code: @Override
  	public ResourceBundlePostProcessor buildPostProcessorChain(String processorKeys) {
  		if (null == processorKeys)
  			return null;
  		else if (PostProcessFactoryConstant.NO_POSTPROCESSING_KEY.equals(processorKeys))
  			return new EmptyResourceBundlePostProcessor();
  
  		StringTokenizer tk = new StringTokenizer(processorKeys, ",");
  
  		AbstractChainedResourceBundlePostProcessor chain = null;
  		while (tk.hasMoreTokens())
  			chain = addOrCreateChain(chain, tk.nextToken().trim());
  
  		return chain;
  	}
docs: /*
  (non-Javadoc)
  
  @see
  net.jawr.web.resource.bundle.factory.processor.PostProcessorChainFactory#
  buildPostProcessorChain(java.lang.String)