internal LockNotFoundException(string message, string cacheKey, StackifyRedisLocker whichlock)
     : base(message, cacheKey, whichlock)
 {
 }
 internal LockException(string message, string cacheKey, StackifyRedisLocker whichlock)
     : base(string.Format("{0} - {1}", whichlock.ToString(), message), cacheKey)
 {
 }