configuration property type with arrays

[Leschke, Scott]

Can one/how does one define a value in a property file such that the value is 
converted to an array of values (specifically a String[]) when using 
Configuration Property Types?  I've been gradually moving my blueprint code 
over to Components and have been using CPTs which I first read about in Neil 
Bartlett's article "What's New in Declarative Services 1.3?"  Further reading 
led me to believe this is possible but, while I get an array, it always has 
length == 1.