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From "Xuefu Zhang (JIRA)" <>
Subject [jira] [Assigned] (HIVE-3632) datanucleus breaks when using JDK7
Date Mon, 15 Jul 2013 16:56:50 GMT


Xuefu Zhang reassigned HIVE-3632:

    Assignee: Xuefu Zhang
> datanucleus breaks when using JDK7
> ----------------------------------
>                 Key: HIVE-3632
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>    Affects Versions: 0.9.1, 0.10.0
>            Reporter: Chris Drome
>            Assignee: Xuefu Zhang
>            Priority: Critical
> 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,
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
> which suggests that they don't plan to actively support JDK7+ bytecode any time soon.
> I also tested the following JVM parameters found on
> 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.

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