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https://issues.apache.org/jira/browse/HADOOP-7300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13036179#comment-13036179
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Hudson commented on HADOOP-7300:
--------------------------------
Integrated in Hadoop-Common-trunk #693 (See
[https://builds.apache.org/hudson/job/Hadoop-Common-trunk/693/])
HADOOP-7300. Configuration methods that return collections are inconsistent
about mutability. Contributed by Todd Lipcon.
todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1124368
Files :
*
/hadoop/common/trunk/src/test/core/org/apache/hadoop/conf/TestConfiguration.java
* /hadoop/common/trunk/CHANGES.txt
* /hadoop/common/trunk/src/java/org/apache/hadoop/conf/Configuration.java
* /hadoop/common/trunk/src/java/org/apache/hadoop/util/StringUtils.java
> Configuration methods that return collections are inconsistent about
> mutability
> -------------------------------------------------------------------------------
>
> Key: HADOOP-7300
> URL: https://issues.apache.org/jira/browse/HADOOP-7300
> Project: Hadoop Common
> Issue Type: Bug
> Components: conf
> Affects Versions: 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.22.0
>
> Attachments: hadoop-7300.txt
>
>
> In particular, getTrimmedStringCollection seems to return an immutable
> collection, whereas getStringCollection returns a mutable one.
> IMO we should always return mutable collections since these methods by
> definition are doing copies.
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