@@ -28,10 +28,15 @@
 				 errNo: (int)errNo
 {
 	return [[[self alloc] initWithCondition: condition
 					  errNo: errNo] autorelease];
 }
+
++ (instancetype)exception
+{
+	OF_UNRECOGNIZED_SELECTOR
+}
 
 - (instancetype)initWithCondition: (OFCondition *)condition errNo: (int)errNo
 {
 	self = [super init];