Artifact Resolution Warning

[Cantor, Scott]

> 2016-08-16 13:46:40,736 - WARN
> [org.opensaml.saml.saml2.profile.impl.ResolveArtifact:227] - Profile Action
> ResolveArtifact: Unresolvable Artifact
> 'AAQAAqgDSSunLv6GRhniP8zvWmKsNhVqNdLC/eWy5jsEkVHyPFi01qShSKk=
> ' from relying
> party 'https://isis.tu-berlin.de/shibboleth'
> 2016-08-16 13:46:40,737 - WARN
> [org.opensaml.profile.action.impl.LogEvent:76] - An error event occurred
> while processing the request: UnableToResolveArtifact
> 
> I have no idea what causes these warnings.
> Any hint?

Is the failing artifact the same every time? Does it match an artifact issued as part of some earlier request that is being resolved?

If I had to guess, it's a monitoring script repeating a request or something like that.

-- Scott