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https://issues.apache.org/jira/browse/HDFS-16720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17575909#comment-17575909
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ASF GitHub Bot commented on HDFS-16720:
---------------------------------------
ZanderXu opened a new pull request, #4709:
URL: https://github.com/apache/hadoop/pull/4709
### Description of PR
During reading code in hadoop-hdfs module, I found that there is import *
case in some classes, such as
```
// BlockPlacementPolicyDefault.java
import java.util.*;
```
I feel that we should import detailed class instead of *.
> Import detailed class instead of import * in hadoop-hdfs moulde
> ---------------------------------------------------------------
>
> Key: HDFS-16720
> URL: https://issues.apache.org/jira/browse/HDFS-16720
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Major
>
> During reading code in hadoop-hdfs module, I found that there is import *
> case in some classes, such as
> {code:java}
> // BlockPlacementPolicyDefault.java
> import java.util.*;{code}
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