Exception Support in iOS Native Extensions | Everything about Flash | Scoop.it
From blogs.adobe.com - July 19, 2012 3:04 AM
Up to AIR 3.3, it was not possible to handle exceptions inside the Cocoatouch Static Library in an ANE. With AIR 3.4 Beta, it is possible to use the Objective C @try-@catch-@finally syntax inside one's native library.