*** old/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp	Mon May 27 15:27:56 2013
--- new/src/share/vm/gc_implementation/parallelScavenge/psParallelCompact.cpp	Mon May 27 15:27:56 2013

*** 2336,2345 ****
--- 2336,2346 ----
      Threads::create_thread_roots_marking_tasks(q);
      q->enqueue(new MarkFromRootsTask(MarkFromRootsTask::object_synchronizer));
      q->enqueue(new MarkFromRootsTask(MarkFromRootsTask::flat_profiler));
      q->enqueue(new MarkFromRootsTask(MarkFromRootsTask::management));
      q->enqueue(new MarkFromRootsTask(MarkFromRootsTask::system_dictionary));
+     q->enqueue(new MarkFromRootsTask(MarkFromRootsTask::class_loader_data));
      q->enqueue(new MarkFromRootsTask(MarkFromRootsTask::jvmti));
      q->enqueue(new MarkFromRootsTask(MarkFromRootsTask::code_cache));
  
      if (active_gc_threads > 1) {
        for (uint j = 0; j < active_gc_threads; j++) {