question about meaning of debug messages in SP

[Peter Schober]

* Michael Weyandt <maw120 at zips.uakron.edu> [2016-07-14 14:03]:
> DEBUG Shibboleth.AttributeExtractor.XML [5]: unable to extract attributes, unknown XML object type: saml2p:Response
> DEBUG Shibboleth.AttributeDecoder.String [5]: decoding SimpleAttribute (principal) from SAML 2 NameID with Format (urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified)
> DEBUG Shibboleth.AttributeExtractor.XML [5]: unable to extract attributes, unknown XML object type: saml2:AuthnStatement
> DEBUG Shibboleth.AttributeDecoder.String [5]: decoding SimpleAttribute (entitlement) from SAML 2 Attribute (urn:oid:1.3.6.1.4.1.5923.1.1.1.7) with 9 value(s)
> 
> What are the meanings of the 1st and 3rd line? The attributes are
> getting passed, so I’m not sure if they’re even related to these but
> this is how it appears in the log.

I take that to mean there are no attributes to be extracted from those
XML elements, which is to be expected. Don't confuse yourself with
DEBUG logging unless you know what you're looking for.
-peter