The ACF server handles FW/1 links like this:
www.example.com/policy/index.cfm/hospitalpnp
Lucee 5.4 throws a path-not-found error.
It works in Lucee if I rewrite the link to this:
www.example.com/policy/index.cfm?action=hospitalpnp
There is something going on with the CGI scope. CGI.path_info has a value in ACF, but it’s blank in Lucee. I tried making CGI writable, but it didn’t help. I am willing to update Tomcat to emulate the ACF behavior. There are too many links to change everywhere, but I’m willing to make updates to the sites’s Application.cfc (that extends FW/1)
Links can be complex, like this, to view one policy:
www.example.com/policy/index.cfm/universitypnp/attView/id/10194
FW/1 opens the universitypnp.cfc file in the controller folder, running the function attView, passing the parameter id as 10194.
Lucee says the path, /policy/index.cfm/universitypnp/attView/id/10194, is not found.
It may help to hear what web server you’re using, and what version of FW/1, and what specific Lucee 5.4. It may proven pertinent to someone else seeing this.
And as you’d commented at the end of a related thread on the matter, did you consider some of things offered there? Granted that was folks using Mura—and as you’ve not mentioned it, I’ll assume you’re not.
But they were using FW/1, and the issue had to do with how the mura fw1 plugin was having issues that seem potentially related to your own code. Perhaps what they did could help guide you.
I appreciate you may hope someone just “has a fix”, if this “may be a known issue”. That’s the reason I asked the opening clarifications. I won’t likely have much more to offer. Think of this as me “priming the pump”. 
Thank you for the quick reply and feedback. I am continuing to work through possible fixes.
I am using Docker like this Dockerfile:
FROM lucee/lucee:5.4
COPY www/ /var/www/
COPY lucee-server-config/web.xml /usr/local/tomcat/conf/web.xml
I had been doing FROM lucee:latest, but dropping to 5.4 helped me out in several ways. This gives me Lucee 5.4.7.3
The web server is Tomcat 9.0.102. I hope this is where the fix will be. A mapping for /index.cfm/* is already set in web.xml, but there may be more to it.
FW/1 version 2 from 2009-2011
I am sure there’s a way to do this at the Lucee/Apache/Tomcat level. It would be nice to not have to touch the legacy code.
For expediency, I updated Application.setupRequest to parse CGI.request_url and redirect SES links with cflocation. It’s not ideal, as I have to maintain the parser and clone it to other applications.
Thanks Zackster, I’ll take a look. That might work. The parsing I did was straightforward, based on the slashes dividing the elements and is probably doable using urlrewrite.