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https://issues.apache.org/jira/browse/HDFS-8730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14636227#comment-14636227
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Takanobu Asanuma commented on HDFS-8730:
----------------------------------------

The warnings in {{ClientProtocol}} are "Unused import". The classes are
{noformat}
java.io.FileNotFoundException.
org.apache.hadoop.fs.FileAlreadyExistsException.
org.apache.hadoop.fs.ParentNotDirectoryException.
org.apache.hadoop.fs.UnresolvedLinkException.
org.apache.hadoop.hdfs.server.namenode.NotReplicatedYetException.
org.apache.hadoop.hdfs.server.namenode.SafeModeException.
org.apache.hadoop.security.AccessControlException.
{noformat}
They are only used in javadoc comments.

Hi, [~wheat9]. Please check my plan when you have free.
First removing the import statements, then comverting relative paths to 
absolute paths in the javadoc comments. How does look that?

> Clean up the import statements in ClientProtocol
> ------------------------------------------------
>
>                 Key: HDFS-8730
>                 URL: https://issues.apache.org/jira/browse/HDFS-8730
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Takanobu Asanuma
>            Assignee: Takanobu Asanuma
>            Priority: Minor
>
> There are some checkstyle warnings generated by HDFS-8620 in ClientProtocol. 
> They were about the import statements.



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