deprecation warning in the logs

[Peter Schober]

* Guillaume Rousse <guillaume.rousse at renater.fr> [2019-08-29 15:32]:
> WARN [DEPRECATED:125] - Java class method
> 'requestContext.getPrincipalName()': This will be removed in the next major
> version of this software; replacement is resolutionContext.getPrincipal()
> 
> There isn't any explicit mention from what is triggering this exception,
> tough. Is that something we can fix on our side, or do we have to wait for
> IdP 4.x for this ?

./dist/conf/attribute-resolver-full.xml now contains
$resolutionContext.principal in the QueryTemplate of a
RelationalDatabase DataConnector, so I suppose that's what you should
be using, too.

(I.e., I think the suggested replacement from that warning isn't correct.)

-peter