title: Detecting the use of private APIs
body: <p>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?</p>
  
  <p><strong>Update:</strong></p>
  
  <p>Apple is accusing me (and 3rd party libs) of using private instance variables in the UITouch class, including</p>
  
  <ul>
  <li>_locationInWindow</li>
  <li>_tapCount</li>
  <li>_previousLocationInWindow</li>
  <li>_timestamp</li>
  <li>_touchFlags</li>
  <li>_phase</li>
  <li>_window</li>
  </ul>