private List<ServiceRegistration> registrations;
@Override
public void start( BundleContext bundleContext ) throws Exception {
registrations = new ArrayList<>();
registrations.add( bundleContext.registerService( MvcFeature.class.getName(), new MvcFeature(), null ) );
registrations.add( bundleContext.registerService( MustacheTemplateProcessor.class.getName(), new MustacheTemplateProcessor(), null ) );
registrations.add( bundleContext.registerService( Static.class.getName(), new Static(), null ) );
registrations.add( bundleContext.registerService( Index.class.getName(), new Index(), null ) );
}