useForwardingHeaders was renamed to useRemoteIpOptions to better reflect the config in only some code locations:
https://openliberty.io/docs/latest/reference/config/remoteIp.html

However, HttpInboundConnectionExtended.java uses useForwardedHeaders and that means additional renames.

There's also a slight rename here:

This should be reworked for consistency post Netty beta.
Originally posted by @volosied in #32308 (comment)