--- old/src/share/vm/prims/whitebox.cpp	2013-05-13 16:34:47.442121000 -0400
+++ new/src/share/vm/prims/whitebox.cpp	2013-05-13 16:34:46.402969000 -0400
@@ -141,7 +141,10 @@
 
   if (MemTracker::is_on() && !MemTracker::shutdown_in_progress()) {
     addr = (jlong)(uintptr_t)os::reserve_memory(size);
-    MemTracker::record_virtual_memory_type((address)addr, mtTest);
+    if (addr) {
+      NMTTrackOp op(NMTTrackOp::TypeOp);
+      op.execute_op((address)addr, 0, mtTest);
+    }
   }
 
   return addr;
@@ -150,7 +153,6 @@
 
 WB_ENTRY(void, WB_NMTCommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size))
   os::commit_memory((char *)(uintptr_t)addr, size);
-  MemTracker::record_virtual_memory_type((address)(uintptr_t)addr, mtTest);
 WB_END
 
 WB_ENTRY(void, WB_NMTUncommitMemory(JNIEnv* env, jobject o, jlong addr, jlong size))