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From "Niall Pemberton (JIRA)" <>
Subject [jira] Commented: (MATH-275) MANIFEST.MF contains incorrect "Import-Package" OSGi header (makes it unusable for OSGi)
Date Sun, 07 Jun 2009 22:12:07 GMT


Niall Pemberton commented on MATH-275:

Commons uses the maven-bundle-plugin which is a wrapper for the Bnd tool and this is the default
behaviour. This issue has been raised a few times before, I'm not an OSGi expert but we took
advice from the Apache Felix project who maintain the maven plugin - in the words of Peter
Kriens who is one of the leading OSGi experts and author of the Bnd tool:

"Bnd automatically imports all exports to allow substitutability. If  you do not do this,
you create all kinds of standalone class spaces  and things will not work together. It is
generally bad practice to  only export a package."

> MANIFEST.MF contains incorrect "Import-Package" OSGi header (makes it unusable for OSGi)
> ----------------------------------------------------------------------------------------
>                 Key: MATH-275
>                 URL:
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 1.2
>            Reporter: Paul Field
> The MANIFEST.MF file contains this OSGi header:
> Import-Package:,
>  org.apache.commons.math;version=1.2,
>  org.apache.commons.math.analysis;version=1.2,
>  org.apache.commons.math.complex;version=1.2,
> ...
> This header defines what the bundle requires from the OSGi runtime and so it shouldn't
include the packages defined in the bundle (i.e. all the org.apache.commons packages). I suspect
it shouldn't include the package either as I can't see
that math has a dependency on that (I could be wrong :-) ).
> The presence of this header causes the Math library to be unusable as an OSGi bundle
in Eclipse RCP development (and I suspect in any OSGI container).

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