code: public Object startupService(BundleContext bundleContext)
      {
          // Good, Environment activator is up. Time to start up http services trackers
          
          for (String alias : getAliases())
          {
              Dictionary<String, String> properties = new Hashtable<String, String>();
              ServiceTracker serviceTracker = this.makeServletTracker(alias, properties);
              ((ServiceTracker)serviceTracker).open();
              context.registerService(ServiceTracker.class.getName(), serviceTracker, properties);    // Why isn't this done automatically?
          }
  
          return null;
      }
docs: Start this service.
  Override this to do all the startup.
  @return true if successful.