--- a/src/hotspot/share/gc/g1/heapRegionSet.hpp	Mon Mar 26 17:01:32 2018 +0200
+++ b/src/hotspot/share/gc/g1/heapRegionSet.hpp	Wed Mar 28 16:39:32 2018 +0200
@@ -59,7 +59,6 @@
 };
 
 class MasterFreeRegionListMtSafeChecker    : public HRSMtSafeChecker { public: void check(); };
-class SecondaryFreeRegionListMtSafeChecker : public HRSMtSafeChecker { public: void check(); };
 class HumongousRegionSetMtSafeChecker      : public HRSMtSafeChecker { public: void check(); };
 class OldRegionSetMtSafeChecker            : public HRSMtSafeChecker { public: void check(); };