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https://issues.apache.org/jira/browse/HDFS-8368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14538174#comment-14538174
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Rakesh R commented on HDFS-8368:
--------------------------------
Test case and FindBugs are unrelated to this patch. This fix will resolve
couple of failures in the {{Hadoop-HDFS-7285}} build.
> Erasure Coding: DFS opening a non-existent file need to be handled properly
> ---------------------------------------------------------------------------
>
> Key: HDFS-8368
> URL: https://issues.apache.org/jira/browse/HDFS-8368
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Rakesh R
> Assignee: Rakesh R
> Attachments: HDFS-8368-HDFS-7285.00.patch
>
>
> This jira to address bad exceptions when opening a non-existent file. It
> throws NPE as shown below:
> {code}
> java.lang.NullPointerException: null
> at org.apache.hadoop.hdfs.DFSClient.open(DFSClient.java:1184)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:307)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem$3.doCall(DistributedFileSystem.java:303)
> at
> org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
> at
> org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:303)
> at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:767)
> at
> org.apache.hadoop.hdfs.TestDistributedFileSystem.testDFSClient(TestDistributedFileSystem.java:359)
> at
> org.apache.hadoop.hdfs.TestDistributedFileSystem.testAllWithNoXmlDefaults(TestDistributedFileSystem.java:666)
> {code}
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