Symptoms
Getting an “object reference” error gets thrown when trying to execute a READ method against one of the SmartObjects exposed by the following webservice - http://spectrum.rovantexas.com:8082/ws/PurchaseOrder?wsdl
See video demo: http://screencast.com/t/m5hCc90Lpk
However, running any of the other web service return successful results. In addition, if you run this web service from the SoapUI, it get's back the expected results.
No entries trace is captured in Fiddler – this will suggest the error is occurring even before we hit the web service.
Diagnoses
The web service endpoint in this particular scenario had a different behavior in that where we normally have an empty instantiated header it had a NULL, so needed to add a null check in the code.
Resolution
This is now resolved. The FIX itself is part of Appit 1.4 Update 2 release that rolled out on July 7.