code: private static CapacityDecrementer loadDecrementer(Extension decrementer, ClassLoaderPlugin classLoaderPlugin)
     {
        Object result = loadExtension(decrementer, classLoaderPlugin);
  
        if (result != null && result instanceof CapacityDecrementer)
        {
           return (CapacityDecrementer)result;
        }
  
        log.debugf("%s wasn't a CapacityDecrementer", decrementer.getClassName());
  
        return null;
     }
docs: Load the decrementer
  @param decrementer The incrementer metadata to load as class instance
  @param classLoaderPlugin class loader plugin to use to load class
  @return The decrementer