@@ -33,17 +33,21 @@
 /*!
  * The hash which has already been calculated.
  */
 @property (readonly, nonatomic) id object;
 
++ (instancetype)exception OF_UNAVAILABLE;
+
 /*!
  * @brief Creates a new, autoreleased hash already calculated exception.
  *
  * @param object The hash which has already been calculated
  * @return A new, autoreleased hash already calculated exception
  */
 + (instancetype)exceptionWithObject: (id)object;
+
+- init OF_UNAVAILABLE;
 
 /*!
  * @brief Initializes an already allocated hash already calculated exception.
  *
  * @param object The hash which has already been calculated