HDFS-11905. Fix license header inconsistency in hdfs. Contributed by Yeliang Cang.

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/ContextFactory.java

@@ -1,6 +1,4 @@
-/*
- * ContextFactory.java
- *
+/**
  * 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

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/MetricsContext.java

@@ -1,6 +1,4 @@
-/*
- * MetricsContext.java
- *
+/**
  * 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

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/Updater.java

@@ -1,6 +1,4 @@
-/*
- * Updater.java
- *
+/**
  * 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

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/ganglia/GangliaContext.java

@@ -1,6 +1,4 @@
-/*
- * GangliaContext.java
- *
+/**
  * 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

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/ganglia/GangliaContext31.java

@@ -1,6 +1,4 @@
-/*
- * GangliaContext.java
- *
+/**
  * 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

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/spi/AbstractMetricsContext.java

@@ -1,6 +1,4 @@
-/*
- * AbstractMetricsContext.java
- *
+/**
  * 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

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/spi/MetricValue.java

@@ -1,6 +1,4 @@
-/*
- * MetricValue.java
- *
+/**
  * 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

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/spi/MetricsRecordImpl.java

@@ -1,6 +1,4 @@
-/*
- * MetricsRecordImpl.java
- *
+/**
  * 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

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/spi/NullContext.java

@@ -1,5 +1,4 @@
-/*
- * NullContext.java
+/**
  * 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

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/spi/OutputRecord.java

@@ -1,6 +1,4 @@
-/*
- * OutputRecord.java
- *
+/**
  * 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

hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics/spi/Util.java

@@ -1,6 +1,4 @@
-/*
- * Util.java
- *
+/**
  * 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

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/metrics/ganglia/TestGangliaContext.java

@@ -1,6 +1,4 @@
-/*
- * TestGangliaContext.java
- *
+/**
  * 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

hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java

@@ -1,5 +1,5 @@
 /**
-res * Licensed to the Apache Software Foundation (ASF) under one
+ * 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

hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/UpgradeUtilities.java

@@ -1,6 +1,4 @@
-/*
- * UpgradeUtilities.java
- *
+/**
  * 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