--- old/src/share/vm/oops/instanceRefKlass.inline.hpp	2016-01-24 11:21:56.010729283 +0100
+++ new/src/share/vm/oops/instanceRefKlass.inline.hpp	2016-01-24 11:21:55.934730592 +0100
@@ -67,6 +67,13 @@
   if (contains(next_addr)) {
     Devirtualizer<nv>::do_oop(closure, next_addr);
   }
+  // treat value as normal oop if Ephemeron
+  if (reference_type() == REF_EPHEMERON) {
+    T* value_addr = (T*)java_lang_ref_Ephemeron::value_addr(obj);
+    if (contains(value_addr)) {
+      Devirtualizer<nv>::do_oop(closure, value_addr);
+    }
+  }
 }
 
 class AlwaysContains {