HDDS-1334. Fix asf license errors in newly added files by HDDS-1234. Contributed by Aravindan Vijayan.

hadoop-ozone/ozone-recon/src/test/java/org/apache/hadoop/ozone/recon/AbstractOMMetadataManagerTest.java

@@ -1,3 +1,21 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.
+ */
+
 package org.apache.hadoop.ozone.recon;
 
 import static org.apache.hadoop.ozone.om.OMConfigKeys.OZONE_OM_DB_DIRS;