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https://issues.apache.org/jira/browse/HBASE-8534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13670411#comment-13670411
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Nick Dimiduk commented on HBASE-8534:
-------------------------------------

Regarding the junit tests being run in an isolated environment with default 
configs, I think you're right, that should be the common case. I'm thinking 
about a user who is running the test suite as a post-install smoke-test (as I 
believe we are advocating for 0.95+). In that scenario, their site-config can 
be picked up. I expect they would be running integration tests only, so this is 
probably fine.

Regarding ExitUtil, managing shared state in ExitUtil is equivalent to 
overriding the shared state that is a SecurityManager. I'd rather see the 
SecurityManager (with my previous comment about the constructor logic being 
fixed) over this ExitUtil implementation; the SecurityManager is less intrusive 
to non-test code.

[~nkeywal], [~apurtell] do either of you have an opinion on ExitUtil vs the 
custom SecurityManager in patch e?
                
> fix coverage org.apache.hadoop.hbase.mapreduce
> ----------------------------------------------
>
>                 Key: HBASE-8534
>                 URL: https://issues.apache.org/jira/browse/HBASE-8534
>             Project: HBase
>          Issue Type: Test
>    Affects Versions: 0.94.8, 0.95.2
>            Reporter: Aleksey Gorshkov
>         Attachments: HBASE-8534-0.94-d.patch, HBASE-8534-0.94-e.patch, 
> HBASE-8534-0.94-f.patch, HBASE-8534-0.94.patch, HBASE-8534-trunk-a.patch, 
> HBASE-8534-trunk-b.patch, HBASE-8534-trunk-c.patch, HBASE-8534-trunk-d.patch, 
> HBASE-8534-trunk-e.patch, HBASE-8534-trunk-f.patch, HBASE-8534-trunk.patch
>
>
> fix coverage org.apache.hadoop.hbase.mapreduce
> patch HBASE-8534-0.94.patch for branch-0.94
> patch HBASE-8534-trunk.patch for branch-0.95 and trunk

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