We should have an integration test (similar to the one used in HSEARCH) which makes sure the bundle declarations are functional so HV can be used within an OSGi environment (we currently don't provide any advanced support e.g. by exporting the validator factory as an OSGi service, but the HV has the required manifest and should be usable).

We also may consider to provide a Karaf features.xml file which simplifies setting up HV and its dependencies.