--- old/src/share/vm/runtime/perfData.hpp	2017-06-14 11:45:07.037092460 +0900
+++ new/src/share/vm/runtime/perfData.hpp	2017-06-14 11:45:06.952090756 +0900
@@ -916,22 +916,22 @@
 
   public:
     inline PerfTraceTime(PerfLongCounter* timerp) : _timerp(timerp), _recursion_counter(NULL) {
-      if (!UsePerfData) return;
+      if (!UsePerfData || (_timerp == NULL)) return;
       _t.start();
     }
 
     inline PerfTraceTime(PerfLongCounter* timerp, int* recursion_counter) : _timerp(timerp), _recursion_counter(recursion_counter) {
-      if (!UsePerfData || (_recursion_counter != NULL &&
-                           (*_recursion_counter)++ > 0)) return;
+      if (!UsePerfData || (_timerp == NULL) ||
+          (_recursion_counter != NULL && (*_recursion_counter)++ > 0)) return;
       _t.start();
     }
 
-    inline void suspend() { if (!UsePerfData) return; _t.stop(); }
-    inline void resume() { if (!UsePerfData) return; _t.start(); }
+    inline void suspend() { if (!UsePerfData || (_timerp == NULL)) return; _t.stop(); }
+    inline void resume() { if (!UsePerfData || (_timerp == NULL)) return; _t.start(); }
 
     inline ~PerfTraceTime() {
-      if (!UsePerfData || (_recursion_counter != NULL &&
-                           --(*_recursion_counter) > 0)) return;
+      if (!UsePerfData || (_timerp == NULL) ||
+          (_recursion_counter != NULL && --(*_recursion_counter) > 0)) return;
       _t.stop();
       _timerp->inc(_t.ticks());
     }
@@ -963,12 +963,12 @@
 
   public:
     inline PerfTraceTimedEvent(PerfLongCounter* timerp, PerfLongCounter* eventp): PerfTraceTime(timerp), _eventp(eventp) {
-      if (!UsePerfData) return;
+      if (!UsePerfData || (timerp == NULL)) return;
       _eventp->inc();
     }
 
     inline PerfTraceTimedEvent(PerfLongCounter* timerp, PerfLongCounter* eventp, int* recursion_counter): PerfTraceTime(timerp, recursion_counter), _eventp(eventp) {
-      if (!UsePerfData) return;
+      if (!UsePerfData || (timerp == NULL)) return;
       _eventp->inc();
     }
 };