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https://issues.apache.org/jira/browse/HDFS-16616?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shilun Fan updated HDFS-16616:
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Component/s: hdfs-common
Hadoop Flags: Reviewed
Target Version/s: 3.4.0
Affects Version/s: 3.4.0
> Remove the use if Sets#newHashSet and Sets#newTreeSet
> ------------------------------------------------------
>
> Key: HDFS-16616
> URL: https://issues.apache.org/jira/browse/HDFS-16616
> Project: Hadoop HDFS
> Issue Type: Task
> Components: hdfs-common
> Affects Versions: 3.4.0
> Reporter: Samrat Deb
> Assignee: Samrat Deb
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> As part of removing guava dependencies HADOOP-17115, HADOOP-17721,
> HADOOP-17722 and HADOOP-17720 are fixed,
> Currently the code call util function to create HashSet and TreeSet in the
> repo . These function calls dont have much importance as it is calling
> internally new HashSet<> / new TreeSet<> from java.utils
> This task is to clean up all the function calls to create sets which is
> redundant
> Before moving to java8 , sets were created using guava functions and API ,
> now since this is moved away and util code in the hadoop now looks like
> 1.
> public static <E extends Comparable> TreeSet<E> newTreeSet() { return new
> TreeSet<E>();
> 2.
> public static <E> HashSet<E> newHashSet()
> { return new HashSet(); }
> These interfaces dont do anything much just a extra layer of function call
> please refer to the task
> https://issues.apache.org/jira/browse/HADOOP-17726
> Can anyone review if this ticket add some value in the code.
> Looking forward to some input/ thoughts . If not adding any value we can
> close it and not move forward with changes !
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