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