code: @Override
      public final void removedService(ServiceReference<HttpService> serviceReference, HttpService httpService) {
          // TODO This does not work well with multiple http services!
          synchronized (servlets) {
              for (ServletDescriptor servletDescriptor : servlets.values()) {
                  unregisterServletDescriptor(servletDescriptor);
              }
          }
          super.removedService(serviceReference, httpService);
      }
docs: {@inheritDoc}