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https://issues.apache.org/jira/browse/HADOOP-10101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13823585#comment-13823585
 ] 

Steve Loughran commented on HADOOP-10101:
-----------------------------------------

Deprecation warnings of
* com.google.common.collect.ComparisonChain
* com.google.common.base.Stopwatch

Replacing them with their successors would change more code but reduce the 
effort on the next guava update, when perhaps these files go away completely
{code}
291a292
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/VersionUtil.java:[112,6]
>  [deprecation] compare(boolean,boolean) in 
> com.google.common.collect.ComparisonChain has been deprecated
293a295,296
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/JvmPauseMonitor.java:[156,21]
>  [deprecation] Stopwatch() in com.google.common.base.Stopwatch has been 
> deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/JvmPauseMonitor.java:[165,32]
>  [deprecation] elapsedMillis() in com.google.common.base.Stopwatch has been 
> deprecated
432a436,439
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/Journal.java:[372,19]
>  [deprecation] Stopwatch() in com.google.common.base.Stopwatch has been 
> deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/Journal.java:[377,22]
>  [deprecation] elapsedTime(java.util.concurrent.TimeUnit) in 
> com.google.common.base.Stopwatch has been deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/Journal.java:[378,10]
>  [deprecation] elapsedTime(java.util.concurrent.TimeUnit) in 
> com.google.common.base.Stopwatch has been deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/Journal.java:[380,28]
>  [deprecation] elapsedTime(java.util.concurrent.TimeUnit) in 
> com.google.common.base.Stopwatch has been deprecated
435a443,444
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/IPCLoggerChannel.java:[133,45]
>  [deprecation] Stopwatch() in com.google.common.base.Stopwatch has been 
> deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/client/IPCLoggerChannel.java:[437,30]
>  [deprecation] elapsedMillis() in com.google.common.base.Stopwatch has been 
> deprecated
437a447,448
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/qjournal/server/TestJournalNode.java:[330,19]
>  [deprecation] Stopwatch() in com.google.common.base.Stopwatch has been 
> deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/qjournal/server/TestJournalNode.java:[334,18]
>  [deprecation] elapsedMillis() in com.google.common.base.Stopwatch has been 
> deprecated
438a450,453
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestMultiThreadedHflush.java:[103,21]
>  [deprecation] Stopwatch() in com.google.common.base.Stopwatch has been 
> deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestMultiThreadedHflush.java:[106,22]
>  [deprecation] elapsedTime(java.util.concurrent.TimeUnit) in 
> com.google.common.base.Stopwatch has been deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestMultiThreadedHflush.java:[279,21]
>  [deprecation] Stopwatch() in com.google.common.base.Stopwatch has been 
> deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestMultiThreadedHflush.java:[284,44]
>  [deprecation] elapsedMillis() in com.google.common.base.Stopwatch has been 
> deprecated
447a463,466
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/util/TestChunkedArrayList.java:[72,23]
>  [deprecation] Stopwatch() in com.google.common.base.Stopwatch has been 
> deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/util/TestChunkedArrayList.java:[77,51]
>  [deprecation] elapsedMillis() in com.google.common.base.Stopwatch has been 
> deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/util/TestChunkedArrayList.java:[84,23]
>  [deprecation] Stopwatch() in com.google.common.base.Stopwatch has been 
> deprecated
> [WARNING] 
> /home/jenkins/jenkins-slave/workspace/PreCommit-HADOOP-Build/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/util/TestChunkedArrayList.java:[89,51]
>  [deprecation] elapsedMillis() in com.google.common.base.Stopwatch has been 
> deprecated
{code}

> Update guava dependency to the latest version 15.0
> --------------------------------------------------
>
>                 Key: HADOOP-10101
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10101
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.2.0
>            Reporter: Rakesh R
>         Attachments: HADOOP-10101-002.patch, HADOOP-10101.patch
>
>
> The existing guava version is 11.0.2 which is quite old. This 



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