@@ -36,17 +36,21 @@
 /*!
  * The URL whose protocol is unsupported.
  */
 @property (readonly, nonatomic) OFURL *URL;
 
++ (instancetype)exception OF_UNAVAILABLE;
+
 /*!
  * @brief Creates a new, autoreleased unsupported protocol exception.
  *
  * @param URL The URL whose protocol is unsupported
  * @return A new, autoreleased unsupported protocol exception
  */
 + (instancetype)exceptionWithURL: (OFURL*)URL;
+
+- init OF_UNAVAILABLE;
 
 /*!
  * @brief Initializes an already allocated unsupported protocol exception
  *
  * @param URL The URL whose protocol is unsupported