8329109: Threads::print_on() tries to print CPU time for terminated GC threads

Backport-of: c1cfb43d8de8d0eed01b9bb6aa1202dc7cbff007

Author: Liang Mao

src/hotspot/share/runtime/threads.cpp

@@ -1319,10 +1319,7 @@ void Threads::print_on(outputStream* st, bool print_stacks,
   }
 
   PrintOnClosure cl(st);
-  cl.do_thread(VMThread::vm_thread());
-  Universe::heap()->gc_threads_do(&cl);
-  cl.do_thread(WatcherThread::watcher_thread());
-  cl.do_thread(AsyncLogWriter::instance());
+  non_java_threads_do(&cl);
 
   st->flush();
 }