code: @Override
  	public FsStateBackend configure(Configuration config, ClassLoader classLoader) {
  		return new FsStateBackend(this, config, classLoader);
  	}
docs: Creates a copy of this state backend that uses the values defined in the configuration
  for fields where that were not specified in this state backend.
  
  @param config the configuration
  @return The re-configured variant of the state backend