incoming message gives parse errors

**MrKimi** · Mar 9th, 2008, 01:41 PM

I have two problems and they both relate to parsing xml, it looks like my message body is being changed when it reaches the client and thereafter the parsing fails. They are probably one problem showing up in two ways.

I have this message generated from an external server (ie I have no control over this server).

Code:

<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
	<SOAP-ENV:Body>
		<m:getCustomerResponse xmlns:m="http://www.xxx.co.nz/EAI/V1_22_1" xmlns:eai="http://www.xxx.co.nz/EAI/V1_22_1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xxx.co.nz/EAI/V1_22_1
			EAI_V1_22_1.xsd" >
			<getCustomerResponseResult xsi:type="m:customer"> <!-- CONTEXT:customer:CONTEXT -->
					<partyRoleCategory>
...

I can manually strip the soap envelope from this message an unmarshall it into objects generated with xjc. But when it arrives at my client I see this:

Code:

Exception: Transformation error: Undeclared namespace in :getCustomerResponseResult; nested exception is net.sf.saxon.trans.XPathException: Undeclared namespace in :getCustomerResponseResult
Cause: Transformation error: Undeclared namespace in :getCustomerResponseResult; nested exception is net.sf.saxon.trans.XPathException: Undeclared namespace in :getCustomerResponseResult
	at nz.co.xxx.dsm.crm.dao.DSMCRMDAO.getCustomer(DSMCRMDAO.java:57)
	at nz.co.xxx.dsm.crm.dao.DSMCRMDAO.loadCustomer(DSMCRMDAO.java:117)
	at nz.co.xxx.dsm.crm.dao.DSMCRMDAOTest.testloadCustomer(DSMCRMDAOTest.java:72)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at junit.framework.TestCase.runTest(TestCase.java:154)
	at junit.framework.TestCase.runBare(TestCase.java:127)
	at org.springframework.test.ConditionalTestCase.runBare(ConditionalTestCase.java:69)
	at junit.framework.TestResult$1.protect(TestResult.java:106)
	at junit.framework.TestResult.runProtected(TestResult.java:124)
	at junit.framework.TestResult.run(TestResult.java:109)
	at junit.framework.TestCase.run(TestCase.java:118)
	at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: org.springframework.ws.client.WebServiceTransformerException: Transformation error: Undeclared namespace in :getCustomerResponseResult; nested exception is net.sf.saxon.trans.XPathException: Undeclared namespace in :getCustomerResponseResult
	at org.springframework.ws.client.core.WebServiceTemplate.sendAndReceive(WebServiceTemplate.java:430)
	at org.springframework.ws.client.core.WebServiceTemplate.doSendAndReceive(WebServiceTemplate.java:358)
	at org.springframework.ws.client.core.WebServiceTemplate.sendSourceAndReceiveToResult(WebServiceTemplate.java:304)
	at nz.co.xxx.dsm.eai.WebServiceHelper.send(WebServiceHelper.java:244)
	at nz.co.xxx.dsm.crm.dao.DSMCRMDAO.getCustomer(DSMCRMDAO.java:48)
	... 19 more

My WS client is really simple. No unmarshalling, just a template wired like this:

Code:

	<bean id="webserviceTemplate" class="org.springframework.ws.client.core.WebServiceTemplate">
		<property name="defaultUri" value="http://localhost:8100/SunriseWSEndpoint/services" />
	</bean>

And a call like this:

Code:

m_webServiceTemplate.sendSourceAndReceiveToResult(m_url.toString(),transformedRequest,webServiceMessageCallback,result);

I've seen other topics here referring to the xml libraries so the ones I'm using are :
saxon-9.0.0
xalan-2.7.0
xercesImpl-2.8.1
xmlapis-2.0.2
spring-ws-core-1.0.2
spring-ws-core-tiger-1.0.2

As an experiment I modified the message I get (which I cannot do in real life) to add xmlns="http://www.xxx.co.nz/EAI/V1_22_1" to the m:getCustomerResponse tag. This got the message through the above problem but it was changed in the process so that it now looks like:

Code:

<?xml version="1.0" encoding="UTF-8"?>
<m:getCustomerResponse 
	xmlns:m="http://www.xxx.co.nz/EAI/V1_22_1" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" 
	xsi:schemaLocation="http://www.xxx.co.nz/EAI/V1_22_1    EAI_V1_22_1.xsd">
	<getCustomerResponseResult xmlns="http://www.xxx.co.nz/EAI/V1_22_1" xsi:type="m:customer">
		<partyRoleCategory>
			<code>customer subtype</code>
	</partyRoleCategory>

And when I try to unmarshal this it says:

Code:

Exception: org.springframework.oxm.jaxb.JaxbUnmarshallingFailureException: JAXB unmarshalling exception: null; nested exception is javax.xml.bind.UnmarshalException
 - with linked exception:
[org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invalid content was found starting with element 'getCustomerResponseResult'. One of '{"":getCustomerResponseResult}' is expected.]
Cause: org.springframework.oxm.jaxb.JaxbUnmarshallingFailureException: JAXB unmarshalling exception: null; nested exception is javax.xml.bind.UnmarshalException
 - with linked exception:
[org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invalid content was found starting with element 'getCustomerResponseResult'. One of '{"":getCustomerResponseResult}' is expected.]
	at nz.co.xxx.dsm.crm.dao.DSMCRMDAO.getCustomer(DSMCRMDAO.java:57)
	at nz.co.xxx.dsm.crm.dao.DSMCRMDAO.loadCustomer(DSMCRMDAO.java:117)
	at nz.co.xxx.dsm.crm.dao.DSMCRMDAOTest.testloadCustomer(DSMCRMDAOTest.java:72)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at junit.framework.TestCase.runTest(TestCase.java:154)
	at junit.framework.TestCase.runBare(TestCase.java:127)
	at org.springframework.test.ConditionalTestCase.runBare(ConditionalTestCase.java:69)
	at junit.framework.TestResult$1.protect(TestResult.java:106)
	at junit.framework.TestResult.runProtected(TestResult.java:124)
	at junit.framework.TestResult.run(TestResult.java:109)
	at junit.framework.TestCase.run(TestCase.java:118)
	at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: java.lang.RuntimeException: org.springframework.oxm.jaxb.JaxbUnmarshallingFailureException: JAXB unmarshalling exception: null; nested exception is javax.xml.bind.UnmarshalException
 - with linked exception:
[org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invalid content was found starting with element 'getCustomerResponseResult'. One of '{"":getCustomerResponseResult}' is expected.]
	at nz.co.xxx.dsm.eai.WebServiceHelper.unmarshal(WebServiceHelper.java:166)
	at nz.co.xxx.dsm.crm.dao.DSMCRMDAO.getCustomer(DSMCRMDAO.java:52)
	... 19 more
Caused by: org.springframework.oxm.jaxb.JaxbUnmarshallingFailureException: JAXB unmarshalling exception: null; nested exception is javax.xml.bind.UnmarshalException
 - with linked exception:
[org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invalid content was found starting with element 'getCustomerResponseResult'. One of '{"":getCustomerResponseResult}' is expected.]
	at org.springframework.oxm.jaxb.JaxbUtils.convertJaxbException(JaxbUtils.java:75)
	at org.springframework.oxm.jaxb.AbstractJaxbMarshaller.convertJaxbException(AbstractJaxbMarshaller.java:143)
	at org.springframework.oxm.jaxb.Jaxb2Marshaller.unmarshal(Jaxb2Marshaller.java:399)
	at org.springframework.oxm.jaxb.Jaxb2Marshaller.unmarshal(Jaxb2Marshaller.java:383)
	at nz.co.xxx.dsm.eai.WebServiceHelper.unmarshal(WebServiceHelper.java:161)
	... 20 more

The eai namespace definition has been removed and there default namespace on the getCustomerResponseResult is not working, I think it needs to be on the tag above, where it was in the message, ie before it was mysteriously moved.

Thanks for any help.

**Arjen Poutsma** · Mar 12th, 2008, 07:19 AM

Could you try to use 1.5 RC1? I fixed some SAXON related issues in that 1.5 M2 and higher (http://jira.springframework.org/browse/SWS-265). These will also be part of the forthcoming 1.0.4, which will be out after 1.5 has been released.

**MrKimi** · Mar 17th, 2008, 11:50 PM

Thanks for the help.

I switched to the following libraries:
spring-ws-core-1.5.0-m2
spring-oxm-1.5.0-m2
spring-oxm-tiger-1.5.0-m2

and I am still running
saxon-9.0.0
xalan-2.7.0
xercesImpl-2.8.1
xmlapis-2.0.2

I'm still getting problems. I've changed the system around a bit so the problem is not quite the same but I think it is the same thing in disguise.

I now have a simple http client that grabs the xml and uses JAXB to unmarshal it. That works fine, but we lose the advantages of having the soap headers constructed flexibly. However I can get a message like this:

Code:

      <soapenv:Envelope 
      	xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
      	xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
      	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
         <soapenv:Header>
            <applicationContext soapenv:mustUnderstand="0"/>
         </soapenv:Header>
         <soapenv:Body>
            <ns2:getCustomer xmlns:ns2="http://www.xxx.co.nz/EAI/V1_22_1">
               <customerKey>
                  <primaryKey>1231523</primaryKey>
               </customerKey>
               <objectNames>
....

which works with my http/xml/jxb code but fails when I pass it through my Spring-ws SOAP client. The error is

Code:

Exception: Transformation error: Undeclared namespace in :getCustomerResponseResult; nested exception is net.sf.saxon.trans.XPathException: Undeclared namespace in :getCustomerResponseResult
Cause: Transformation error: Undeclared namespace in :getCustomerResponseResult; nested exception is net.sf.saxon.trans.XPathException: Undeclared namespace in 
...
Caused by: net.sf.saxon.trans.XPathException: Undeclared namespace in :getCustomerResponseResult
	at net.sf.saxon.dom.DOMSender.outputElement(DOMSender.java:187)
	at net.sf.saxon.dom.DOMSender.walkNode(DOMSender.java:145)
	at net.sf.saxon.dom.DOMSender.outputElement(DOMSender.java:228)
	at net.sf.saxon.dom.DOMSender.sendElement(DOMSender.java:122)
	at net.sf.saxon.dom.DOMSender.send(DOMSender.java:93)
	at net.sf.saxon.dom.DOMObjectModel.sendSource(DOMObjectModel.java:112)
	at net.sf.saxon.event.Sender.send(Sender.java:216)
	at net.sf.saxon.IdentityTransformer.transform(IdentityTransformer.java:29)
	at org.springframework.ws.client.core.WebServiceTemplate$3.extractData(WebServiceTemplate.java:339)
	at org.springframework.ws.client.core.WebServiceTemplate$SourceExtractorMessageExtractor.extractData(WebServiceTemplate.java:696)
	at org.springframework.ws.client.core.WebServiceTemplate.doSendAndReceive(WebServiceTemplate.java:492)
	... 27 more

Should I be using a different saxon library?

Thanks
Roger

**Arjen Poutsma** · Mar 19th, 2008, 04:26 PM

Saxon and Xalan are both transformation engines, so you don't need both. Either will do.

As for the error: what does the response look like? You can use a tool like tcpmon (https://tcpmon.dev.java.net/) to find out...

**MrKimi** · Mar 19th, 2008, 05:05 PM

I'm not explaining the problem well enough.
The sample message is what I got from tcpmon.
When it reaches the client it fails with the stack dump.
I'm not trying to get the client to unmarshal it, I just want the payload as an InputSource object. My client does this:

Code:

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        Result result = new StreamResult(out);
            m_webServiceTemplate.sendSourceAndReceiveToResult(m_url.toString(),transformedRequest,webServiceMessageCallback,result);
        return new InputSource(new StringReader(out.toString()));

So your point about the two transformation engines is surely correct, but possibly not relevant to the problem? I put the saxon one in there because I got an early error message telling me I had to have saxon9-dom on my classpath. Xalan was already there.
Thanks

**Arjen Poutsma** · Mar 20th, 2008, 07:01 AM

Ok, if that's the message you get, then I don't understand why the parser is complaining about getCustomerResponseResult, since I don't see that element in your sample message.

**MrKimi** · Mar 26th, 2008, 05:23 PM

I need to be more careful, sorry.

Here is the message I am receiving at the client, so this is a response from the server to a valid message from the client (trimmed for brevity)

Code:

<?xml version="1.0" encoding="UTF-8"?>
      <SOAP-ENV:Envelope 
      	xmlns:ns2="http://www.xxx.co.nz/EAI/UMTS_ICMSAdapter" 
      	xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" 
      	xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" 
      	xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
      	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
      	xsi:schemaLocation="http://www.xxx.co.nz/EAI/UMTS_ICMSAdapter UMTS_ICMSAdapter.xsd">
         <SOAP-ENV:Body>
            <ns2:getCustomerResponse>
               <getCustomerResponseResult>
                  <partyRoleCategory>
                     <code>customer subtype</code>

This is the error I get:

Code:

Exception: Transformation error: Undeclared namespace in :getCustomerResponseResult; nested exception is net.sf.saxon.trans.XPathException: Undeclared namespace in :getCustomerResponseResult
Cause: Transformation error: Undeclared namespace in :getCustomerResponseResult; nested exception is net.sf.saxon.trans.XPathException: Undeclared namespace in :getCustomerResponseResult
...
Caused by: org.springframework.ws.client.WebServiceTransformerException: Transformation error: Undeclared namespace in :getCustomerResponseResult; nested exception is net.sf.saxon.trans.XPathException: Undeclared namespace in :getCustomerResponseResult
	at org.springframework.ws.client.core.WebServiceTemplate.sendAndReceive(WebServiceTemplate.java:430)
	at org.springframework.ws.client.core.WebServiceTemplate.doSendAndReceive(WebServiceTemplate.java:358)
	at org.springframework.ws.client.core.WebServiceTemplate.sendSourceAndReceiveToResult(WebServiceTemplate.java:304)
	at com.salestech.dsm.eai.WebTransportSOAP.send(WebTransportSOAP.java:69)
	at com.salestech.dsm.eai.WebServiceHelperImpl.send(WebServiceHelperImpl.java:221)
	at nz.co.xxx.dsm.crm.dao.DSMCRMDAO.getCustomer(DSMCRMDAO.java:99)
	... 21 more
Caused by: net.sf.saxon.trans.XPathException: Undeclared namespace in :getCustomerResponseResult
	at net.sf.saxon.dom.DOMSender.outputElement(DOMSender.java:187)
	at net.sf.saxon.dom.DOMSender.walkNode(DOMSender.java:145)
	at net.sf.saxon.dom.DOMSender.outputElement(DOMSender.java:228)
	at net.sf.saxon.dom.DOMSender.sendElement(DOMSender.java:122)
	at net.sf.saxon.dom.DOMSender.send(DOMSender.java:93)
	at net.sf.saxon.dom.DOMObjectModel.sendSource(DOMObjectModel.java:112)
	at net.sf.saxon.event.Sender.send(Sender.java:216)
	at net.sf.saxon.IdentityTransformer.transform(IdentityTransformer.java:29)
	at org.springframework.ws.client.core.WebServiceTemplate$3.extractData(WebServiceTemplate.java:308)
	at org.springframework.ws.client.core.WebServiceTemplate$SourceExtractorMessageExtractor.extractData(WebServiceTemplate.java:589)
	at org.springframework.ws.client.core.WebServiceTemplate.sendAndReceive(WebServiceTemplate.java:416)

This time the tag in the error message matches the tag in the response.
I think I just need to know what must change in the message to make it work. I have tried several variations such as adding a

Code:

xmlns="http://www.xxx.co.nz/EAI/UMTS_ICMSAdapter"

to various places. So far that gives me other errors. I do have limited ability to change the message, though, because it comes from an external source.

Thanks for your help

**Arjen Poutsma** · Mar 27th, 2008, 08:29 AM

Iit looks like the getCustomerResponseResult has no namespace: only the getCustomerResponse has prefix ns2 and namespace http://www.xxx.co.nz/EAI/UMTS_ICMSAdapter. I think that's what Saxon is complaining about.

Since you stated before that you cannot change the server-side message, I can't think of anything to help. You could try getting rid of Saxon altogether, and see whether Xalan gets you further.

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incoming message gives parse errors

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