src/share/vm/gc/parallel/psParallelCompact.cpp

@@ -2104,11 +2104,11 @@
   }
 
   // This is the point where the entire marking should have completed.
   assert(cm->marking_stacks_empty(), "Marking should have completed");
 
-  {
+  if (ClassUnloading) {
     GCTraceTime(Debug, gc, phases) tm_m("Class Unloading", &_gc_timer);
 
     // Follow system dictionary roots and unload classes.
     bool purged_class = SystemDictionary::do_unloading(is_alive_closure());