggest looking at how you are getting the process keys.. (i.e., are you mapping it in through the adapter, getting it from findObjects, etc)... and also look at your configuration of the child tables and make sure everything is active and kosher.
If you post the rest of your code, I might be able to help you.
Cheers,
Deborah