FileProvider State problem

[Digital God]

Hi all.
i'm currently using ExtJS 2.1 with Adobe Air. All works fine, but not the state manager.

i check the difference between ext-air.js in 2.1 and in 2.0.2

in 2.1 the code is


air.NativeApplication.nativeApplication.addEventListener('exiting', function(){
provider.saveState();
});


and in 2.0.2


var main = window.nativeWindow;
....
main.addEventListener(air.Event.CLOSING, function(){
provider.saveState();
});


why doesn't work air.NativeApplication envent 'exiting'? it doesn't fire..