--- a/test/hotspot/gtest/gc/shared/test_oopStorage.cpp	Tue Feb 20 16:18:25 2018 -0600
+++ b/test/hotspot/gtest/gc/shared/test_oopStorage.cpp	Wed Feb 21 07:46:40 2018 +0100
@@ -896,7 +896,7 @@
 
 public:
   Task(const char* name, Storage* storage, VerifyState* vstate) :
-    AbstractGangTask(name, GCId::undefined()),
+    AbstractGangTask(name),
     _state(storage),
     _vstate(vstate)
   {}
@@ -915,7 +915,7 @@
 class OopStorageTestParIteration::TaskUsingOopsDo : public AbstractGangTask {
 public:
   TaskUsingOopsDo(const char* name, OopStorage* storage, VerifyState* vstate) :
-    AbstractGangTask(name, GCId::undefined()),
+    AbstractGangTask(name),
     _state(storage),
     _vstate(vstate)
   {}