Adding Copyright notice to files that are missing it

Change-Id: Ic08aad8906dbd4dd062e7adcec7465475cf2bdda
diff --git a/providers/snmp/alarm/src/test/java/org/onosproject/provider/snmp/alarm/impl/NetSnmpSnmpAlarmProviderTest.java b/providers/snmp/alarm/src/test/java/org/onosproject/provider/snmp/alarm/impl/NetSnmpSnmpAlarmProviderTest.java
index 1442e8d..d63c0fe 100644
--- a/providers/snmp/alarm/src/test/java/org/onosproject/provider/snmp/alarm/impl/NetSnmpSnmpAlarmProviderTest.java
+++ b/providers/snmp/alarm/src/test/java/org/onosproject/provider/snmp/alarm/impl/NetSnmpSnmpAlarmProviderTest.java
@@ -1,9 +1,11 @@
 /*
+ * Copyright 2015-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,