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https://issues.apache.org/jira/browse/HBASE-21140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16604084#comment-16604084
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Xu Cang commented on HBASE-21140:
---------------------------------

Update:

(Patch from https://issues.apache.org/jira/browse/HBASE-15728 for branch-1 is 
already reverted today. So I will put a big patch in this Jira including 
HBASE-15728 for branch-1 and the fix to deal with NPE)

My plan:

I will follow [~Apache9] 's suggestion to fix the NPE only. I will leave 
backporting HBASE-21150 to another separate issue. 

 

Thanks, [[email protected]] ! next time if I backport your fix, I will put 
your email address in the patch. 

 

> Backport 'HBASE-21136 NPE in MetricsTableSourceImpl.updateFlushTime' to 
> branch-1
> --------------------------------------------------------------------------------
>
>                 Key: HBASE-21140
>                 URL: https://issues.apache.org/jira/browse/HBASE-21140
>             Project: HBase
>          Issue Type: Bug
>          Components: metrics
>            Reporter: Duo Zhang
>            Assignee: Xu Cang
>            Priority: Major
>             Fix For: 1.5.0
>
>         Attachments: 
> HBASE-21140.diff_against_cf198a65e8d704d28538c4c165a941b9e5bac678.branch-1.001.patch
>
>
> There is no computeIfAbsent method on branch-1 as we still need to support 
> JDK7, so the fix will be different with branch-2+.



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