--- a/src/hotspot/share/gc/cms/parNewGeneration.cpp	Wed Oct 18 14:31:10 2017 +0200
+++ b/src/hotspot/share/gc/cms/parNewGeneration.cpp	Wed Oct 18 21:13:35 2017 +0200
@@ -46,6 +46,7 @@
 #include "gc/shared/spaceDecorator.hpp"
 #include "gc/shared/strongRootsScope.hpp"
 #include "gc/shared/taskqueue.inline.hpp"
+#include "gc/shared/weakProcessor.hpp"
 #include "gc/shared/workgroup.hpp"
 #include "logging/log.hpp"
 #include "logging/logStream.hpp"
@@ -999,6 +1000,8 @@
   _gc_tracer.report_tenuring_threshold(tenuring_threshold());
   pt.print_all_references();
 
+  WeakProcessor::weak_oops_do(&is_alive, &keep_alive, &evacuate_followers);
+
   if (!promotion_failed()) {
     // Swap the survivor spaces.
     eden()->clear(SpaceDecorator::Mangle);