@@ -47,10 +47,12 @@
 /*!
  * The errno of the error that occurred.
  */
 @property (readonly) int errNo;
 
++ (instancetype)exception OF_UNAVAILABLE;
+
 /*!
  * @brief Creates a new, autoreleased listen failed exception.
  *
  * @param socket The socket which failed to listen
  * @param backLog The requested size of the back log
@@ -58,10 +60,12 @@
  * @return A new, autoreleased listen failed exception
  */
 + (instancetype)exceptionWithSocket: (id)socket
 			    backLog: (int)backLog
 			      errNo: (int)errNo;
+
+- init OF_UNAVAILABLE;
 
 /*!
  * @brief Initializes an already allocated listen failed exception
  *
  * @param socket The socket which failed to listen