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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11903) test-patch should fail any new classes called Default-foo
Date Sat, 02 May 2015 13:00:10 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14525240#comment-14525240
] 

Steve Loughran commented on HADOOP-11903:
-----------------------------------------

Consider "New" as well. case in point, Pont Neuf, Paris: hard coded lack of forward planning

> test-patch should fail any new classes called Default-foo
> ---------------------------------------------------------
>
>                 Key: HADOOP-11903
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11903
>             Project: Hadoop Common
>          Issue Type: Test
>            Reporter: Allen Wittenauer
>
> In the past, we've named things like DefaultResourceCalculator, DefaultContainerExecutor,
and DefaultCodec that do nothing but cause problems down the road since they are effectively
version and functionality locked forever.  If these examples had been named what they truly
were (e.g., MemoryResourceCalculator, SimpleContainerExecutor, and GZipCodec), the defaults
could then be changed in the future in a compatible way. 
> One way to enforce this is to prevent the creation of new classes called Default-anything.




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