OSGi Export and Import packages doubt.

Hi all.
Im working on a project with OSGi and Vaadin as web backend.
Looking at the OSGi related bundle Manifest information, I found many package exports that are only Web Resources of the Bundle. Is really necessary export this resources? (Only a thecnical question, about dependencies of this).
And I see dependencies of javax.sql, javax.naming, javax.naming.spi and javax.xml.namespace that is not present on “Import-Packages” list. More of this dependencies is about the new container present on Vaadin 6.7. This can be a problem.

Will be corret open a bug about that missing imports?

Thanks!!

Eduardo Frazão