--- old/src/share/vm/gc/shared/allocTracer.cpp	2015-12-09 12:20:51.532791520 +0100
+++ new/src/share/vm/gc/shared/allocTracer.cpp	2015-12-09 12:20:51.392790825 +0100
@@ -47,10 +47,9 @@
   }
 }
 
-void AllocTracer::send_allocation_requiring_gc_event(size_t size, uint gcId) {
+void AllocTracer::send_allocation_requiring_gc_event(size_t size) {
   EventAllocationRequiringGC event;
   if (event.should_commit()) {
-    event.set_gcId(gcId);
     event.set_size(size);
     event.commit();
   }