--- old/src/hotspot/share/gc/shared/genCollectedHeap.cpp	2019-03-13 09:15:54.668269841 +0100
+++ new/src/hotspot/share/gc/shared/genCollectedHeap.cpp	2019-03-13 09:15:54.076260037 +0100
@@ -176,16 +176,14 @@
   return heap_rs->base();
 }
 
-namespace {
-  class GenIsScavengable : public BoolObjectClosure {
-  public:
-    bool do_object_b(oop obj) {
-      return GenCollectedHeap::heap()->is_in_young(obj);
-    }
-  };
+class GenIsScavengable : public BoolObjectClosure {
+public:
+  bool do_object_b(oop obj) {
+    return GenCollectedHeap::heap()->is_in_young(obj);
+  }
+};
 
-  GenIsScavengable _is_scavengable;
-}
+static GenIsScavengable _is_scavengable;
 
 void GenCollectedHeap::post_initialize() {
   CollectedHeap::post_initialize();