I have installed AEM 6.0 quickstart, and also installed the example described here:
http://helpx.adobe.com/aem-forms/6/synchronizing-adaptive-forms-xfa.html
I am able to open the adaptive form for edit, however the adaptive form data model tab (on left hand side) is blank, screenshot attached. Also, there is a warning: "Unable to generate JSON from Template provided in Adaptive Form. Please see the server logs for more Information".
I couldn't find further information in the logs.
Has anyone had issues using the sample adaptive form described in the link above?