StackOverflowError  - AS3

package {
    import flash.display.Sprite;
    import flash.errors.StackOverflowError;

    public class StackOverflowErrorExample extends Sprite {        
        public function StackOverflowErrorExample() {
            try {
                lockMachine();
            } 
            catch(e:StackOverflowError) {
                trace(e);    // StackOverflowError: Error #1023: Stack overflow.
            }
        }
        
        private function lockMachine():void {
            lockMachine();
        }
    }
}