diff --git a/runtime/reflection.cc b/runtime/reflection.cc
index 89cdb4d..fe5e104 100644
--- a/runtime/reflection.cc
+++ b/runtime/reflection.cc
@@ -815,6 +815,10 @@
 bool VerifyAccess(mirror::Object* obj, mirror::Class* declaring_class, uint32_t access_flags) {
   NthCallerVisitor visitor(Thread::Current(), 2);
   visitor.WalkStack();
+  if (UNLIKELY(visitor.caller == nullptr)) {
+    // The caller is an attached native thread.
+    return (access_flags & kAccPublic) != 0;
+  }
   mirror::Class* caller_class = visitor.caller->GetDeclaringClass();
 
   if (((access_flags & kAccPublic) != 0) || (caller_class == declaring_class)) {