[jira] [Comment Edited] (HADOOP-11875) [JDK9] Renaming _ as a one-character identifier to another identifier

["Steve Loughran (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-11875?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15852805#comment-15852805 ] 

Steve Loughran edited comment on HADOOP-11875 at 2/4/17 2:13 PM:
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hamlet has to be considered something used downstream. 

Would it be possible for this patch to retain the _ but deprecate it, so that old code works, but people get told off? We could do that in 2.9 too, so you can do code that works there, & maybe remove it in trunk


was (Author: stevel@apache.org):
hamlet has to be considered something used downstream. 

Would it be possible for this patch to retain the _ but deprecate it in trunk, so that old code works, but people get told off?

> [JDK9] Renaming _ as a one-character identifier to another identifier
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-11875
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11875
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Tsuyoshi Ozawa
>            Assignee: Akira Ajisaka
>              Labels: webapp
>         Attachments: build_error_dump.txt, HADOOP-11875.01.patch
>
>
> From JDK9, _ as a one-character identifier is banned. Currently Web UI uses it. We should fix them to compile with JDK9. https://bugs.openjdk.java.net/browse/JDK-8061549



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