diff --git a/.rat-excludes b/.rat-excludes
index 2db5fdc..998fda4 100644
--- a/.rat-excludes
+++ b/.rat-excludes
@@ -1,5 +1,7 @@
+# Files start with .
 \..*
 
+# Data/doc files
 .*\.conf
 .*\.json
 .*\.md
@@ -8,12 +10,9 @@
 .*\.patch
 
 _helpers\.tpl
-ADOPTERS\.md
-CONTRIBUTING\.md
 autogen\.sh
 description
 heron\.iml
-test\.conf
 
 # UI resources
 jquery.*\.js
@@ -31,6 +30,7 @@
 bazel-.*
 m4
 website
+META-INF
 
 # Thirdparty
 cpplint\.py
diff --git a/heron/api/src/META-INF/services/javax.annotation.processing.Processor b/heron/api/src/META-INF/services/javax.annotation.processing.Processor
index c7ce851..1b7cc84 100644
--- a/heron/api/src/META-INF/services/javax.annotation.processing.Processor
+++ b/heron/api/src/META-INF/services/javax.annotation.processing.Processor
@@ -1,20 +1 @@
-/**
- * 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.
- */
-
 org.apache.heron.classification.HeronAnnotationProcessor