public static void registerOperators(String name,InputStream operatorsXML,ClassLoader classLoader){
  registerOperators(name,operatorsXML,classLoader,null);
}

public static void registerOperators ( String name , InputStream operatorsXML , ClassLoader classLoader ) { registerOperators ( name , operatorsXML , classLoader , null ) ; }
registers all operators from a given xml input stream . closes the stream .
