[jira] [Commented] (ISIS-789) Upgrade to DN 4.0

["Marcel Baumann (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ISIS-789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14153150#comment-14153150 ] 

Marcel Baumann commented on ISIS-789:
-------------------------------------

It would be great to support DN 4.0. From the tests I did it is currently not possible to Java-8 due to ASM library version which does not support Java 8 class file format. Therefore we cannot use the current version of Java in academic projects or proof of concepts with ISIS. We are somewhat nervous to see that DN 4.0 support moved form 1.7 to 2.0 release. We would truly appreciate if support for DN 4.0 and Java 8 is scheduled for 2014.

> Upgrade to DN 4.0
> -----------------
>
>                 Key: ISIS-789
>                 URL: https://issues.apache.org/jira/browse/ISIS-789
>             Project: Isis
>          Issue Type: Improvement
>          Components: Core: Objectstore: JDO
>    Affects Versions: objectstore-jdo-1.4.1
>            Reporter: Dan Haywood
>            Assignee: Dan Haywood
>            Priority: Minor
>             Fix For: core-2.0.0
>
>
> NB: DN 4.0 only supports Java 7, so this is also dependent on our moving to Java 7 across board (see ISIS-568).
> NB: should also check ISIS-647 (fix for http://www.datanucleus.org/servlet/jira/browse/NUCCORE-1103).
> - will possibly want to enable to get better perf?
> NB: also know that there's a change to the way that polymorphism works, is mapped differently (in Estatio).



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