--- old/src/share/vm/runtime/perfMemory.hpp	2017-06-13 13:59:38.210442371 +0900
+++ new/src/share/vm/runtime/perfMemory.hpp	2017-06-13 13:59:38.119440424 +0900
@@ -120,6 +120,7 @@
     static size_t _capacity;
     static PerfDataPrologue*  _prologue;
     static jint   _initialized;
+    static bool   _destroyed;
 
     static void create_memory_region(size_t sizep);
     static void delete_memory_region();
@@ -136,6 +137,7 @@
     static size_t used() { return (size_t) (_top - _start); }
     static size_t capacity() { return _capacity; }
     static bool is_initialized() { return _initialized != 0; }
+    static bool is_destroyed() { return _destroyed; }
     static bool contains(char* addr) {
       return ((_start != NULL) && (addr >= _start) && (addr < _end));
     }