Method JSObjectFinalizer

test-app/runtime/src/main/cpp/ObjectManager.cpp:360–392

}

void ObjectManager::JSObjectFinalizer(Isolate* isolate,
                                      ObjectWeakCallbackState* callbackState) {
  HandleScope handleScope(m_isolate);
  Persistent<Object>* po = callbackState->target;
  auto jsInstanceInfo = GetJSInstanceInfoFromRuntimeObject(po->Get(m_isolate));

  if (jsInstanceInfo == nullptr) {
    po->Reset();
    delete po;
    delete callbackState;
    return;
  }

  auto javaObjectID = jsInstanceInfo->JavaObjectID;
  JEnv env;
  jboolean isJavaInstanceAlive = env.CallBooleanMethod(
      m_javaRuntimeObject, MAKE_INSTANCE_WEAK_AND_CHECK_IF_ALIVE_METHOD_ID,
      javaObjectID);
  if (isJavaInstanceAlive) {
    // If the Java instance is alive, keep the JavaScript instance alive.
    po->SetWeak(callbackState, JSObjectFinalizerStatic,
                WeakCallbackType::kFinalizer);
  } else {
    // If the Java instance is dead, this JavaScript instance can be let die.
    delete jsInstanceInfo;
    auto jsInfoIdx = static_cast<int>(MetadataNodeKeys::JsInfo);
    po->Get(m_isolate)->SetInternalField(jsInfoIdx, Undefined(m_isolate));
    po->Reset();
    m_idToObject.erase(javaObjectID);
    delete po;
    delete callbackState;
  }
}

/*
 * When JS GC happens change state of the java counterpart to mirror state of JS