diff --git a/frameworks/ets/ani/ani_common/src/ani_common_util.cpp b/frameworks/ets/ani/ani_common/src/ani_common_util.cpp
index b199cdbe31e23dd09116b303257a17ad9bb687ee..f24a6c079c50948dbf4294f12512b71d511a269a 100644
--- a/frameworks/ets/ani/ani_common/src/ani_common_util.cpp
+++ b/frameworks/ets/ani/ani_common/src/ani_common_util.cpp
@@ -182,19 +182,6 @@ bool SetFieldStringByName(ani_env *env, ani_class cls, ani_object object, const
         TAG_LOGE(AAFwkTag::ANI, "status: %{public}d", status);
         return false;
     }
-
-    if (value.empty()) {
-        ani_ref nullRef = nullptr;
-        if ((status = env->GetNull(&nullRef)) != ANI_OK) {
-            TAG_LOGE(AAFwkTag::ANI, "status: %{public}d", status);
-            return false;
-        }
-        if ((status = env->Object_SetField_Ref(object, field, nullRef)) != ANI_OK) {
-            TAG_LOGE(AAFwkTag::ANI, "status: %{public}d", status);
-            return false;
-        }
-        return true;
-    }
     ani_string aniStr = nullptr;
     if ((status = env->String_NewUTF8(value.c_str(), value.size(), &aniStr)) != ANI_OK) {
         TAG_LOGE(AAFwkTag::ANI, "status: %{public}d", status);
diff --git a/frameworks/ets/ani/wantagent/src/ani_want_agent.cpp b/frameworks/ets/ani/wantagent/src/ani_want_agent.cpp
index 62651c00656194b8c2921553bc538a6b8a81a640..6135f178efe2fb6234ecf0960092e451ca39e49a 100644
--- a/frameworks/ets/ani/wantagent/src/ani_want_agent.cpp
+++ b/frameworks/ets/ani/wantagent/src/ani_want_agent.cpp
@@ -138,6 +138,12 @@ void TriggerCompleteCallBack::OnSendFinished(
     dataWorker->call = triggerCompleteInfo_.call;
     if (triggerCompleteInfo_.wantAgent != nullptr) {
         dataWorker->wantAgent = new (std::nothrow) WantAgent(triggerCompleteInfo_.wantAgent->GetPendingWant());
+        if (dataWorker->wantAgent == nullptr) {
+            TAG_LOGE(AAFwkTag::WANTAGENT, "null wantAgent");
+            delete dataWorker;
+            dataWorker = nullptr;
+            return;
+        }
     }
     if (!OnSendFinishedCallback(dataWorker)) {
         if (dataWorker->wantAgent != nullptr) {