src/share/vm/runtime/thread.cpp

*** 3675,3684 ****
--- 3675,3689 ----
    if (Arguments::has_profile())       FlatProfiler::engage(main_thread, true);
    if (MemProfiling)                   MemProfiler::engage();
    StatSampler::engage();
    if (CheckJNICalls)                  JniPeriodicChecker::engage();
  
+   if (AsyncGCLogging && Arguments::gc_log_filename() != NULL) {
+     PeriodicTask* task = new GCLogFlusher(GCLogFlushInterval, static_cast<gcLogFileStream* >(gclog_or_tty));
+     task->enroll();
+   }
+ 
    BiasedLocking::init();
  
  #if INCLUDE_RTM_OPT
    RTMLockingCounters::init();
  #endif