--- old/src/hotspot/share/gc/g1/g1CollectedHeap.hpp	2018-04-09 14:12:38.470823164 +0200
+++ new/src/hotspot/share/gc/g1/g1CollectedHeap.hpp	2018-04-09 14:12:37.684773547 +0200
@@ -86,7 +86,6 @@
 class G1NewTracer;
 class EvacuationFailedInfo;
 class nmethod;
-class Ticks;
 class WorkGang;
 class G1Allocator;
 class G1ArchiveAllocator;