OpenSAML user discussion

Hello all,

I'm totally new to using SAML and OpenSAML in particular.  I need to create a 
sender-vouches assertion that is signed using an x509 key. (for NYS Heal5 
HIE, if anyone is wondering)  I have the following code:

DefaultBootstrap.bootstrap(); // initialize the opensaml library
// jtc -- now, build the assertion
XMLObjectBuilderFactory builderFactory = Configuration.getBuilderFactory();
SAMLObjectBuilder<Assertion> builder = (SAMLObjectBuilder<Assertion>) 
builderFactory.getBuilder(Assertion.DEFAULT_ELEMENT_NAME);
Assertion assertion = builder.buildObject();
// jtc -- we have the naked assertion now.  let's add the interesting stuff.
                 
// jtc - signature and credential
BasicX509Credential privateCredential = new BasicX509Credential();
InputStream inStream = new FileInputStream((String) samlInfoVector.get(0)); 
// position 0 has the key file
X509Certificate cert = X509Certificate.getInstance(inStream);
inStream.close();                 
privateCredential.setEntityCertificate(cert);

I'm having a problem with that last line, setting the EntityCertificate.  The 
error I'm getting is:

The method setEntityCertificate(X509Certificate) in the type 
BasicX509Credential is not applicable for the arguments (X509Certificate)

Any guidance on what's going here would be much appreciated.

Thanks
Jason Countryman