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https://issues.apache.org/jira/browse/HDFS-17451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17833394#comment-17833394
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ASF GitHub Bot commented on HDFS-17451:
---------------------------------------

hadoop-yetus commented on PR #6697:
URL: https://github.com/apache/hadoop/pull/6697#issuecomment-2033529207

   :broken_heart: **-1 overall**
   
   
   
   
   
   
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[/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs-rbf-warnings.html](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6697/1/artifact/out/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs-rbf-warnings.html)
 |  hadoop-hdfs-project/hadoop-hdfs-rbf in trunk has 1 extant spotbugs 
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   |  |   | 158m 11s |  |  |
   
   
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   | GITHUB PR | https://github.com/apache/hadoop/pull/6697 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
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   | modules | C: hadoop-hdfs-project/hadoop-hdfs-rbf U: 
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https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6697/1/console |
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   | Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
   
   
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> RBF: fix spotbugs for redundant nullcheck of dns.
> -------------------------------------------------
>
>                 Key: HDFS-17451
>                 URL: https://issues.apache.org/jira/browse/HDFS-17451
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Jian Zhang
>            Assignee: Jian Zhang
>            Priority: Major
>              Labels: pull-request-available
>
> h2. Dodgy code Warnings
> ||Code||Warning||
> |RCN|Redundant nullcheck of dns, which is known to be non-null in 
> org.apache.hadoop.hdfs.server.federation.router.RouterRpcServer.getCachedDatanodeReport(HdfsConstants$DatanodeReportType)|
> | |[Bug type RCN_REDUNDANT_NULLCHECK_OF_NONNULL_VALUE (click for 
> details)|https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6655/8/artifact/out/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs-rbf-warnings.html#RCN_REDUNDANT_NULLCHECK_OF_NONNULL_VALUE]
> In class org.apache.hadoop.hdfs.server.federation.router.RouterRpcServer
> In method 
> org.apache.hadoop.hdfs.server.federation.router.RouterRpcServer.getCachedDatanodeReport(HdfsConstants$DatanodeReportType)
> Value loaded from dns
> Return value of 
> org.apache.hadoop.thirdparty.com.google.common.cache.LoadingCache.get(Object) 
> of type Object
> Redundant null check at RouterRpcServer.java:[line 1093]|



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