xinglin opened a new pull request, #5880:
URL: https://github.com/apache/hadoop/pull/5880
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### Description of PR
We noticed a few checkstyle warnings when backporting
[HDFS-17030](https://issues.apache.org/jira/browse/HDFS-17030) from trunk to
branch-3.3. The yetus build was not stable at that time and we did not notice
the newly added checkstyle warnings. Fix them now.
### How was this patch tested?
```
xinglin@xinglin-mn1 ~/p/h/t/hadoop-hdfs-project (HDFS-17118)> mvn test
-Dtest=TestObserverReadProxyProvider
[INFO] -------------------------------------------------------
[INFO] T E S T S
[INFO] -------------------------------------------------------
[INFO] Running
org.apache.hadoop.hdfs.server.namenode.ha.TestObserverReadProxyProvider
[INFO] Tests run: 16, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 7.99
s - in org.apache.hadoop.hdfs.server.namenode.ha.TestObserverReadProxyProvider
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 16, Failures: 0, Errors: 0, Skipped: 0
```
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