@@ -97,11 +97,11 @@
 		id firstPool = of_tlskey_get(firstKey);
 		previousPool = of_tlskey_get(lastKey);
 
 		if (!of_tlskey_set(lastKey, self))
 			@throw [OFInitializationFailedException
-			    exceptionWithClass: isa];
+			    exceptionWithClass: [self class]];
 #else
 		previousPool = lastPool;
 		lastPool = self;
 #endif
 
@@ -108,11 +108,11 @@
 		if (firstPool == nil) {
 #ifdef OF_THREADS
 			if (!of_tlskey_set(firstKey, self)) {
 				of_tlskey_set(lastKey, previousPool);
 				@throw [OFInitializationFailedException
-				    exceptionWithClass: isa];
+				    exceptionWithClass: [self class]];
 			}
 #else
 			firstPool = self;
 #endif
 		}
@@ -209,15 +209,15 @@
 	[super dealloc];
 }
 
 - retain
 {
-	@throw [OFNotImplementedException exceptionWithClass: isa
+	@throw [OFNotImplementedException exceptionWithClass: [self class]
 						    selector: _cmd];
 }
 
 - autorelease
 {
-	@throw [OFNotImplementedException exceptionWithClass: isa
+	@throw [OFNotImplementedException exceptionWithClass: [self class]
 						    selector: _cmd];
 }
 @end