attribute value changes to null

[Peter Schober]

* Yasser Afifi <yasser at 3dissue.com> [2016-01-25 11:28]:
> I am trying to get attributes and send it to the SP. after checking the
> logs, i can see that the data connector is working fine and attribute was
> fetched but then it changes to NULL, I can't understand the reason. This is
> the log of the IDP, any help would be much appreciated.

I think the relevant parts are:

2016-01-25 10:21:46,230 - DEBUG
[net.shibboleth.idp.attribute.resolver.impl.AttributeResolverImpl:446]
- Attribute Resolver 'ShibbolethAttributeResolver': Attribute
'lastname' has 1 values after post-processing

and

2016-01-25 10:21:46,231 - DEBUG
[net.shibboleth.idp.attribute.resolver.impl.AttributeResolverImpl:206]
- Attribute Resolver 'ShibbolethAttributeResolver': Final resolved
attribute collection: [lastname]

I don't know what that other code does but I wouldn't read "finished
executing expression; result = null" to contradict the log lines
quoted above.

I.e., the resolver seems to be fine, now look at the attribute filter,
to make sure you're releasing that attribute to your SP.
But from the log line you sent on Jan 22nd in the thread
"Re: users Digest, Vol 55, Issue 117"
your IDP already released that attribute, according to the
idp-audit.log (so process log and DEBUG are both unnecessary to
determine whether an attribute had been released or not).
-peter