Apparently sometimes the left hand doesn’t know what the right hand is doing, or at least what it is deprecating:

6/25/10 12:26   
AppleScript Editor[3795]    
*** WARNING: Method selectedRowEnumerator in class NSOutlineView is deprecated. 
It will be removed in a future release and should no longer be used.

I came across this while trying to debug my Meandre installation. (More on that later.)