ClassCastException : IssuerImpl to XSAny

[Tom Chiverton]

Hi,

I'm very close to being able to build a simple SAML IDP Response XML 
that can be HTTP POST'ed to a SP (IDP-initiated SSO).

I'm now able to build the main XML body, complete with assertions, but 
can't seem to get signing to work :(

I'm getting a cast exception, 
"org.opensaml.saml.saml2.core.impl.IssuerImpl cannot be cast to 
org.opensaml.core.xml.schema.XSAny" when I try and do the final line of 
the below code ( marshaller.marshall(assertion) ).

I assume something is missing upstream of here, either in my 
configuration ( ConfigurationService ? ) or the code that builds the 
assertion itself, but don't really know where I might need to start 
looking.

Any ideas ?

// ... already have an "assertion" variable of type 
org.opensaml.saml.saml2.core.Assertion ...

SignatureBuilder builder = new SignatureBuilder();
Signature signature = builder.buildObject();

signature.setSigningCredential(signingCredential);
signature.setSignatureAlgorithm(SignatureConstants.ALGO_ID_SIGNATURE_RSA_SHA256);
signature.setCanonicalizationAlgorithm(SignatureConstants.ALGO_ID_C14N_EXCL_OMIT_COMMENTS);

assertion.setSignature(signature);

AssertionMarshaller marshaller = new AssertionMarshaller();
marshaller.marshall(assertion);

The full stack trace from there is

org.opensaml.saml.saml2.core.impl.IssuerImpl cannot be cast to 
org.opensaml.core.xml.schema.XSAny
at 
org.opensaml.core.xml.schema.impl.XSAnyMarshaller.marshallAttributes(XSAnyMarshaller.java:45)
at 
org.opensaml.core.xml.io.AbstractXMLObjectMarshaller.marshallInto(AbstractXMLObjectMarshaller.java:210)
at 
org.opensaml.core.xml.io.AbstractXMLObjectMarshaller.marshall(AbstractXMLObjectMarshaller.java:162)
at 
org.opensaml.core.xml.io.AbstractXMLObjectMarshaller.marshallChildElements(AbstractXMLObjectMarshaller.java:271)
at 
org.opensaml.core.xml.io.AbstractXMLObjectMarshaller.marshallInto(AbstractXMLObjectMarshaller.java:212)
at 
org.opensaml.core.xml.io.AbstractXMLObjectMarshaller.marshall(AbstractXMLObjectMarshaller.java:118)
at 
org.opensaml.saml.common.AbstractSAMLObjectMarshaller.marshall(AbstractSAMLObjectMarshaller.java:57)
at 
org.opensaml.core.xml.io.AbstractXMLObjectMarshaller.marshall(AbstractXMLObjectMarshaller.java:75)

Tom Chiverton --
*Tom Chiverton*
Lead Developer
e: 	tc at extravision.com <mailto:tc at extravision.com>
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