8269882: stack-use-after-scope in NewObjectA

RealCLanger · RealCLanger · commit de786bbcc1aa · 2021-07-23T11:08:29.000Z
Backport-of: 20eba35515073c4daf1fa8ac78a37196ea196690
diff --git a/src/hotspot/share/prims/jni.cpp b/src/hotspot/share/prims/jni.cpp
@@ -977,7 +977,7 @@ JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID,
   HOTSPOT_JNI_NEWOBJECTA_ENTRY(env, clazz, (uintptr_t) methodID);
 
   jobject obj = NULL;
-  DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);
+  DT_RETURN_MARK(NewObjectA, jobject, (const jobject&)obj);
 
   instanceOop i = InstanceKlass::allocate_instance(JNIHandles::resolve_non_null(clazz), CHECK_NULL);
   obj = JNIHandles::make_local(THREAD, i);
