diff --git a/multimedia/media/media_js_standard/audioDecoder/src/main/java/ohos/acts/multimedia/audio/audiodecoder/MainAbility.java b/multimedia/media/media_js_standard/audioDecoder/src/main/java/ohos/acts/multimedia/audio/audiodecoder/MainAbility.java
deleted file mode 100644
index 686df2cdddd4e5ed40aa33bc7a7641ee50744528..0000000000000000000000000000000000000000
--- a/multimedia/media/media_js_standard/audioDecoder/src/main/java/ohos/acts/multimedia/audio/audiodecoder/MainAbility.java
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * 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.
- */
- 
- package ohos.acts.multimedia.audio.audiodecoder;
-
- import ohos.ace.ability.AceAbility;
- import ohos.aafwk.content.Intent;
-
-/*
- * java MainAbility
- */
-
- public class MainAbility extends AceAbility {
-    @Override
-    public void onStart(Intent intent) {
-        super.onStart(intent);
-    }
-
-    @Override
-    public void onStop() {
-        super.onStop();
-    }
- }
diff --git a/multimedia/media/media_js_standard/audioDecoder/src/main/java/ohos/acts/multimedia/audio/audiodecoder/MyApplication.java b/multimedia/media/media_js_standard/audioDecoder/src/main/java/ohos/acts/multimedia/audio/audiodecoder/MyApplication.java
deleted file mode 100644
index dcc6bb38f1f1bcfb059ee87ff16bea4ae691e487..0000000000000000000000000000000000000000
--- a/multimedia/media/media_js_standard/audioDecoder/src/main/java/ohos/acts/multimedia/audio/audiodecoder/MyApplication.java
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * 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.
- */
-
- package ohos.acts.multimedia.audio.audiodecoder;
-
- import ohos.aafwk.ability.AbilityPackage;
-
-/*
- * java MyApplication
- */
-
- public class MyApplication extends AbilityPackage {
-    @Override
-    public void onInitialize() {
-        super.onInitialize();
-    }
- }
diff --git a/multimedia/media/media_js_standard/audioEncoder/src/main/java/ohos/acts/multimedia/audio/audioencoder/MainAbility.java b/multimedia/media/media_js_standard/audioEncoder/src/main/java/ohos/acts/multimedia/audio/audioencoder/MainAbility.java
deleted file mode 100644
index 1ef1275821cb81b8c1c5a09dfedd8d16faf023e8..0000000000000000000000000000000000000000
--- a/multimedia/media/media_js_standard/audioEncoder/src/main/java/ohos/acts/multimedia/audio/audioencoder/MainAbility.java
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * 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.
- */
- 
- package ohos.acts.multimedia.audio.audioencoder;
-
- import ohos.ace.ability.AceAbility;
- import ohos.aafwk.content.Intent;
-
-/*
- * java MainAbility
- */
-
- public class MainAbility extends AceAbility {
-    @Override
-    public void onStart(Intent intent) {
-        super.onStart(intent);
-    }
-
-    @Override
-    public void onStop() {
-        super.onStop();
-    }
- }
diff --git a/multimedia/media/media_js_standard/audioEncoder/src/main/java/ohos/acts/multimedia/audio/audioencoder/MyApplication.java b/multimedia/media/media_js_standard/audioEncoder/src/main/java/ohos/acts/multimedia/audio/audioencoder/MyApplication.java
deleted file mode 100644
index 31c9a8ab20463f644a027d7a25e653512e817f85..0000000000000000000000000000000000000000
--- a/multimedia/media/media_js_standard/audioEncoder/src/main/java/ohos/acts/multimedia/audio/audioencoder/MyApplication.java
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * 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.
- */
-
- package ohos.acts.multimedia.audio.audioencoder;
-
- import ohos.aafwk.ability.AbilityPackage;
-
-/*
- * java MyApplication
- */
-
- public class MyApplication extends AbilityPackage {
-    @Override
-    public void onInitialize() {
-        super.onInitialize();
-    }
- }