src/share/vm/gc_implementation/shared/vmGCOperations.cpp

@@ -195,11 +195,11 @@
     return true;
   }
 
   if (UseG1GC && ClassUnloadingWithConcurrentMark) {
     G1CollectedHeap* g1h = G1CollectedHeap::heap();
-    g1h->g1_policy()->set_initiate_conc_mark_if_possible();
+    g1h->g1_policy()->collector_state()->set_initiate_conc_mark_if_possible(true);
 
     GCCauseSetter x(g1h, _gc_cause);
 
     // At this point we are supposed to start a concurrent cycle. We
     // will do so if one is not already in progress.