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8360664: Null pointer dereference in src/hotspot/share/prims/jvmtiTagMap.cpp in IterateOverHeapObjectClosure::do_object() #26002

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8360664: Null pointer dereference in src/hotspot/share/prims/jvmtiTagMap.cpp in IterateOverHeapObjectClosure::do_object() #26002

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6 changes: 4 additions & 2 deletions src/hotspot/share/prims/jvmtiTagMap.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -944,6 +944,7 @@ class IterateOverHeapObjectClosure: public ObjectClosure {

// invoked for each object in the heap
void IterateOverHeapObjectClosure::do_object(oop o) {
if (o == nullptr) return;
// check if iteration has been halted
if (is_iteration_aborted()) return;

Expand All @@ -953,7 +954,7 @@ void IterateOverHeapObjectClosure::do_object(oop o) {
}

// skip if object is a dormant shared object whose mirror hasn't been loaded
if (o != nullptr && o->klass()->java_mirror() == nullptr) {
if (o->klass()->java_mirror() == nullptr) {
log_debug(aot, heap)("skipped dormant archived object " INTPTR_FORMAT " (%s)", p2i(o),
o->klass()->external_name());
return;
Expand Down Expand Up @@ -1032,14 +1033,15 @@ class IterateThroughHeapObjectClosure: public ObjectClosure {

// invoked for each object in the heap
void IterateThroughHeapObjectClosure::do_object(oop obj) {
if (obj == nullptr) return;
// check if iteration has been halted
if (is_iteration_aborted()) return;

// apply class filter
if (is_filtered_by_klass_filter(obj, klass())) return;

// skip if object is a dormant shared object whose mirror hasn't been loaded
if (obj != nullptr && obj->klass()->java_mirror() == nullptr) {
if (obj->klass()->java_mirror() == nullptr) {
log_debug(aot, heap)("skipped dormant archived object " INTPTR_FORMAT " (%s)", p2i(obj),
obj->klass()->external_name());
return;
Expand Down