code: public File getResourceRoot() throws IOException {
  	if (resourceRoot == null) {
  	    resourceRoot = new File(_getResourceRoot(), "lucee-server");
  	    if (!resourceRoot.exists()) resourceRoot.mkdirs();
  	}
  	return resourceRoot;
      }
docs: return directory to lucee resource root
  
  @return lucee root directory
  @throws IOException