OpenSAML user discussion

[Anthony Whitehead <>]

Hi,

Just curious if I'm doing something horribly wrong to get the
 following class cast exceptions during unmashalling of any XACML XML. 
All other SAML Objects work fine.
Using Java 5, opensaml 2.3.1, 
xmltooling 1.2.1 and openws 1.3.0.

Here is the exception:

java.lang.ClassCastException: 
org.opensaml.xml.schema.impl.

XSAnyImpl
        at org.opensaml.xacml.profile.saml.impl.XACMLAuthzDecisionQueryTypeUnmarshaller.processAttribute(XACMLAuthzDecisionQueryTypeUnmarshaller.java:56)
        at org.opensaml.xml.io.AbstractXMLObjectUnmarshaller.unmarshallAttribute(AbstractXMLObjectUnmarshaller.java:236)
        at org.opensaml.xml.io.AbstractXMLObjectUnmarshaller.unmarshall(AbstractXMLObjectUnmarshaller.java:107)
        at testXACML.main(testXACML.java:53)

Here is the simple testing code:
public class testXACML {
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        String file = "example_xacml_query.xml";
    try {
            DefaultBootstrap.bootstrap();

        InputStream in = new FileInputStream(file);
        BasicParserPool pool = new BasicParserPool();
        Document doc = pool.parse( in );

        Unmarshaller queryUnmarshaller = Configuration.getUnmarshallerFactory().getUnmarshaller(XACMLAuthzDecisionQueryType.DEFAULT_ELEMENT_NAME_XACML20);

        XACMLAuthzDecisionQueryType xacmlRequest = (XACMLAuthzDecisionQueryType)queryUnmarshaller.unmarshall( doc.getDocumentElement() ); // Line 53
        } catch( Exception e ) {
            e.printStackTrace();
        }
    } 
}

And here is the simple XACML data:
<?xml version="1.0" encoding="UTF-8"?><xacml-samlp:XACMLAuthzDecisionQuery xmlns:xacml-samlp="urn:oasis:xacml:2.0:saml:protocol:schema:os" Destination="https://eh.mysmartxs.com/getronicsap/SAMLResponder" ID="_4dc8f18dc1db53a8ea986c8213640e50" IssueInstant="2010-04-22T17:27:35.379Z" ReturnContext="true" Version="2.0" xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"><saml:Issuer xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion">testissuer</saml:Issuer>
<xacml-context:Request xmlns:xacml-context="urn:oasis:names:tc:xacml:2.0:context:schema:os">
<xacml-context:Subject><xacml-context:Attribute AttributeId="userid" DataType="http://www.w3.org/2001/XMLSchema#string" Issuer="testissuer"><xacml-context:AttributeValue>test</xacml-context:AttributeValue></xacml-context:Attribute></xacml-context:Subject>
<xacml-context:Resource><xacml-context:Attribute AttributeId="resourcename" DataType="http://www.w3.org/2001/XMLSchema#string"><xacml-context:AttributeValue>myresource</xacml-context:AttributeValue></xacml-context:Attribute></xacml-context:Resource>
<xacml-context:Action><xacml-context:Attribute AttributeId="urn:oasis:names:tc:xacml:1.0:action:action-id" DataType="http://www.w3.org/2001/XMLSchema#string"><xacml-context:AttributeValue>Authenticate</xacml-context:AttributeValue></xacml-context:Attribute></xacml-context:Action>
<xacml-context:Environment/>
</xacml-context:Request>
</xacml-samlp:XACMLAuthzDecisionQuery>

So, what am I doing wrong?

Thanks,

/Ant