--- old/src/hotspot/share/gc/g1/g1Policy.hpp	2019-01-25 14:26:58.948205308 +0100
+++ new/src/hotspot/share/gc/g1/g1Policy.hpp	2019-01-25 14:26:58.461190290 +0100
@@ -44,7 +44,7 @@
 
 class HeapRegion;
 class G1CollectionSet;
-class CollectionSetChooser;
+class G1CollectionSetChooser;
 class G1IHOPControl;
 class G1Analytics;
 class G1SurvivorRegions;
@@ -176,7 +176,7 @@
   double non_young_other_time_ms() const;
   double constant_other_time_ms(double pause_time_ms) const;
 
-  CollectionSetChooser* cset_chooser() const;
+  G1CollectionSetChooser* cset_chooser() const;
 
   // The number of bytes copied during the GC.
   size_t _bytes_copied_during_gc;