diff -r 10621b0e8e38 -r 4b469f5f4bf2 src/hotspot/share/oops/methodData.cpp
--- a/src/hotspot/share/oops/methodData.cpp	Wed Jan 09 15:53:56 2019 +0100
+++ b/src/hotspot/share/oops/methodData.cpp	Thu Jan 10 18:10:15 2019 +0100
@@ -1653,11 +1653,6 @@
   }
 }
 
-class CleanExtraDataClosure : public StackObj {
-public:
-  virtual bool is_live(Method* m) = 0;
-};
-
 // Check for entries that reference an unloaded method
 class CleanExtraDataKlassClosure : public CleanExtraDataClosure {
   bool _always_clean;