code: public static El retrievalMethod(final Class<?> clazz, final String methodName)
     {
        return new ElMethod(new TypeBasedExpression(clazz, methodName), null);
     }
docs: Create a new EL Method binding to retrieve values. This method allows the caller to supply the {@link Class}
  representing the type of the target object and the method name to refer to the method that should be invoked.