XPath evaluation issues

[symfrog]

I have a AbstractDomPayloadEndpoint that uses jaxp XPath to get info out of the passed in element. I have unit tests that pass in a Element that was created from a sample xml file that works fine, but as soon as I deploy to tomcat the XPath evaluations always return empty values. Relevant code snippets are below:

Endpoint code:

@Override
	protected Element invokeInternal(Element element, Document document)
			throws Exception {

		XPath xpath = XPathFactory.newInstance().newXPath();
		xpath.setNamespaceContext(new MyNamespaceContext());
		String expression = "/dep:UploadRequest/dep:CompanyName";
		
		String companyName = (String) xpath.evaluate(expression, element, XPathConstants.STRING);
		
//    companyName is empty in acceptance test(when hitting tomcat), but works fine in unit tests!
		logger.debug("Company name: " + companyName);
		
		return null;
	}

private class MyNamespaceContext implements NamespaceContext {
	    public String getNamespaceURI(String prefix) {
	    	
	    	if (prefix == null) throw new NullPointerException("Null prefix");
	        else if ("dep".equals(prefix))
	        	return "http://virtualmobiletech.com/DeploymentApp/schemas";
	        else if ("xml".equals(prefix)) return XMLConstants.XML_NS_URI;
	        return XMLConstants.NULL_NS_URI;
	    }

	    // This method isn't necessary for XPath processing.
	    public String getPrefix(String uri) {
	        throw new UnsupportedOperationException();
	    }

	    // This method isn't necessary for XPath processing either.
	    public Iterator<Object> getPrefixes(String uri) {
	        throw new UnsupportedOperationException();
	    }
	}

The xml file being used to generate the element for the unit tests that passes looks as follows:

<?xml version="1.0" encoding="UTF-8"?>
<UploadRequest xmlns="http://virtualmobiletech.com/DeploymentApp/schemas">
	  <Credentials>
		<User>Carl</User>
		<Password>123456</Password>
	  </Credentials>
	  
	  <CompanyName>viewfines</CompanyName>
	  
	  <ApplicationId>vflive</ApplicationId>
	
	  <ApplicationVersion>
		  <Major>1</Major>
		  <Minor>0</Minor>
	  </ApplicationVersion>
		
		<Devices>
		   <Device brand="Siemens" model="CL75"/>
		   <Device brand="Nokia" model="E61"/>
		</Devices>
		
		
		<CapabilityGroups>
		   <CapabilityGroup>MIDP1.0</CapabilityGroup>
		   <CapabilityGroup>hasPointer</CapabilityGroup>
		</CapabilityGroups>
		
		<MetaData>VGhpcyBpcyBteSBqYWQgZmlsZSE=</MetaData>
	
		<BinData>VGhpcyBpcyBteSBqYXIgZmlsZSwgd29vaG9vIQ==</BinData>
	  
</UploadRequest>

The request that is being passed in for the acceptance test and that fails looks as follows:

<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="">
  <soap:Body>
	<UploadRequest xmlns="http://virtualmobiletech.com/DeploymentApp/schemas">
	  <Credentials>
		<User>Carl</User>
		<Password>123456</Password>
	  </Credentials>
	  
	  <CompanyName>1time</CompanyName>
	  
	  <ApplicationId>1time</ApplicationId>
	
	  <ApplicationVersion>
		  <Major>1</Major>
		  <Minor>21</Minor>
	  </ApplicationVersion>
		
		<Devices>
		   <Device brand="Siemens" model="CL75"/>
		   <Device brand="Nokia" model="E61"/>
		</Devices>
		
		
		<CapabilityGroups>
		   <CapabilityGroup>MIDP1.0</CapabilityGroup>
		   <CapabilityGroup>hasPointer</CapabilityGroup>
		</CapabilityGroups>
		
		<MetaData>TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz
	IHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg
	dGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu
	dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo
	ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=
	</MetaData>
	
		<BinData>TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz
	IHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg
	dGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu
	dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo
	ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=
	</BinData>
	  
	</UploadRequest>

  </soap:Body>
</soap:Envelope>

The only difference that I could see is that for the unit test org.apache.xpath.jaxp.XPathImpl is the class returned by XPathFactory.newInstance().newXPath() and when in tomcat com.sun.org.apache.xpath.internal.jaxp.XPathImpl is returned!

Anyone got any idea?

[symfrog]

Also when I navigate the element using the W3C api of the element I can get all the elements and their data. It is only when using XPath that the empty string is returned.

Another difference that I have noticed is that in the unit test the passed in Element is of class type org.apache.xerces.dom.DeferredElementNSImpl and for acceptance test in tomcat it is com.sun.xml.internal.messaging.saaj.soap.ver1_1.Bo dyElement1_1Impl

The following works in both the acceptance test and the unit test:

NodeList nodeList = element.getChildNodes();
	    
		for(int i = 0; i < nodeList.getLength();i++)
		{
			Node node = nodeList.item(i);
			
			if(node.getNodeName().equals("CompanyName"))
				logger.debug("Company name dom API: " + node.getTextContent());
		}

[symfrog]

I also generated a sample message from the WSDL generated by Spring WS using soapUI and got the same problem