code: public void stop(BundleContext context) throws Exception {
          ClassServiceUtility.log(context, LogService.LOG_INFO, "Stopping " + this.getClass().getName() + " Bundle");
      	if (this.shutdownService(service, context))
      		service = null;
          // Unregisters automatically
          this.context = null;
      }
docs: Bundle stopping.
  Don't override this, override shutdownService.