This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
I don't know what these CasacadePolicy and Property classes are, but obviously getProperty() returns a String, not a CasacadePolicy. Check the API for both. Does the Property class have a method returning a CasacadePolicy ? Does the CascadePolicy class have a method passing a Policy as an argument ?