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From "Richard Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ARIES-868) Subsystem support for woven package dependencies
Date Thu, 05 Jul 2012 10:29:34 GMT

    [ https://issues.apache.org/jira/browse/ARIES-868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13406966#comment-13406966
] 

Richard Ellis commented on ARIES-868:
-------------------------------------

As per the OSGi core spec WeavingHooks add new package dependencies to the DynamicImport-Package
header. So this may be a more general requirement for how the subsystems handle DynamicImport-Package.
                
> Subsystem support for woven package dependencies
> ------------------------------------------------
>
>                 Key: ARIES-868
>                 URL: https://issues.apache.org/jira/browse/ARIES-868
>             Project: Aries
>          Issue Type: Improvement
>          Components: Subsystem
>            Reporter: Mark Nuttall
>            Assignee: Mark Nuttall
>
> We need a mechanism to support woven package dependencies within subsystems. For example,
when running on Equinox 3.7+ the proxy code weaves a dependency on  org.apache.aries.proxy.weaving.WovenProxy
into application code. This prevents blueprint-managed subsystems from starting unless a bundle
explicitly imports the org.apache.aries.proxy.weaving package, which should not be necessary.
JPA is worse, in that multiple, and "harder to know" package dependencies are woven in. 
> Investigate mechanisms for informing the SubsystemResolverHook about woven packages so
that they can be permitted to resolve against the parent subsystem. 
> Develop one or more itests: for example, one that shows blueprint working in a subsystem
on Equinox 3.8 without explicitly stating woven package dependencies. 

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