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Date: Thu, 16 Aug 2012 17:50:37 +1100 (NCT)
From: "Felix Meschberger (JIRA)" <jira@apache.org>
To: oak-dev@jackrabbit.apache.org
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Subject: [jira] [Commented] (OAK-245) Add import for org.h2 in oak-mk bundle
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    [ https://issues.apache.org/jira/browse/OAK-245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13435797#comment-13435797 ] 

Felix Meschberger commented on OAK-245:
---------------------------------------

> I don't consider this "a bug". Let's say it doesn't work well with OSGi.

Ok, lets land in on "doesn't cope well with dynamic module systems". See also http://blog.meschberger.ch/2010/12/classforname-probably-not.html and BJ Hargrave's findings on this.
                
> Add import for org.h2 in oak-mk bundle
> --------------------------------------
>
>                 Key: OAK-245
>                 URL: https://issues.apache.org/jira/browse/OAK-245
>             Project: Jackrabbit Oak
>          Issue Type: Bug
>          Components: mk
>            Reporter: Chetan Mehrotra
>              Labels: osgi
>         Attachments: import-h2.patch, OAK-245-load-driver.patch
>
>
> The oak-mk bundle depends on H2 database. It internally uses Class.forName('org.h2.Driver") to load the H2 driver. Due to usage of Class.forName Bnd is not able to add org.h2 package to Import-Package list. So it should have an explicit entry in the maven-bundle-plugin config as shown below
> {code:xml}
> <Import-Package>
>   org.h2;resolution:=optional,
>   *
> </Import-Package>
> {code}
> Without this MicroKernalService loading would fail with a CNFE

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