2501     jvmtiHeapCallbacks heap_callbacks;  in classInstances()  local
2532     (void)memset(&heap_callbacks,0,sizeof(heap_callbacks));  in classInstances()
2535     heap_callbacks.heap_reference_callback = &cbObjectTagInstance;  in classInstances()
2539                  (jvmti, 0, klass, NULL, &heap_callbacks, &data);  in classInstances()
2679     jvmtiHeapCallbacks heap_callbacks;  in classInstanceCounts()  local
2725         (void)memset(&heap_callbacks,0,sizeof(heap_callbacks));  in classInstanceCounts()
2745             heap_callbacks.heap_reference_callback = &cbObjectCounterFromRef;  in classInstanceCounts()
2750                            NULL, NULL, &heap_callbacks, &data);  in classInstanceCounts()
2765                 heap_callbacks.heap_iteration_callback = &cbObjectCounter;  in classInstanceCounts()
2770                                NULL, &heap_callbacks, &data);  in classInstanceCounts()
2849     jvmtiHeapCallbacks heap_callbacks;  in objectReferrers()  local
2887         (void)memset(&heap_callbacks,0,sizeof(heap_callbacks));  in objectReferrers()
2890         heap_callbacks.heap_reference_callback = &cbObjectTagReferrer;  in objectReferrers()
2895                        NULL, NULL, &heap_callbacks, &data);  in objectReferrers()