Cybersecurity
DevOps Cloud (ADM)
IT Operations Cloud
Have you tried this guide?
https://www.netiq.com/documentation/access-manager-45/admin/data/bok7icl.html#bhz5kn8
By default page encoding and charset is set to UTF-8, like this:
<%@ page pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>
When you are creating nidp_custom_resources.properties file, are you using editor that is writing file in UTF-8?