docs: @Override
      public void stop(BundleContext context) {
  
          if (systemConfiguration != null) {
              systemConfiguration.stop();
              systemConfiguration = null;
          }
  
          if (metaTypeRegistry != null) {
              metaTypeRegistry.stop(context);
              metaTypeRegistry = null;
          }
  
          if (null != caSupportTracker) {
              caSupportTracker.close();
              caSupportTracker = null;
          }
  
          if (null != locationTracker) {
              locationTracker.close();
              locationTracker = null;
          }
  
          if (null != variableRegistryTracker) {
              variableRegistryTracker.close();
              variableRegistryTracker = null;
          }
      }