aad Apache License for mustache template files
diff --git a/compiler/src/main/resources/DubboGrpcStub.mustache b/compiler/src/main/resources/DubboGrpcStub.mustache
index a02d0c4..38c67c6 100644
--- a/compiler/src/main/resources/DubboGrpcStub.mustache
+++ b/compiler/src/main/resources/DubboGrpcStub.mustache
@@ -1,3 +1,21 @@
+{{!
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+}}
{{#packageName}}
package {{packageName}};
{{/packageName}}
diff --git a/compiler/src/main/resources/DubboStub.mustache b/compiler/src/main/resources/DubboStub.mustache
index 06bd7b4..e2eb2dc 100644
--- a/compiler/src/main/resources/DubboStub.mustache
+++ b/compiler/src/main/resources/DubboStub.mustache
@@ -1,3 +1,21 @@
+{{!
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+}}
{{#packageName}}
package {{packageName}};
{{/packageName}}
diff --git a/compiler/src/main/resources/ReactorDubboGrpcStub.mustache b/compiler/src/main/resources/ReactorDubboGrpcStub.mustache
index 2cf1471..c10e9b2 100644
--- a/compiler/src/main/resources/ReactorDubboGrpcStub.mustache
+++ b/compiler/src/main/resources/ReactorDubboGrpcStub.mustache
@@ -1,3 +1,21 @@
+{{!
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+}}
{{#packageName}}
package {{packageName}};
{{/packageName}}
diff --git a/compiler/src/main/resources/RxDubboGrpcStub.mustache b/compiler/src/main/resources/RxDubboGrpcStub.mustache
index 22c06b0..5bdde58 100644
--- a/compiler/src/main/resources/RxDubboGrpcStub.mustache
+++ b/compiler/src/main/resources/RxDubboGrpcStub.mustache
@@ -1,3 +1,21 @@
+{{!
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+}}
{{#packageName}}
package {{packageName}};
{{/packageName}}
