ObjectTypeValidator should give a more meaningful error message. ---------------------------------------------------------------- Key: WFCORE-596 URL: https://issues.jboss.org/browse/WFCORE-596 Project: WildFly Core Issue Type: Enhancement Components: Domain Management Affects Versions: 1.0.0.Alpha19 Reporter: Darran Lofthouse Assignee: Darran Lofthouse Fix For: 1.0.0.Beta1 Presently the error is reported as: - {code} throw new OperationFailedException("invalid type key"); {code} If you are making a call with a complex object type you have no idea as to what is really wrong.