Runtime Error when cancelling license request

Question

I'm getting the following error when cancelling a license request.  The main difference between my application and the sample applications is that the root Flex Application is mx:Application, rather than mx:WindowedApplication, but I can't figure out the best way to trap this Error - I guess it would be better for the Licensing SWC to catch this error and dispatch an Event instead?
TypeError: Error #2007: Parameter type must be non-null.
at flash.events::Event/ctor()
at flash.events::Event()
at com.adobe.licensing.controllers::LicenseProvider/set currentState()[/home/esbuilder/Shibuya-main/20100514.main.447/rialto/branches/main/compon ents/licensing/swc-release/ant-temp/com/adobe/licensing/controllers/LicenseProvider.as:226 ]
at com.adobe.licensing.controllers::LicenseProvider/httpServiceResultHandler()[/home/esbuild er/Shibuya-main/20100514.main.447/rialto/branches/main/components/licensing/swc-release/an t-temp/com/adobe/licensing/controllers/LicenseProvider.as:1212]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/onComplete()

Answer 1

I think I'm missing something then.
I don't see how the Feature-based Licensing (http://learn.adobe.com/wiki/display/melrose/4.3+Feature-based+Licensing) can work as indicated in the documentation. 
In the sample code the program will exit once the trial has expired, and there will be no other choices.    If not purchased the feature doesn't turn on, but the trial dialog will indicated an option of buy or quit once trial is expired.  The quit will exit the application completely, not disable the feature.  The licensecheck also happens at creationcomplete, not giving an option for explanation of why to buy, or what is being unlocked (yes I realize it is just sample code, but it doesn't seem practical at this point.)
Am I reading the documenation / sample code wrong?  Is there another example that will show a different type of behavior?  If you set no trial does the licensing still come up?