code: @Override
  	protected StringBuffer doPostProcessBundle(BundleProcessingStatus status, StringBuffer bundleData)
  			throws IOException {
  
  		// Retrieve the full bundle path, so we will be able to define the
  		// relative path for the css images
  		String fullBundlePath = getFinalFullBundlePath(status);
  		PostProcessorCssImageUrlRewriter urlRewriter = createImageUrlRewriter(status);
  		return urlRewriter.rewriteUrl(status.getLastPathAdded(), fullBundlePath, bundleData.toString());
  	}
docs: /*
  (non-Javadoc)
  
  @see net.jawr.web.resource.bundle.postprocess.impl.
  AbstractChainedResourceBundlePostProcessor#doPostProcessBundle(net.jawr.
  web.resource.bundle.postprocess.BundleProcessingStatus,
  java.lang.StringBuffer)