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https://issues.apache.org/jira/browse/AXIS2-5786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15330775#comment-15330775
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Andreas Veithen commented on AXIS2-5786:
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That's probably one of the cases envisaged in AXIOM-376.
> MessageContextBuilder - createFaultEnvelope - FaultCode with "soapenv" prefix
> and different namespace from envelope causes error
> --------------------------------------------------------------------------------------------------------------------------------
>
> Key: AXIS2-5786
> URL: https://issues.apache.org/jira/browse/AXIS2-5786
> Project: Axis2
> Issue Type: Bug
> Components: kernel
> Affects Versions: 1.7.3
> Reporter: Jeff Thomas
> Fix For: 1.7.4, 1.8.0
>
>
> I have encountered a problem in
> MessageContextBuilder.createFaultEnvelope(MessageContext, Throwable) where
> the throwable is an AxisFault with the default SOAP namespace prefix but a
> *different* namespace-URI than the envelope itself. For example, including a
> fault-code with a SOAP 1.2 namespace in a SOAP 1.1 envelope or a fault-code
> SOAP 1.1 namespace in a SOAP 1.2 envelope.
> The result in at least the first case is the following error:
> "A Soap envelope with fault action
> -http://www.w3.org/2005/08/addressing/soap/fault has been received without a
> fault element in the soap body"
> The precondition is that the fault code content has the same namespace prefix
> as the SOAP element being created.
> {code:xml}
> <faultcode>soapenv:Receiver</faultcode>
> {code}
> The cause of the error is that the prefix within the fault code is used to
> declare a namespace on the "soapenv:Fault" element. This results in two
> different namespace URIs being declared with the same prefix:
> {code:xml}
> <?xml version='1.0' encoding='utf-8'?>
> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";>
> <soapenv:Header/>
> <soapenv:Body>
> <soapenv:Fault xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope";>
> <faultcode>soapenv:Receiver</faultcode>
> <faultstring>Hello World!</faultstring>
> </soapenv:Fault>
> </soapenv:Body>
> </soapenv:Envelope>
> {code}
> During debugging you can clearly see the problem with the double prefix:
> {code:xml}
> <soapenv:Fault xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";
> xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope";>
> <faultcode>soapenv:Receiver</faultcode>
> <faultstring>General error in function getStructure.</faultstring>
> </soapenv:Fault>
> {code}
> *The real problem is most-likely in Axiom OMElement implementation.*(???).
> The OMElement declareNamespace method does not check if the given prefix is
> identical to that of the OMElement itself (with a different namespace URI).
> In this case, it should probably discard the provided prefix and generate a
> new one. I created a simple example of this problem which creates an element
> with prefix "foo" and a given namespace URI and then declares a second
> namespace on this element with the same prefix and a different URI. The
> result is an OMElement with a double-prefix:
> {code:java}
> import javax.xml.stream.XMLStreamException;
> import org.apache.axiom.om.OMAbstractFactory;
> import org.apache.axiom.om.OMElement;
> import org.apache.axiom.om.OMFactory;
> public class NamespaceTest {
> final static String NS_URI_1 = "http://www.foobar.org/2005";;
> final static String NS_URI_2 = "http://www.foobar.org/2009";;
> final static String NS_PFX = "foo";
> public static void main (String[] args) {
> final OMFactory omFactory = OMAbstractFactory.getOMFactory();
> OMElement testElement = omFactory.createOMElement("testElement",
> NS_URI_1, NS_PFX);
> testElement.declareNamespace(NS_URI_2, NS_PFX);
> try {
> testElement.serialize(System.out);
> } catch (XMLStreamException ex) {
> System.err.println("Unable to serialize the OMElement. Reason: " +
> ex.getMessage());
> }
> }
> }
> {code}
> This method generates the following output:
> {code:xml}
> <foo:testElement xmlns:foo="http://www.foobar.org/2005";
> xmlns:foo="http://www.foobar.org/2009"/>
> {code}
> Our workaround at the moment is that we no longer use the default
> *SOAPConstants.SOAP_DEFAULT_NAMESPACE_PREFIX* (== 'soapenv'*) constant for
> our custom Axis-Fault. For example "foo":
> {code:xml}
> <soapenv:Fault xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";
> xmlns:foo="http://www.w3.org/2003/05/soap-envelope";>
> <faultcode>foo:Receiver</faultcode>
> <faultstring>General error in function getStructure.</faultstring>
> </soapenv:Fault>
> {code}
> Nonetheless, I wanted to file the issue here because the double-prefix
> problem can occur on any OMElement.
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