Attribute resolver warning on start-up

[Peter Schober]

* Wessel, Keith <kwessel at illinois.edu> [2015-07-02 19:33]:
> 2015-07-02 11:48:51,640 - WARN
> [net.shibboleth.idp.saml.attribute.mapping.AbstractSAMLAttributeMapper:223] - Scoped Attribute Mapper 'MapperForeduPersonScopedAffiliation': Attribute 'urn:oid:1.3.6.1.4.1.5923.1.1.1.9' value conversion yielded no suitable values
> 
> Yet we get valid scoped attribute values for eduPersonScopedAffiliation released to SPs. Below is my definition from attribute-resolver.xml. What's causing this warning?
> 
>     <resolver:AttributeDefinition id="eduPersonScopedAffiliation" xsi:type="ad:Scoped"
>          scope="%{idp.scope}" sourceAttributeID="eduPersonAffiliation">
>          <resolver:Dependency ref="myLDAP" />
>  
>         <resolver:AttributeEncoder xsi:type="SAML1ScopedString" xmlns="urn:mace:shibboleth:2.0:attribute:encoder"
>              name="urn:mace:dir:attribute-def:eduPersonScopedAffiliation" />
>  
>         <resolver:AttributeEncoder xsi:type="enc:SAML2ScopedString" name="urn:oid:1.3.6.1.4.1.5923.1.1.1.9" friendlyName="eduPersonScopedAffiliation" encodeType="false" />
>      </resolver:AttributeDefinition>

Note that the config above is not
'MapperForeduPersonScopedAffiliation', so doesn't really help to shed
light on problems there.
-peter