Github user ajs6f commented on the pull request:
https://github.com/apache/jena/pull/134#issuecomment-206409700
OSGi requires some [metadata](https://en.wikipedia.org/wiki/OSGi#Bundles)
to work, found in the `MANIFEST.MF` in `META-INF`. Most projects have that
auto-created at packaging via tooling like Maven. If it's not there, it has to
be added, as @jpullmann has done here. As I wrote
[here](https://github.com/apache/jena/pull/134#issuecomment-205975853), we can
(and should) try to get that upstream, to avoid exactly the special
customization to which you refer here.
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