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https://issues.apache.org/jira/browse/SLING-2570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13467812#comment-13467812
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Carsten Ziegeler commented on SLING-2570:
-----------------------------------------

This is more tricky than I thought:
- we need framework 4.3 to have the wiring package
- unfortunately if compiled against 4.3, the code doesn't work in 4.2 anymore
- this is not just because of the import package (which is fine and solved by 
hard coding)
- e.g. Version.compareTo changed from compareTo(Object) to compareTo(Version) 
which doesn't work on 4.2 as this method doesn't exist

I'm quiet unsure how to proceed and solve this
                
> Use Wiring API to check whether Installer Core bundle is affect by a bundle 
> update
> ----------------------------------------------------------------------------------
>
>                 Key: SLING-2570
>                 URL: https://issues.apache.org/jira/browse/SLING-2570
>             Project: Sling
>          Issue Type: Improvement
>          Components: Installer
>    Affects Versions: Installer Core 3.3.8
>            Reporter: Felix Meschberger
>            Assignee: Carsten Ziegeler
>             Fix For: Installer Core 3.4.0
>
>         Attachments: SLING-2570.patch
>
>
> Recently support has been built into the OSGi installer to check whether 
> update of bundles affects the Installer bundle itself (for wiring reasons). 
> This is currently implemented using the deprecated PackageAdmin service.
> For newer platforms where the OSGi Wiring API is available, the newer API 
> should be used for that check. This makes our code simpler and cleaner.

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