--- a/src/hotspot/share/gc/cms/concurrentMarkSweepGeneration.hpp	Fri May 04 09:29:14 2018 +0200
+++ b/src/hotspot/share/gc/cms/concurrentMarkSweepGeneration.hpp	Fri May 04 11:41:35 2018 +0200
@@ -69,7 +69,6 @@
 class ParNewGeneration;
 class PromotionInfo;
 class ScanMarkedObjectsAgainCarefullyClosure;
-class TenuredGeneration;
 class SerialOldTracer;
 
 // A generic CMS bit map. It's the basis for both the CMS marking bit map