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https://issues.apache.org/jira/browse/HIVE-3632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13714144#comment-13714144
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Ashutosh Chauhan commented on HIVE-3632:
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[~xuefuz] Please tease out HIVE-4858 bits from the patch. 
It seems to me upgrade is required, we are changing column names. One way to 
test that is to create latest schema from script in 
metastore/scripts/upgrade/mysql in mysql, than apply your patch and than run 
tests against it. I will assume tests should fail because they wont find column 
names in mysql they are expecting.
                
> Upgrade datanucleus to support JDK7
> -----------------------------------
>
>                 Key: HIVE-3632
>                 URL: https://issues.apache.org/jira/browse/HIVE-3632
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>    Affects Versions: 0.9.1, 0.10.0, 0.11.0
>            Reporter: Chris Drome
>            Assignee: Xuefu Zhang
>            Priority: Critical
>             Fix For: 0.12.0
>
>         Attachments: HIVE-3632.patch
>
>
> I found serious problems with datanucleus code when using JDK7, resulting in 
> some sort of exception being thrown when datanucleus code is entered.
> I tried source=1.7, target=1.7 with JDK7 as well as source=1.6, target=1.6 
> with JDK7 and there was no visible difference in that the same unit tests 
> failed.
> I tried upgrading datanucleus to 3.0.1, as per HIVE-2084.patch, which did not 
> fix the failing tests.
> I tried upgrading datanucleus to 3.1-release, as per the advise of 
> http://www.datanucleus.org/servlet/jira/browse/NUCENHANCER-86, which suggests 
> using ASMv4 will allow datanucleus to work with JDK7. I was not successful 
> with this either.
> I tried upgrading datanucleus to 3.1.2. I was not successful with this either.
> Regarding datanucleus support for JDK7+, there is the following JIRA
> http://www.datanucleus.org/servlet/jira/browse/NUCENHANCER-81
> which suggests that they don't plan to actively support JDK7+ bytecode any 
> time soon.
> I also tested the following JVM parameters found on
> http://veerasundar.com/blog/2012/01/java-lang-verifyerror-expecting-a-stackmap-frame-at-branch-target-jdk-7/
> with no success either.
> This will become a more serious problem as people move to newer JVMs. If 
> there are other who have solved this issue, please post how this was done. 
> Otherwise, it is a topic that I would like to raise for discussion.
> Test Properties:
> CLEAR LIBRARY CACHE

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