diff --git a/frameworks/innerkitsimpl/distributeddatafwk/src/change_notification.cpp b/frameworks/innerkitsimpl/distributeddatafwk/src/change_notification.cpp
index 1a7a14a093d088685e72382d77d515ce462807c4..6580f1090c6be8d70a44690f2960da8c013719b7 100644
--- a/frameworks/innerkitsimpl/distributeddatafwk/src/change_notification.cpp
+++ b/frameworks/innerkitsimpl/distributeddatafwk/src/change_notification.cpp
@@ -151,8 +151,12 @@ ChangeNotification *ChangeNotification::Unmarshalling(Parcel &parcel)
     std::string deviceId = parcel.ReadString();
     bool isClear = parcel.ReadBool();
 
-    return new ChangeNotification(std::move(insertEntries), std::move(updateEntries), std::move(deleteEntries),
-        deviceId, isClear);
+    auto result = new(std::nothrow) ChangeNotification(std::move(insertEntries), std::move(updateEntries),
+        std::move(deleteEntries), deviceId, isClear);
+    if (result == nullptr) {
+        return nullptr
+    }
+    return result;
 }
 }  // namespace DistributedKv
 }  // namespace OHOS
diff --git a/frameworks/innerkitsimpl/distributeddatafwk/src/delegate_mgr_callback.h b/frameworks/innerkitsimpl/distributeddatafwk/src/delegate_mgr_callback.h
index 88fa29abde12ea461302cc4ee9fc0022bbe1cf80..02c28f3e5b70381c421d54c9df9a75bdcd12bb68 100644
--- a/frameworks/innerkitsimpl/distributeddatafwk/src/delegate_mgr_callback.h
+++ b/frameworks/innerkitsimpl/distributeddatafwk/src/delegate_mgr_callback.h
@@ -32,11 +32,7 @@ public:
         if (IsDestruct()) {
             return false;
         }
-        DistributedDB::DBStatus ret = delegate_->GetKvStoreDiskSize(storeId, size);
-        if (ret != DistributedDB::DBStatus::OK) {
-            return false;
-        }
-        return true;
+        return delegate_->GetKvStoreDiskSize(storeId, size) == DistributedDB::DBStatus::OK;
     }
 
     void GetKvStoreKeys(std::vector<DistributedKv::StoreInfo> &entries) override
diff --git a/frameworks/innerkitsimpl/distributeddatafwk/src/ikvstore.cpp b/frameworks/innerkitsimpl/distributeddatafwk/src/ikvstore.cpp
index 809af1dec1958c3a9663fe86f53fd86cf18dca04..f37316e8a36ec0b80a9c2710f3969a06b6f7afb6 100644
--- a/frameworks/innerkitsimpl/distributeddatafwk/src/ikvstore.cpp
+++ b/frameworks/innerkitsimpl/distributeddatafwk/src/ikvstore.cpp
@@ -139,7 +139,8 @@ Status KvStoreImplProxy::Put(const Key &key, const Value &value)
         return static_cast<Status>(reply.ReadInt32());
     }
     ZLOGI("putting large data.");
-    std::unique_ptr<uint8_t, void(*)(uint8_t *)> buffer(new uint8_t[bufferSize], [](uint8_t *ptr) { delete[] ptr; });
+    std::unique_ptr<uint8_t, void(*)(uint8_t *)> buffer(new(std::nothrow) uint8_t[bufferSize], [](uint8_t *ptr)
+        { delete[] ptr; });
     if (buffer == nullptr) {
         ZLOGW("buffer is null");
         return Status::ERROR;
diff --git a/frameworks/jskitsimpl/distributeddata/src/js_query.cpp b/frameworks/jskitsimpl/distributeddata/src/js_query.cpp
index 4b55d0ef928d2501ab4f3a84f508a5ad1a8730a5..2abc634ade44ce6a23049eef5295801ba3929725 100644
--- a/frameworks/jskitsimpl/distributeddata/src/js_query.cpp
+++ b/frameworks/jskitsimpl/distributeddata/src/js_query.cpp
@@ -286,7 +286,6 @@ napi_value JsQuery::IsNull(napi_env env, napi_callback_info info)
 /*
  * InNumber / NotInNumber
  * [NOTES] Recommended to use the napi_typedarray_type
- * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects#indexed_collections
  */
 enum class NumberType : uint8_t {
     NUMBER_INT,
diff --git a/test/resource/distributeddataservice/config/trans_permission.json b/test/resource/distributeddataservice/config/trans_permission.json
deleted file mode 100755
index fd9b0dcd57fb0faf1c5b491c99583baf83a19185..0000000000000000000000000000000000000000
--- a/test/resource/distributeddataservice/config/trans_permission.json
+++ /dev/null
@@ -1,130 +0,0 @@
-[
-  {
-    "SESSION_NAME": "ohos\\.distributedschedule\\.foundation.*",
-    "REGEXP": "true",
-    "DEVID": "UUID",
-    "APP_INFO": [
-      {
-        "TYPE": "system_app",
-        "UID": "1000",
-        "ACTIONS": "create,open"
-      }
-    ]
-  },
-  {
-    "SESSION_NAME": "com\\.huawei\\.def.*",
-    "REGEXP": "true",
-    "DEVID": "NETWORKID",
-    "APP_INFO": [
-      {
-        "TYPE": "system_app",
-        "UID": "1000",
-        "PKG_NAME": "com.huawei.def",
-        "ACTIONS": "create,open"
-      }
-    ]
-  },
-  {
-    "SESSION_NAME": "com\\.huawei\\.hwddmp.*",
-    "REGEXP": "true",
-    "DEVID": "UUID",
-    "APP_INFO": [
-      {
-        "TYPE": "system_app",
-        "UID": "1000",
-        "PKG_NAME": "com.huawei.hwddmp",
-        "ACTIONS": "create,open"
-      }
-    ]
-  },
-  {
-    "SESSION_NAME": "com.huawei.devicegroupmanage",
-    "DEVID": "UDID",
-    "APP_INFO": [
-      {
-        "TYPE": "system_app",
-        "PKG_NAME": "com.huawei.devicegroupmanage",
-        "ACTIONS": "create,open"
-      }
-    ]
-  },
-  {
-    "SESSION_NAME": "DBinderService",
-    "DEVID": "NETWORKID",
-    "APP_INFO": [
-      {
-        "TYPE": "native_app",
-        "UID": "1000",
-        "PKG_NAME": "DBinderService",
-        "ACTIONS": "create,open"
-      }
-    ]
-  },
-  {
-    "SESSION_NAME": "DBinder.*",
-    "REGEXP": "true",
-    "DEVID": "NETWORKID",
-    "SEC_LEVEL": "public",
-    "APP_INFO": [
-      {
-        "TYPE": "granted_app",
-        "PKG_NAME": "DBinderBus",
-        "ACTIONS": "open"
-      }
-    ]
-  },
-  {
-    "SESSION_NAME": "distributeddata.*",
-    "REGEXP": "true",
-    "DEVID": "UUID",
-    "APP_INFO": [
-      {
-        "TYPE": "system_app",
-        "UID": "1000",
-        "PKG_NAME": "com.huawei.hwddmp",
-        "ACTIONS": "create,open"
-      },
-      {
-        "TYPE": "system_app",
-        "UID": "0",
-        "ACTIONS": "create,open"
-      }
-    ]
-  },
-  {
-    "SESSION_NAME": "SystemAbilityManager_DDC.*",
-    "REGEXP": "true",
-    "DEVID": "UUID",
-    "APP_INFO": [
-      {
-        "TYPE": "native_app",
-        "UID": "1000",
-        "ACTIONS": "create,open"
-      }
-    ]
-  },
-  {
-    "SESSION_NAME": "hiview_distributed_network_softbus",
-    "DEVID": "NETWORKID",
-    "APP_INFO": [
-      {
-        "TYPE": "native_app",
-        "UID": "0",
-        "PKG_NAME": "hiview_distributed_network_softbus",
-        "ACTIONS": "create,open"
-      }
-    ]
-  },
-  {
-    "SESSION_NAME": "DistributedFileService.*",
-    "REGEXP": "true",
-    "DEVID": "UUID",
-    "APP_INFO": [
-      {
-        "TYPE": "native_app",
-        "UID": "1000",
-        "ACTIONS": "create,open"
-      }
-    ]
-  }
-]
\ No newline at end of file
diff --git a/test/resource/distributeddataservice/ohos_test.xml b/test/resource/distributeddataservice/ohos_test.xml
deleted file mode 100755
index e89ac8c4221389616e3397e1c0b673c0f2425718..0000000000000000000000000000000000000000
--- a/test/resource/distributeddataservice/ohos_test.xml
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
- Copyright (c) 2021 Huawei Device Co., Ltd.
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
--->
-<configuration ver="2.0">
-    <target name="KvStoreBackupTest">
-        <preparer>
-            <option name="push" value="config/trans_permission.json -> /system/etc/isoftbus/" src="res"/>
-        </preparer>
-    </target>
-</configuration>