diff --git a/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/InvalidApplicationException.java b/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/InvalidApplicationException.java
index 290f537..afa4a85 100644
--- a/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/InvalidApplicationException.java
+++ b/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/InvalidApplicationException.java
@@ -1,11 +1,12 @@
-/**
+/*
  * Copyright 2016-present Open Networking Laboratory
+ *
  * 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
-
+ *
+ *     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.
diff --git a/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/InvalidGroupIdException.java b/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/InvalidGroupIdException.java
index fd0657b..da671b7 100644
--- a/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/InvalidGroupIdException.java
+++ b/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/InvalidGroupIdException.java
@@ -1,11 +1,12 @@
-/**
+/*
  * Copyright 2016-present Open Networking Laboratory
+ *
  * 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
-
+ *
+ *     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.
diff --git a/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/UnsupportedEventException.java b/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/UnsupportedEventException.java
index 73312b4..4e262da 100644
--- a/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/UnsupportedEventException.java
+++ b/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/UnsupportedEventException.java
@@ -1,11 +1,12 @@
-/**
+/*
  * Copyright 2016-present Open Networking Laboratory
+ *
  * 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
-
+ *
+ *     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.
diff --git a/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/package-info.java b/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/package-info.java
index 35773da..240a37c 100644
--- a/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/package-info.java
+++ b/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/errors/package-info.java
@@ -1,15 +1,17 @@
-/**
- * Copyright 2016-present Open Networking Laboratory 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
+/*
+ * Copyright 2016-present Open Networking Laboratory
  *
- * http://www.apache.org/licenses/LICENSE-2.0
+ * 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.
+ * 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.
  */
 
 /**