code: protected ChainedResourceBundlePostProcessor getCustomProcessorWrapper(ResourceBundlePostProcessor customProcessor,
  			String key, boolean isVariantPostProcessor) {
  		return new CustomPostProcessorChainWrapper(key, customProcessor, isVariantPostProcessor);
  	}
docs: Returns the custom processor wrapper
  
  @param customProcessor
  the custom processor
  @param key
  the id of the custom processor
  @param isVariantPostProcessor
  the flag indicating if it's a variant postprocessor
  @return the custom processor wrapper