Also, I'm using NSCalendarDate not NSTimestamp for valueClassName
in my eomodels.
NSCalendarDate is the "Value Class (Obj-C)" equivalent of the "Value
Class (Java)" NSTimestamp. These days, you should probably delete
the "Value Class (Obj-C)" column and add the "Value Class (Java)"
column to your eomodels. However, doing so will make absolutely no
difference at run time assuming that you're using the correct
Objective-C equivalents of Java value classes.