OpenSAML user discussion

["Håkon Sagehaug" <>]

Hi Christina

I tried the same as you, but did bot get this error. I almost just copy/pasted you code into my test project. Have you tried to debug it to see on what line the error comes from?

here is a link to my test project. See in the class SampleProgram#statementXACMLAuthzDecision that makes the assertion and SampleProgram#marshallSAMLRepsonse. 

http://www.bccs.uib.no/~hakont/SAMLXACMLExtension/files/SamplePackage_src.tar.gz


How is your XACMLAuthzDecisionStatement made, could it be something wrong there?

cheers,. Håkon

2008/5/29 Christina Cunningham <>:

Hi,

When trying to marshall a saml (2.0) response containing an assertion which has an XACMLAuthzDecisionStatement within it's list of statements, I am getting a ClassCastException thrown.

I am assuming that because XACMLAuthzDecisionStatement extends Statement this should be possible to do?

<code>
SAMLObjectBuilder<Response> builder = (SAMLObjectBuilder<Response>) builderFactory
              .getBuilder(Response.DEFAULT_ELEMENT_NAME);
Response response = builder.buildObject();
response.setVersion(SAMLVersion.VERSION_20);
Assertion assertion = getAssertion(issueInstant, responseSubject);
XACMLAuthzDecisionStatementType decision = getXACMLAuthzDecisionStatementType();
assertion.getStatements().add(decision);      response.getAssertions().add(assertion);

MarshallerFactory marshallerFactory = Configuration.getMarshallerFactory();
Marshaller marshaller = marshallerFactory.getMarshaller(response);
Element subjectElement = marshaller.marshall(response);
</code>

<stacktrace>
java.lang.ClassCastException: org.opensaml.xacml.profile.saml.impl.XACMLAuthzDecisionStatementTypeImpl cannot be cast to org.opensaml.xml.schema.XSAnynull
  at org.opensaml.xml.schema.impl.XSAnyMarshaller.marshallAttributes(XSAnyMarshaller.java:39)
  at org.opensaml.xml.io.AbstractXMLObjectMarshaller.marshallInto(AbstractXMLObjectMarshaller.java:225)
  at org.opensaml.xml.io.AbstractXMLObjectMarshaller.marshall(AbstractXMLObjectMarshaller.java:178)
  at org.opensaml.xml.io.AbstractXMLObjectMarshaller.marshallChildElements(AbstractXMLObjectMarshaller.java:319)
  at org.opensaml.xml.io.AbstractXMLObjectMarshaller.marshallInto(AbstractXMLObjectMarshaller.java:227)
  at org.opensaml.xml.io.AbstractXMLObjectMarshaller.marshall(AbstractXMLObjectMarshaller.java:178)
  at org.opensaml.xml.io.AbstractXMLObjectMarshaller.marshallChildElements(AbstractXMLObjectMarshaller.java:319)
  at org.opensaml.xml.io.AbstractXMLObjectMarshaller.marshallInto(AbstractXMLObjectMarshaller.java:227)
  at org.opensaml.xml.io.AbstractXMLObjectMarshaller.marshall(AbstractXMLObjectMarshaller.java:133)
  at org.opensaml.xml.io.AbstractXMLObjectMarshaller.marshall(AbstractXMLObjectMarshaller.java:89)
  at com.<>.security.saml.SamlResponseHelper.marshallResponseToString(SamlResponseHelper.java:144)
  at com.<>.security.saml.SamlResponseHelper.buildResponseString(SamlResponseHelper.java:98)
  at com.<>.security.signon.client.TestSamlResponseHelper.<init>(TestSamlResponseHelper.java:50)
  at com.<>.security.signon.client.TestSamlResponseHelper.main(TestSamlResponseHelper.java:64)
Exception in thread "main" java.lang.NullPointerException
</stacktrace>


Thanks,

Christina

--
Christina Cunningham
Software Engineer
Belfast eScience Centre (BeSC)
Queen's University, Belfast
e: c.cunningham [at] besc.ac.uk
w: www.besc.ac.uk

-- 
Håkon Sagehaug, Software Developer
Parallab, Bergen Center for Computational Science (BCCS)
UNIFOB AS (University of Bergen Research Company)