Two other issues that had to be addressed to make this work:

• The KarafExtender class was changed to install features in a separate thread because feature installation was changed to be single-threaded between Karaf 4.0.5 and 4.0.8. (commit 5cbfaf5b4f455225184950b238ccdea5e94f744b)

• The branding.properties file had to be duplicated as branding-ssh.properties since they are branded separately now. (commit 1e0462d35c55414e32f4383c65c168afc30ea22b)

This upgrade has been performed. Because it complicates the startup process, I've removed the Import-Service and Export-Service headers from our bundles so that they are not evaluated by Karaf. Marking as fixed.

https://github.com/OpenNMS/opennms/pull/1471

You can also force Karaf to enforce Import-Package restrictions in a particular way inside org.apache.karaf.features.cfg:

Slight correction: bnd might have been generating the Import-Service and Export-Service headers earlier but now Karaf (or the Felix resolver that it uses) has been changed to actually evaluate those headers during bundle resolution. This is a problem because the bundle resolution is synchronous but spawning the services is part of the async bundle startup. To be able to use this, we probably need to reorganize the Karaf startup into parenthetical phases and make sure that the ordering is correct. Because we don't do that right now, I'm just going to strip the Import-Service headers from our bundles. Service resolution will still work like it did before: if services are missing, you'll get GracePeriod timeouts.