I'm being rejected on the App Store for using private instance variables in my app. The ivars I am supposedly using are most definitely not being accessed in my code, but I am using one or two static libs from third parties. How would I test whether these could actually be the offenders?
Update:
Apple is accusing me (and 3rd party libs) of using private instance variables in the UITouch class, including
I am using one or two static libs from third parties
Contact the third parties, requesting explanation, they wrote the code, they must know what's in there. They might have a forum or a comments section, where other users might have expressed these concerns already, and you can look for answers and alternatives.
You can use nm to scan for which library uses the ivar in question.
% nm static_lib.a | grep name_of_ivar
If you get a line, I think with a capital U, with the name of the ivar you probably have a suspect.
I don't know anything about detecting the problem, but we encountered this problem recently; in our case it was caused by the Three20 library. If you are using it, see http://groups.google.com/group/three20/browse%5Fthread/thread/c442af6e39a918b0/2375e7a158ee9d1b for a discussion/possible solutions.