http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_qubole_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_qubole_operator.py 
b/tests/contrib/operators/test_qubole_operator.py
index 9b5bf3a..ad66f75 100644
--- a/tests/contrib/operators/test_qubole_operator.py
+++ b/tests/contrib/operators/test_qubole_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_s3_list_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_s3_list_operator.py 
b/tests/contrib/operators/test_s3_list_operator.py
index e2e2b74..de95c76 100644
--- a/tests/contrib/operators/test_s3_list_operator.py
+++ b/tests/contrib/operators/test_s3_list_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import unittest
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_s3_to_gcs_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_s3_to_gcs_operator.py 
b/tests/contrib/operators/test_s3_to_gcs_operator.py
index 66c4531..807882c 100644
--- a/tests/contrib/operators/test_s3_to_gcs_operator.py
+++ b/tests/contrib/operators/test_s3_to_gcs_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import unittest
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_sftp_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_sftp_operator.py 
b/tests/contrib/operators/test_sftp_operator.py
index 81e0c9e..8a2fd21 100644
--- a/tests/contrib/operators/test_sftp_operator.py
+++ b/tests/contrib/operators/test_sftp_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import os
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_slack_webhook_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_slack_webhook_operator.py 
b/tests/contrib/operators/test_slack_webhook_operator.py
index 4ea0a60..544b790 100644
--- a/tests/contrib/operators/test_slack_webhook_operator.py
+++ b/tests/contrib/operators/test_slack_webhook_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_snowflake_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_snowflake_operator.py 
b/tests/contrib/operators/test_snowflake_operator.py
index 4febe90..669bd65 100644
--- a/tests/contrib/operators/test_snowflake_operator.py
+++ b/tests/contrib/operators/test_snowflake_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from __future__ import print_function
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_spark_jdbc_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_spark_jdbc_operator.py 
b/tests/contrib/operators/test_spark_jdbc_operator.py
index 5996db0..9f2cd23 100644
--- a/tests/contrib/operators/test_spark_jdbc_operator.py
+++ b/tests/contrib/operators/test_spark_jdbc_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_spark_sql_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_spark_sql_operator.py 
b/tests/contrib/operators/test_spark_sql_operator.py
index 7e71ce6..8fa1428 100644
--- a/tests/contrib/operators/test_spark_sql_operator.py
+++ b/tests/contrib/operators/test_spark_sql_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import datetime

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_spark_submit_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_spark_submit_operator.py 
b/tests/contrib/operators/test_spark_submit_operator.py
index 5903fcd..0a528d9 100644
--- a/tests/contrib/operators/test_spark_submit_operator.py
+++ b/tests/contrib/operators/test_spark_submit_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_sqoop_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_sqoop_operator.py 
b/tests/contrib/operators/test_sqoop_operator.py
index d9e39b5..83ffa6f 100644
--- a/tests/contrib/operators/test_sqoop_operator.py
+++ b/tests/contrib/operators/test_sqoop_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import datetime

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/operators/test_ssh_operator.py
----------------------------------------------------------------------
diff --git a/tests/contrib/operators/test_ssh_operator.py 
b/tests/contrib/operators/test_ssh_operator.py
index 4cec913..b6f6315 100644
--- a/tests/contrib/operators/test_ssh_operator.py
+++ b/tests/contrib/operators/test_ssh_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import unittest
 from base64 import b64encode

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/__init__.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/__init__.py 
b/tests/contrib/sensors/__init__.py
index 9d7677a..4067cc7 100644
--- a/tests/contrib/sensors/__init__.py
+++ b/tests/contrib/sensors/__init__.py
@@ -1,13 +1,18 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_aws_redshift_cluster_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_aws_redshift_cluster_sensor.py 
b/tests/contrib/sensors/test_aws_redshift_cluster_sensor.py
index cec24f2..5bee24a 100644
--- a/tests/contrib/sensors/test_aws_redshift_cluster_sensor.py
+++ b/tests/contrib/sensors/test_aws_redshift_cluster_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_bash_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_bash_sensor.py 
b/tests/contrib/sensors/test_bash_sensor.py
index 5beab54..346be51 100644
--- a/tests/contrib/sensors/test_bash_sensor.py
+++ b/tests/contrib/sensors/test_bash_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_datadog_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_datadog_sensor.py 
b/tests/contrib/sensors/test_datadog_sensor.py
index 8ceb7ca..2f93bb1 100644
--- a/tests/contrib/sensors/test_datadog_sensor.py
+++ b/tests/contrib/sensors/test_datadog_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import json
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_emr_base_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_emr_base_sensor.py 
b/tests/contrib/sensors/test_emr_base_sensor.py
index 587383b..8d00db7 100644
--- a/tests/contrib/sensors/test_emr_base_sensor.py
+++ b/tests/contrib/sensors/test_emr_base_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import unittest
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_emr_job_flow_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_emr_job_flow_sensor.py 
b/tests/contrib/sensors/test_emr_job_flow_sensor.py
index b73c7ea..a66e52f 100644
--- a/tests/contrib/sensors/test_emr_job_flow_sensor.py
+++ b/tests/contrib/sensors/test_emr_job_flow_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import unittest
 import datetime

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_emr_step_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_emr_step_sensor.py 
b/tests/contrib/sensors/test_emr_step_sensor.py
index 192acd5..7f72c73 100644
--- a/tests/contrib/sensors/test_emr_step_sensor.py
+++ b/tests/contrib/sensors/test_emr_step_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import unittest
 from datetime import datetime

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_file_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_file_sensor.py 
b/tests/contrib/sensors/test_file_sensor.py
index 5efdd58..d78400e 100644
--- a/tests/contrib/sensors/test_file_sensor.py
+++ b/tests/contrib/sensors/test_file_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_ftp_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_ftp_sensor.py 
b/tests/contrib/sensors/test_ftp_sensor.py
index f3aff9b..cf0fdb4 100644
--- a/tests/contrib/sensors/test_ftp_sensor.py
+++ b/tests/contrib/sensors/test_ftp_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import unittest
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_hdfs_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_hdfs_sensor.py 
b/tests/contrib/sensors/test_hdfs_sensor.py
index cd3c7a3..26ce557 100644
--- a/tests/contrib/sensors/test_hdfs_sensor.py
+++ b/tests/contrib/sensors/test_hdfs_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 import logging
 import unittest
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_jira_sensor_test.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_jira_sensor_test.py 
b/tests/contrib/sensors/test_jira_sensor_test.py
index 4390f34..06a7713 100644
--- a/tests/contrib/sensors/test_jira_sensor_test.py
+++ b/tests/contrib/sensors/test_jira_sensor_test.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_pubsub_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_pubsub_sensor.py 
b/tests/contrib/sensors/test_pubsub_sensor.py
index dcbbf6e..f1f8fad 100644
--- a/tests/contrib/sensors/test_pubsub_sensor.py
+++ b/tests/contrib/sensors/test_pubsub_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from __future__ import unicode_literals
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_qubole_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_qubole_sensor.py 
b/tests/contrib/sensors/test_qubole_sensor.py
index 88c5be6..1f28c3d 100644
--- a/tests/contrib/sensors/test_qubole_sensor.py
+++ b/tests/contrib/sensors/test_qubole_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_redis_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_redis_sensor.py 
b/tests/contrib/sensors/test_redis_sensor.py
index d627501..b931b49 100644
--- a/tests/contrib/sensors/test_redis_sensor.py
+++ b/tests/contrib/sensors/test_redis_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_sftp_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_sftp_sensor.py 
b/tests/contrib/sensors/test_sftp_sensor.py
index 091b95f..1c13f3f 100644
--- a/tests/contrib/sensors/test_sftp_sensor.py
+++ b/tests/contrib/sensors/test_sftp_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import unittest
 from mock import patch

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/sensors/test_wasb_sensor.py
----------------------------------------------------------------------
diff --git a/tests/contrib/sensors/test_wasb_sensor.py 
b/tests/contrib/sensors/test_wasb_sensor.py
index a11d740..f715b01 100644
--- a/tests/contrib/sensors/test_wasb_sensor.py
+++ b/tests/contrib/sensors/test_wasb_sensor.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import unittest

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/utils/__init__.py
----------------------------------------------------------------------
diff --git a/tests/contrib/utils/__init__.py b/tests/contrib/utils/__init__.py
index cdd2147..fc532e6 100644
--- a/tests/contrib/utils/__init__.py
+++ b/tests/contrib/utils/__init__.py
@@ -1,15 +1,20 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/contrib/utils/test_sendgrid.py
----------------------------------------------------------------------
diff --git a/tests/contrib/utils/test_sendgrid.py 
b/tests/contrib/utils/test_sendgrid.py
index 204aaa3..997bc55 100644
--- a/tests/contrib/utils/test_sendgrid.py
+++ b/tests/contrib/utils/test_sendgrid.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #
 
 import copy

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/core.py
----------------------------------------------------------------------
diff --git a/tests/core.py b/tests/core.py
index b154bc0..26ba23b 100644
--- a/tests/core.py
+++ b/tests/core.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from __future__ import print_function
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/no_dags.py
----------------------------------------------------------------------
diff --git a/tests/dags/no_dags.py b/tests/dags/no_dags.py
index 759b563..db5ba59 100644
--- a/tests/dags/no_dags.py
+++ b/tests/dags/no_dags.py
@@ -1,14 +1,19 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 #

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_backfill_pooled_tasks.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_backfill_pooled_tasks.py 
b/tests/dags/test_backfill_pooled_tasks.py
index 4b2ba8f..4b4f2a8 100644
--- a/tests/dags/test_backfill_pooled_tasks.py
+++ b/tests/dags/test_backfill_pooled_tasks.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 
 """

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_cli_triggered_dags.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_cli_triggered_dags.py 
b/tests/dags/test_cli_triggered_dags.py
index 94afe0e..b0683be 100644
--- a/tests/dags/test_cli_triggered_dags.py
+++ b/tests/dags/test_cli_triggered_dags.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 
 from datetime import timedelta

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_default_impersonation.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_default_impersonation.py 
b/tests/dags/test_default_impersonation.py
index 41cca00..42b7198 100644
--- a/tests/dags/test_default_impersonation.py
+++ b/tests/dags/test_default_impersonation.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from airflow.models import DAG
 from airflow.operators.bash_operator import BashOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_double_trigger.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_double_trigger.py 
b/tests/dags/test_double_trigger.py
index b58f5c9..eea0aa1 100644
--- a/tests/dags/test_double_trigger.py
+++ b/tests/dags/test_double_trigger.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 from datetime import datetime
 
 from airflow.models import DAG

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_example_bash_operator.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_example_bash_operator.py 
b/tests/dags/test_example_bash_operator.py
index ad03353..94b89ff 100644
--- a/tests/dags/test_example_bash_operator.py
+++ b/tests/dags/test_example_bash_operator.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 import airflow
 from builtins import range

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_impersonation.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_impersonation.py b/tests/dags/test_impersonation.py
index 3727903..4e554e1 100644
--- a/tests/dags/test_impersonation.py
+++ b/tests/dags/test_impersonation.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from airflow.models import DAG
 from airflow.operators.bash_operator import BashOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_impersonation_custom.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_impersonation_custom.py 
b/tests/dags/test_impersonation_custom.py
index b6dd9c8..43a5235 100644
--- a/tests/dags/test_impersonation_custom.py
+++ b/tests/dags/test_impersonation_custom.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from airflow.models import DAG
 from airflow.operators.python_operator import PythonOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_impersonation_subdag.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_impersonation_subdag.py 
b/tests/dags/test_impersonation_subdag.py
index 34317fb..423c552 100644
--- a/tests/dags/test_impersonation_subdag.py
+++ b/tests/dags/test_impersonation_subdag.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from datetime import datetime
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_issue_1225.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_issue_1225.py b/tests/dags/test_issue_1225.py
index d01fd79..b7bd5d5 100644
--- a/tests/dags/test_issue_1225.py
+++ b/tests/dags/test_issue_1225.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 
 """

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_latest_runs.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_latest_runs.py b/tests/dags/test_latest_runs.py
index dd04c0e..a39a6bd 100644
--- a/tests/dags/test_latest_runs.py
+++ b/tests/dags/test_latest_runs.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 
 from datetime import datetime

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_mark_success.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_mark_success.py b/tests/dags/test_mark_success.py
index 56a5662..50ba32d 100644
--- a/tests/dags/test_mark_success.py
+++ b/tests/dags/test_mark_success.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 from datetime import datetime
 
 from airflow.models import DAG

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_no_impersonation.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_no_impersonation.py 
b/tests/dags/test_no_impersonation.py
index 0fc63da..cb5bb66 100644
--- a/tests/dags/test_no_impersonation.py
+++ b/tests/dags/test_no_impersonation.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from airflow.models import DAG
 from airflow.operators.bash_operator import BashOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_on_kill.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_on_kill.py b/tests/dags/test_on_kill.py
index 8c57096..353b457 100644
--- a/tests/dags/test_on_kill.py
+++ b/tests/dags/test_on_kill.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 import time
 
 from airflow.models import DAG

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_retry_handling_job.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_retry_handling_job.py 
b/tests/dags/test_retry_handling_job.py
index 19e829d..aae072e 100644
--- a/tests/dags/test_retry_handling_job.py
+++ b/tests/dags/test_retry_handling_job.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from airflow import DAG
 from airflow.operators.bash_operator import BashOperator

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags/test_scheduler_dags.py
----------------------------------------------------------------------
diff --git a/tests/dags/test_scheduler_dags.py 
b/tests/dags/test_scheduler_dags.py
index fad0568..9900866 100644
--- a/tests/dags/test_scheduler_dags.py
+++ b/tests/dags/test_scheduler_dags.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from datetime import datetime
 

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags_with_system_exit/a_system_exit.py
----------------------------------------------------------------------
diff --git a/tests/dags_with_system_exit/a_system_exit.py 
b/tests/dags_with_system_exit/a_system_exit.py
index 7012550..42d96a3 100644
--- a/tests/dags_with_system_exit/a_system_exit.py
+++ b/tests/dags_with_system_exit/a_system_exit.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 # Tests to make sure that a system exit won't cause the scheduler to fail
 # Starts with 'a' to get listed first.

http://git-wip-us.apache.org/repos/asf/incubator-airflow/blob/c7a472ed/tests/dags_with_system_exit/b_test_scheduler_dags.py
----------------------------------------------------------------------
diff --git a/tests/dags_with_system_exit/b_test_scheduler_dags.py 
b/tests/dags_with_system_exit/b_test_scheduler_dags.py
index ed6904f..2d925cd 100644
--- a/tests/dags_with_system_exit/b_test_scheduler_dags.py
+++ b/tests/dags_with_system_exit/b_test_scheduler_dags.py
@@ -1,16 +1,21 @@
 # -*- coding: utf-8 -*-
 #
-# 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.
+# 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.
 
 from datetime import datetime
 


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