code: @Override
      public ExtendedBundle addingBundle(Bundle bundle, BundleEvent event) {
          ExtendedBundle extendedBundle =
              new ExtendedBundle(extendedBundleContext, bundle);
          if (extendedBundle.isImportingPAXWicketAPI() || extendedBundle.isImportingWicket()) {
              addRelevantBundle(extendedBundle);
              LOGGER.info("{} is added as a relevant bundle for pax wicket", bundle.getSymbolicName());
              return extendedBundle;
          } else {
              // No need to track this...
              return null;
          }
      }
docs: {@inheritDoc}